I have a problem with my front end admin update page. How can I retrieve values from a SiteTree page and populate it into a custom form? Is the setValue($values) function the only way? If yes, which is the best method to get the page variable?
I am using this:
$evens = Versioned::get_by_stage('PageCalendrierEvenement', 'Stage')->byID($evenID);
I'm getting values from an ID of a draft page. After I get variables and values like that:
$field = new TextField('Titre', 'Titre');
$field->setValue($evens->Titre);
or
new TextField('Titre','Titre', $evens->Titre);
Which is the better solution?
The solution is 2 part:
Use TextField::create($constructor, $args) instead of new (optional, but not doing so is a pet hate of mine).
Set all fields at once: http://api.silverstripe.org/3.1/class-Form.html#_loadDataFrom
Related
I need your help. I have an Active Form in my Yii2 application and when I submit my form it shows values (no matter empty or not) of every field of the form to the GET-string so it looks like
domain.com/index?ItemSearch%5Brooms_arr%5D=&ItemSearch%5Bprice_type%5D=& ItemSearch%5Bprice_type%5D=0&ItemSearch%5Barea_from%5D=&ItemSearch%5Barea_to%5D=&... etc.
I need to have cleaner query string which will contain only non-empty params?
For example domain.com/index?rooms_arr=12&price_type=normal.
Please suggest me what is the best way to do this?
This is not the yii2 problem. It is a native html form works like this. If you really do want to exclude all not filled inputs from the query string you could filter all this params via jQuery and set them to disable state, here is the code
$('form').submit(function(e){
var emptyinputs = $(this).find('input').filter(function(){
return !$.trim(this.value).length; // get all empty fields
}).prop('disabled',true);
});
I have a page where I need to display testimonials, In that page document type I have a field to assign testimonials by using page selection, so It will save the GUID of selected testimonial in the database,
I have used following code to display the description of Testimonial, But is there any other way to get the document fileds by passing the GUID,
One option I can use is write a custom macro.
{% Documents["/Page-Resource/Testimonial/Testimonial"].getValue("Description") #%}
Note: I have used the text/xml type transformation
Well it's not that easy but there is one way and that is to use loops:
r = ""; foreach (i in CMSContext.Current.Documents) {if(i.NodeGUID == "a88f82be-bb76-4b82-8faf-5253209f0f75"){r = i}}; r.Description
Notes:
Use NodeGUID or DocumentGUID based on what you store in your custom field.
Replace the hardcoded guid with something like CMSContext.Current.CurrentDocument.YourDescriptionFieldWithGuid
See the documentation if you have any doubts about K# syntax
When I render a form, form Filed Name is given as an array. For example: search[item], search[keyword] etc. where search is name of the form.
I'm not great on working with forms but I think, the name should be rendered as simply, name="item" or name="keyword".
I've looked at all the documentation, customizing form rendering topic etc. but I can't find any way to change the default behaviour of Symfony form to render form filed name from 'search[item]' to 'item'.
This way, when I ask for the POST data, I can ask simply $this->getRequest()->request->get('item'), as I have to deal with lots of individual parameters.
Help would be great i) To figure out how to achieve what I want. ii) to let me know, why the name is rendered this way. is this the good practice?
Rather than accessing parameters from the Request object, you can bind the Request object to the form.
For example, in your controller method that you post your form to:
namespace Acme\Controller;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Acme\Form\MyFormClass;
class MyFormController extends Controller
{
receiveFormAction(Request $request)
{
$form = new MyFormClass();
// you can specify that a route only accepts a post
// request in the routing definition
if ($request->isMethod('POST')) {
// this populates the form object with the data
// from the form submission
$form->bind($request);
if ( ! $form->isValid()) {
throw new \Exception('Invalid form');
}
// an array of the data the format you require
$data = $form->getData();
$data['item'];
$data['keyword'];
// etc.
}
}
}
The above is the way you should be handling forms in Symfony 2, and is how you can leverage the power that the forms component gives you, with validation etc.
