{"id":15618,"date":"2024-01-14T18:36:17","date_gmt":"2024-01-14T15:06:17","guid":{"rendered":"https:\/\/rasanegar.com\/blog\/%d8%a7%d8%b9%d8%aa%d8%a8%d8%a7%d8%b1-%d8%b3%d9%86%d8%ac%db%8c-%d9%81%d8%b1%d9%85-%d9%81%d9%84%d8%a7%d8%b3%da%a9-%d8%a8%d8%a7-flask-wtf\/"},"modified":"2024-01-14T18:36:17","modified_gmt":"2024-01-14T15:06:17","slug":"%d8%a7%d8%b9%d8%aa%d8%a8%d8%a7%d8%b1-%d8%b3%d9%86%d8%ac%db%8c-%d9%81%d8%b1%d9%85-%d9%81%d9%84%d8%a7%d8%b3%da%a9-%d8%a8%d8%a7-flask-wtf","status":"publish","type":"post","link":"https:\/\/rasanegaar.com\/blog\/%d8%a7%d8%b9%d8%aa%d8%a8%d8%a7%d8%b1-%d8%b3%d9%86%d8%ac%db%8c-%d9%81%d8%b1%d9%85-%d9%81%d9%84%d8%a7%d8%b3%da%a9-%d8%a8%d8%a7-flask-wtf\/","title":{"rendered":"\u0627\u0639\u062a\u0628\u0627\u0631 \u0633\u0646\u062c\u06cc \u0641\u0631\u0645 \u0641\u0644\u0627\u0633\u06a9 \u0628\u0627 Flask-WTF"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\"><p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0633\u0631\u0641\u0635\u0644\u0647\u0627\u06cc \u0645\u0637\u0644\u0628<\/p>\n<\/div><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%a7%d8%b9%d8%aa%d8%a8%d8%a7%d8%b1-%d8%b3%d9%86%d8%ac%db%8c-%d9%81%d8%b1%d9%85-%d9%81%d9%84%d8%a7%d8%b3%da%a9-%d8%a8%d8%a7-flask-wtf\/#%d9%85%d8%b9%d8%b1%d9%81%db%8c\" >\u0645\u0639\u0631\u0641\u06cc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%a7%d8%b9%d8%aa%d8%a8%d8%a7%d8%b1-%d8%b3%d9%86%d8%ac%db%8c-%d9%81%d8%b1%d9%85-%d9%81%d9%84%d8%a7%d8%b3%da%a9-%d8%a8%d8%a7-flask-wtf\/#%d8%a8%d8%b1%d9%be%d8%a7%db%8c%db%8c\" >\u0628\u0631\u067e\u0627\u06cc\u06cc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%a7%d8%b9%d8%aa%d8%a8%d8%a7%d8%b1-%d8%b3%d9%86%d8%ac%db%8c-%d9%81%d8%b1%d9%85-%d9%81%d9%84%d8%a7%d8%b3%da%a9-%d8%a8%d8%a7-flask-wtf\/#%d8%a7%d8%b9%d8%aa%d8%a8%d8%a7%d8%b1_%d8%b3%d9%86%d8%ac%db%8c_%d9%81%d8%b1%d9%85_%d9%81%d9%84%d8%a7%d8%b3%da%a9_%d8%a8%d8%a7_flask-wtforms\" >\u0627\u0639\u062a\u0628\u0627\u0631 \u0633\u0646\u062c\u06cc \u0641\u0631\u0645 \u0641\u0644\u0627\u0633\u06a9 \u0628\u0627 Flask-WTForms<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%a7%d8%b9%d8%aa%d8%a8%d8%a7%d8%b1-%d8%b3%d9%86%d8%ac%db%8c-%d9%81%d8%b1%d9%85-%d9%81%d9%84%d8%a7%d8%b3%da%a9-%d8%a8%d8%a7-flask-wtf\/#%d8%a8%db%8c%d8%b4%d8%aa%d8%b1_%d9%81%db%8c%d9%84%d8%af%d9%87%d8%a7%db%8c_wtforms_%d9%88_%d8%a7%d8%b9%d8%aa%d8%a8%d8%a7%d8%b1_%d8%b3%d9%86%d8%ac%db%8c_%d8%a8%d8%a7_%d9%81%d8%b1%d9%85_%d8%ab%d8%a8%d8%aa_%d9%86%d8%a7%d9%85_%da%a9%d8%a7%d8%b1%d8%a8%d8%b1\" >\u0628\u06cc\u0634\u062a\u0631 \u0641\u06cc\u0644\u062f\u0647\u0627\u06cc WTForms \u0648 \u0627\u0639\u062a\u0628\u0627\u0631 \u0633\u0646\u062c\u06cc \u0628\u0627 \u0641\u0631\u0645 \u062b\u0628\u062a \u0646\u0627\u0645 \u06a9\u0627\u0631\u0628\u0631<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%a7%d8%b9%d8%aa%d8%a8%d8%a7%d8%b1-%d8%b3%d9%86%d8%ac%db%8c-%d9%81%d8%b1%d9%85-%d9%81%d9%84%d8%a7%d8%b3%da%a9-%d8%a8%d8%a7-flask-wtf\/#%d8%a7%db%8c%d8%ac%d8%a7%d8%af_%d8%a7%d8%b9%d8%aa%d8%a8%d8%a7%d8%b1%d8%b3%d9%86%d8%ac%db%8c_%d8%b3%d9%81%d8%a7%d8%b1%d8%b4%db%8c_%d8%ae%d9%88%d8%af\" >\u0627\u06cc\u062c\u0627\u062f \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u0633\u0641\u0627\u0631\u0634\u06cc \u062e\u0648\u062f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%a7%d8%b9%d8%aa%d8%a8%d8%a7%d8%b1-%d8%b3%d9%86%d8%ac%db%8c-%d9%81%d8%b1%d9%85-%d9%81%d9%84%d8%a7%d8%b3%da%a9-%d8%a8%d8%a7-flask-wtf\/#%d9%86%d8%aa%db%8c%d8%ac%d9%87\" >\u0646\u062a\u06cc\u062c\u0647<\/a><\/li><\/ul><\/nav><\/div>\n<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u0632\u0645\u0627\u0646 \u0644\u0627\u0632\u0645 \u0628\u0631\u0627\u06cc \u0645\u0637\u0627\u0644\u0639\u0647: <\/span> <span class=\"rt-time\"> 8<\/span> <span class=\"rt-label rt-postfix\">\u062f\u0642\u06cc\u0642\u0647<\/span><\/span><p> <br \/>\n<\/p>\n<div><noscript><\/noscript><\/p>\n<h2 id=\"introduction\"><span class=\"ez-toc-section\" id=\"%d9%85%d8%b9%d8%b1%d9%81%db%8c\"><\/span>\u0645\u0639\u0631\u0641\u06cc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0627\u0639\u062a\u0628\u0627\u0631 \u0633\u0646\u062c\u06cc \u0641\u0631\u0645 \u06cc\u06a9\u06cc \u0627\u0632 \u0636\u0631\u0648\u0631\u06cc \u062a\u0631\u06cc\u0646 \u0627\u062c\u0632\u0627\u06cc \u0648\u0631\u0648\u062f \u062f\u0627\u062f\u0647 \u0647\u0627 \u062f\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u0648\u0628 \u0627\u0633\u062a.  \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0627\u0634\u062a\u0628\u0627\u0647 \u06a9\u0646\u0646\u062f\u060c \u0628\u0631\u062e\u06cc \u0627\u0632 \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u0628\u062f\u062e\u0648\u0627\u0647 \u0647\u0633\u062a\u0646\u062f.  \u0628\u0627 \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u0648\u0631\u0648\u062f\u06cc\u060c \u0627\u0632 \u0628\u0631\u0646\u0627\u0645\u0647 \u062e\u0648\u062f \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0628\u062f\u06cc \u06a9\u0647 \u0628\u0631 \u0645\u0646\u0637\u0642 \u062a\u062c\u0627\u0631\u06cc \u0648 \u0648\u0631\u0648\u062f\u06cc \u0647\u0627\u06cc \u0645\u062e\u0631\u0628\u06cc \u06a9\u0647 \u0628\u0647 \u0645\u0646\u0638\u0648\u0631 \u0622\u0633\u06cc\u0628 \u0631\u0633\u0627\u0646\u062f\u0646 \u0628\u0647 \u0633\u06cc\u0633\u062a\u0645 \u0647\u0627\u06cc \u0645\u0627 \u062a\u0623\u062b\u06cc\u0631 \u0645\u06cc \u06af\u0630\u0627\u0631\u062f \u0645\u062d\u0627\u0641\u0638\u062a \u0645\u06cc \u06a9\u0646\u06cc\u0645.<\/p>\n<p>\u062a\u0644\u0627\u0634 \u0628\u0631\u0627\u06cc process \u0648\u0631\u0648\u062f\u06cc\u200c\u0647\u0627\u06cc \u0646\u0627\u0645\u0639\u062a\u0628\u0631 \u06a9\u0627\u0631\u0628\u0631 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u0646\u062f \u0628\u0627\u0639\u062b \u0628\u0631\u0648\u0632 \u0628\u0627\u06af\u200c\u0647\u0627\u06cc \u063a\u06cc\u0631\u0645\u0646\u062a\u0638\u0631\u0647\/\u063a\u06cc\u0631\u0642\u0627\u0628\u0644 \u0631\u0633\u06cc\u062f\u06af\u06cc \u0634\u0648\u0646\u062f\u060c \u062f\u0631 \u0635\u0648\u0631\u062a\u06cc \u06a9\u0647 \u062e\u0631\u0627\u0628\u06cc \u0633\u0631\u0648\u0631 \u0646\u0628\u0627\u0634\u062f.  \u062f\u0631 \u0627\u06cc\u0646 \u0632\u0645\u06cc\u0646\u0647\u060c \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627 \u0628\u0647 \u0645\u0639\u0646\u0627\u06cc \u062a\u0623\u06cc\u06cc\u062f \u0648\u0631\u0648\u062f\u06cc \u0648 \u0628\u0631\u0631\u0633\u06cc \u0627\u06cc\u0646\u06a9\u0647 \u0622\u06cc\u0627 \u0627\u0646\u062a\u0638\u0627\u0631\u0627\u062a \u06cc\u0627 \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u062e\u0627\u0635\u06cc \u0631\u0627 \u0628\u0631\u0622\u0648\u0631\u062f\u0647 \u0645\u06cc \u06a9\u0646\u062f \u06cc\u0627 \u062e\u06cc\u0631.  \u0627\u0639\u062a\u0628\u0627\u0631 \u0633\u0646\u062c\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627 \u0642\u0627\u0628\u0644 \u0627\u0646\u062c\u0627\u0645 \u0627\u0633\u062a \u0631\u0648\u06cc \u0647\u0631 \u062f\u0648 \u0642\u0633\u0645\u062a \u062c\u0644\u0648 \u0648 \u0639\u0642\u0628<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0622\u0645\u0648\u0632\u0634\u060c \u0631\u0648\u0634 \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u0648\u0631\u0648\u062f\u06cc \u06a9\u0627\u0631\u0628\u0631 \u062f\u0631 \u0641\u0631\u0645\u200c\u0647\u0627\u06cc Flask \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 <em>Flask-WTForms<\/em> \u0627\u0641\u0632\u0648\u0646\u0647.<\/p>\n<p>\u062f\u0631 \u067e\u0627\u06cc\u0627\u0646 \u0627\u06cc\u0646 \u0622\u0645\u0648\u0632\u0634\u060c \u0641\u0631\u0645 \u062b\u0628\u062a \u0646\u0627\u0645 \u06a9\u0627\u0631\u0628\u0631 \u0632\u06cc\u0631 \u0631\u0627 \u0628\u0627 \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u0627\u0639\u062a\u0628\u0627\u0631 \u0633\u0646\u062c\u06cc \u062e\u0648\u0627\u0647\u06cc\u0645 \u062f\u0627\u0634\u062a:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/flask-form-validation-with-wtforms-01.png\" alt=\"\u0641\u0631\u0645 \u062b\u0628\u062a \u0646\u0627\u0645 \u0628\u0627 \u0627\u0639\u062a\u0628\u0627\u0631 \u0633\u0646\u062c\u06cc\" title=\"\"><\/p>\n<p>\u0645\u0627 \u0627\u0632 \u0646\u0633\u062e\u0647 Flask \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062e\u0648\u0627\u0647\u06cc\u0645 \u06a9\u0631\u062f <em>1.1.2<\/em> \u0648 Flask-WTF \u0628\u0627 \u0646\u0633\u062e\u0647 <em>0.14.3<\/em>.<\/p>\n<h2 id=\"setup\"><span class=\"ez-toc-section\" id=\"%d8%a8%d8%b1%d9%be%d8%a7%db%8c%db%8c\"><\/span>\u0628\u0631\u067e\u0627\u06cc\u06cc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0636\u0631\u0648\u0631\u06cc \u0646\u06cc\u0633\u062a\u060c \u062a\u0648\u0635\u06cc\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645 \u06cc\u06a9 \u0645\u062d\u06cc\u0637 \u0645\u062c\u0627\u0632\u06cc \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f \u062a\u0627 \u0622\u0646 \u0631\u0627 \u062f\u0646\u0628\u0627\u0644 \u06a9\u0646\u06cc\u062f:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-meta\">$<\/span><span class=\"bash\"> mkdir flask-form-validation<\/span>\n<span class=\"hljs-meta\">$<\/span><span class=\"bash\"> <span class=\"hljs-built_in\">cd<\/span> flask-form-validation<\/span>\n<span class=\"hljs-meta\">$<\/span><span class=\"bash\"> python3 -m venv .