Commits
-------
601d462 [Form] Added getValidators() to Form class
Discussion
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[Form] Added getValidators() to Form class
Bug fix: no
Feature addition: yes
Backwards compatibility break: no
Symfony2 tests pass: yes
I am working implementing client side validation in a bundle that adds validation rules via a form builder. I am currently unable to pull the validators from the Form class which is making the implementation incredibly difficult.
I noticed that the transformers are currently exposed and based on some feedback I got on IRC I am guessing these weren't exposed simply because no one needed them at the time.
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by mlively at 2011-12-28T20:54:41Z
Side note: It would be incredibly helpful to have this in the current branch of symfony. I implemented it on master because it is a new feature, but I would be more than happy to patch it into 2.0 if you would like.
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by canni at 2012-01-11T10:15:46Z
👍
As this is new feature it cannot fit into 2.0 series, but 2.1 is just few clicks ahead, maybe this feature will fit into ;)
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by bschussek at 2012-01-31T08:23:05Z
ping @fabpot
👍
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by stof at 2012-01-31T08:51:26Z
@mlively could you rebase your branch ? it conflicts with the current master
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by mlively at 2012-01-31T21:38:39Z
Yes, I can do that might be later today.
Commits
-------
8dc78bd [Form] Fixed YODA issues
600cec7 [Form] Added missing entries to CHANGELOG and UPGRADE
b154f7c [Form] Fixed docblock and unneeded use statement
399af27 [Form] Implemented checks to assert that values and indices generated in choice lists match their requirements
5f6f75c [Form] Fixed outstanding issues mentioned in the PR
7c70976 [Form] Fixed text in UPGRADE file
c26b47a [Form] Made query parameter name generated by ORMQueryBuilderLoader unique
18f92cd [Form] Fixed double choice fixing
f533ef0 [Form] Added ChoiceView class for passing choice-related data to the view
d72900e [Form] Incorporated changes suggested in PR comments
28d2f6d Removed duplicated lines from UPGRADE file
e1fc5a5 [Form] Restricted form names to specific characters to (1) fix generation of HTML IDs and to (2) avoid problems with property paths.
87b16e7 [Form] Greatly improved ChoiceListInterface and all of its implementations
Discussion
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[Form] Improved ChoiceList implementation and made form naming more restrictive
Bug fix: yes
Feature addition: yes
Backwards compatibility break: **yes**
Symfony2 tests pass: yes
Fixes the following tickets: #2869, #3021, #1919, #3153
Todo: adapt documentation
The changes in this PR are primarily motivated by the fact that invalid form/field names lead to various problems.
1. When a name contains any characters that are not permitted in HTML "id" attributes, these are invalid
2. When a name contains periods ("."), form validation is broken, because they confuse the property path resolution
3. Since choices in expanded choice fields are directly translated to field names, choices applying to either 1. or 2. lead to problems. But choices should be unrestricted.
4. Unless a choice field is not expanded and does not allow multiple selection, it is not possible to use empty strings as choices, which might be desirable in some occasions.
The solution to these problems is to
* Restrict form names to disallow unpermitted characters (solves 1. and 2.)
* Generate integer indices to be stored in the HTML "id" and "name" attributes and map them to the choices (solves 3.). Can be reverted to the old behaviour by setting the option "index_generation" to ChoiceList::COPY_CHOICE
* Generate integer values to be stored in the HTML "value" attribute and map them to the choices (solves 4.). Can be reverted to the old behaviour by setting the option "value_generation" to ChoiceList::COPY_CHOICE
Apart from these fixes, it is now possible to write more flexible choice lists. One of these is `ObjectChoiceList`, which allows to use objects as choices and is bundled in the core. `EntityChoiceList` has been made an extension of this class.
$form = $this->createFormBuilder()
->add('object', 'choice', array(
'choice_list' => new ObjectChoiceList(
array($obj1, $obj2, $obj3, $obj4),
// property path determining the choice label (optional)
'name',
// preferred choices (optional)
array($obj2, $obj3),
// property path for object grouping (optional)
'category',
// property path for value generation (optional)
'id',
// property path for index generation (optional)
'id'
)
))
->getForm()
;
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by kriswallsmith at 2012-01-19T18:09:09Z
Rather than passing `choices` and a `choice_labels` arrays to the view would it make sense to introduce a `ChoiceView` class and pass one array of objects?
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by stof at 2012-01-22T15:32:36Z
@bschussek can you update your PR according to the feedback (and rebase it as it conflicts according to github) ?
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by bschussek at 2012-01-24T00:15:42Z
@kriswallsmith fixed
Fixed all outstanding issues. Would be glad if someone could review again, otherwise this PR is ready to merge.
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by fabpot at 2012-01-25T15:17:59Z
Is it ready to be merged?
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by Tobion at 2012-01-25T15:35:50Z
Yes I think so. He said it's ready to be merged when reviewed.
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by bschussek at 2012-01-26T02:30:36Z
Yes.
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by bschussek at 2012-01-28T12:39:00Z
Fixed outstanding issues. Ready for merge.
ad (1): HTML4 "id" attributes are limited to strings starting with a letter and containing only letters, digits, underscores, hyphens, periods and colons.
ad (2): Property paths contain three special characters needed for correct parsing: left/right bracket and period.
The rules for form naming are:
* Names may start with a letter, a digit or an underscore. Leading digits or underscores will be stripped from the "id" attributes.
* Names must only contain letters, digits, underscores, hyphens and colons.
* Root forms may have an empty name.
Solves #1919 and #3021 on a wider scope.
With implementations of this interface, existing types can be amended.
The Csrf extension, for example, now contains a class FormTypeCsrfExtension
that adds CSRF capabilities to the "form" type.
To register new type extensions in the DIC, tag them with "form.type_extension"
and the name of the extended type as alias.
The extension classes are now the only constructor argument of the FormFactory class. They replace the existing "type loader" classes.
new FormFactory(array(
new CoreExtension($validator, $storage),
new CsrfExtension($csrfProvider),
new DoctrineOrmExtension($em),
));
Together with a few upcoming commits this mechanism will make
* extension of the form framework in bundles and
* usage of the forms outside of Symfony2
much easier.
