I don't see the point to invent a way when XSD can do a fairly good job
already (sadly just on XML). Must YAML and PHP be validated?

I just feel sorry if you can't get the simplest config - YAML - working. If
you are using PHP to configure SF2 wrongly, you are probably writing code
wrongly too and no one can help you to validate the latter.

Yuen-Chi Lian | www.yclian.com
"I do not seek; I find." - Pablo Picasso

On Fri, Oct 1, 2010 at 1:21 AM, Fabien Potencier <
[email protected]> wrote:

> On 9/30/10 7:11 PM, Jeremy Mikola wrote:
>
>> I didn't consider the ambiguity between attributes and child nodes.
>>  That's a good point.
>>
>> If there is ever to be a mechanism to validate the processed $config
>> array that Symfony passes to each extension loader (I wasn't too
>> concerned about YAML specifically), it would certainly need to be
>> configured in some unique manner and not the XSD file used for XML
>> configs.
>>
>
> That's something that we should be able to do. After loading a
> configuration, it's converted to an array (that's true for all loaders --
> XML, YAML, or PHP). So, just before calling the *Load() method, we can
> probably "validate" the array. I see two possibilities here:
>
> * Validation is done by the extension directly (via a *Validation()
> method); that's easy to do but then each extension needs to implement its
> own validation mechanism
>
> * We "invent" a way to validate an array of configuration parameters. Or,
> is it something that already exist?
>
> Fabien
>
>  On Thu, Sep 30, 2010 at 12:43 PM, Bulat Shakirzyanov
>> <[email protected] <mailto:[email protected]>> wrote:
>>
>>    I don't like the idea of using XSD for YAML validation.
>>
>>        * First of all, it feels like magic and magic will bite you.
>>        * Secondly there is a fundamental difference between xml and
>>          yaml/json formats. That is xml nodes can have values and
>>          properties, whereas yaml/json nodes are limited to properties
>>          only. This makes xml much more flexible and expressive
>>          configuration language than anything else. And also breaks any
>>          possibility of validation of property-only configurations,
>>          since it cannot always be mapped directly to xml.
>>        * Third reason is if we decide to go that route and use a common
>>          validation, we limit ourselves to the capabilities of the most
>>          limited configuration language, that is there (yaml), making
>>          the xml confutations much more verbose and hard to read.
>>
>>    <service id="service_id" class="ServiceClass" />
>>
>>                 now would become
>>
>>    <service>
>>    <id>service_id</id>
>>    <class>ServiceClass</class>
>>    </service>
>>
>>                 and even worse with xml routing files
>>
>>        * Last reason is the simple premise - use right tool for the job
>>          and XSD is not right tool for validation of YAML
>>        * in fact, there is no right tool, as YAML by definition
>>
>>
>>    On Thu, Sep 30, 2010 at 12:07 PM, Jeremy Mikola <[email protected]
>>    <mailto:[email protected]>> wrote:
>>
>>        On Sep 29, 1:33 pm, Lukas Kahwe Smith <[email protected]
>>        <mailto:[email protected]>> wrote:
>>         > On 29.09.2010, at 10:27, Francois Zaninotto wrote:
>>         >
>>         > then again it could just mean that someone could try to
>>        implement applying XSD validation directly on yaml aka
>>        interpreting the XSD rules and then checking the yaml if it
>>        passes. we might just support a subset of XSD for the time being
>>        which might cover most use cases already .. not sure .. just
>>        thinking allowed here.
>>
>>        A co-worker of mine just suggested this while I was sharing an XSD
>> a
>>        made for a bundle I'm working on.  I think that's definitely
>>        do-able,
>>        and would make for a great Symfony2 console command.  It wouldn't
>>        necessarily have to map back to a specific line in the YML,
>>        rather the
>>        XSD could validate the entire configuration once it is loaded by
>>        various drivers (XML, YML, PHP, annotations) and then report errors
>>        such as "validation: enabled expected boolean, string given".
>>
>>        A side-benefit of this would be only requiring bundle developers to
>>        make a single file to serve multiple purposes, vs. additional
>>        schema/
>>        validation files in whatever format to validate YML, PHP, and other
>>        formats.  Thought perhaps this is a mis-use of XSD?
>>
>>        --
>>        If you want to report a vulnerability issue on symfony, please
>>        send it to security at symfony-project.com
>>        <http://symfony-project.com>
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>>    --
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>>
>>
>> --
>> jeremy mikola
>>
>> --
>> If you want to report a vulnerability issue on symfony, please send it
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>
> --
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> security at symfony-project.com
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