<\/span>\n<span class=\"hljs-meta\">$<\/span><span class=\"bash\"> . bin\/activate<\/span>\n<\/code><\/pre>\n<p>\u062f\u0631 \u0645\u062d\u06cc\u0637 \u0645\u062c\u0627\u0632\u06cc \u0641\u0639\u0627\u0644 \u0634\u062f\u0647 \u0634\u0645\u0627\u060c \u0628\u0633\u062a\u0647 \u0647\u0627\u06cc \u062e\u0648\u062f \u0631\u0627 \u0628\u0627 \u062a\u0627\u06cc\u067e \u06a9\u0631\u062f\u0646:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-meta\">$<\/span><span class=\"bash\"> pip install Flask Flask-WTF<\/span>\n<\/code><\/pre>\n<p><strong>\u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f<\/strong> \u06a9\u0647 \u0627\u06af\u0631 \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u062f \u0627\u0632 \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u0627\u06cc\u0645\u06cc\u0644 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f\u060c \u0628\u0627\u06cc\u062f \u0622\u0646 \u0631\u0627 \u0646\u06cc\u0632 \u0646\u0635\u0628 \u06a9\u0646\u06cc\u062f <code>email_validator<\/code> \u0628\u0633\u062a\u0647 (\u0646\u0633\u062e\u0647 \u0641\u0639\u0644\u06cc \u0627\u0633\u062a <em>1.1.1<\/em>):<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-meta\">$<\/span><span class=\"bash\"> pip3 install email_validator<\/span>\n<\/code><\/pre>\n<p>\u062d\u0627\u0644\u0627 \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0641\u0627\u06cc\u0644 \u0647\u0627\u06cc \u0644\u0627\u0632\u0645 \u062e\u0648\u062f \u0631\u0627 \u0628\u0633\u0627\u0632\u06cc\u0645.  \u0645\u0627 \u0628\u0627 \u0627\u06cc\u062c\u0627\u062f \u06cc\u06a9 \u067e\u0627\u06cc\u0647 \u0634\u0631\u0648\u0639 \u062e\u0648\u0627\u0647\u06cc\u0645 \u06a9\u0631\u062f <code>app.py<\/code>\u060c \u06a9\u0647 \u0628\u0631\u0627\u06cc \u0633\u0627\u062f\u06af\u06cc\u060c \u0634\u0627\u0645\u0644 \u0628\u0631\u0646\u0627\u0645\u0647\u060c \u0645\u0633\u06cc\u0631\u0647\u0627 \u0648 \u0641\u0631\u0645\u200c\u0647\u0627\u06cc Flask \u0645\u0627 \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">from<\/span> flask <span class=\"hljs-keyword\">import<\/span> Flask, render_template\n\napp = Flask(__name__, template_folder=<span class=\"hljs-string\">'.'<\/span>)\napp.config(<span class=\"hljs-string\">'SECRET_KEY'<\/span>)=<span class=\"hljs-string\">'LongAndRandomSecretKey'<\/span>\n<\/code><\/pre>\n<p>\u0645\u0627 \u06cc\u06a9 \u0634\u06cc Flask \u0627\u06cc\u062c\u0627\u062f \u06a9\u0631\u062f\u06cc\u0645 \u0648 \u062a\u0646\u0638\u06cc\u0645 \u06a9\u0631\u062f\u06cc\u0645 <code>template_folder<\/code> \u0628\u0647 \u067e\u0648\u0634\u0647 \u0641\u0639\u0644\u06cc  \u0633\u067e\u0633 \u0645\u0627 \u0631\u0627 \u0627\u062e\u062a\u0635\u0627\u0635 \u062f\u0627\u062f\u06cc\u0645 <code>Flask<\/code> \u0627\u0639\u062a\u0631\u0627\u0636 \u0628\u0647 <code>app<\/code> \u0645\u062a\u063a\u06cc\u0631.  \u0627\u0636\u0627\u0641\u0647 \u06a9\u0631\u062f\u06cc\u0645 <code>SECRET_KEY<\/code> \u0628\u0647 \u0645\u0627 <code>app<\/code> \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u0634\u06cc<\/p>\n<p>\u0627\u06cc\u0646 <code>SECRET_KEY<\/code> \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0628\u0631\u0627\u06cc \u0631\u0645\u0632\u06af\u0630\u0627\u0631\u06cc \u0628\u0627 \u0627\u062a\u0635\u0627\u0644\u0627\u062a \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0648 \u062c\u0644\u0633\u0627\u062a \u0645\u0631\u0648\u0631\u06af\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f.  WTForms \u0627\u0632 <code>SECRET_KEY<\/code> \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0646\u0645\u06a9 \u0628\u0631\u0627\u06cc \u0627\u06cc\u062c\u0627\u062f \u06cc\u06a9 \u062a\u0648\u06a9\u0646 CSRF.  \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u062f\u0631 \u0645\u0648\u0631\u062f CSRF \u0628\u06cc\u0634\u062a\u0631 \u0628\u062e\u0648\u0627\u0646\u06cc\u062f \u0631\u0648\u06cc <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/en.wikipedia.org\/wiki\/Cross-site_request_forgery\">\u0627\u06cc\u0646 \u0648\u06cc\u06a9\u06cc page.<\/a><\/p>\n<p>\u0627\u06af\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u0634\u0645\u0627 \u0642\u0628\u0644\u0627\u064b \u0627\u0632 <code>SECRET_KEY<\/code> \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u0628\u0631\u0627\u06cc \u0645\u0642\u0627\u0635\u062f \u062f\u06cc\u06af\u0631\u060c \u0634\u0645\u0627 \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u062f \u06cc\u06a9 \u0645\u0648\u0631\u062f \u062c\u062f\u06cc\u062f \u0628\u0631\u0627\u06cc WTForms \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f.  \u062f\u0631 \u0627\u06cc\u0646 \u0635\u0648\u0631\u062a \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u062a\u0646\u0638\u06cc\u0645 \u06a9\u0646\u06cc\u062f <code>WTF_CSRF_SECRET_KEY<\/code> \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc<\/p>\n<p>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u06cc\u06a9 \u0641\u0631\u0645 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u0645 \u0648 \u0628\u0647 \u062c\u0631\u06cc\u0627\u0646 \u062e\u0648\u062f \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u0645 <code>app.py<\/code>:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">from<\/span> flask <span class=\"hljs-keyword\">import<\/span> Flask, render_template\n<span class=\"hljs-keyword\">from<\/span> flask_wtf <span class=\"hljs-keyword\">import<\/span> FlaskForm\n<span class=\"hljs-keyword\">from<\/span> wtforms <span class=\"hljs-keyword\">import<\/span> StringField, SubmitField\n\n<span class=\"hljs-class\"><span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title\">GreetUserForm<\/span>(<span class=\"hljs-params\">FlaskForm<\/span>):<\/span>\n    username = StringField(label=(<span class=\"hljs-string\">'Enter Your Name:'<\/span>))\n    submit = SubmitField(label=(<span class=\"hljs-string\">'Submit'<\/span>))\n\n\n<\/code><\/pre>\n<p>\u0633\u0627\u062f\u0647 \u0645\u0627 <code>GreetUserForm<\/code> \u06a9\u0644\u0627\u0633 \u0634\u0627\u0645\u0644 a <code>StringField<\/code>.  \u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u0627\u0632 \u0646\u0627\u0645 \u0622\u0646 \u067e\u06cc\u062f\u0627\u0633\u062a\u060c \u0627\u06cc\u0646 \u0641\u06cc\u0644\u062f \u0627\u0646\u062a\u0638\u0627\u0631 \u062f\u0627\u0631\u062f \u0648 \u0645\u0642\u062f\u0627\u0631 \u0631\u0634\u062a\u0647 \u0627\u06cc \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f (\u0647\u0645\u06cc\u0634\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0622\u0646 \u0648\u0631\u0648\u062f\u06cc \u0631\u0627 \u062f\u0631 \u0635\u0648\u0631\u062a \u0646\u06cc\u0627\u0632 \u0628\u0647 \u0627\u0646\u0648\u0627\u0639 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u062f\u06cc\u06af\u0631 \u062a\u0628\u062f\u06cc\u0644 \u06a9\u0646\u06cc\u062f).  \u0646\u0627\u0645 \u0631\u0634\u062a\u0647 \u0627\u0633\u062a <code>username<\/code>\u060c \u0648 \u0627\u0632 \u0627\u06cc\u0646 \u0646\u0627\u0645 \u0628\u0631\u0627\u06cc \u062f\u0633\u062a\u0631\u0633\u06cc \u0628\u0647 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0639\u0646\u0635\u0631 \u0641\u0631\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645.<\/p>\n<p>\u0627\u06cc\u0646 <code>label<\/code> \u067e\u0627\u0631\u0627\u0645\u062a\u0631\u0647\u0627 \u0686\u06cc\u0632\u06cc \u0647\u0633\u062a\u0646\u062f \u06a9\u0647 \u0627\u0631\u0627\u0626\u0647 \u062e\u0648\u0627\u0647\u0646\u062f \u0634\u062f \u0631\u0648\u06cc \u0645\u0627 page \u0628\u0647 \u0637\u0648\u0631\u06cc \u06a9\u0647 \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u0645\u062a\u0648\u062c\u0647 \u0634\u0648\u0646\u062f \u06a9\u0647 \u06cc\u06a9 \u0639\u0646\u0635\u0631 \u0641\u0631\u0645 \u0686\u0647 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc\u06cc \u0631\u0627 \u062c\u0645\u0639 \u0622\u0648\u0631\u06cc \u0645\u06cc \u06a9\u0646\u062f.  \u0645\u0627 \u0647\u0645\u0686\u0646\u06cc\u0646 \u06cc\u06a9 <code>submit<\/code> \u062f\u06a9\u0645\u0647\u060c \u06a9\u0647 \u0633\u0639\u06cc \u0645\u06cc \u06a9\u0646\u062f \u062f\u0631 \u0635\u0648\u0631\u062a\u06cc \u06a9\u0647 \u0647\u0645\u0647 \u0641\u06cc\u0644\u062f\u0647\u0627 \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u0645\u0627 \u0631\u0627 \u062a\u0623\u06cc\u06cc\u062f \u06a9\u0646\u0646\u062f\u060c \u0641\u0631\u0645 \u0631\u0627 \u0627\u0631\u0633\u0627\u0644 \u06a9\u0646\u062f.