Sugarcrm custom selection button

1. the content to be written in editview Code 
///////////////////////////////////////
///
/// Setup parent popup
/// Account popup
$ Popup_request_data = array (
'Call _ back_function' => 'set _ return ',
'Form _ name' => 'editview ',
'Field _ to_name_array '=> array (
'Id' => 'status _ C ',
'Name' => 'status _ c_name ',
),
);

$ JSON = new JSON (json_loose_type );
$ Encoded_popup_request_data = $ JSON-> encode ($ popup_request_data );
$ Xtpl-> assign ('encoded _ popup_request_data ', $ encoded_popup_request_data );


Require_once ('include/quicksearchdefaults. php ');
$ Sqs_objects = array ('parent _ name' => $ qsparent,
'Assigned _ user_name '=> $ qsuser,
'Team _ name' => $ qsteam );
$ Quicksearch_js = $ qsscripts;
$ Quicksearch_js. =' <  Script  Type  = "Text/JavaScript"  Language = "JavaScript"  >  Sqs_objects  =     '  . $ JSON-> encode ($ sqs_objects ).  '  </  Script  >  ';
// $ Quicksearch_js. ='  < Script  Type  = "Text/JavaScript"  Language  = "JavaScript"  SRC  = "Include/JavaScript/change_region _ '. $ current_language.'. js"  > </  Script  > ';

$ Xtpl-> assign ("parent_id", $ focus-> status_c );
$ Xtpl-> assign ("parent_name", $ focus-> status_c_name );

If (isset ($ _ request ['status _ C']) $ xtpl-> assign ("parent_id", $ _ request ['status _ C']);
If (isset ($ _ request ['status _ c_name ']) $ xtpl-> assign ("parent_name ", urldecode ($ _ request ['status _ c_name ']);

Require_once ('include/JavaScript. php ');
$ JavaScript = new JavaScript ();
$ JavaScript-> setformname ('editview ');
$ JavaScript-> setsugarbean ($ focus );
$ JavaScript-> addallfields ('');
$ JavaScript-> addtovalidatebinarydependency ('parent _ name', 'alpha', $ app_strings ['err _ sqs_no_match_field ']. $ mod_strings ['lbl _ member_of '], 'false', '', 'parent _ id ');

Ii. display problems in listview
In the bw_messagesend.php file, the create_list_query method is used to create a query statement.
Update idea: Add a left join to the query statement and associate the ID in the database with the table to be queried.
Solution: some code in the create_list_query Method
$ Query = "select
Users. user_name assigned_user_name,
Bw_messagesends .*
";

If ($ custom_join) {$ query. = ", bw_messagesends_cstm.sendtime_c";} // the fields in the CSTM table to be displayed in the listview // $ custom_join ['select'] Before update; // The variable is ', bw_messagesends_cstm. *'

$ Query. = ", accounts. Name status_c"; // The added field alias status_c must have the same name as the one in the CSTM table.

$ Query. = "from bw_messagesends ";
$ Query. = "left join users on bw_messagesends.assigned_user_id = users. ID ";
If ($ custom_join) {$ query. = $ custom_join ['join'];}

$ Query. = "left join accounts on bw_messagesends_c0000.status_c = accounts. ID"; // left join

$ Where_auto = '1 = 1 ';