feat: Limit the number of custom filters per user (#7101)

app/controllers/api/v1/accounts/custom_filters_controller.rb

@@ -11,6 +11,7 @@ class Api::V1::Accounts::CustomFiltersController < Api::V1::Accounts::BaseContro
     @custom_filter = current_user.custom_filters.create!(
       permitted_payload.merge(account_id: Current.account.id)
     )
+    render json: { error: @custom_filter.errors.messages }, status: :unprocessable_entity and return unless @custom_filter.valid?
   end
 
   def update

app/javascript/dashboard/routes/dashboard/customviews/AddCustomViews.vue

@@ -98,7 +98,7 @@ export default {
         const errorMessage = error?.message;
         this.alertMessage =
           errorMessage || this.filterType === 0
-            ? this.$t('FILTER.CUSTOM_VIEWS.ADD.API_FOLDERS.ERROR_MESSAGE')
+            ? errorMessage
             : this.$t('FILTER.CUSTOM_VIEWS.ADD.API_SEGMENTS.ERROR_MESSAGE');
       } finally {
         this.showAlert(this.alertMessage);

app/models/custom_filter.rb

@@ -17,8 +17,16 @@
 #  index_custom_filters_on_user_id     (user_id)
 #
 class CustomFilter < ApplicationRecord
+  MAX_FILTER_PER_USER = 50
   belongs_to :user
   belongs_to :account
 
   enum filter_type: { conversation: 0, contact: 1, report: 2 }
+  validate :validate_number_of_filters
+
+  def validate_number_of_filters
+    return true if account.custom_filters.where(user_id: user_id).size < MAX_FILTER_PER_USER
+
+    errors.add :account_id, I18n.t('errors.custom_filters.number_of_records')
+  end
 end