Object of class DateTime could not be converted to string

[PoisonousJohn]

I have this error in listAction when adding field that has orm type date or datetime. Has anyone idea how to fix this?

Render fails on 20 string of base_list_field.htm.twig. Object passes here instead of string.

        {%- block field %}{{ value }}{% endblock -%}

I have no clue where to look for reason of error. Maybe some kind of a data transformer missing

[thomas2411]

I have the same after new update. I am using 2.0 branches and has this error with datetime list type:

Object of class DateTime could not be converted to string in ...app\cache\dev\twig\....") in "SonataAdminBundle:CRUD:base_list_field.html.twig".

I don't know if something changed in Doctrine and is connected with __toString()

[fran6co]

The problem is in the SonataIntlBundle. The 2.0 branch doesn't have the twig files for rendering (referenced here https://github.com/sonata-project/SonataDoctrineORMAdminBundle/blob/2.0/DependencyInjection/SonataDoctrineORMAdminExtension.php#L114)

Some fixes:

• Remove SonataIntlBundle
• Use the master branch of SonataIntlBundle (not sure if it contains incompatiblities with symfony 2.0)

[PoisonousJohn]

Remove SonataIntlBundle

This works for me. But I'm not sure how it will affect other components

Use the master branch of SonataIntlBundle (not sure if it contains incompatiblities with symfony 2.0)

I'm now at master branch, but it seems like AdminBundle just ignores these templates. I checked defaultsArray. It's correct.

[fran6co]

It's an optional bundle, everything should work normally if you remove it. Some internationalization features are not going to be available.

[PoisonousJohn]

Ok, thx for your help =)

[rande]

@JohnPoison is the field declared as DateTime in your doctrine definition ? if not you need to set the field type as second argument.

[PoisonousJohn]

@rande
It's declared as a "date" type in orm file and no type specified in admin class

    fields:
        startDate:
            type: date

...
->add('startDate')
...

[andrewtch]

bumping, DateTime can not be rendered on 2.1

[bigcalm]

Still not fixed for Symfony 2.1.3.
Removing the SonataIntlBundle and clearing the cache made no difference for me.

Continue to see this error in a list view:

An exception has been thrown during the rendering of a template ("Catchable Fatal Error: Object of class DateTime could not be converted to string in MyProject/app/cache/dev/twig/c8/ba/c455cc2ad87a1b1e1f5964432bbb.php line 54") in "SonataAdminBundle:CRUD:list.html.twig".

Additionally, base_list_field.html.twig doesn't appear to pull in list_datetime.html.twig
Instead the 'datetime' fields are being treated as 'text'

[andrewtch]

@bigcalm , please make sure that you're using correct entity field naming in $list->add. If you have, e.g. private $soneField, you should do $list->add('someField'), not $list->add('some_field') which will give you the same error as above.

In my case the issue has been fixed by forcibly removing doctrine proxy classes and re-generating custom repositories.

[bigcalm]

Well, now I just feel like an idiot :)

Thank you @andrewtch that fixed it.

[mmenozzi]

Hi,
I want to state that the cause of this error could be that SonataIntlBundle is installed (via composer for example) but not enabled in AppKernel.

This is because at https://github.com/sonata-project/SonataDoctrineORMAdminBundle/blob/2.0/DependencyInjection/SonataDoctrineORMAdminExtension.php#L114 the strategy to decide if load intl templates or not is implemented with class_exists that in such situation returns true.

Now if you look at https://github.com/sonata-project/SonataAdminBundle/blob/2.0/Twig/Extension/SonataAdminExtension.php#L74 you can see that Twig will throws the exception (because SonataIntlBundle isn't enabled) and so will be used the base_list_field.html.twig template that will try to convert a DateTime in string.

[waiting-for-dev]

Thanks @mmenozzi your solution works. This should be stated in the documentation, because it cause very frustrating errors in the very early stage of the development.

[mmenozzi]

You're welcome. ;)

[xmak]

This error still happens when you try to use a datetime field as associated_property for a related entity filed in list action.

The field is defined as datetime in the related entity:

    /**
     * @var \DateTime
     *
     * @ORM\Column(name="endTime", type="datetime", nullable=true)
     */
    private $endTime;

and added to list fileds like this:

>add('solvingLog', 'entity', array('label' => 'End date', 'associated_property' => 'endTime'))

And i get the same error message.

I have installed the SonataIntlBundle and enabled it in AppKernel.php.

Any ideas what could be wrong?

[xmak]

I figured out the cause of my problem and submitted an issue to the SonataDoctrineORMAdminBundle:

sonata-project/SonataDoctrineORMAdminBundle#347

[dialmedu]

Although you can use the

 
// views/default/date.html.twig
date : {{ game.gameDate|date('Y-m-d') }} 

result
date : 2015-01-01

Solution view http://stackoverflow.com/questions/render-datetime