I am working on Azure C# project. There is webrole with web form collecting customer’s information.
Depending on the information, they submit I need to create new custom web form for each one of them.
How can I generate new web form with custom web controls inside same site with code? I would prefer not create different site for each customer.
Any ideas appreciated!
You don't have to create a custom web form for each customer, you can have it all in on dynamic form and draw the input controls according to the customer.
You will have to have a form a form or a database table to configure the input needed for each customer which will be used in drawing the form.
ex:
You can have a table named: CustomerAttibute with the following columns
Customer ID
Attribute Name
Attribute Type (Number, text, boolean, ...)
Is Required
Validation Reg Expression
In the web form, you will read the customer ID and retrieve the attributes related to that customer, and use these attributes to draw the form, ex: an attribute of type text will be rendered as a textbox but an attribute of type boolean will be rendered as a checkbox
Capture the values from the user and insert it into another table, ex: CustomerAttributeValue which will have the attribute ID and attribute value, the value will be string to accommodate for any type
Related
i need my app require(true/false) a title(TextType) based on what select from 'event' field(ChoiceType) in a single form.
So, how can i modify my 'title' base on what user select on 'event' dynamically?
How to dynamically Generate Forms Based on user Data
https://symfony.com/doc/current/form/dynamic_form_modification.html#how-to-dynamically-generate-forms-based-on-user-data
Add the EventListener on your ChoiceType.
We have a custom field on our Customer form "client_type" and would like to be able to reference the same field's values on the Customer's Contacts as well on the Contact form. The data is populated for all Customers currently, though when creating the custom field on the Contact form and selecting
SOURCE LIST -> Parent & SOURCE FROM -> client_type the Contact records do not have any data populated. Tried waiting to see if this was a caching issue as we saw with another modification in NS we did recently and there was no solution.
I have an object displaying within a form, a hidden field being related to its PK (field id).
When I create a new object, the field has a null value. Submitting the form, the object is inserted into the DB and it now has an ID, but the field in the page still has a null value.
If a reload the page, now the ID is indeed set in the hidden field.
In my opinion, this is due to the form processing of Symfony: when a create an object, it creates a form, with this form valid the object is saved but the form still uses the data before it was saved.
The question is: how to get the auto-incremented key in the form up-to-date? Shouldn't the form only have a reference to the object? Can't the value be updated?
make sur that you call $entityManager->flush() method after insert and that you bind your form whene you have same data in your request object
$form->submit($request->request->get($form->getName()));
You should have an Entity assigned to your Form by FormFactory. Then Symfony will fill that Entity with submitted values. What's left is only persist the Entity and flush to database.
You can find steb-by-step form submission in Symfony Cookbook
I'm trying to come up with a way to create a 'base form' that contains fields used on every entity, i.e. id, created_at, updated_at, etc.
I want to either extend the base form when I create a new form or easily include it in each new form I make. I can't find much documentation on it, is this a common thing to do?
I have two entities: product and category (Symfony 2.3).
I want to create a form in which an user can choose a product by first selecting the category. A user selects the category by clicking on image, then I want to set the image's value into a hidden input, but I don't see how can I change a foreign entity choice list to a hidden input (http://symfony.com/doc/current/reference/forms/types/entity.html).
How can I accomplish this? (how to change form input to hidden)
If I set cascade validation to true, will it for example check if a category really exist. (To prevent putting products with non-existing category from malicious users) ?
Part 1
To do this you need to use a data transformer to do two things:
transform an entity into an identifier that is either a string or integer so a form can render it as a hidden field.
transform the string or integer identifier into the entity when the form is submitted so that the parent entity can be saved with the correct relationship
The symfony docs I linked to above (here too) actually walk though an entire example of using a data transformer with a form.
As a shameless plug (because I believe it is helpful) I have written a little tutorial on using a data transformer for a hidden field with an entity id: http://lrotherfield.com/blog/symfony2-forms-entity-as-hidden-field/
Part 2
If you are using the data transformer then you don't need to worry about malicious users. The data transformer will fail because it will not be able to reverse transform the category from the fake id. In my tutorial the transformer will throw a Symfony\Component\Form\Exception\TransformationFailedException exception.
You can also write a validator (potentially using a call back) if you wanted that checks that the submitted category is real if you want an error to show in the form. Doctrine wont allow you to persist a fake category relationship as the foreign key constraint will fail.