<\/p>\n<p>\u0627\u06a9\u0646\u0648\u0646 \u06a9\u0647 \u0631\u0627\u0647 \u0627\u0646\u062f\u0627\u0632\u06cc \u0634\u062f\u06cc\u0645\u060c \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0627\u0632 WTForms \u0628\u0631\u0627\u06cc \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u062e\u0648\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645!<\/p>\n<h2 id=\"flaskformvalidationwithflaskwtforms\"><span class=\"ez-toc-section\" id=\"%d8%a7%d8%b9%d8%aa%d8%a8%d8%a7%d8%b1_%d8%b3%d9%86%d8%ac%db%8c_%d9%81%d8%b1%d9%85_%d9%81%d9%84%d8%a7%d8%b3%da%a9_%d8%a8%d8%a7_flask-wtforms\"><\/span>\u0627\u0639\u062a\u0628\u0627\u0631 \u0633\u0646\u062c\u06cc \u0641\u0631\u0645 \u0641\u0644\u0627\u0633\u06a9 \u0628\u0627 Flask-WTForms<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0628\u0627 \u0627\u06cc\u062c\u0627\u062f \u0645\u0633\u06cc\u0631\u06cc \u0628\u0631\u0627\u06cc \u0646\u0645\u0627\u06cc\u0634 \u0648 \u0634\u0631\u0648\u0639 \u06a9\u0646\u06cc\u0645 process \u0641\u0631\u0645 \u0645\u0627:<\/p>\n<pre><code class=\"hljs\">\n\n<span class=\"hljs-meta\">@app.route(<span class=\"hljs-params\"><span class=\"hljs-string\">'\/'<\/span>, methods=(<span class=\"hljs-params\"><span class=\"hljs-string\">'GET'<\/span>, <span class=\"hljs-string\">'POST'<\/span><\/span>)<\/span>)<\/span>\n<span class=\"hljs-function\"><span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title\">index<\/span>():<\/span>\n    form = GreetUserForm()\n    <span class=\"hljs-keyword\">if<\/span> form.validate_on_submit():\n        <span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-string\">f'''&lt;h1&gt; Welcome <span class=\"hljs-subst\">{form.username.data}<\/span> &lt;\/h1&gt;'''<\/span>\n    <span class=\"hljs-keyword\">return<\/span> render_template(<span class=\"hljs-string\">'index.html'<\/span>, form=form)\n<\/code><\/pre>\n<p>\u0645\u0633\u06cc\u0631 \u0645\u0627 \u062f\u0627\u0631\u062f <code>GET<\/code> \u0648 <code>POST<\/code> \u0645\u0648\u0627\u062f \u0648 \u0631\u0648\u0634 \u0647\u0627.  \u0627\u06cc\u0646 <code>GET<\/code> \u0645\u062a\u062f \u0641\u0631\u0645 \u0631\u0627 \u0646\u0645\u0627\u06cc\u0634 \u0645\u06cc \u062f\u0647\u062f\u060c \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 <code>POST<\/code> \u0645\u062a\u062f \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0641\u0631\u0645 \u0631\u0627 \u067e\u0631\u062f\u0627\u0632\u0634 \u0645\u06cc \u06a9\u0646\u062f \u0631\u0648\u06cc \u0627\u0631\u0633\u0627\u0644.  \u0645\u0627 \u0645\u0633\u06cc\u0631 URL \u0631\u0627 \u0628\u0647 <code>\/<\/code>\u060c \u06cc\u0627 root URL\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0635\u0641\u062d\u0647 \u0627\u0635\u0644\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u0648\u0628 \u0645\u0627 \u0638\u0627\u0647\u0631 \u0645\u06cc \u0634\u0648\u062f page.  \u0645\u0627 \u0631\u0646\u062f\u0631 \u0645\u06cc \u06a9\u0646\u06cc\u0645 <code>index.html<\/code> \u0642\u0627\u0644\u0628 \u0648 \u067e\u0627\u0633 \u06a9\u0646\u06cc\u062f <code>form<\/code> \u0634\u06cc \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u067e\u0627\u0631\u0627\u0645\u062a\u0631<\/p>\n<p>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0645\u06a9\u062b \u06a9\u0646\u06cc\u0645 \u0648 \u0628\u0647 \u0627\u06cc\u0646 \u062e\u0637 \u062a\u0648\u062c\u0647 \u06a9\u0646\u06cc\u0645: <code>if form.validate_on_submit():<\/code>.  \u0627\u06cc\u0646 \u0642\u0627\u0646\u0648\u0646 \u0645\u06cc \u06af\u0648\u06cc\u062f \u0627\u06af\u0631 \u0631\u0648\u0634 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0628\u0627\u0634\u062f <strong>\u067e\u0633\u062a<\/strong> \u0648 \u0627\u06af\u0631 \u0641\u06cc\u0644\u062f(\u0647\u0627\u06cc) \u0641\u0631\u0645 \u0645\u0639\u062a\u0628\u0631 \u0647\u0633\u062a\u0646\u062f\u060c \u0627\u062f\u0627\u0645\u0647 \u062f\u0647\u06cc\u062f.  \u0627\u06af\u0631 \u0648\u0631\u0648\u062f\u06cc \u0641\u0631\u0645 \u0645\u0627 \u0627\u0632 \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u0645\u0627 \u0639\u0628\u0648\u0631 \u06a9\u0646\u062f\u060c \u0631\u0648\u06cc \u0628\u0639\u062f\u06cc page \u06cc\u06a9 \u067e\u06cc\u0627\u0645 \u062e\u0648\u0634\u0627\u0645\u062f\u06af\u0648\u06cc\u06cc \u0633\u0627\u062f\u0647 \u0628\u0627 \u0646\u0627\u0645 \u06a9\u0627\u0631\u0628\u0631 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u0634\u0648\u062f.  \u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f \u06a9\u0647 \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0627\u0632 \u0646\u0627\u0645 \u0641\u06cc\u0644\u062f (<code>username<\/code>) \u0628\u0631\u0627\u06cc \u062f\u0633\u062a\u0631\u0633\u06cc \u0628\u0647 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0648\u0631\u0648\u062f\u06cc.<\/p>\n<p>\u0628\u0631\u0627\u06cc \u062f\u06cc\u062f\u0646 \u0641\u0631\u0645 \u0628\u0627\u06cc\u062f \u0641\u0631\u0645 \u0631\u0627 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u0645 <code>index.html<\/code> \u0642\u0627\u0644\u0628.  \u0641\u0627\u06cc\u0644 \u0631\u0627 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f \u0648 \u06a9\u062f \u0632\u06cc\u0631 \u0631\u0627 \u0628\u0647 \u0622\u0646 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u062f:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">form<\/span> <span class=\"hljs-attr\">method<\/span>=<span class=\"hljs-string\">\"POST\"<\/span> <span class=\"hljs-attr\">action<\/span>=<span class=\"hljs-string\">\"\"<\/span>&gt;<\/span>\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">div<\/span> <span class=\"hljs-attr\">class<\/span>=<span class=\"hljs-string\">\"form-row\"<\/span>&gt;<\/span>\n        <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">div<\/span> <span class=\"hljs-attr\">class<\/span>=<span class=\"hljs-string\">\"form-group col-md-6\"<\/span>&gt;<\/span>\n            {{ form.csrf_token() }}\n            <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">label<\/span> <span class=\"hljs-attr\">for<\/span>=<span class=\"hljs-string\">\"\"<\/span>&gt;<\/span> {{ form.username.label }}<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">label<\/span>&gt;<\/span>\n            {{ form.username }}\n        <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">div<\/span>&gt;<\/span>\n        <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">div<\/span> <span class=\"hljs-attr\">class<\/span>=<span class=\"hljs-string\">\"form-group\"<\/span>&gt;<\/span>\n            {{ form.submit(class=\"btn btn-primary\")}}\n        <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">div<\/span>&gt;<\/span>\n    <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">div<\/span>&gt;<\/span>\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">form<\/span>&gt;<\/span>\n<\/code><\/pre>\n<p>\u0645\u0627 \u0627\u0632 \u062e\u0648\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645 <code>form<\/code> \u0634\u06cc\u0621 \u0628\u0631\u0627\u06cc \u0627\u0631\u0633\u0627\u0644 \u0639\u0646\u0627\u0635\u0631 WTform \u0628\u0647 \u0622\u0646 <em>\u062c\u06cc\u0646\u062c\u06272<\/em> &#8211; \u062a\u062c\u0632\u06cc\u0647 \u06a9\u0646\u0646\u062f\u0647 \u0642\u0627\u0644\u0628 \u0628\u0631\u0627\u06cc Flask.<\/p>\n<p><strong>\u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f<\/strong>: <code>csrf_token<\/code> \u0628\u0647 \u0637\u0648\u0631 \u062e\u0648\u062f\u06a9\u0627\u0631 \u062a\u0648\u0633\u0637 WTForms \u062a\u0648\u0644\u06cc\u062f \u0645\u06cc \u0634\u0648\u062f \u0648 \u0647\u0631 \u0628\u0627\u0631 \u062a\u063a\u06cc\u06cc\u0631 \u0645\u06cc \u06a9\u0646\u062f page \u0627\u0631\u0627\u0626\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a.  \u0627\u06cc\u0646 \u0628\u0647 \u0645\u0627 \u06a9\u0645\u06a9 \u0645\u06cc \u06a9\u0646\u062f \u062a\u0627 \u0627\u0632 \u0633\u0627\u06cc\u062a \u062e\u0648\u062f \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u062d\u0645\u0644\u0627\u062a CSRF \u0645\u062d\u0627\u0641\u0638\u062a \u06a9\u0646\u06cc\u0645.  \u0628\u0647 \u0637\u0648\u0631 \u067e\u06cc\u0634 \u0641\u0631\u0636\u060c \u06cc\u06a9 \u0641\u06cc\u0644\u062f \u0645\u062e\u0641\u06cc \u0627\u0633\u062a.  \u0634\u0645\u0627 \u0647\u0645\u0686\u0646\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <code>{{ form.hidden_field() }}<\/code> \u0628\u0631\u0627\u06cc \u0631\u0646\u062f\u0631 \u06a9\u0631\u062f\u0646 \u062a\u0645\u0627\u0645 \u0641\u06cc\u0644\u062f\u0647\u0627\u06cc \u067e\u0646\u0647\u0627\u0646\u060c \u0627\u0632 \u062c\u0645\u0644\u0647 \u062a\u0648\u06a9\u0646 CSRF\u060c \u0627\u0645\u0627 \u062a\u0648\u0635\u06cc\u0647 \u0646\u0645\u06cc \u0634\u0648\u062f.