php Yii2 DetailView：使用函数的属性值
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Yii2 DetailView: value of attribute using a function
提问by Deena Samy
I get an error when I use a function to get the value of an attribute and it's working normally using Gridview. What I'm doing wrong?
当我使用函数获取属性值时出现错误，并且它使用 Gridview 正常工作。我做错了什么？
<?= DetailView::widget([
'model' => $model,
'attributes' => [
[
'label' => 'subject_type',
'value' => function ($data) {
return Lookup::item("SubjectType", $data->subject_type);
},
'filter' => Lookup::items('SubjectType'),
],
'id',
'subject_nature',
],
]) ?>
回答by beginner
I have experienced this kind of problem. The error was
我遇到过这种问题。错误是
PHP Warning – yii\base\ErrorException
htmlspecialchars() expects parameter 1 to be string, object given
PHP Warning – yii\base\ErrorException
htmlspecialchars() expects parameter 1 to be string, object given
what I did was transfer the function in the model like this.
我所做的是像这样在模型中传递函数。
function functionName($data) {
return Lookup::item("SubjectType", $data->subject_type);
},
and then in your view.php file..
然后在您的 view.php 文件中..
[
'label'=>'subject_type',
'value'=>$model->functionName($data),
],
回答by Alexey Berezuev
Just use call_user_func()
只需使用call_user_func()
<?= DetailView::widget([
'model' => $model,
'attributes' => [
[
'label' => 'subject_type',
'value' => call_user_func(function ($data) {
return Lookup::item("SubjectType", $data->subject_type);
}, $model),
'filter' => Lookup::items('SubjectType'),
],
'id',
'subject_nature',
],
]) ?>
回答by Deena Samy
Fabrizio Caldarelli, on 05 January 2015 - 03:53 PM, said: Yes because 'value' attribute is a real value or attribute name, as doc says
Fabrizio Caldarelli 于 2015 年 1 月 5 日 - 下午 03:53 说：是的，因为 'value' 属性是真实值或属性名称，正如 doc 所说
So your code should be:
所以你的代码应该是：
<?= DetailView::widget([
'model' => $model,
'attributes' => [
[
'label' => 'subject_type',
'value' => Lookup::item("SubjectType", $model->subject_type),
'filter' => Lookup::items('SubjectType'),
],
'id',
'subject_nature',
],
]) ?>
