DataTransformer - 将DateTime分成两个字段 [英] DataTransformer - split DateTime into two fields
问题描述
我最近建立了一个 DataTransformer
,它将最终接受各种不同的日期格式(如12/12/2012或12.12.2012或2012-12-12 )。
我的问题是:在将日期和时间分成两个不同的字段之前:
$ builder-> add('date_end','datetime',array(
'label'=&>'Date / Time',
'date_widget'=>'single_text',
'time_widget'=>'single_text',
'date_format'=>'dd.MM.yyyy',
'with_seconds'=> false,
'required'=> false,
))
哪些工作正常。我怎样才能用新的 DataTransformer
?
在我的实体类型中完成这项工作:
public function buildForm(FormBuilder $ builder,array $ options){
uilder-> (''date_end','dateTime',array(
'label'=>'Date / Time',
'required'=> false,
))
}
我创建的相应DateTimeType:
class DateTimeType extends AbstractType {
private $ om;
public function __construct(ObjectManager $ om){
$ this-> om = $ om;
public function buildForm(FormBuilder $ builder,array $ options){
$ transformer = new DateTimeTransformer($ this-> om);
$ builder-> appendClientTransformer($ transformer);
}
public function getDefaultOptions(array $ options){
return array(
'invalid_message'=>'TODO INVALID',
);
public function getParent(array $ options){
return'text';
}
public function getName(){
return'dateTime';
到目前为止我的变压器:
/ **
* @param \DateTime | null $ dateTime
* @return string | null
* /
public function transform($ dateTime){
if(null === $ dateTime){
return null;
}
返回$ dateTime->格式('Y-m-d H:i');
$ b / **
* @param string $ value
* @return string | null
* /
public function reverseTransform( $($ value)
{
if((null === $ value)|| empty($ value)){
return null;
}
返回新\DateTime($ value);
$ div $解析方案
假设你正在使用Symfony 2.0。我已经阅读过表单组件在2.1中有所变化。
我有一个类似的问题 - 我想要一个日期时间字段,使用日期和时间单独的小部件小时)输入。
首先,您必须为此字段创建单独的表单类型(实际上本身就是一种表单)。
我的代码看起来类似于这个(在这个例子中改变了):
class MyDateTimeType extends AbstractType
{
public function buildForm(FormBuilder $ builder,array $ options)
{
$ builder
- > add('date' ,'date',array(
'label'=>'label.form.date',
'input'=>'datetime',
'widget'=>' single_text',
'format'=>'yyyy-MM-dd',
'error_bubbling'=> true
- >
- > add('time' ,'time',array(
'label'=>'label.form.time',
'input'=>'datetime',
'widget'=>'选择',
'error_bubbling'=> true
));
$ builder-> appendClientTransformer(new DateTimeToDateTimeArrayTransformer());
$ b $ public function getDefaultOptions(array $ options)
{
return array(
'label'=>'label.form.date' ,
'error_bubbling'=> false
);
}
public function getParent(array $ options)
{
return'form';
}
public function getName()
{
return'my_datetime';
$ b 正如你所看到的,它是一种形式不要让它让你感到困惑),但我们会将它用作单一的逻辑领域。这就是数据转换器的作用。它必须将单个 DateTime
实例分割成日期和时间,以便在显示表单时获取两个子字段的数据,反之亦然表单被提交。
error_bubbling设置可确保子字段生成的错误附加到我们的新子字段,并且不会传播到顶级表单,但您可能拥有不同的目标。
我的数据转换器如下所示:
class DateTimeToDateTimeArrayTransformer实现DataTransformerInterface
{
public function transform($ datetime)
{
if(null!== $ datetime)
{
$ date = clone $日期时间;
$ date-> setTime(12,0,0);
$ time = clone $ datetime;
$ time-> setDate(1970,1,1);
}
else
{
$ date = null;
$ time = null;
}
$ result = array(
'date'=> $ date,
'time'=> $ time
);
返回$ result;
public function reverseTransform($ array)
{
$ date = $ array ['date'];
$ time = $ array ['time'];
if(null == $ date || null == $ time)
return null;
$ date-> setTime($ time-> format('G'),$ time-> format('i'));
return $ date;
最后你可以像这样使用它:
$ builder-> add('startDate','my_datetime',array(
'label'=>'label .form.date'
));
您必须将其注册为服务以别名使用它,否则直接实例化它()。
这可能不是最好的解决方案,但Symfony 2.0中的表单组件也是如此。 p>
I recently build a DataTransformer
that will accept a variety of different date formats in the end (like 12/12/2012 or 12.12.2012 or 2012-12-12).
