Pass multiple assignee availability boolean to FE and set for use in...

Pass multiple assignee availability boolean to FE and set for use in FilteredSearchTokenKeysIssuesEE

app/assets/javascripts/filtered_search/filtered_search_manager.js

@@ -15,6 +15,10 @@ class FilteredSearchManager {
     this.tokensContainer = this.container.querySelector('.tokens-container');
     this.filteredSearchTokenKeys = gl.FilteredSearchTokenKeys;
 
+    gl.FilteredSearchTokenKeysIssuesEE.init({
+      multipleAssignees: this.filteredSearchInput.dataset.multipleAssignees,
+    });
+
     if (this.page === 'issues' || this.page === 'boards') {
       this.filteredSearchTokenKeys = gl.FilteredSearchTokenKeysIssuesEE;
     }

app/assets/javascripts/filtered_search/filtered_search_token_keys_issues_ee.js

@@ -19,12 +19,16 @@ const weightConditions = [{
 }];
 
 class FilteredSearchTokenKeysIssuesEE extends gl.FilteredSearchTokenKeys {
+  static init(availableFeatures) {
+    this.availableFeatures = availableFeatures;
+  }
+
   static get() {
     const tokenKeys = Array.from(super.get());
 
     // Enable multiple assignees
     const assigneeTokenKey = tokenKeys.find(tk => tk.key === 'assignee');
-    assigneeTokenKey.type = 'array';
+    if (this.availableFeatures && this.availableFeatures.multipleAssignees) assigneeTokenKey.type = 'array';
 
     tokenKeys.push(weightTokenKey);
     return tokenKeys;

app/views/shared/issuable/_search_bar.html.haml

 - type = local_assigns.fetch(:type)
 - board = local_assigns.fetch(:board, nil)
 - block_css_class = type != :boards_modal ? 'row-content-block second-block' : ''
+- can_multiple_assignees = @project.feature_available?(:"multiple_#{type.to_s}_assignees")
 
 .issues-filters
   .issues-details-filters.filtered-search-block{ class: block_css_class, "v-pre" => type == :boards_modal }
@@ -27,7 +28,7 @@
             .scroll-container
               %ul.tokens-container.list-unstyled
                 %li.input-token
-                  %input.form-control.filtered-search{ id: "filtered-search-#{type.to_s}", placeholder: 'Search or filter results...', data: { 'project-id' => @project.id, 'username-params' => @users.to_json(only: [:id, :username]), 'base-endpoint' => project_path(@project) } }
+                  %input.form-control.filtered-search{ id: "filtered-search-#{type.to_s}", placeholder: 'Search or filter results...', data: { 'project-id' => @project.id, 'username-params' => @users.to_json(only: [:id, :username]), 'base-endpoint' => project_path(@project), 'multiple-assignees' => can_multiple_assignees } }
               = icon('filter')
             #js-dropdown-hint.filtered-search-input-dropdown-menu.dropdown-menu.hint-dropdown
               %ul{ data: { dropdown: true } }