I am building a web application using Symfony 1.4 and Doctrine for a school and I want to make a very simple form to add a course to a student.
The main problem I have is that in the drop down list I only want to show the courses in which the student is currently not enrolled.
I already have a function in the model (in Student.class.php) which returns all the courses in which the student is not enrolled but the problem is I don't know how to pass the student to the configure() of the form. I have tried several options like passing it with the constructor of the form to a global variable or a special set method but none of them have worked.
Is there any form to pass the student to the configure() method?
Thanks!
This should work for you...
In your action:
$this->form = new StudentCourseForm(array(), array('student_id' => $student_id));
In the form class:
$this->getOption('student_id');
Related
Simple problem but can't find a solution: I have a Thymeleaf form used to add a new object, say of a Book class. It works perfectly well and I only need that particular form for adding new objects, not editing the existing ones. The question is: how can I put several objects of the Book class in the same single form? So, purely for convenience, instead of filling form for a single book and clicking Send you can fill form for several books at once and only then click Send, have them all inserted into the database (in whatever order) and also have the option to fill the form partially (e.g. the form has room for 5 books but it will also accept 1, 2, 3 or 4 and you can leave the rest blank).
Edit: I've tried passing a list of object to the Thymeleaf template with the form bound to the whole list and iteration inside, but Thymeleaf throws BingingResultError upon rendering it.
You need to use a wrapper object to realize what you want.
Something like:
public class BooksCreationDto {
private List<Book> books;
// default and parameterized constructor
public void addBook(Book book) {
this.books.add(book);
}
// getter and setter
}
Then you need to pass this object as a model attribute in your controller:
BooksCreationDto booksForm = new BooksCreationDto();
model.addAttribute("form", booksForm);
bind fields using index property
th:field="*{books[__${itemStat.index}__].title}"
and get back the result with
#ModelAttribute BooksCreationDto form
in your controller.
For a complete and detailled explaination visit: https://www.baeldung.com/thymeleaf-list
I want to generate and persit multiple objects with only one form.
In My Form I have fields für Model Object House and fields for Model People, First 3 are for House and last 3 are for People.
Wenn I submit the form I want to create a Object for House and A Object for People. And the People should get the Relation to the house.
I tried this:
public function createAction(\Blubb\Blubb\Domain\Model\House $newHouse, \Blubb\Blubb\Domain\Model\People $newPeople) {
$this->houseRepository->add($newHouse);
$this->peopleRepository->add($newPeople);
$this->redirect('list');
}
Form looks like this:
how can I select which elements are for the House and which for the People?
Alternatively i tried set another form where i specified the name of Input like this:
name="house[housenr]" --> Then I got this error: Required argument "newHouse" is not set.
Remove params from your createAction() so you can use methods
$this->request->hasArgument('foo')
$this->request->getArgument('foo')
for custom collecting fields.
Assuming i got a table called Countries and using Entity Framework, i want to know how could i populate the available countries (listed in the table countries) to view as drop down list and return the value to HTTPPost Controller
i got
public ActionResult SignUp()
i think the populate code should be here but i not sure
how to retrieve from entity framework and populate into view
and
[httpPost]
public ActionResult SignUp()
i want to read the user selected value and i think is
int value = form["DropDownListName"].SelectedIndex + 1;
can anyone please guide me on this with some hint or example , please ? Thx a lot =D
To be honest, you're not really working in an MVC pattern here. Don't put UI construction logic in your constructor.
Rather, expose the ID that you want to bind to the list via a model that you pass to a View() method in your constructor.
In your view, use the name of that property as the Name of a Drop-down and create a helper class to generate the list of values.
I'd give you a more specific example, but I'm in the cinema with my iPad, so a bit stuck for access to Visual Studio at the moment!
I am using Symfony 1.4 to create project, and i need to create dynamic forms depending upon the question set type coming from database. i have used Symfony forms in rest of my project, but in this case using symfony forms seems to be tough, as i need dynamic form.
can it be safe to use normal HTML forms..in symfony project, or it is advisable to use Symfony forms. so need your help.
You can use html forms, but it would bypass symfony's form validation system.
You can still build dynamic forms by creating and adding input widgets to the current form, or a new form inside an action. You can then echo the form in the template and the dynamically generated fields will be part of the form as well.
If you start with a MyForm.class.php in the lib/forms, make sure to add:
$this->validatorSchema->setOption('allow_extra_fields', true);
Otherwise, you will automatically get validation errors. If you want to add fields to a form in an action you would do something like this:
$this->form = new MyForm();
$widgetSchema = $this->form->getWidgetSchema();
$widgetSchema['add_field'] = new sfWidgetFormInputText();
When you echo your form the 'add_field' input will be added to it.
