Fixes #7008: Removed extra white space in GridView filter cell

framework/CHANGELOG.md

@@ -16,6 +16,7 @@ Yii Framework 2 Change Log
 - Enh #6852: Added `yii\helpers\BaseHtmlPurifier::helpers()` in order to be able to configure `HtmlPurifier` helper globally via subclassing (Alex-Code)
 - Enh #6882: Added `yii\web\ErrorHandler::getTypeUrl()` in order to allow providing custom types/classes/methods URLs for subclasses (brandonkelly)
 - Enh #6896: Added `yii\log\FileTarget::$enableRotation` to allow disabling log rotation when external tools are configured for this (cebe)
+- Enh #7008: Removed extra white space in GridView filter cell (uran1980)
 - Enh #7051: Added support for preventing swapping values between different cookies (pavimus, qiangxue) 
 - Chg #5690: adjusted paths in message config generated by `yii message/config` to reflect directory structure better (mikehaertl, samdark)
 - Chg #6661: Hyperlinks that are enclosed within an exist form will use the same form for submission if they specify both of the `href` and `data-method` attributes (qiangxue)

framework/grid/DataColumn.php

@@ -159,15 +159,15 @@ class DataColumn extends Column
         if ($this->filter !== false && $model instanceof Model && $this->attribute !== null && $model->isAttributeActive($this->attribute)) {
             if ($model->hasErrors($this->attribute)) {
                 Html::addCssClass($this->filterOptions, 'has-error');
-                $error = Html::error($model, $this->attribute, $this->grid->filterErrorOptions);
+                $error = ' ' . Html::error($model, $this->attribute, $this->grid->filterErrorOptions);
             } else {
                 $error = '';
             }
             if (is_array($this->filter)) {
                 $options = array_merge(['prompt' => ''], $this->filterInputOptions);
-                return Html::activeDropDownList($model, $this->attribute, $this->filter, $options) . ' ' . $error;
+                return Html::activeDropDownList($model, $this->attribute, $this->filter, $options) . $error;
             } else {
-                return Html::activeTextInput($model, $this->attribute, $this->filterInputOptions) . ' ' . $error;
+                return Html::activeTextInput($model, $this->attribute, $this->filterInputOptions) . $error;
             }
         } else {
             return parent::renderFilterCellContent();