How to implement the default selection of select box in laravel-admin
This article introduces the relevant knowledge of "how to realize the default selection of select frame in laravel-admin". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!
The code is as follows:
Protected function form () {return Admin::form (Member::class, function (Form $form) {/ / $form- > display ('id',' ID'); $form- > text ('mac',' terminal mac'); $form- > text ('phone',' mobile number'); $form- > text ('password',' password'); / / determine whether edit $id = Request::route ('member'); $place_id ='' $rule_id =''; if ($id) {$model = $form- > model ()-> find ($id); $place_id = $model- > place_id; $rule_id = $model- > rule_id;} $form- > select ('place_id',' belongs')-> options ("/ api/getPlace/$place_id"); $form- > select ('rule_id',' Rule')-> options ("/ api/getRule/$rule_id") });} / implementation of api public function getPlace (Request $request) {$name = $request- > get ('p'); $id = $request- > id; $where = []; if ($name) {$where = ['name','like', "% $name%"];} $places = Place::where ($where)-> get (); $result = []; foreach ($places as $key= > $value) {$result [$key] [' id'] = $value- > Id $result [$key] ['text'] = $value- > name; if ($value- > Id = = $id) {$result [$key] [' selected'] = true;}} if (! $id) {array_unshift ($result, ['id'= >', 'text'= >' Please choose a place', 'selected'= > true]) } else {array_unshift ($result, ['id'= >'', 'text'= >' Please choose a place']);} return response ()-> json ($result);}
Pay attention
Response ()-> json () must be returned when it is returned, otherwise the type returned will be text/html.
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