I have got a form which a user can use to create a new store and to edit an existing one. When this form is being used to edit a store there are certain fields that I want the user to see but not edit eg. store_id. I have explored the different Zend_Form_Elements hoping to find some kind of static element but with no luck.
So my question is, how do I display information using Zend_Form that a user can't edit?
Thanks.
readonly alone is not enough, because users will still be able to edit it if they really want. You should use $element->setIgnore(true) that will ensure that Zend_Form_Element won't try to populate the element from POST/GET, and I'd double check that also. You have to make sure the values you are getting into the databases can never contain this element.
Finally, if you would like your element to be displayed in a different way than just with readonly, you can do that by changing the element decorators.
I just managed to work this one out myself. The solution was to change the view helper on the elements to the formNote helper eg. $element->helper = 'formNote'. The result of this was that the value gets displayed as straight text instead of being inside a form element.
Thanks for your answers.
That's very good solution when you don't need to populate the element value when the form is submitted.
It's equivalent solution is to use the Form Element method setAttrib() and disable the form element
$formElement->setAttrib('disable','disable')
which will only freeze the element.
But if you need to populate the field, using the previous solutions you will probably need additional hidden field added, which will pass the value. Developing custom form element will be good style but that's not welcomed by each developer so you can use some tricky way to set a form element as a text only but populate its value. That way is when you create the element as a hidden field, set its value and use the Form Element method setDescription() to set and display the element text value.
$formElement = new Zend_Form_Element_Hidden( 'elName',
array( 'label' => 'elLabel', 'value' => 'elValue' ) );
$formElement->setDescription( 'elValue' );
Then you can render that hidden element and display the value with the
$formElement->getDescription().
$element->setAttrib('readonly', 'true');
http://www.w3.org/TR/html401/interact/forms.html#adef-readonly
According to Amr Mostafa, if you use:
$element->setAttrib('readonly', 'true');
OR
$element->setAttribs(array('disabled' => 'disabled'));
User still send values by POST/GET and they are stored in DB.
The only way for me to don't taking into account the values from POST/GES is:
$element->setIgnore(true)
Example:
$element = new Zend_Form_Element_Text('element');
$element->setIgnore(true);
Related
I got the following issue. A clients wants that the text after checkboxes are links to other pages and thus between ...
I have the following code:
$form['boxes_brands'] = array(
'#type'=>'checkboxes',
'#title'=>'<div id="title-container">Merken</div>',
'#options'=>$brandArr,
'#default_value'=>$_SESSION['filter_brands_cat'],
);
=> $brandArr is an array of brands.
I looked in the Form Api of Drupal but I did not find an option to do this. I could alter the values in $brandArr but of course that changes the value of the value attribuut of the input object too.
Using the prefix and suffix options won't do it either because I don't want the checkboxes in the tags too.
Is there a clean way to do this?
Thanks!
If you created the form with the UI, then you should be able to specify something like this in as the options and links would be rendered as links:
google|This is a link to google
yahoo|Yahoo
bing|Bing!
See example:
Otherwise, you should be able to modify the $brandArr accordingly to create links in the label. Doing this should NOT change the value of the attribute as it should be a $value->$label associative array. You just need to change the $label not the $value.
When you embed a form in Symfony, a label for the embedded form is injected into the parent form. For example: If I have a PersonForm and add this code $this->embedForm('Address', $addressForm), my PersonForm will now have an 'Address' label within it, in addition to the labels for the fields that make up the AddressForm. I'd like to keep the labels for the individual fields, but get rid of the 'Address' label, thereby making it appear that the two forms are really one.
It's possible to override the form template and manually iterate over the form elements and echo them one by one, but I run into this situation frequently and I'd prefer to have Symfony handle this automatically.
The following code will allow you to set the label to another an empty string but I suspect it would still appear anyway.
$this->embedForm('Address', $addressForm)
$this->widgetSchema['Address']->setLabel('');
however I suspect the best thing to use is to look at point 6 (embedMergeForm) on this page and use that http://itsmajax.com/2011/01/29/6-things-to-know-about-embedded-forms-in-symfony/
Given your situation, iterating manually over the widgets is the only option. The other option is extending sfWidgetFormSchemaFormatter, but that won't allow hiding a label for an embedded form, while at the same time not hiding it for any other widget.
If you do run into this situation often, you could consider creating a partial just for rendering your form in this specific way.
Here is a simple way of disabling all labels. Add this method to BaseForm if you do it frequently.
public function disableLabels()
{
$fields = $this->getWidgetSchema()->getFields();
$this->getWidgetSchema()->setLabels(array_combine(array_keys($fields), array_fill(0, count($fields), false)));
}
If you only want to disable labels in the embedded form, disable them before embedding:
$form = new FormToEmbed();
$form->disableLabels();
$parent->embedForm('child', $form);
I subclass Zend_Form to allow re-use as I describe in my other SO question. It's working very well, except for one issue that I found. In my view script I use this code to render the label for fields:
echo $this->formLabel($this->element->getFullyQualifiedName(),
$this->element->getLabel());
The rendered label has the original element id as the value in the for attribute rather than the new, suffixed, element id. Is there a bug in the Zend code, am I missing a step or doing something incorrectly?