<\/p>\n<p>\u062d\u0627\u0644\u0627 \u0628\u0631\u06cc\u0645 \u0633\u0631\u0627\u063a \u062e\u0648\u062f\u0645\u0648\u0646 terminal \u0628\u0631\u0627\u06cc \u0634\u0631\u0648\u0639 \u0628\u0631\u0646\u0627\u0645\u0647 Flask \u0645\u0627 \u0628\u0627 \u062a\u0627\u06cc\u067e \u06a9\u0631\u062f\u0646:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-meta\">$<\/span><span class=\"bash\"> FLASK_ENV=development flask run<\/span>\n<\/code><\/pre>\n<p>\u0628\u0631\u0627\u06cc \u0631\u0627\u062d\u062a\u06cc\u060c \u0645\u0627 \u062a\u0646\u0638\u06cc\u0645 \u0645\u06cc \u06a9\u0646\u06cc\u0645 <code>FLASK_ENV<\/code> \u0645\u062a\u063a\u06cc\u0631 \u0645\u062d\u06cc\u0637\u06cc \u0628\u0647 &#8220;\u062a\u0648\u0633\u0639\u0647&#8221; \u062f\u0631 \u062d\u06cc\u0646 \u062a\u0648\u0633\u0639\u0647.  \u0627\u06cc\u0646 \u0628\u0647 \u0628\u0631\u0646\u0627\u0645\u0647 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc\u200c\u062f\u0647\u062f \u0647\u0631 \u0628\u0627\u0631 \u06a9\u0647 \u0630\u062e\u06cc\u0631\u0647 \u0631\u0627 \u0641\u0634\u0627\u0631 \u0645\u06cc\u200c\u062f\u0647\u06cc\u0645\u060c \u0645\u062c\u062f\u062f\u0627\u064b \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u0634\u0648\u062f.  \u0628\u0631\u0627\u06cc \u0648\u06cc\u0646\u062f\u0648\u0632 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0645\u062c\u0628\u0648\u0631 \u0634\u0648\u06cc\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <code>set FLASK_ENV=development<\/code> \u0628\u0647 \u0634\u0645\u0627 terminal\/console \u0642\u0628\u0644 \u0627\u0632 \u0627\u062c\u0631\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u0641\u0644\u0627\u0633\u06a9<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0686\u06cc\u0632\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0627\u06af\u0631 \u0628\u0647 \u0622\u0646 \u0628\u0631\u0648\u06cc\u062f \u062e\u0648\u0627\u0647\u06cc\u0645 \u062f\u06cc\u062f localhost:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/flask-form-validation-with-wtforms-02.png\" alt=\"\u0627\u062c\u0631\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 Flask \u0628\u0627 \u0641\u0631\u0645\" title=\"\"><\/p>\n<p>\u062f\u0631 \u0642\u0633\u0645\u062a \u0648\u0631\u0648\u062f\u06cc \u06cc\u06a9 \u0646\u0627\u0645 \u062a\u0627\u06cc\u067e \u06a9\u0646\u06cc\u062f \u0648 \u0641\u0631\u0645 \u0631\u0627 \u0627\u0631\u0633\u0627\u0644 \u06a9\u0646\u06cc\u062f.  \u067e\u06cc\u0627\u0645 \u062a\u0628\u0631\u06cc\u06a9\u06cc \u0631\u0627 \u06a9\u0647 \u0645\u0627 \u062f\u0631 \u0645\u0633\u06cc\u0631 \u062e\u0648\u062f \u062a\u0639\u0631\u06cc\u0641 \u06a9\u0631\u062f\u06cc\u0645 \u0631\u0627 \u0645\u0634\u0627\u0647\u062f\u0647 \u062e\u0648\u0627\u0647\u06cc\u062f \u06a9\u0631\u062f:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/flask-form-validation-with-wtforms-03.png\" alt=\"\u0627\u0631\u0633\u0627\u0644 \u0641\u0631\u0645 \u0628\u0627 \u0646\u0627\u0645 \u06a9\u0627\u0631\u0628\u0631\u06cc \u0628\u0627 \u0645\u0648\u0641\u0642\u06cc\u062a \u0627\u0646\u062c\u0627\u0645 \u0634\u062f\" title=\"\"><\/p>\n<p>\u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u0627\u0646\u062a\u0638\u0627\u0631 \u0645\u06cc \u0631\u0648\u062f \u06a9\u0627\u0631 \u0645\u06cc \u06a9\u0646\u062f.  \u0627\u0645\u0627 \u0627\u06af\u0631 \u0686\u06cc\u0632\u06cc \u062f\u0631 \u0641\u06cc\u0644\u062f \u0648\u0631\u0648\u062f\u06cc \u062a\u0627\u06cc\u067e \u0646\u06a9\u0631\u062f\u06cc\u0645 \u0686\u0647\u061f  \u0647\u0645\u0686\u0646\u0627\u0646 \u0641\u0631\u0645 \u0631\u0627 \u062a\u0623\u06cc\u06cc\u062f \u0645\u06cc \u06a9\u0646\u062f:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/flask-form-validation-with-wtforms-04.png\" alt=\"\u0627\u0631\u0633\u0627\u0644 \u0641\u0631\u0645 \u0628\u062f\u0648\u0646 \u0646\u0627\u0645 \u0628\u0627 \u0645\u0648\u0641\u0642\u06cc\u062a \u0627\u0646\u062c\u0627\u0645 \u0634\u062f\" title=\"\"><\/p>\n<p>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0627\u0632 \u0627\u06cc\u0646 \u0627\u062a\u0641\u0627\u0642 \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u06a9\u0646\u06cc\u0645 \u0648 \u0641\u0642\u0637 \u0628\u0647 \u06a9\u0627\u0631\u0628\u0631\u0627\u0646\u06cc \u06a9\u0647 \u0646\u0627\u0645 \u062e\u0648\u062f \u0631\u0627 \u062a\u0627\u06cc\u067e \u06a9\u0631\u062f\u0647\u200c\u0627\u0646\u062f \u0627\u062c\u0627\u0632\u0647 \u062f\u0647\u06cc\u0645 \u0645\u0648\u0627\u0631\u062f \u0628\u0639\u062f\u06cc \u0631\u0627 \u0628\u0628\u06cc\u0646\u0646\u062f page.  \u0628\u0631\u0627\u06cc \u0627\u0646\u062c\u0627\u0645 \u0627\u06cc\u0646 \u06a9\u0627\u0631\u060c \u0645\u0627 \u0628\u0627\u06cc\u062f \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u062d\u0627\u0635\u0644 \u06a9\u0646\u06cc\u0645 \u06a9\u0647 \u0645\u0627 <code>username<\/code> \u0641\u06cc\u0644\u062f \u062f\u0627\u062f\u0647 \u0648\u0631\u0648\u062f\u06cc \u062f\u0627\u0631\u062f.<\/p>\n<p>\u062e\u0648\u0628 import \u06cc\u06a9\u06cc \u0627\u0632 \u0631\u0648\u0634 \u0647\u0627\u06cc \u062f\u0627\u062e\u0644\u06cc \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc WTForms: <code>DataRequired()<\/code> \u0627\u0632 \u062c\u0627\u0646\u0628 <code>wtforms.validators<\/code> \u0648 \u0622\u0646 \u0631\u0627 \u0628\u0647 \u0645\u0627 \u0645\u0646\u062a\u0642\u0644 \u06a9\u0646\u06cc\u062f <code>username<\/code> \u0631\u0634\u062a\u0647.<\/p>\n<pre><code class=\"hljs\">\n<span class=\"hljs-keyword\">from<\/span> wtforms.validators <span class=\"hljs-keyword\">import<\/span> ValidationError, DataRequired\n\n<span class=\"hljs-class\"><span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title\">GreetUserForm<\/span>(<span class=\"hljs-params\">FlaskForm<\/span>):<\/span>\n    username = StringField(label=(<span class=\"hljs-string\">'Enter Your Name:'<\/span>),\n                           validators=(DataRequired()))\n    submit = SubmitField(label=(<span class=\"hljs-string\">'Submit'<\/span>))\n\n\n<\/code><\/pre>\n<p>\u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f \u06a9\u0647 \u0645\u0627 \u062f\u0631 \u062d\u0627\u0644 \u0639\u0628\u0648\u0631 \u0627\u0632 <code>validators<\/code> \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u0644\u06cc\u0633\u062a  \u0627\u06cc\u0646 \u0628\u0647 \u0645\u0627 \u0645\u06cc \u06af\u0648\u06cc\u062f \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0628\u0631\u0627\u06cc \u0647\u0631 \u0641\u06cc\u0644\u062f \u0686\u0646\u062f \u0627\u0639\u062a\u0628\u0627\u0631 \u0633\u0646\u062c\u06cc \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u0645.<\/p>\n<p>\u062d\u0627\u0644\u0627 \u06a9\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645 <code>DataRequired()<\/code>\u060c <code>username<\/code> \u0627\u06af\u0631 \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u0648\u0631\u0648\u062f\u06cc \u0648\u062c\u0648\u062f \u0646\u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f\u060c \u0641\u06cc\u0644\u062f \u062a\u0623\u06cc\u06cc\u062f \u0646\u0645\u06cc\u200c\u0634\u0648\u062f:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/flask-form-validation-with-wtforms-05.png\" alt=\"\u0648\u0642\u062a\u06cc \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u0641\u0631\u0645 \u062e\u0627\u0644\u06cc \u0627\u0633\u062a\u060c \u0631\u0627\u0647\u0646\u0645\u0627\u06cc \u0627\u0628\u0632\u0627\u0631 \u0628\u0647 \u06a9\u0627\u0631\u0628\u0631 \u0646\u0645\u0627\u06cc\u0634 \u062f\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f\" title=\"\"><\/p>\n<p>\u062f\u0631 \u0648\u0627\u0642\u0639\u060c \u0627\u06af\u0631 \u0645\u0627 \u0631\u0648\u06cc \u0639\u0646\u0635\u0631 \u0641\u0631\u0645 \u06a9\u0644\u06cc\u06a9 \u0631\u0627\u0633\u062a \u06a9\u0631\u062f\u0647 \u0648 \u0622\u0646 \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u0645\u060c \u062e\u0648\u0627\u0647\u06cc\u0645 \u062f\u06cc\u062f \u06a9\u0647 WTForms \u0628\u0647 \u0637\u0648\u0631 \u062e\u0648\u062f\u06a9\u0627\u0631 <code>required<\/code> \u0648\u06cc\u0698\u06af\u06cc \u0628\u0647 \u0641\u06cc\u0644\u062f \u0648\u0631\u0648\u062f\u06cc:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/flask-form-validation-with-wtforms-06.png\" alt=\"\u0628\u0631\u0631\u0633\u06cc HTML \u0641\u0631\u0645 \u0628\u0631\u0627\u06cc \u062f\u06cc\u062f\u0646 \u0648\u06cc\u0698\u06af\u06cc &quot;\u0627\u0644\u0632\u0627\u0645\u06cc&quot; \u0641\u06cc\u0644\u062f \u0648\u0631\u0648\u062f\u06cc\" title=\"\"><\/p>\n<p>\u0628\u0627 \u0627\u0646\u062c\u0627\u0645 \u0627\u06cc\u0646 \u06a9\u0627\u0631\u060c WTForms \u06cc\u06a9 \u0627\u0639\u062a\u0628\u0627\u0631 \u0633\u0646\u062c\u06cc \u0627\u0648\u0644\u06cc\u0647 front-end \u0631\u0627 \u0628\u0647 \u0641\u06cc\u0644\u062f \u0641\u0631\u0645 \u0645\u0627 \u0627\u0636\u0627\u0641\u0647 \u0645\u06cc \u06a9\u0646\u062f.  \u0634\u0645\u0627 \u0646\u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0622\u0646 \u0641\u0631\u0645 \u0631\u0627 \u0628\u062f\u0648\u0646 \u0622\u0646 \u0627\u0631\u0633\u0627\u0644 \u06a9\u0646\u06cc\u062f <code>username<\/code> \u062d\u062a\u06cc \u0627\u06af\u0631 \u0633\u0639\u06cc \u06a9\u0646\u06cc\u062f \u0641\u0631\u0645 \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0627\u0628\u0632\u0627\u0631\u0647\u0627\u06cc\u06cc \u0645\u0627\u0646\u0646\u062f cURL \u06cc\u0627 Postman \u067e\u0633\u062a \u06a9\u0646\u06cc\u062f.