I'm creating a web app with symfony. I'm currently building the forms and as I've never used the ManyToMany relation I'm having some problem with retrieving the information.
The form I'm working with is this one:
The point is that when I'm retrieving the information of the array in the twig template, the data property inside the array shows empty, when there is Alumne's entities created. Let me show you.
Twig template (create page):
As you can see, what I pretend is to retrieve the info of every Alumne entity inside the array.
What I get doing this is:
The alumnes field is completly empty. But if I change the form Builder to this:
(I have also changed a little bit the twig template to make it more readable)
It works!
And as you can see there is an Alumne created.
The point is, as you can see, the select and option tag it creates is kinda ugly, I want to custom so it can fit the rest of the forms. So that's why I need a CollectionType in the builder and I don't know what I'm doing wrong. Also if I check the dump(form.alumnes.vars.data) it shows empty.
The issue here is, that you use the CollectionType instead of the EntityType. To load data from the Database into a form, you should use the EntityType https://symfony.com/doc/current/reference/forms/types/entity.html
If you leave the type out, Symfony will try to guess what form element to use and will (correctly) guess the EntityType
Related
I have a simple form that's in a dialog fragment used to submitting two fields for log-in auth.
For simplicity I was hoping to not have to use data binding, but rather use some method to gather all data inside my sap.ui.layout.form.SimpleForm.
I added a name property to each input element which says in the docs it is " Defines the name of the control for the purposes of form submission."
https://openui5.hana.ondemand.com/#/api/sap.m.InputBase/controlProperties#name
However hard as I try to find there doesn't seem to be any getFormData methods.
All SO questions and guides either use data binding to a model, or hard-code references to the individual input controls with .getValue() methods.
And looking further into the form API, there doesn't seem to be a Submit event either.
Given an arbitrary form, what would be the best way to gather all submission values without hard-coded references or data-binding?
Would a method that walks though all the children elements of a form looking for all submission values work? I think it might, but there are more submission input types then just the input component.
You can get the value of the fields by directly using;
var oField = sap.ui.getCore().byId('IdOfTheFieldAtTheDialog');
var sValue = oField.getValue();
But it's always better and convenient to use data binding which keep things neat.
And If I assume that you have the id of parent form container, you can iterate over the items and get the sap.m.Input elements in it without knowing the IDs of the individual inputs, and you may check the name property of the fields if you want. Check this snippet;
https://jsfiddle.net/hdereli/9e92osfk/3/
I am trying to repopulate fields on a HTML form with a users data they initially filled out when they created an account for the first time in Meteor to allow them to edit information. The form contains various inputs, option lists and check boxes. The data stores on in the collection with no issues. I have a field in the user profile called profComp which is either true of false dependent on if the form has been filled out before. I have tried to add an if/else statement on the route -
Router.route("/edit_dashboard", function(){
if(Meteor.user().profile.profComp)
{
this.render("change_edit_dashboard");
}
else
{
this.render('edit_dashboard');
}
The change_edit_dashboard is a copy of the html form the user initially filled out and I have added a helper to the change_edit_dashboard template to retrieve the users info document from the collection.
Template.change_edit_dashboard.helpers({
formData: function()
{
return Base.findOne({_id: Session.get('baseId')})
}
});
And attempted to call context of document using spacebars {{#with}} in change_edit_dashboard
<template name="change_edit_dashboard">
{{#with formData}}
----> form code <------
{{/with}}
</template>
However a few strange things seem to be happening -
The change_edit_dahsboard template is not rendering at all. The formData helper doesn't seem to be getting called as I am not getting a test console.log() I wrote showing in the console.
With the addition of this code it seems to breaking all functionality of other templates. I have placed test console.log() in various template events and they do not seem to be getting called
Can anyone advise on where I may be going wrong? Thanks
As you did not give us your form code, I'll just assume you correctly gave <input name="myInput" value=myValueHelper> attributes to your inputs and go on.
From what I see, you are trying to get data from one of the most error-prone objects in Meteor, Meteor.users when one wants to retrieve data from a collection object. You can find below some possibilities regarding your issue:
Meteor.user().profile.profComp does not exist. As you are manipulating Meteor.users collection, you have to take a few extra-step in order to access data stored there. For example, if I have a mySuperField field at the root of my Meteor.users model, I have to publish it server-side in order to subscribe and retrieve it on the client. You can quickly check it by calling Meteor.user() and see wether it's present or not.
If you have a blank screen with no error server-side, it's often because you broke your templating load. Check error messages at the top of your web-console and make sure you did not put a template helper in a file executed on the server or before your .html file was loaded by Meteor.