Symfony supports multiple forms on a page. They might be instances of the same form or have similar field names. Having the fields for each form all together in an array makes this easy to do.
I need to set the value of a symfony2 form element.
I use a doctrine2 entity, a Symfony\Component\Form\AbstractType and the createForm() method inside my Controllers Action.
$saleDataForm = $this->createForm(new SaleType(), $sale);
Now, how do i get an element from that form, and how can i set it's value?
I want to do something like this, but it doesn't work:
$saleDataForm->get('image')->setValue('someimapge.jpg');
FYI: I need to do this to render the field correctly (using this approach, my image field is always empty and i need to set it to the content of imagePath to present a preview of an uploaded image)
For a more exact answer you should include the entities you use in this form so we can see the getters and setters. But based on your question this should work:
Inside the controller do this:
$saleDataForm->getData()->getImage()->setValue('someimage.jpg');
$form->setData($form->getData());
This is if the form is already created so:
$saleDataForm = $this->createForm(new SaleType(), $sale);
$saleDataForm->getData()->getImage()->setValue('someimage.jpg');
$form->setData($form->getData());
To get the data use this:
$saleDataForm->getData()->getImage()->getValue();
thanks MatsRietdijk, you helped me, but I had to change code to this
$form = $this->createForm(new SaleType(), $sale);
$form->getData()->setImage('someimage.jpg');
$form->setData($form->getData());
If you try fill file upload field - it's wrong idea. Ask yourself: what data should be there? If an user upload an image, then in this field will be a path to the image on his local system. But then after file is uploaded you change its name and location, so you don't need info about this path and you just don't keep it.
The appropriate way should be left empty upload field below (or above, or wherever you have it ;) ) image. Then after form is submitted and if the field is not empty you should change edited image.
I don't really know how to word the title well, but here's my issue. I decided instead of having 25 controllers to handle pages, I have one PageController with a viewAction that takes in a :page parameter - for example, http://localhost/website/page/about-us would direct to PageController::viewAction() with a parameter of page = about-us. All of the pages are stored in a templates folder, so the viewrenderer is set to render application\templates\default\about-us.phtml.
I did this so I can consolidate and it seemed like a better approach. My question is the following: lets say when the page request is contact-us, I would need a Zend_Form to be used within the contact page. So, I would need a way within PageController::viewAction() to recognize that the page needs to have a form built, build the form, and also upon submission the need to process it (maybe this should be handled in an abstract process method - not sure).
I have no idea how to implement this. I thought maybe I can store a column with the name of a form and a connecting page identifier. Even better, create a one-to-many page to forms, and then in the submission loop through the forms and check if submitted and if so then process it (maybe there is a isSubmitted() method within zend_form. I really don't know how to handle this, and am looking for any help i can get.
Thanks!
Here is something that came to mind that may work or help point you in a direction that works for you.
This may only work well assuming you were to have no more than one form per page, if you need more than one form on a page, you would have to do something beyond this automatic form handling.
Create a standard location for forms that are attached to pages (e.g. application/forms/page). This is where the automatic forms associated with pages will be kept.
In your viewAction, you could take advantage of the autoloader to see if a form for that page exists. For example:
$page = $this->getParam('page');
$page = ucfirst(preg_replace('/-(\w)/ie', "strtoupper('$1')", $page)); // contact-us -> ContactUs
$class = 'Application_Form_Page_' . $page;
// class_exists will invoke the autoloader to map a class to a file
if (class_exists($class)) {
// a form is defined for this page
$form = new $class();
// check if form was posted
if ($this->getRequest()->isPost()) {
if ($form->isValid($this->getRequest()->getPost()) {
// form is valid - determine how to process it
}
}
// assign the form to the view
$this->view->pageForm = $form;
}
All this really leaves out is the action you take to process a specific form. Since the contact form will likely generate an email, and another form may insert data into a database, you will need some sort of callback system or perhaps another class that can be mapped automatically which contains the form processor code.
Anyway something along those lines is what came to mind first, I hope that helps give you some more ideas.