My question is: before I had the date and time split up into two different fields:
$builder->add('date_end', 'datetime', array(
'label' => 'Date/Time',
'date_widget' => 'single_text',
'time_widget' => 'single_text',
'date_format' => 'dd.MM.yyyy',
'with_seconds' => false,
'required' => false,
) )
Which worked fine. How can I accomplish this with the new DataTransformer
?
Within my entity-type:
public function buildForm(FormBuilder $builder, array $options) {
builder->add('date_end', 'dateTime', array(
'label' => 'Date/Time',
'required' => false,
) )
}
The corresponding DateTimeType I created:
class DateTimeType extends AbstractType {
private $om;
public function __construct(ObjectManager $om) {
$this->om = $om;
}
public function buildForm(FormBuilder $builder, array $options) {
$transformer = new DateTimeTransformer($this->om);
$builder->appendClientTransformer($transformer);
}
public function getDefaultOptions(array $options) {
return array(
'invalid_message' => 'TODO INVALID',
);
}
public function getParent(array $options) {
return 'text';
}
public function getName(){
return 'dateTime';
}
}
My transformer so far:
/**
* @param \DateTime|null $dateTime
* @return string|null
*/
public function transform($dateTime) {
if (null === $dateTime) {
return null;
}
return $dateTime->format('Y-m-d H:i');
}
/**
* @param string $value
* @return string|null
*/
public function reverseTransform($value)
{
if ( (null === $value) || empty($value) ) {
return null;
}
return new \DateTime( $value );
}
解决方案 I'm assuming you are using Symfony 2.0. I've read that form component has changed somewhat in 2.1.
I had a similar problem - I wanted to have a datetime field that uses separate widgets for date and time (hour) input.
First of all, you have to create a separate form type for this field (which actually is a form in itself).
My code looks similar to this (altered for this example):
class MyDateTimeType extends AbstractType
{
public function buildForm(FormBuilder $builder, array $options)
{
$builder
->add('date', 'date', array(
'label' => 'label.form.date',
'input' => 'datetime',
'widget' => 'single_text',
'format' => 'yyyy-MM-dd',
'error_bubbling' => true
))
->add('time', 'time', array(
'label' => 'label.form.time',
'input' => 'datetime',
'widget' => 'choice',
'error_bubbling' => true
));
$builder->appendClientTransformer(new DateTimeToDateTimeArrayTransformer());
}
public function getDefaultOptions(array $options)
{
return array(
'label' => 'label.form.date',
'error_bubbling' => false
);
}
public function getParent(array $options)
{
return 'form';
}
public function getName()
{
return 'my_datetime';
}
}
As you can see it is a form (don't let it confuse you) but we will use it as a single logical field. That's where the data transformer comes in. It has to split a single DateTime
instance into date and time to obtain data for the two subfields when displaying the form and vice-versa when the form is submitted.
The error_bubbling settings ensure that the errors generated by subfields attach to our new subfield and don't propagate to the top-level form, but you may have diferrent goal.
My data transformer looks like this:
class DateTimeToDateTimeArrayTransformer implements DataTransformerInterface
{
public function transform($datetime)
{
if(null !== $datetime)
{
$date = clone $datetime;
$date->setTime(12, 0, 0);
$time = clone $datetime;
$time->setDate(1970, 1, 1);
}
else
{
$date = null;
$time = null;
}
$result = array(
'date' => $date,
'time' => $time
);
return $result;
}
public function reverseTransform($array)
{
$date = $array['date'];
$time = $array['time'];
if(null == $date || null == $time)
return null;
$date->setTime($time->format('G'), $time->format('i'));
return $date;
}
}
Finally you can use it like that:
$builder->add('startDate', 'my_datetime', array(
'label' => 'label.form.date'
));
You have to register it as a service to use it by alias, otherwise instantiate it directly (new MyDateTimeType()
).
This may not be the prettiest solution but so is the form component in Symfony 2.0.
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