bind row data to column value-callback.

Author: z-song

src/Grid.php

@@ -355,6 +355,8 @@ public function build()
 
         $data = $this->processFilter();
 
+        Column::setOriginalGridData($data);
+
         $this->columns->map(function (Column $column) use (&$data) {
             $data = $column->fill($data);
 

src/Grid/Column.php

@@ -83,6 +83,13 @@ class Column
      */
     protected $relationColumn;
 
+    /**
+     * Original grid data.
+     *
+     * @var array
+     */
+    protected static $originalGridData = [];
+
     /**
      * @param string $name
      * @param string $label
@@ -331,7 +338,7 @@ public function editable()
      */
     public function value(Closure $callable)
     {
-        $this->valueCallback = $callable->bindTo($this);
+        $this->valueCallback = $callable;
 
         return $this;
     }
@@ -410,27 +417,58 @@ protected function htmlWrap($value, $row = [])
      */
     public function fill(array $data)
     {
-        foreach ($data as &$item) {
-            $this->original = $value = array_get($item, $this->name);
+        foreach ($data as $key => &$row) {
+            $this->original = $value = array_get($row, $this->name);
+
+            $isCustomColumn = !array_has($row, $this->name);
 
             $value = $this->htmlEntityEncode($value);
 
-            array_set($item, $this->name, $value);
+            array_set($row, $this->name, $value);
 
             if ($this->hasValueCallback()) {
-                $value = call_user_func($this->valueCallback, $this->original);
-                array_set($item, $this->name, $value);
+
+                $input = $isCustomColumn ? $row : $this->original;
+
+                $callback = $this->bindOriginalRow($this->valueCallback, $key);
+                $value = call_user_func($callback, $input);
+                array_set($row, $this->name, $value);
             }
 
             if ($this->hasHtmlCallback()) {
-                $value = $this->htmlWrap($value, $item);
-                array_set($item, $this->name, $value);
+                $value = $this->htmlWrap($value, $row);
+                array_set($row, $this->name, $value);
             }
         }
 
         return $data;
     }
 
+    /**
+     * Set original grid data to column.
+     *
+     * @param Closure $callback
+     * @param int     $key
+     *
+     * @return Closure
+     */
+    protected function bindOriginalRow(Closure $callback, $key)
+    {
+        $originalRow = static::$originalGridData[$key];
+
+        return $callback->bindTo((object)$originalRow);
+    }
+
+    /**
+     * Set original data for column.
+     *
+     * @param array $input
+     */
+    public static function setOriginalGridData(array $input)
+    {
+        static::$originalGridData = $input;
+    }
+
     /**
      * Convert characters to HTML entities recursively.
      *

tests/UserGridTest.php

@@ -158,6 +158,19 @@ public function testFilterRelation()
             ->seeInElement('td', $user->end_at);
     }
 
+    public function testValueCallback()
+    {
+        $this->seedsTable(1);
+
+        $user = UserModel::with('profile')->find(1);
+
+        $this->visit('admin/users')
+            ->seeInElement('th', 'Column1 not in table')
+            ->seeInElement('th', 'Column2 not in table')
+            ->seeInElement('td', "full name:{$user->profile->first_name} {$user->profile->last_name}")
+            ->seeInElement('td', "{$user->email}#{$user->profile->color}");
+    }
+
     public function testHasManyRelation()
     {
         factory(\Tests\Models\User::class, 10)

tests/controllers/UserController.php

@@ -85,6 +85,14 @@ protected function grid()
             $grid->profile()->start_at('开始时间');
             $grid->profile()->end_at('结束时间');
 
+            $grid->column('column1_not_in_table')->display(function ($row) {
+                return 'full name:'.$row['full_name'];
+            });
+
+            $grid->column('column2_not_in_table')->display(function ($row) {
+                return $this->email.'#'.$this->profile['color'];
+            });
+
             $grid->tags()->value(function ($tags) {
                 $tags = collect($tags)->map(function ($tag) {
                     return "<code>{$tag['name']}</code>";