Remove store logic from boards models

app/assets/javascripts/boards/models/list.js

@@ -83,27 +83,7 @@ class List {
   }
 
   save() {
-    const entity = this.label || this.assignee || this.milestone;
-    let entityType = '';
-    if (this.label) {
-      entityType = 'label_id';
-    } else if (this.assignee) {
-      entityType = 'assignee_id';
-    } else if (IS_EE && this.milestone) {
-      entityType = 'milestone_id';
-    }
-
-    return boardsStore
-      .createList(entity.id, entityType)
-      .then(res => res.data)
-      .then(data => {
-        this.id = data.id;
-        this.type = data.list_type;
-        this.position = data.position;
-        this.label = data.label;
-
-        return this.getIssues();
-      });
+    return boardsStore.saveList(this);
   }
 
   destroy() {

app/assets/javascripts/boards/stores/boards_store.js

@@ -525,6 +525,29 @@ const boardsStore = {
   clearMultiSelect() {
     this.multiSelect.list = [];
   },
+
+  saveList(list) {    
+    const entity = list.label || list.assignee || list.milestone;
+    let entityType = '';
+    if (list.label) {
+      entityType = 'label_id';
+    } else if (list.assignee) {
+      entityType = 'assignee_id';
+    } else if (IS_EE && list.milestone) {
+      entityType = 'milestone_id';
+    }
+
+    return this.createList(entity.id, entityType)
+      .then(res => res.data)
+      .then(data => {
+        list.id = data.id;
+        list.type = data.list_type;
+        list.position = data.position;
+        list.label = data.label;
+
+        return list.getIssues();
+      });
+  },
 };
 
 BoardsStoreEE.initEESpecific(boardsStore);