allow to search for user id in admin/index view (dektrium#905)

* allow to search for user id in admin/index view
* apply table name to UserSearch#search

Author: thyseus

models/UserSearch.php

@@ -21,6 +21,9 @@
  */
 class UserSearch extends Model
 {
+    /** @var integer */
+    public $id;
+
     /** @var string */
     public $username;
 
@@ -53,7 +56,7 @@ public function __construct(Finder $finder, $config = [])
     public function rules()
     {
         return [
-            'fieldsSafe' => [['username', 'email', 'registration_ip', 'created_at', 'last_login_at'], 'safe'],
+            'fieldsSafe' => [['id', 'username', 'email', 'registration_ip', 'created_at', 'last_login_at'], 'safe'],
             'createdDefault' => ['created_at', 'default', 'value' => null],
             'lastloginDefault' => ['last_login_at', 'default', 'value' => null],
         ];
@@ -63,6 +66,7 @@ public function rules()
     public function attributeLabels()
     {
         return [
+            'id'              => Yii::t('user', '#'),
             'username'        => Yii::t('user', 'Username'),
             'email'           => Yii::t('user', 'Email'),
             'created_at'      => Yii::t('user', 'Registration time'),
@@ -89,14 +93,17 @@ public function search($params)
             return $dataProvider;
         }
 
+        $table_name = $query->modelClass::tableName();
+
         if ($this->created_at !== null) {
             $date = strtotime($this->created_at);
-            $query->andFilterWhere(['between', 'created_at', $date, $date + 3600 * 24]);
+            $query->andFilterWhere(['between', $table_name . '.created_at', $date, $date + 3600 * 24]);
         }
 
-        $query->andFilterWhere(['like', 'username', $this->username])
-            ->andFilterWhere(['like', 'email', $this->email])
-            ->andFilterWhere(['registration_ip' => $this->registration_ip]);
+        $query->andFilterWhere(['like', $table_name . '.username', $this->username])
+              ->andFilterWhere(['like', $table_name . '.email', $this->email])
+              ->andFilterWhere([$table_name . '.id' => $this->id])
+              ->andFilterWhere([$table_name . 'registration_ip' => $this->registration_ip]);
 
         return $dataProvider;
     }

views/admin/index.php

@@ -37,6 +37,10 @@
     'filterModel'  => $searchModel,
     'layout'       => "{items}\n{pager}",
     'columns' => [
+        [
+            'attribute' => 'id',
+            'headerOptions' => ['style' => 'width:90px;'], # 90px is sufficient for 5-digit user ids
+        ],
         'username',
         'email:email',
         [