私はまったくの初心者で、ExtJS に取り組んで苦労しています。ユーザー レコードのリストを取得し、それらを Ext グリッド パネルに表示することになっています。ExtJS フロントエンドと Grails (Groovy Controllers) バックエンドがあります。次のようないくつかのリンクを参照しました。
http://docs.sencha.com/extjs/4.0.7/#!/example/grid/row-editing.html
http://docs.sencha.com/extjs/4.0.7/#!/example/restful/restful.html
http://docs.sencha.com/extjs/4.0.7/#!/example/writer/writer.html
The api property ( or ) tag ( or )attribute ( I don't know what it is called ) helps me in getting the list of JSON objects to be displayed in the Grid. Also, when I select a row and click on Delete, the request is reaching the delete action in my controller. But my problems begins here: how do I make sure that:
1) the selected row is deleted from Database? How do I pass the identifier or something to controller so that it will delete the record?
2) When I add a row, how do I pass the field values to backend Controller?
Most of the code is same as given in the restful link above. For reference, this is my Datastore:
https://docs.google.com/document/d/1gQyLCt6xWXTm-OUgYu7hku47r5WcS0my5yPBSKj2B7I/edit?usp=sharing