Added option enableGuessTitle for MultipleInput

Author: Eugene Tupikov

CHANGELOG.md

@@ -4,7 +4,8 @@ Yii2 multiple input change log
 1.2.3 in development
 --------------------
 
-- Enh #34: Added options `allowEmptyList` (unclead)
+- Enh #34: Added option `allowEmptyList` (unclead)
+- Enh #35: Added option `enableGuessTitle` for MultipleInput (unclead)
 
 1.2.2
 -----

README.md

@@ -280,6 +280,22 @@ In some cases you need to have the ability to delete all rows in the list. For t
 
 ```
 
+### Guess column title
+
+Sometimes you can use the widget without defining columns but you want to have the column header of the table.
+In this case you can use `enableGuessColumn` option like in the example below:
+
+```php
+
+    echo $form->field($model, 'emails')->widget(MultipleInput::className(), [
+        'limit' => 5,
+        'allowEmptyList' => true,
+        'enableGuessTitle' => true
+    ])
+    ->label(false);
+
+```
+
 ## JavaScript events
 This widget has following events:
  - `afterInit`: triggered after initialization

examples/views/multiple-input.php

@@ -25,7 +25,8 @@
 <?php
     echo $form->field($model, 'emails')->widget(MultipleInput::className(), [
         'limit' => 5,
-        'allowEmptyList' => true
+        'allowEmptyList' => true,
+        'enableGuessTitle' => true
     ])
     ->label(false);
 ?>

src/MultipleInput.php

@@ -59,6 +59,11 @@ class MultipleInput extends InputWidget
      */
     public $allowEmptyList = false;
 
+    /**
+     * @var bool whether to guess column title in case if there is no definition of columns
+     */
+    public $enableGuessTitle = false;
+
 
     /**
      * Initialization.
@@ -91,12 +96,15 @@ protected function initData()
     protected function guessColumns()
     {
         if (empty($this->columns) && $this->hasModel()) {
-            $this->columns = [
-                [
-                    'name' => $this->attribute,
-                    'type' => MultipleInputColumn::TYPE_TEXT_INPUT
-                ]
+            $column = [
+                'name' => $this->attribute,
+                'type' => MultipleInputColumn::TYPE_TEXT_INPUT
             ];
+
+            if ($this->enableGuessTitle && $this->hasModel()) {
+                $column['title'] = $this->model->getAttributeLabel($this->attribute);
+            }
+            $this->columns[] = $column;
         }
     }