From 84c397b6ae2d2589415be01cf364b9371b70b781 Mon Sep 17 00:00:00 2001
From: Dfdez <mail.dfdez@gmail.com>
Date: Fri, 11 Apr 2025 19:21:10 +0200
Subject: [PATCH] feat: add negative pattern feature

---
 .../Editor/EditorControlPane/Widget.js        | 28 +++++++++++++++++--
 .../src/constants/configSchema.js             |  5 ++++
 packages/decap-cms-locales/src/en/index.js    |  3 +-
 3 files changed, 33 insertions(+), 3 deletions(-)

diff --git a/packages/decap-cms-core/src/components/Editor/EditorControlPane/Widget.js b/packages/decap-cms-core/src/components/Editor/EditorControlPane/Widget.js
index 6d0bcac29050..2c6cc3249b22 100644
--- a/packages/decap-cms-core/src/components/Editor/EditorControlPane/Widget.js
+++ b/packages/decap-cms-core/src/components/Editor/EditorControlPane/Widget.js
@@ -127,7 +127,7 @@ export default class Widget extends Component {
     const value = this.getValidateValue();
     const field = this.props.field;
     const errors = [];
-    const validations = [this.validatePresence, this.validatePattern];
+    const validations = [this.validatePresence, this.validatePattern, this.validateNegativePattern];
     if (field.get('meta')) {
       validations.push(this.props.validateMetaField);
     }
@@ -186,6 +186,30 @@ export default class Widget extends Component {
     return { error: false };
   };
 
+  validateNegativePattern = (field, value) => {
+    const { t, parentIds } = this.props;
+    const negativePattern = field.get('negative_pattern', false);
+
+    if (isEmpty(value)) {
+      return { error: false };
+    }
+
+    if (negativePattern && RegExp(negativePattern.first()).test(value)) {
+      const error = {
+        type: ValidationErrorTypes.PATTERN,
+        parentIds,
+        message: t('editor.editorControlPane.widget.regexNegativePattern', {
+          fieldLabel: field.get('label', field.get('name')),
+          pattern: negativePattern.last(),
+        }),
+      };
+
+      return { error };
+    }
+
+    return { error: false };
+  };
+
   validateWrappedControl = field => {
     const { t, parentIds } = this.props;
     if (typeof this.wrappedControlValid !== 'function') {
@@ -255,7 +279,7 @@ export default class Widget extends Component {
 
   setInactiveStyle = () => {
     this.props.setInactiveStyle();
-    if (this.props.field.has('pattern') && !isEmpty(this.getValidateValue())) {
+    if ((this.props.field.has('pattern') || this.props.field.has('negative_pattern')) && !isEmpty(this.getValidateValue())) {
       this.validate();
     }
   };
diff --git a/packages/decap-cms-core/src/constants/configSchema.js b/packages/decap-cms-core/src/constants/configSchema.js
index 5efd2cd4c172..3d0cc81cfda6 100644
--- a/packages/decap-cms-core/src/constants/configSchema.js
+++ b/packages/decap-cms-core/src/constants/configSchema.js
@@ -66,6 +66,11 @@ function fieldsConfig() {
           minItems: 2,
           items: [{ oneOf: [{ type: 'string' }, { instanceof: 'RegExp' }] }, { type: 'string' }],
         },
+        negative_pattern: {
+          type: 'array',
+          minItems: 2,
+          items: [{ oneOf: [{ type: 'string' }, { instanceof: 'RegExp' }] }, { type: 'string' }],
+        },
         field: { $ref: `field_${id}` },
         fields: { $ref: `fields_${id}` },
         types: { $ref: `fields_${id}` },
diff --git a/packages/decap-cms-locales/src/en/index.js b/packages/decap-cms-locales/src/en/index.js
index ede9afcb9294..c75762c44b55 100644
--- a/packages/decap-cms-locales/src/en/index.js
+++ b/packages/decap-cms-locales/src/en/index.js
@@ -80,6 +80,7 @@ const en = {
       widget: {
         required: '%{fieldLabel} is required.',
         regexPattern: "%{fieldLabel} didn't match the pattern: %{pattern}.",
+        regexNegativePattern: "%{fieldLabel} should not contain pattern: %{pattern}.",
         processing: '%{fieldLabel} is processing.',
         range: '%{fieldLabel} must be between %{minValue} and %{maxValue}.',
         min: '%{fieldLabel} must be at least %{minValue}.',
@@ -139,7 +140,7 @@ const en = {
       saving: 'Saving...',
       save: 'Save',
       statusInfoTooltipDraft:
-        'Entry status is set to draft. To finalize and submit it for review, set the status to ‘In review’',
+        'Entry status is set to draft. To finalize and submit it for review, set the status to "In review"',
       statusInfoTooltipInReview:
         'Entry is being reviewed, no further actions are required. However, you can still make additional changes while it is being reviewed.',
       discarding: 'Discarding...',