<\/p>\n<p>\u062d\u0627\u0644\u060c \u0641\u0631\u0636 \u06a9\u0646\u06cc\u062f \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc\u0645 \u06cc\u06a9 \u0642\u0627\u0646\u0648\u0646 \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u062c\u062f\u06cc\u062f \u062a\u0646\u0638\u06cc\u0645 \u06a9\u0646\u06cc\u0645 \u06a9\u0647 \u0641\u0642\u0637 \u0628\u0647 \u0646\u0627\u0645\u200c\u0647\u0627\u06cc\u06cc \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc\u200c\u062f\u0647\u062f \u06a9\u0647 \u062d\u062f\u0627\u0642\u0644 5 \u06a9\u0627\u0631\u0627\u06a9\u062a\u0631 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u0646\u062f.  \u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645 <code>Length()<\/code> \u062a\u0627\u06cc\u06cc\u062f \u06a9\u0646\u0646\u062f\u0647 \u0628\u0627 <code>min<\/code> \u067e\u0627\u0631\u0627\u0645\u062a\u0631:<\/p>\n<pre><code class=\"hljs\">\n<span class=\"hljs-keyword\">from<\/span> wtforms.validators <span class=\"hljs-keyword\">import<\/span> ValidationError, DataRequired, Length\n\n<span class=\"hljs-class\"><span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title\">GreetUserForm<\/span>(<span class=\"hljs-params\">FlaskForm<\/span>):<\/span>\n    username = StringField(label=(<span class=\"hljs-string\">'Enter Your Name:'<\/span>), \n        validators=(DataRequired(), Length(<span class=\"hljs-built_in\">min<\/span>=<span class=\"hljs-number\">5<\/span>)))\n    submit = SubmitField(label=(<span class=\"hljs-string\">'Submit'<\/span>))\n\n\n<\/code><\/pre>\n<p>\u0627\u06af\u0631 \u0628\u062e\u0648\u0627\u0647\u06cc\u0645 \u0641\u0631\u0645\u06cc \u0631\u0627 \u0628\u0627 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0648\u0631\u0648\u062f\u06cc \u06a9\u0645\u062a\u0631 \u0627\u0632 5 \u06a9\u0627\u0631\u0627\u06a9\u062a\u0631 \u0627\u0631\u0633\u0627\u0644 \u06a9\u0646\u06cc\u0645\u060c \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u0628\u0631\u0622\u0648\u0631\u062f\u0647 \u0646\u062e\u0648\u0627\u0647\u062f \u0634\u062f \u0648 \u0627\u0631\u0633\u0627\u0644 \u0646\u0627\u0645\u0648\u0641\u0642 \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/flask-form-validation-with-wtforms-07.png\" alt=\"\u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc wtforms \u0646\u0627\u0645\u0648\u0641\u0642 \u0627\u0633\u062a\" title=\"\"><\/p>\n<p>\u06a9\u0644\u06cc\u06a9 \u06a9\u0631\u062f\u0646 \u0631\u0648\u06cc \u062f\u06a9\u0645\u0647 \u0627\u0631\u0633\u0627\u0644 \u0647\u06cc\u0686 \u06a9\u0627\u0631\u06cc \u0628\u0631\u0627\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0646\u0627\u0645\u0639\u062a\u0628\u0631 \u0627\u0646\u062c\u0627\u0645 \u0646\u0645\u06cc \u062f\u0647\u062f\u060c \u0647\u0645\u0686\u0646\u06cc\u0646 \u0647\u06cc\u0686 \u062e\u0637\u0627\u06cc\u06cc \u0631\u0627 \u0628\u0647 \u06a9\u0627\u0631\u0628\u0631 \u0646\u0645\u0627\u06cc\u0634 \u0646\u0645\u06cc \u062f\u0647\u062f.  \u0645\u0627 \u0628\u0627\u06cc\u062f \u067e\u06cc\u0627\u0645 \u0647\u0627\u06cc \u062e\u0637\u0627 \u0631\u0627 \u0627\u0631\u0627\u0626\u0647 \u06a9\u0646\u06cc\u0645 \u062a\u0627 \u06a9\u0627\u0631\u0628\u0631 \u0628\u0641\u0647\u0645\u062f \u0686\u0647 \u0627\u062a\u0641\u0627\u0642\u06cc \u0645\u06cc \u0627\u0641\u062a\u062f \u0631\u0648\u06cc \u0648 \u0686\u06af\u0648\u0646\u0647 \u0628\u0627\u06cc\u062f \u0627\u06cc\u0646 \u0631\u0627 \u062a\u0639\u0645\u06cc\u0631 \u06a9\u0646\u06cc\u0645.<\/p>\n<p>\u062f\u0631 \u0645\u0627 <code>index.html<\/code> \u0627\u0644\u06af\u0648\u060c \u062f\u0631\u0633\u062a \u062f\u0631 \u0632\u06cc\u0631 <code>{{ form.username }}<\/code>\u060c \u062d\u0644\u0642\u0647 for-loop Jinja2 \u0632\u06cc\u0631 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0646\u0645\u0627\u06cc\u0634 \u062e\u0637\u0627\u0647\u0627 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u062f:<\/p>\n<pre><code class=\"hljs\"> {% for field, errors in form.errors.items() %}\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">small<\/span> <span class=\"hljs-attr\">class<\/span>=<span class=\"hljs-string\">\"form-text text-muted \"<\/span>&gt;<\/span>\n        {{ ', '.join(errors) }}\n    <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">small<\/span>&gt;<\/span>\n{% endfor %}\n<\/code><\/pre>\n<p>\u0641\u0631\u0645 \u0645\u0627 \u0627\u06a9\u0646\u0648\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u062e\u0637\u0627\u0647\u0627\u06cc \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u062a\u0645\u06cc\u0632 \u0631\u0627 \u0627\u0631\u0627\u0626\u0647 \u062f\u0647\u062f:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/flask-form-validation-with-wtforms-08.png\" alt=\"\u062e\u0637\u0627\u0647\u0627\u06cc \u0631\u0646\u062f\u0631 \u0641\u0631\u0645 \u0628\u0631\u0627\u06cc \u06cc\u06a9 \u0646\u0627\u0645 \u06a9\u0627\u0631\u0628\u0631\u06cc \u06a9\u0648\u062a\u0627\u0647\" title=\"\"><\/p>\n<p>\u0628\u0647 \u0647\u0631 \u062f\u0644\u06cc\u0644\u06cc\u060c \u0627\u06af\u0631 \u0628\u062e\u0648\u0627\u0647\u06cc\u0645 \u062d\u062f\u0627\u06a9\u062b\u0631 \u0637\u0648\u0644 \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u0641\u06cc\u0644\u062f \u062e\u0648\u062f \u0631\u0627 \u0645\u062d\u062f\u0648\u062f \u06a9\u0646\u06cc\u0645\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u0645 \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u0631\u0627 \u0628\u0627 \u0639\u0628\u0648\u0631 \u062f\u0627\u062f\u0646 \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u06cc\u0645 <code>max<\/code> \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u0628\u0647 <code>Length()<\/code> \u062a\u0627\u06cc\u06cc\u062f \u06a9\u0646\u0646\u062f\u0647  \u0647\u0645\u0686\u0646\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646 \u067e\u06cc\u0627\u0645 \u062e\u0637\u0627 \u0631\u0627 \u0628\u0627 \u0627\u0631\u0633\u0627\u0644 \u06cc\u06a9 \u067e\u06cc\u0627\u0645 \u0627\u062e\u062a\u06cc\u0627\u0631\u06cc \u0633\u0641\u0627\u0631\u0634\u06cc \u06a9\u0631\u062f <code>message<\/code> \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u0628\u0627 \u06cc\u06a9 \u0631\u0634\u062a\u0647 \u062e\u0637\u0627\u06cc \u0633\u0641\u0627\u0631\u0634\u06cc.<\/p>\n<p>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0628\u0647 \u0631\u0648\u0632 \u0631\u0633\u0627\u0646\u06cc \u06a9\u0646\u06cc\u0645 <code>username<\/code> \u0641\u06cc\u0644\u062f \u0628\u0631 \u0627\u06cc\u0646 \u0627\u0633\u0627\u0633:<\/p>\n<pre><code class=\"hljs\">\n\n<span class=\"hljs-class\"><span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title\">GreetUserForm<\/span>(<span class=\"hljs-params\">FlaskForm<\/span>):<\/span>\n    username = StringField(label=(<span class=\"hljs-string\">'Enter Your Name:'<\/span>),\n        validators=(DataRequired(), \n        Length(<span class=\"hljs-built_in\">min<\/span>=<span class=\"hljs-number\">5<\/span>, <span class=\"hljs-built_in\">max<\/span>=<span class=\"hljs-number\">64<\/span>, message=<span class=\"hljs-string\">'Name length must be between %(min)d and %(max)dcharacters'<\/span>) ))\n    submit = SubmitField(label=(<span class=\"hljs-string\">'Submit'<\/span>))\n\n\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/flask-form-validation-with-wtforms-09.png\" alt=\"\u062e\u0637\u0627\u0647\u0627\u06cc \u0631\u0646\u062f\u0631 \u0641\u0631\u0645 \u0628\u0631\u0627\u06cc \u06cc\u06a9 \u0646\u0627\u0645 \u06a9\u0627\u0631\u0628\u0631\u06cc \u06a9\u0648\u062a\u0627\u0647 \u0628\u0627 \u06cc\u06a9 \u067e\u06cc\u0627\u0645 \u0633\u0641\u0627\u0631\u0634\u06cc\" title=\"\"><\/p>\n<h2 id=\"morewtformsfieldsandvalidatorswiththeuserregistrationform\"><span class=\"ez-toc-section\" id=\"%d8%a8%db%8c%d8%b4%d8%aa%d8%b1_%d9%81%db%8c%d9%84%d8%af%d9%87%d8%a7%db%8c_wtforms_%d9%88_%d8%a7%d8%b9%d8%aa%d8%a8%d8%a7%d8%b1_%d8%b3%d9%86%d8%ac%db%8c_%d8%a8%d8%a7_%d9%81%d8%b1%d9%85_%d8%ab%d8%a8%d8%aa_%d9%86%d8%a7%d9%85_%da%a9%d8%a7%d8%b1%d8%a8%d8%b1\"><\/span>\u0628\u06cc\u0634\u062a\u0631 \u0641\u06cc\u0644\u062f\u0647\u0627\u06cc WTForms \u0648 \u0627\u0639\u062a\u0628\u0627\u0631 \u0633\u0646\u062c\u06cc \u0628\u0627 \u0641\u0631\u0645 \u062b\u0628\u062a \u0646\u0627\u0645 \u06a9\u0627\u0631\u0628\u0631<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0641\u0631\u0645 \u0641\u0639\u0644\u06cc \u0645\u0627 \u06cc\u06a9 \u0641\u06cc\u0644\u062f \u0648\u0627\u062d\u062f \u062f\u0627\u0631\u062f \u06a9\u0647 \u0628\u0647 \u0646\u0648\u0639\u06cc \u06a9\u0633\u0644 \u06a9\u0646\u0646\u062f\u0647 \u0627\u0633\u062a.  