I think the reason is that you use formLabel view helper independently. As a result, the helper is not aware of any attributes that you specified for your input text field. So, you should provide these attributes to the formLabel. For example you could do the following:
echo $this->formLabel(
$this->element->getFullyQualifiedName(),
$this->element->getLabel(),
$this->element->getAttribs()
);
The above code should produce for tag that matches your input elements id. Otherwise, the for tag will be set to the elements name.
Im looking for a way to have a form in cakephp that the user can add and remove form fields before submitting, After having a look around and asking on the cake IRC the answer seems to be to use Jquery but after hours of looking around i cannot work out how to do it.
The one example i have of this in cake i found at - http://www.mail-archive.com/cake-php#googlegroups.com/msg61061.html but after my best efforts i cannot get this code to work correctly ( i think its calling controllers / models that the doesn't list in the example)
I also found a straight jquery example (http://mohdshaiful.wordpress.com/2007/05/31/form-elements-generation-using-jquery/) which does what i would like my form to do but i cannot work out how to use the cakephp form helper with it to get it working correctly and to get the naming correct. (obviously the $form helper is php so i cant generate anything with that after the browser has loaded).
I an new to cake and have never used jQuery and i am absolutely stumped with how to do this so if anyone has a cakephp example they have working or can point me in the right direction of what i need to complete this it would be very much appreciated.
Thanks in advance
I would take the straight jquery route, personally. I suppose you could have PHP generate the code for jquery to insert (that way you could use the form helper), but it adds complexity without gaining anything.
Since the form helper just generates html, take a look at the html you want generated. Suppose you want something to "add another field", that when clicked, will add another field in the html. Your html to be added will be something like:
<input type="text" name="data[User][field][0]" />
Now, to use jquery to insert it, I'd do something like binding the function add_field to the click event on the link.
$(document).ready( function() {
$("#link_id").click( 'add_field' );
var field_count = 1;
} );
function add_field()
{
var f = $("#div_addfield");
f.append( '<input type="text" name="data[User][field][' + field_count + ']" />' );
field_count++;
}
Of course, if a user leaves this page w/o submitting and returns, they lose their progress, but I think this is about the basics of what you're trying to accomplish.
This was my approach to remove elements:
In the view, I had this:
echo $form->input('extrapicture1uploaddeleted', array('value' => 0));
The logic I followed was that value 0 meant, not deleted yet, and value 1 meant deleted, following a boolean logic.
That was a regular input element but with CSS I used the 'display: none' property because I did not want users to see that in the form. Then what I did was that then users clicked the "Delete" button to remove an input element to upload a picture, there was a confirmation message, and when confirming, the value of the input element hidden with CSS would change from 0 to 1:
$("#deleteextrapicture1").click(
function() {
if (confirm('Do you want to delete this picture?')) {
$('#extrapicture1upload').hide();
// This is for an input element that contains a boolean value where 0 means not deleted, and 1 means deleted.
$('#DealExtrapicture1uploaddeleted').attr('value', '1');
}
// This is used so that the link does not attempt to take users to another URL when clicked.
return false;
}
);
In the controller, the condition $this->data['Deal']['extrapicture1uploaddeleted']!='1' means that extra picture 1 has not been deleted (deleting the upload button with JavaScript). $this->data['Deal']['extrapicture1uploaddeleted']=='1' means that the picture was deleted.
I tried to use an input hidden element and change its value with JavaScript the way I explained above, but I was getting a blackhole error from CakePHP Security. Apparently it was not allowing me to change the value of input elements with JavaScript and then submit the form. But when I used regular input elements (not hidden), I could change their values with JavaScript and submit the form without problems. My approach was to use regular input elements and hide them with CSS, since using input hidden elements was throwing the blackhole error when changing their values with JavaScript and then submitting the form.
Hopefully the way I did it could give some light as a possible approach to remove form fields in CakePHP using JavaScript.
If I build a form:
$search_words = new Zend_Form_Element_Text('text');
$search_words->setRequired(true)->setDecorators(array(array('ViewHelper')));
$form->addElement($search_words);
$go = new Zend_Form_Element_Submit('gogogo');
$go->setDecorators(array(array('ViewHelper')))
->setIgnore(true);
$form->addElement($go);
With method GET.
I will see in the URL gogogo=gogogo. If I was writing the markup myself, I simply wouldn't give the submit any [name] attribute and that would have solved that. Trying to set the name of a submit to '' won't work (either throws an exception or is being ignored, depends on the way you do it).
Any (built in) ideas?
Another possibility would be to disable the submit button before the form is submitted:
$go->setDecorators(array(array('ViewHelper')))
->setIgnore(true)
->setAttrib('onclick', 'this.disabled = true');
This way, the value of the submit button will be ignored upon submitting the form.
There are a few possible options:
Use a custom decorator to build the markup, so a name attribute is not specified
Use a string replacement function on the markup returned by Zend_Form's render methods, to remove the attribute
What I often do, as follows
I usually add a custom route so that either of the following is valid:
domain.tld/search/keyword
domain.tld/search?q=keyword
Then you can use javascript to redirect to the cleaner form of the URL, taking care to urlencode the keyword field
Most of your users will see the cleaner URL this way.