I have a form here in which there is a textfield which contains a number. In another part of the form there are rows, which coresponds with the number entered. For example 2 = 2 rows etc.
So my idea is to create one row which is duplicated by a javascript. So i must create a input element which name is in a array like name="input[]" how can i do this in Zend Framework?
The only approach i found for this kind of problem is to use subforms. But every Subform has a explicite name which is not in a array.
To make a rendered Zend_Form respond to client-side changes - as in your example, to allow the user to enter the number of rows he wants - you need both client-side and server-handling.
The best example demonstrating the general idea is from Jeremy Kendall:
jeremykendall.net » Blog Archive » Dynamically Adding Elements to Zend_Form
The upshot is that you have client-side code that adds tracks the number of fields and then a preValidation() method that injects the right number of fields into the $form instance before isValid() gets called.
[As noted in the comments there, this preValidation() processing could just be bundled into isValid() so that the controller remains unchanged.]
Related
I am building a multi-step application form with React. Having first built it with pure internal state I am now in the process of refactoring to Redux using redux-form.
Having used the example here as a basis: http://redux-form.com/5.2.5/#/examples/wizard?_k=oftw7a we have come a good way.
However the problem appears when i have two forms which are supposed to have the same value. During one of the pages i have a name field, that is supposed to be duplicated on the name field of the next page. The opposite should happen if you go back from the last page. Any tips to how this could be achieved?
Using the wizard, you are basically working with the exact same form that's split into multiple pieces. Ultimately it's the same form, because redux-form tracks them by name. It is how the library identifies the pieces of the same form - using the name.
form: 'wizard',
Here you can see that the exact same instance of the form will be shared throughout the pieces. fields work in a similar manner. Each field is defined as part of a form.
As long as you use the same field constants inside the fields object that you pass into the reduxForm function and as long as the value for form is the same, so that they use the same underlying form object, it should work for you just fine.
On one page you should pass in
export default reduxForm({
form: 'wizard',
fields : {
'fieldIWantOnBothPartsOfTheForm',
'someOtherFieldThatShouldOnlyBeHere',
},
...
And then on the other page:
export default reduxForm({
form: 'wizard',
fields : {
'fieldIWantOnBothPartsOfTheForm',
'thirdFieldHere',
},
...
Also, make sure you keep destroyOnUnmount equal to false if you want to navigate back-and-forth.
Hope that helps.
I have a number of form inputs inside an element as they are repeated in other forms, however it does not output the content of the element when i include it in a view. I can place "Die();" within the element and it will show everything up until that point including the inputs within the element. When checking the source code (without the "Die();") it seems to have disregarded everything within the element including formatting such as DIV's.
The only thing i can think is that cakephp does not like you setting a form in a view then including inputs to the form using elements, does any one know if this is the case, or know the actual reason why this is happening?
The answer is i'm an idiot and forgot to echo the element.... yeah.
I've built a Zend_Form_Decorator_Input class which extends Zend_Form_Decorator_Abstract, so that I could customize my form inputs -- works great. I ran into a problem in the decorate class, in trying to get the form name of the element, so as to built a unique id for each field (in case there are multiple forms with identical field names).
There is no method like this: Zend_Form_Element::getForm(); It seems Zend_Form_Decorator_Abstract doesn't have this ability either. Any ideas?
I don't think changing the id from the decorator is the right approach. At the time the decorator is called the element already has been rendered. Thus changing the id would have no effect to the source code. Additionally, as you already have pointed out, the relation between a form and its elements is unidirectional, i.e. (to my best knowledge) there is no direct way to access the form from the element.
So far the bad news.
The good news is, that there actually is a pretty easy solution to your problem: The Zend_Form option elementsBelongTo. It prevents that the same ID is assigned to two form elements that have the same name but belong to different forms:
$form1 = new Zend_Form(array('elementsBelongTo' => 'form1'));
$form1->addElement('Text', 'text1');
$form2 = new Zend_Form(array('elementsBelongTo' => 'form2'));
$form2->addElement('Text', 'text1');
Although both forms have a text field named 'text1', they have different ids: 'form1-text1' and 'form2-text1'. However, there is a major drawback to this: This also changes the name elements in such a way that they are in the format formname[elementname]. Therefore $this->getRequest()->getParam('formname') will return an associative array containing the form elements.
I have a form with collection of subforms - student with different studies - relation manyToOne. I have corrent database schema and entities and form builder works well. I don't know how to append new "study" object. I need to get html tags from somewhere in either cases - when there is at least one "study: object (clone him) or there is no such a one.
Let's assume that study object has 2 fields: name and year. If for a student there is such a record (object) it's first input in generated form has name "student[study][0][name]". And is surrounded by . When I click "Add new study" button I want to duplicate this surrounding div and change id's and name's of html form elements respectively. Is there ready library or method to use?
But there may happen there is no study records so far. So I need to get form from server through ajax call. Unfortunately returned form has inputs with names like "study[name]". Is it possible to render this form similar to first case - I mean "student[study][0][name]". But i'd like to avoid manually generate twig template for form - I prefer
{{ form_widget(form) }}
You should be dealing with data-prototype rather than issuing separate AJAX request. The whole concept of adding/removing subform items is described here:
http://symfony.com/doc/current/reference/forms/types/collection.html#adding-and-removing-items
Obviously, you will need to some JS (jQuery is highly recommended) in order to replicate subform fields.
You should note, however, that data-prototype behaves differently when you initially have empty or non-empty collection. At least I have encountered this weird behavior. As far as I remember, in first your when you say {{ form_rest(form) }} additional DIV is appended with data-prototype attribute consisting of form's HTML. In second case actual HTML (not as an attribute) is appended with ID attribute "form_name_$$name$$" where you need to replace $$name$$ with proper index.
Now, you really should take a look - maybe all this has been fixed in some recent versions but I can't be sure...
Hope this helps a bit...
I'm using sfDoctrineAllowPlugin. I need form which has Twitter's Bootstrap semantics. I looked into template and I found, that there is only $form, which is a <table>. How can I format it in my way? I don't want to use table, rows and cols.
There are plenty of render* functions available to display each item in your form.
renderRow
renderLabel
render
renderError
etc ...
But you can also define a decorator (a custom sfWidgetFormSchemaFormatter) for your form to define the way each item will be display. Check this example of adding * for each required field.