WTForms \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u06af\u0633\u062a\u0631\u062f\u0647 \u0627\u0639\u062a\u0628\u0627\u0631 \u0633\u0646\u062c\u06cc \u0641\u0631\u0645 \u0648 \u0627\u0646\u0648\u0627\u0639 \u0641\u06cc\u0644\u062f\u0647\u0627\u06cc \u0641\u0631\u0645 \u0631\u0627 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u062f\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0627\u0632 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645 \u0648 \u0686\u06cc\u0632\u06cc \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0639\u0645\u0644\u06cc \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u0645.<\/p>\n<p>\u0645\u0627 \u06cc\u06a9 \u0641\u0631\u0645 \u062b\u0628\u062a \u0646\u0627\u0645 \u06a9\u0627\u0631\u0628\u0631 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u06cc\u0645 \u0648 \u0627\u0632 \u0627\u0639\u062a\u0628\u0627\u0631 \u0633\u0646\u062c\u06cc WTForms \u062f\u0627\u062e\u0644\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645.<\/p>\n<p>\u0645\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062e\u0648\u0627\u0647\u06cc\u0645 \u06a9\u0631\u062f <code>DataRequired()<\/code> \u0627\u0639\u062a\u0628\u0627\u0631\u062f\u0647\u0646\u062f\u0647 \u0641\u06cc\u0644\u062f\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc\u0645 \u0645\u0637\u0645\u0626\u0646 \u0634\u0648\u06cc\u0645 \u06a9\u0627\u0631\u0628\u0631 \u0622\u0646\u0647\u0627 \u0631\u0627 \u067e\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u062d\u062f\u0627\u0642\u0644 \u0648 \u062d\u062f\u0627\u06a9\u062b\u0631 \u0637\u0648\u0644 \u0641\u06cc\u0644\u062f\u0647\u0627 \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645. <code>Length()<\/code> \u0627\u0639\u062a\u0628\u0627\u0631 \u0633\u0646\u062c\u06cc\u060c \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u0627\u06cc\u0645\u06cc\u0644 \u0647\u0627 \u0628\u0627 <code>Email()<\/code> \u0627\u0639\u062a\u0628\u0627\u0631 \u0633\u0646\u062c\u06cc \u0648 \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u0622\u06cc\u0627 \u062f\u0648 \u0641\u06cc\u0644\u062f \u062f\u0627\u0631\u0627\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u06cc\u06a9\u0633\u0627\u0646\u06cc \u0647\u0633\u062a\u0646\u062f <code>EqualTo()<\/code> \u062a\u0627\u06cc\u06cc\u062f \u06a9\u0646\u0646\u062f\u0647<\/p>\n<p>\u0631\u0627 \u062d\u0630\u0641 \u06a9\u0646\u06cc\u062f <code>GreetUserForm<\/code> \u06a9\u0644\u0627\u0633 \u0648 \u0634\u0631\u0648\u0639 \u06a9\u062f \u062e\u0648\u062f \u0631\u0627 \u0628\u0627 \u0641\u0631\u0645 \u062c\u062f\u06cc\u062f \u0645\u0627 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u06a9\u0646\u06cc\u062f:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">from<\/span> flask <span class=\"hljs-keyword\">import<\/span> Flask, render_template\n<span class=\"hljs-keyword\">from<\/span> flask_wtf <span class=\"hljs-keyword\">import<\/span> FlaskForm\n<span class=\"hljs-keyword\">from<\/span> wtforms <span class=\"hljs-keyword\">import<\/span> StringField, PasswordField, BooleanField, \\\n    SubmitField\n<span class=\"hljs-keyword\">from<\/span> wtforms.validators <span class=\"hljs-keyword\">import<\/span> ValidationError, DataRequired, \\\n    Email, EqualTo, Length\n\n<span class=\"hljs-class\"><span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title\">CreateUserForm<\/span>(<span class=\"hljs-params\">FlaskForm<\/span>):<\/span>\n    username = StringField(label=(<span class=\"hljs-string\">'Username'<\/span>), \n        validators=(DataRequired(), \n        Length(<span class=\"hljs-built_in\">max<\/span>=<span class=\"hljs-number\">64<\/span>)))\n    email = StringField(label=(<span class=\"hljs-string\">'Email'<\/span>), \n        validators=(DataRequired(), \n        Email(), \n        Length(<span class=\"hljs-built_in\">max<\/span>=<span class=\"hljs-number\">120<\/span>)))\n    password = PasswordField(label=(<span class=\"hljs-string\">'Password'<\/span>), \n        validators=(DataRequired(), \n        Length(<span class=\"hljs-built_in\">min<\/span>=<span class=\"hljs-number\">8<\/span>, message=<span class=\"hljs-string\">'Password should be at least %(min)d characters long'<\/span>)))\n    confirm_password = PasswordField(\n        label=(<span class=\"hljs-string\">'Confirm Password'<\/span>), \n        validators=(DataRequired(message=<span class=\"hljs-string\">'*Required'<\/span>),\n        EqualTo(<span class=\"hljs-string\">'password'<\/span>, message=<span class=\"hljs-string\">'Both password fields must be equal!'<\/span>)))\n\n    receive_emails = BooleanField(label=(<span class=\"hljs-string\">'Receive marketing emails.'<\/span>))\n\n    submit = SubmitField(label=(<span class=\"hljs-string\">'Submit'<\/span>))\n\n\n<\/code><\/pre>\n<p>\u0645\u0627 \u0686\u0647\u0627\u0631 \u0632\u0645\u06cc\u0646\u0647 \u0645\u062e\u062a\u0644\u0641 \u062f\u0631 \u0641\u0631\u0645 \u0647\u0627\u06cc \u062e\u0648\u062f \u062f\u0627\u0631\u06cc\u0645.  \u0622\u062e\u0631\u06cc\u0646 \u0645\u0648\u0631\u062f \u06cc\u06a9 \u062f\u06a9\u0645\u0647 \u0627\u0631\u0633\u0627\u0644 \u0645\u0639\u0645\u0648\u0644\u06cc \u0627\u0633\u062a.  \u0645\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 <code>StringField<\/code> \u0628\u0631\u0627\u06cc \u062f\u0631\u06cc\u0627\u0641\u062a \u0648\u0631\u0648\u062f\u06cc \u0631\u0634\u062a\u0647 \u0627\u0632 \u06a9\u0627\u0631\u0628\u0631\u0627\u0646\u060c \u0645\u0627\u0646\u0646\u062f <code>username<\/code> \u0648 <code>email<\/code>.  \u0627\u0632 \u0633\u0648\u06cc \u062f\u06cc\u06af\u0631\u060c <code>PasswordField<\/code> \u0645\u062a\u0646 \u0631\u0645\u0632 \u0639\u0628\u0648\u0631 \u0631\u0627 \u067e\u0646\u0647\u0627\u0646 \u0645\u06cc \u06a9\u0646\u062f \u0631\u0648\u06cc \u0642\u0633\u0645\u062a \u062c\u0644\u0648\u06cc\u06cc <code>BooleanField<\/code> \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u0686\u06a9 \u0628\u0627\u06a9\u0633 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u0634\u0648\u062f \u0631\u0648\u06cc \u062c\u0644\u0648\u06cc\u06cc \u0686\u0648\u0646 \u0641\u0642\u0637 \u062d\u0627\u0648\u06cc \u0645\u0642\u0627\u062f\u06cc\u0631 True (\u0628\u0631\u0631\u0633\u06cc \u0634\u062f\u0647) \u06cc\u0627 False (\u0628\u0631\u0631\u0633\u06cc \u0646\u0634\u062f\u0647) \u0627\u0633\u062a.<\/p>\n<p>\u0628\u0627\u06cc\u062f \u0627\u0635\u0644\u0627\u062d \u06a9\u0646\u06cc\u0645 <code>index.html<\/code> \u0627\u0644\u06af\u0648\u06cc\u06cc \u0628\u0631\u0627\u06cc \u0627\u0631\u0627\u0626\u0647 \u0641\u06cc\u0644\u062f\u0647\u0627\u06cc \u0641\u0631\u0645 \u062c\u062f\u06cc\u062f \u0645\u0627:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">div<\/span> <span class=\"hljs-attr\">class<\/span>=<span class=\"hljs-string\">\"container\"<\/span>&gt;<\/span>\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">h2<\/span>&gt;<\/span>Registration Form<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">h2<\/span>&gt;<\/span>\n    {% for field, errors in form.errors.items() %}\n    {{ ', '.join(errors) }}\n    {% endfor %}\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">form<\/span> <span class=\"hljs-attr\">class<\/span>=<span class=\"hljs-string\">\"form-horizontal\"<\/span> <span class=\"hljs-attr\">method<\/span>=<span class=\"hljs-string\">\"POST\"<\/span> <span class=\"hljs-attr\">action<\/span>=<span class=\"hljs-string\">\"\"<\/span>&gt;<\/span>\n        {{ form.csrf_token() }}\n        <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">div<\/span> <span class=\"hljs-attr\">class<\/span>=<span class=\"hljs-string\">\"form-group\"<\/span>&gt;<\/span>\n            {{ form.username.label }}\n            {{ form.username(class=\"form-control\") }}\n        <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">div<\/span>&gt;<\/span>\n        <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">div<\/span> <span class=\"hljs-attr\">class<\/span>=<span class=\"hljs-string\">\"form-group\"<\/span>&gt;<\/span>\n            {{ form.email.label }}\n            {{ form.email(class=\"form-control\") }}\n        <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">div<\/span>&gt;<\/span>\n        <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">div<\/span> <span class=\"hljs-attr\">class<\/span>=<span class=\"hljs-string\">\"form-group\"<\/span>&gt;<\/span>\n            {{ form.password.label }}\n            {{ form.password(class=\"form-control\") }}\n        <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">div<\/span>&gt;<\/span>\n        <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">div<\/span> <span class=\"hljs-attr\">class<\/span>=<span class=\"hljs-string\">\"form-group\"<\/span>&gt;<\/span>\n            {{ form.confirm_password.label }}\n            {{ form.confirm_password(class=\"form-control\") }}\n        <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">div<\/span>&gt;<\/span>\n        <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">div<\/span> <span class=\"hljs-attr\">class<\/span>=<span class=\"hljs-string\">\"form-group\"<\/span>&gt;<\/span>\n            {{ form.receive_emails.label }}\n        <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">div<\/span>&gt;<\/span>\n        <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">div<\/span> <span class=\"hljs-attr\">class<\/span>=<span class=\"hljs-string\">\"form-group\"<\/span>&gt;<\/span>\n            {{ form.submit(class=\"btn btn-primary\")}}\n        <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">div<\/span>&gt;<\/span>\n    <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">form<\/span>&gt;<\/span>\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">div<\/span>&gt;<\/span>\n<\/code><\/pre>\n<p>\u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u0645\u06cc \u0628\u06cc\u0646\u06cc\u062f\u060c \u0641\u06cc\u0644\u062f\u0647\u0627\u06cc \u0641\u0631\u0645 \u0645\u0627 \u0628\u0647 \u062f\u0631\u0633\u062a\u06cc \u0627\u0631\u0627\u0626\u0647 \u0634\u062f\u0647 \u0627\u0646\u062f:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/flask-form-validation-with-wtforms-10.png\" alt=\"\u0641\u0631\u0645 \u062b\u0628\u062a \u0646\u0627\u0645 \u06a9\u0627\u0631\u0628\u0631 \u0628\u0647 \u062f\u0631\u0633\u062a\u06cc \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u0634\u0648\u062f\" title=\"\"><\/p>\n<p><strong>\u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f<\/strong>: \u0627\u06af\u0631 \u0642\u0631\u0627\u0631 \u0627\u0633\u062a \u0648\u0628 \u0633\u0627\u06cc\u062a \u0634\u0645\u0627 \u0686\u0646\u062f\u06cc\u0646 \u0641\u0631\u0645 \u0645\u062e\u062a\u0644\u0641 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f\u060c \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u062e\u0648\u0627\u0647\u06cc\u062f \u0628\u0647 \u062c\u0627\u06cc \u062a\u0627\u06cc\u067e \u0647\u0631 \u0641\u06cc\u0644\u062f \u0641\u0631\u0645 \u06cc\u06a9\u06cc \u06cc\u06a9\u06cc \u0627\u0632 \u0645\u0627\u06a9\u0631\u0648\u0647\u0627\u06cc Jinja2 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f.  \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u0627\u06a9\u0631\u0648\u0647\u0627 \u0627\u0632 \u062d\u0648\u0635\u0644\u0647 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u062e\u0627\u0631\u062c \u0627\u0633\u062a\u060c \u0627\u0645\u0627 \u0641\u0631\u0622\u06cc\u0646\u062f \u0627\u06cc\u062c\u0627\u062f \u0641\u0631\u0645 \u0631\u0627 \u062a\u0627 \u062d\u062f \u0632\u06cc\u0627\u062f\u06cc \u0633\u0631\u0639\u062a \u0645\u06cc \u0628\u062e\u0634\u062f.<\/p>\n<h2 id=\"creatingyourowncustomvalidators\"><span class=\"ez-toc-section\" id=\"%d8%a7%db%8c%d8%ac%d8%a7%d8%af_%d8%a7%d8%b9%d8%aa%d8%a8%d8%a7%d8%b1%d8%b3%d9%86%d8%ac%db%8c_%d8%b3%d9%81%d8%a7%d8%b1%d8%b4%db%8c_%d8%ae%d9%88%d8%af\"><\/span>\u0627\u06cc\u062c\u0627\u062f \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u0633\u0641\u0627\u0631\u0634\u06cc \u062e\u0648\u062f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062f\u0631 \u0627\u06a9\u062b\u0631 \u0648\u0628 \u0633\u0627\u06cc\u062a \u0647\u0627\u060c \u06a9\u0627\u0631\u0627\u06a9\u062a\u0631\u0647\u0627\u06cc \u062e\u0627\u0635\u06cc \u062f\u0631 \u0646\u0627\u0645 \u06a9\u0627\u0631\u0628\u0631\u06cc \u0645\u062c\u0627\u0632 \u0646\u06cc\u0633\u062a\u0646\u062f.  \u0627\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0631\u0627\u06cc \u0627\u0647\u062f\u0627\u0641 \u0627\u0645\u0646\u06cc\u062a\u06cc \u0628\u0627\u0634\u062f\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0631\u0627\u06cc \u0644\u0648\u0627\u0632\u0645 \u0622\u0631\u0627\u06cc\u0634\u06cc \u0628\u0627\u0634\u062f.  WTForms \u0628\u0647 \u0637\u0648\u0631 \u067e\u06cc\u0634 \u0641\u0631\u0636 \u0686\u0646\u06cc\u0646 \u0645\u0646\u0637\u0642\u06cc \u0631\u0627 \u0646\u062f\u0627\u0631\u062f\u060c \u0627\u0645\u0627 \u0645\u0627 \u062e\u0648\u062f\u0645\u0627\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0622\u0646 \u0631\u0627 \u062a\u0639\u0631\u06cc\u0641 \u06a9\u0646\u06cc\u0645.<\/p>\n<p>WTForms \u0628\u0647 \u0645\u0627 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc \u062f\u0647\u062f \u062a\u0627 \u0628\u0627 \u0627\u0641\u0632\u0648\u062f\u0646 \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc\u060c \u0627\u0639\u062a\u0628\u0627\u0631 \u0633\u0646\u062c\u06cc \u0633\u0641\u0627\u0631\u0634\u06cc \u0631\u0627 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u0645 <strong>\u0631\u0648\u0634<\/strong> \u0628\u0647 \u0645\u0627 <code>UserRegistrationForm<\/code> \u06a9\u0644\u0627\u0633  \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0627\u0639\u062a\u0628\u0627\u0631 \u0633\u0641\u0627\u0631\u0634\u06cc \u0631\u0627 \u0628\u0627 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0631\u062f\u0646 \u0622\u0646 \u062f\u0631 \u0641\u0631\u0645 \u062e\u0648\u062f \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u06a9\u0646\u06cc\u0645 <code>validate_username()<\/code> \u0631\u0648\u0634 \u062f\u0631\u0633\u062a \u0632\u06cc\u0631 <code>submit<\/code> \u062f\u06a9\u0645\u0647.<\/p>\n<pre><code class=\"hljs\">\n\n<span class=\"hljs-class\"><span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title\">UserRegistrationForm<\/span>(<span class=\"hljs-params\">FlaskForm<\/span>):<\/span>\n    \n    submit = SubmitField(label=(<span class=\"hljs-string\">'Submit'<\/span>))\n\n    <span class=\"hljs-function\"><span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title\">validate_username<\/span>(<span class=\"hljs-params\">self, username<\/span>):<\/span>\n        excluded_chars = <span class=\"hljs-string\">\" *?!'^+%&amp;\/()=})({$#\"<\/span>\n        <span class=\"hljs-keyword\">for<\/span> char <span class=\"hljs-keyword\">in<\/span> self.username.data:\n            <span class=\"hljs-keyword\">if<\/span> char <span class=\"hljs-keyword\">in<\/span> excluded_chars:\n                <span class=\"hljs-keyword\">raise<\/span> ValidationError(\n                    <span class=\"hljs-string\">f\"Character <span class=\"hljs-subst\">{char}<\/span> is not allowed in username.\"<\/span>)\n                \n\n<\/code><\/pre>\n<p>\u0645\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u0645 \u0628\u0647 \u062a\u0639\u062f\u0627\u062f \u06cc\u0627 \u0686\u0646\u062f \u0631\u0648\u0634 \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u06a9\u0647 \u062f\u0648\u0633\u062a \u062f\u0627\u0631\u06cc\u0645 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u0645.  WTForms \u067e\u0633 \u0627\u0632 \u062a\u0639\u0631\u06cc\u0641\u060c \u0631\u0648\u0634 \u0647\u0627\u06cc \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u0631\u0627 \u0628\u0647 \u0637\u0648\u0631 \u062e\u0648\u062f\u06a9\u0627\u0631 \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p>\u0627\u06cc\u0646 <code>ValidationError<\/code> class \u0631\u0627\u0647 \u0645\u0646\u0627\u0633\u0628\u06cc \u0628\u0631\u0627\u06cc \u062a\u0639\u0631\u06cc\u0641 \u067e\u06cc\u0627\u0645 \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u0633\u0641\u0627\u0631\u0634\u06cc \u0628\u0647 \u0645\u0627 \u0645\u06cc \u062f\u0647\u062f.  \u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f \u06a9\u0647 \u0646\u06cc\u0627\u0632 \u062e\u0648\u0627\u0647\u06cc\u062f \u062f\u0627\u0634\u062a import \u0622\u0646 \u0631\u0627 \u0627\u0632 <code>wtforms.validators<\/code> \u0642\u0628\u0644 \u0627\u0632 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646<\/p>\n<p>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0627\u06cc\u0646 \u0631\u0648\u0634 \u062c\u062f\u06cc\u062f \u0631\u0627 \u0628\u0627 \u0648\u0627\u0631\u062f \u06a9\u0631\u062f\u0646 \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u0645\u0646\u0627\u0633\u0628 \u062f\u0631 \u0647\u0645\u0647 \u0641\u06cc\u0644\u062f\u0647\u0627 \u0628\u0647 \u062c\u0632 \u062f\u0631 \u0622\u0632\u0645\u0627\u06cc\u0634 \u06a9\u0646\u06cc\u0645 <code>username<\/code> \u0641\u06cc\u0644\u062f\u060c \u06a9\u0647 \u062d\u0627\u0648\u06cc \u06cc\u06a9 \u06a9\u0627\u0631\u0627\u06a9\u062a\u0631 \u062d\u0630\u0641 \u0634\u062f\u0647 &#8211; &#8216;%&#8217; \u0627\u0633\u062a.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/flask-form-validation-with-wtforms-11.png\" alt=\"\u0628\u0647 \u062f\u0644\u06cc\u0644 \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u0633\u0641\u0627\u0631\u0634\u06cc \u0645\u0627\u060c \u0641\u0631\u0645 \u06a9\u0627\u0631\u0628\u0631 \u062a\u0623\u06cc\u06cc\u062f \u0646\u0645\u06cc \u0634\u0648\u062f\" title=\"\"><\/p>\n<p>\u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u0645\u06cc \u0628\u06cc\u0646\u06cc\u062f\u060c \u0631\u0648\u0634 \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u0633\u0641\u0627\u0631\u0634\u06cc \u0645\u0627 \u0628\u0647 \u062e\u0648\u0628\u06cc \u0627\u062c\u0631\u0627 \u0645\u06cc \u0634\u0648\u062f \u0648 \u06cc\u06a9 \u062e\u0637\u0627\u06cc \u0627\u0639\u062a\u0628\u0627\u0631 \u0633\u0646\u062c\u06cc \u062a\u0645\u06cc\u0632 \u0631\u0627 \u0628\u0647 \u0645\u0627 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u062f\u060c \u06a9\u0647 \u0628\u0647 \u0645\u0627 \u06a9\u0645\u06a9 \u0645\u06cc \u06a9\u0646\u062f \u062a\u0627 \u0628\u0641\u0647\u0645\u06cc\u0645 \u0686\u0647 \u0686\u06cc\u0632\u06cc \u0628\u0627 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0648\u0631\u0648\u062f\u06cc \u0645\u0627 \u0627\u0634\u062a\u0628\u0627\u0647 \u0627\u0633\u062a.  \u0627\u0646\u062c\u0627\u0645 \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u062a\u062c\u0631\u0628\u0647 \u06a9\u0627\u0631\u0628\u0631 \u0631\u0627 \u062a\u0627 \u062d\u062f \u0632\u06cc\u0627\u062f\u06cc \u0628\u0647\u0628\u0648\u062f \u0645\u06cc \u0628\u062e\u0634\u062f.<\/p>\n<p>\u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0632 \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647 \u0647\u0627\u06cc \u062e\u0627\u0631\u062c\u06cc\u060c \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u06cc\u0627 API \u0647\u0627 \u0628\u0631\u0627\u06cc \u062a\u0631\u06a9\u06cc\u0628 \u0628\u0627 WTForms \u0648 \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0648\u0631\u0648\u062f\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f.  \u0648\u0642\u062a\u06cc \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u062f \u0639\u06a9\u0633 \u0628\u06af\u06cc\u0631\u06cc\u062f <code>{{ form.some_field.data }}<\/code> \u0648 \u062f\u0631 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0628\u0646\u0648\u06cc\u0633\u06cc\u062f \u06cc\u0627 \u0627\u0632 \u0622\u0646 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u06a9\u0646\u06cc\u062f\u060c \u0627\u0632 \u0627\u0639\u062a\u0628\u0627\u0631 \u0633\u0646\u062c\u06cc WTForms \u0628\u0631\u0627\u06cc \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u0627\u0632 \u0627\u06cc\u0645\u0646 \u0628\u0648\u062f\u0646 \u0630\u062e\u06cc\u0631\u0647 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n<p><strong>\u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f<\/strong>: \u0645\u0627 \u0627\u06a9\u062b\u0631 \u06a9\u062f\u0647\u0627\u06cc HTML \u0631\u0627 \u062d\u0630\u0641 \u06a9\u0631\u062f\u0647 \u0627\u06cc\u0645 \u0632\u06cc\u0631\u0627 \u0645\u0633\u062a\u0642\u06cc\u0645\u0627\u064b \u0628\u0627 \u0622\u0645\u0648\u0632\u0634 \u0645\u0627 \u0645\u0631\u062a\u0628\u0637 \u0646\u06cc\u0633\u062a\u0646\u062f.  \u06a9\u062f \u06a9\u0627\u0645\u0644 \u062f\u0631 \u062f\u0633\u062a\u0631\u0633 \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f \u0631\u0648\u06cc <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/github.com\/rhasoff\/SA-Flask-WTForms\">\u0627\u06cc\u0646 \u0645\u062e\u0632\u0646 GitHub<\/a>\u060c \u062f\u0631 \u0635\u0648\u0631\u062a\u06cc \u06a9\u0647 \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u062f \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u062f.<\/p>\n<h2 id=\"conclusion\"><span class=\"ez-toc-section\" id=\"%d9%86%d8%aa%db%8c%d8%ac%d9%87\"><\/span>\u0646\u062a\u06cc\u062c\u0647<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627 \u06cc\u06a9\u06cc \u0627\u0632 \u0636\u0631\u0648\u0631\u06cc \u062a\u0631\u06cc\u0646 \u0628\u062e\u0634 \u0647\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0627\u06cc \u0648\u0628 Flask \u0627\u0633\u062a.  Flask-WTforms \u0631\u0648\u0634 \u0647\u0627\u06cc \u0628\u0633\u06cc\u0627\u0631 \u0642\u062f\u0631\u062a\u0645\u0646\u062f \u0648 \u06cc\u0627\u062f\u06af\u06cc\u0631\u06cc \u0622\u0633\u0627\u0646\u06cc \u0631\u0627 \u0628\u0631\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0641\u0631\u0645 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u062f.<\/p>\n<p>\u0627\u06a9\u0646\u0648\u0646 \u06a9\u0647 \u0627\u0635\u0648\u0644 \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627 \u0628\u0627 Flask-WTF \u0631\u0627 \u0645\u06cc \u062f\u0627\u0646\u06cc\u062f\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u062f\u0627\u0645\u0647 \u062f\u0647\u06cc\u062f \u0648 \u0645\u0646\u0637\u0642 \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u062e\u0648\u062f \u0631\u0627 \u0627\u0639\u0645\u0627\u0644 \u06a9\u0646\u06cc\u062f \u0648\/\u06cc\u0627 \u0631\u0648\u0634 \u0647\u0627\u06cc \u062e\u0648\u062f \u0631\u0627 \u0628\u0631\u0627\u06cc \u0627\u0645\u0646\u06cc\u062a \u0648 \u062a\u062c\u0631\u0628\u0647 \u06a9\u0627\u0631\u0628\u0631\u06cc \u0628\u0647\u062a\u0631 \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u06a9\u0646\u06cc\u062f.<\/p>\n<\/div>\n<p><script>\n                        !function(f,b,e,v,n,t,s)\n                        {if(f.fbq)return;n=f.fbq=function(){n.callMethod?\n                        n.callMethod.apply(n,arguments):n.queue.push(arguments)};\n                        if(!f._fbq)f._fbq=n;n.push=n;n.loaded=!0;n.version='2.0';\n                        n.queue=();t=b.createElement(e);t.async=!0;\n                        t.src=v;s=b.getElementsByTagName(e)(0);\n                        s.parentNode.insertBefore(t,s)}(window, document,'script',\n                        'https:\/\/connect.facebook.net\/en_US\/fbevents.js');\n                        fbq('init', '525232124909042');\n                        fbq('track', 'PageView');\n                    <\/script>    (\u0628\u0631\u0686\u0633\u0628\u200c\u0647\u0627 \u0628\u0647 \u062a\u0631\u062c\u0645\u0647)# python<br \/>\n<br \/><br \/>\n<br \/>\u0645\u0646\u062a\u0634\u0631 \u0634\u062f\u0647 \u062f\u0631 1403-01-14 18:36:03<br \/>\n<\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-center kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;center&quot;,&quot;id&quot;:&quot;15618&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;\u0627\u0645\u062a\u06cc\u0627\u0632 \u0634\u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628&quot;,&quot;legend&quot;:&quot;0\\\/5 (0 \u0631\u0627\u06cc)&quot;,&quot;size&quot;:&quot;30&quot;,&quot;title&quot;:&quot;\u0627\u0639\u062a\u0628\u0627\u0631 \u0633\u0646\u062c\u06cc \u0641\u0631\u0645 \u0641\u0644\u0627\u0633\u06a9 \u0628\u0627 Flask-WTF&quot;,&quot;width&quot;:&quot;0&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} ({count} \u0631\u0627\u06cc)&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 24px;\">\n            <span class=\"kksr-muted\">\u0627\u0645\u062a\u06cc\u0627\u0632 \u0634\u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628<\/span>\n    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u0632\u0645\u0627\u0646 \u0644\u0627\u0632\u0645 \u0628\u0631\u0627\u06cc \u0645\u0637\u0627\u0644\u0639\u0647: <\/span> <span class=\"rt-time\"> 8<\/span> <span class=\"rt-label rt-postfix\">\u062f\u0642\u06cc\u0642\u0647<\/span><\/span>\u0645\u0639\u0631\u0641\u06cc \u0627\u0639\u062a\u0628\u0627\u0631 \u0633\u0646\u062c\u06cc \u0641\u0631\u0645 \u06cc\u06a9\u06cc \u0627\u0632 \u0636\u0631\u0648\u0631\u06cc \u062a\u0631\u06cc\u0646 \u0627\u062c\u0632\u0627\u06cc \u0648\u0631\u0648\u062f \u062f\u0627\u062f\u0647 \u0647\u0627 \u062f\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u0648\u0628 \u0627\u0633\u062a. \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0627\u0634\u062a\u0628\u0627\u0647 \u06a9\u0646\u0646\u062f\u060c \u0628\u0631\u062e\u06cc \u0627\u0632 \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u0628\u062f\u062e\u0648\u0627\u0647 \u0647\u0633\u062a\u0646\u062f. \u0628\u0627 \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u0648\u0631\u0648\u062f\u06cc\u060c \u0627\u0632 \u0628\u0631\u0646\u0627\u0645\u0647 \u062e\u0648\u062f \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0628\u062f\u06cc \u06a9\u0647 \u0628\u0631 \u0645\u0646\u0637\u0642 \u062a\u062c\u0627\u0631\u06cc \u0648 \u0648\u0631\u0648\u062f\u06cc \u0647\u0627\u06cc \u0645\u062e\u0631\u0628\u06cc \u06a9\u0647 \u0628\u0647 \u0645\u0646\u0638\u0648\u0631 \u0622\u0633\u06cc\u0628 \u0631\u0633\u0627\u0646\u062f\u0646 \u0628\u0647 \u0633\u06cc\u0633\u062a\u0645 \u0647\u0627\u06cc [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":15619,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1743,620],"tags":[],"class_list":["post-15618","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python","category-programming"],"acf":[],"_links":{"self":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts\/15618","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/comments?post=15618"}],"version-history":[{"count":0,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts\/15618\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/media\/15619"}],"wp:attachment":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/media?parent=15618"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/categories?post=15618"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/tags?post=15618"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}