It would help to have more information about what you're doing, but here's one way in which forms can be dynamic in Symfony. This code creates widgets and validators for a survey dynamically based on the "type" of a question:
class SurveyAnswerForm extends BaseSurveyAnswerForm
{
public function configure()
{
$question = $this->object->Question;
$method = sprintf('createWidgetAndValidatorFor%sInputType', $question->type);
$this->$method($question);
$this->getWidget('value')->setOption('label', $question->question);
$this->getValidator('value')->setOption('required', $question->required);
}
protected function createWidgetAndValidatorForTextFieldInputType(Question $question)
{
$this->setWidget('value', new sfWidgetFormInputText());
$this->setValidator('value', new sfValidatorString());
}
protected function createWidgetAndValidatorForTextAreaInputType(Question $question)
{
$this->setWidget('value', new wfWidgetFormTextareaAutosize());
$this->setValidator('value', new sfValidatorString());
}
//etc. for as many types as you require
}
Note: while this answer is code from one of my projects, it was heavily influenced by this answer over on SymfonyExperts.
I'm trying to build a form using the Zend_Form component, but the number of elements varies. The information for each Zend_Form element is stored in a database (name, options, validators, filters, etc.).
The application I'm working on consists of building surveys which contain a varying number of questions. Each question is associated with different arrays of answers. Ultimately my goal is to build arrays of radio/checkbox buttons, dynamically, server-side.
I'm looking for a pretty way to generate my form, but I'm not sure of the best way to load the model within the form. Should the model be loaded in the controller then passed (somehow, via a parameter?) directly to the form, or is it better to load the model within the Form init() method? Where's the best place to put the logic, should it be within the form class, or within the controller, or within the model?
My idea is to fetch form element properties (name, rules, filters, etc.) in the database, then iterate and finally render the form. What do you think of this approach? Ultimately, elements will be dynamically added (client-side), this time, using AJAX and a JavaScript library (such as jQuery).
Here are a couple useful links I found via Google, but I think they all answer a slightly different question than mine:
On building dynamic forms, server side:
http://framework.zend.com/wiki/display/ZFPROP/Zend_Form+generation+from+models+-+Jani+Hartikainen
http://weierophinney.net/matthew/archives/200-Using-Zend_Form-in-Your-Models.html
http://codeutopia.net/blog/2009/01/07/another-idea-for-using-models-with-forms/
On building dynamic forms, client side, with AJAX processing:
http://www.jeremykendall.net/2009/01/19/dynamically-adding-elements-to-zend-form/
I think I found a possible solution, it involves passing an array of Zend Form elements to the Zend Form::__construct() method. The constructor takes an array of options, one of them is called "elements". Have a look at the source code within the Zend Framework library.
I coded a new private method within the controller, called buildSurveyForm(). Note : the object, passed as a parameter, is built from a huge SQL query with half a dozen JOIN statements, fetching data from a few tables (surveys, questions, answers, etc.) within the database. One of the public attributes for this class consists of an array of questions, stored as objects (with public methods/attributes as well, etc.). Same for answers. The code for building these classes is pretty trivial and out of topic here.
Here's the code within the survey controller. I copy/pasted and edited/dropped a few lines to make it a lot clearer :
private function buildSurveyForm(MyApp_Object_Survey $survey)
{
foreach ($survey->questions as $question)
{
$element = new Zend_Form_Element_MultiCheckbox($question->order);
$element->addMultiOptions($question->getAnswersLabels());
$element->setName($question->order);
$element->setLabel($question->title);
$elements[] = $element;
}
// Here's the trick :
$formOptions = array('elements' => $elements);
$surveyForm = new MyApp_Survey_Form($formOptions);
$urlHelper = $this->_helper->getHelper('url');
$surveyForm->setAction($urlHelper->url(array(
'controller' => 'survey',
'action' => 'vote'),
'default'
));
$surveyForm->setMethod('post');
$this->_forms['survey'] = $surveyForm;
return $this->_forms['survey'];
}
The MyApp Survey Form class only contains a Submit button within the init() method. The dynamically generated elements with the code above are added BEFORE this submit button (which is unexpected, but useful). This class simply extends Zend_Form.
Then, within survey controller / view action :
public function viewAction()
{
$surveyModel = $this->_model['survey'];
$survey = $surveyModel->getFullSurvey($this->_getParam('id'));
$survey = new MyApp_Object_Survey($survey);
// Calls above private method :
$surveyForm = $this->buildSurveyForm($survey);
$this->view->assign(array(
'surveyForm' => $surveyForm,
));
}
Adding filters, validators and decorators to form elements is now trivial. My proposal is a bit dirty, but I think it gets the job done. I will add a new proposal if I find something more elegant. Feel free to post different answers/solutions.
You could extend Zend_Form.
Zend form is not good place for logic, only form representation.
So, Load all needed elements using model in controller and pass them to the form in contructor as parameters.