I'm not exactly sure why you need 2 edit templates but if it's just a matter of new vs edit, you should consider using autoform with simple-schema as it will greatly help you through your forms. You can find the links below.
https://github.com/aldeed/meteor-simple-schema
https://github.com/aldeed/meteor-autoform
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'm working with Symfony2 to set up a form, where a Shelf-Entity can be edited.
A shelf contains a collection of Readable-Entities (e.g. Book, Magazine, etc. - all inherit from Readable).
The user has the possibility to add more Readable-Entities (the form is extended via JavaScript) and from a dropdown he can select the type of Readable he wants to add. Depending on the selected dropdown-value, different form fields are rendered. So far so good.
Now, when the form is submitted to the server, depending on the Readable-Type the user selected in the form, a different entity-type should be instantiated.
If I don't do anything, Symfony just instantiates the base class Readable (and not Book, Magazine, etc.).
How can I tell Symfony to instantiate the correct type of Readable depending on the selected value from the dropdown?
I tried with FormEvent-Listeners, but:
in PRE_SUBMIT I only get an array containing the "raw" form data with $event->getData(), i.e. no entities have been instatiated so far. However, at this stage, I still have access to value of the dropdown.
in SUBMIT the form data was already assigned to the appropriate entities. Also the new Readable was already instatiated with the base Readable-Class. But now, I cannot access anymore the value from the dropdown.
What is the correct way to do this?
EDIT
Added a minimal Code-Example for the Shelf FormType:
https://gist.github.com/anonymous/401495b701982adafb96
Code for infinite_form_polycollection:
https://gist.github.com/anonymous/b5f0ed10ca9c52177f01
Have you tried looking at this part of the doc? As "embedding a form" seems to fit your needs.
It seems that there was something wrong with the PHP-Files of the PolyCollection in the vendor-directory, because after removing everything related to the Infinite Form Bundle from the vendor-dir and reinstalling it with composer, everything is working now. But thanks for your efforts YoannCh
OK, let's start with the Html.Textbox. It is supposed to contain text read from a file. The file read is based on what the user picks from a dropdown list.
The first time it is fine. The user picks a value from the dropdown list. The controller uses that value to read some text from a file, and returns that text to the view via the view model. Everything is fine.
THen the user picks another value from the dropdown list. The controller reads a new value from a file and returns it via the view model. Debugging to the LINE BEFORE THE HTML.TEXTBOX is set in the view shows that the model contains the correct value. However, the textbox itself still shows the PREVIOUS value when the page displays!
If I switch from Html.Textbox to a plain input, type="text" html control, everything works fine. That's not so hard, but the same thing happens with my dropdown list -- I can't set the selected value in code. It always reverts to whatever was chosen last. Rendering a "select" tag with a dynamically-generated option list is a pain. I would love to be able to use Html.Dropdown.
What am I missing here?? This is such a simple thing in webforms!
When you post a form, the values that are posted are put into ModelState. When the HtmlHelper renders an html iunput element, e.g. Html.TextBoxFor(x => x.FirstName), it'll search various locations to get the value for the textbox... ModelState is before ViewData.Model in the list of locations. So there for, the previously posted value will appear in your textbox.
To fix this you could clear the ModelState value or update the ModelState value. BUT I would kinda view that as a hacky way of getting around the problem.
The real issue has more to do with the flow of the posts and requests. I would personally look into that and maybe implement the PRG (Post Redirect Get) pattern.
HTHs,
Charles
Following on from what Charles/Charlino said:
Model binding updates the ModelState object, which contains validation and model binding errors that are collected during model binding.
Inside an action method, model binding has occurred already to update the model, and generated the ModelState object. If you now update the value on the model inside the action, you must also manually update the model state (since the helpers use it to generate their HTML). Below is an example:
model.CaptchaIsValid = CaptchaService.ValidateAndExpireCaptcha(model.CaptchaAttempt);
if (!model.CaptchaIsValid)
{
ModelState.AddModelError("CaptchaAttempt", "Incorrect - please try again");
}
// I'll clear the value on each attempt, to force them to re-enter a CAPTCHA.
model.CaptchaAttempt = string.Empty;
// Since I updated the model, I must create a new ValueProvider result...
ValueProviderResult clearedValue = new ValueProviderResult(
model.CaptchaAttempt,
model.CaptchaAttempt,
CultureInfo.CurrentCulture);
// ... and update the ModelState's value.
ModelState.SetModelValue("CaptchaAttempt", clearedValue);
The biggest issue I see here is that you are trying to do a postback within MVC. That model is really not supported, and is actually way more trouble than it is worth (as it seems you are finding out). I would recommend using Ajax to update the contents of the dropdown dynamically.