Fix bulk assignees

app/assets/javascripts/issues_bulk_assignment.js

@@ -85,11 +85,13 @@
      */
 
     getFormDataAsObject() {
-      // debugger
       const formData = {
         update: {
           state_event: this.form.find('input[name="update[state_event]"]').val(),
-          assignee_ids: this.form.find('input[name="update[assignee_ids][]"]').val(),
+          // For Merge Requests
+          assignee_id: this.form.find('input[name="update[assignee_id]"]').val(),
+          // For Issues
+          assignee_ids: [this.form.find('input[name="update[assignee_ids][]"]').val()],
           milestone_id: this.form.find('input[name="update[milestone_id]"]').val(),
           issuable_ids: this.form.find('input[name="update[issuable_ids]"]').val(),
           subscription_event: this.form.find('input[name="update[subscription_event]"]').val(),

app/controllers/concerns/issuable_actions.rb

@@ -63,10 +63,10 @@ module IssuableActions
     params.require(:update).permit(
       :issuable_ids,
       :assignee_id,
-      :assignee_ids,
       :milestone_id,
       :state_event,
       :subscription_event,
+      assignee_ids: [],
       label_ids: [],
       add_label_ids: [],
       remove_label_ids: []

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

@@ -136,8 +136,13 @@
                 %li
                   %a{ href: "#", data: { id: "close" } } Closed
           .filter-item.inline
+            - if type == :issues
+              - field_name = "update[assignee_ids][]"
+            - else
+              - field_name = "update[assignee_id]"
+
             = dropdown_tag("Assignee", options: { toggle_class: "js-user-search js-update-assignee js-filter-submit js-filter-bulk-update", title: "Assign to", filter: true, dropdown_class: "dropdown-menu-user dropdown-menu-selectable",
-              placeholder: "Search authors", data: { first_user: (current_user.username if current_user), null_user: true, current_user: true, project_id: @project.id, field_name: "update[assignee_ids][]" } })
+              placeholder: "Search authors", data: { first_user: (current_user.username if current_user), null_user: true, current_user: true, project_id: @project.id, field_name: field_name } })
           .filter-item.inline
             = dropdown_tag("Milestone", options: { title: "Assign milestone", toggle_class: 'js-milestone-select js-extra-options js-filter-submit js-filter-bulk-update', filter: true, dropdown_class: "dropdown-menu-selectable dropdown-menu-milestone", placeholder: "Search milestones", data: { show_no: true, field_name: "update[milestone_id]", project_id: @project.id, milestones: namespace_project_milestones_path(@project.namespace, @project, :json), use_id: true } })
           .filter-item.inline.labels-filter