I'm wondering how to load data into a form. I have already a store for the appropriate grid but the model is different. I'm using the MVC approach. So basicly I need to load the data into the form when the form is displayed.
With limited details, I could just give you hints.
Make sure you load your View from your Controller.
Your view should be connected to a Store .The Store must be connected to the Model.
Model is composed of Data and Fields or it is otherwise called the actual schema. You can also define the proxy in the Model or Store.
Follow this approach and you will be able to achieve what you are looking for.
You can use form.loadRecord(record) to load a model into a form.
If a form field has a name that matches the name of a field on the model, then that value will get loaded into the form field.
What does
I have already a store for the appropriate grid but the model is
different
mean?
Related
I need to create a form in which the fields are dynamically generated from the database api. The problem is that I have cases where I will have two selection fields, and one depends on the other.
For example:
Selection A - Manufacturer,
Selection B - Models
The Models that should be shown in selection B must only be the models of the manufacturer choosen in selection A.
As the form is made dynamically I don't have fixed states where I can check the value of selection A.
Does anyone have any idea how I could solve this problem?
Thanks,
Put an onChange handle on the Selection A (Manufacturer) in order to get the Selection B (Models) mounted based on the selected manufacturer.
Maybe you can fetch the models just after Selection A had a value selected.
Or, if you got all the models in the same moment when the manufacturers are fetched, when manufacturer will be selected you could filter models using it as reference.
I found the aswer and is very simple on my case, I'm using react-hook-form, so I only need use the watch function to see the valeu of
selection A, passing the name id of the component.
I have a list of fields that are not exclusive. Typically you would use html check boxes and bind each one to a Boolean value in the model. However I have been thrown a curve, to save space the users want all of the items to be presented in a select that allows multiple selections. I know how to create the select itself in HTML however I am not sure the best way to wire that up the model using the 'Angular way'. Is there a better solution than creating something in the controller to "translate" the select result to series of Booleans?
Welcome to SO!
Try using this directive:
https://github.com/amitava82/angular-multiselect
More info on SO here: AngularJS. Bootstrap multiselect without JQuery
I ended up creating a var in scope for the dropdown. Which wasn't too big of a deal as I keep my view model in a var called viewmodel, so it will not post to the server with rest of the view model. Then in my load and save functions I 'boxed' and 'unboxed' the booleans into a string array I fed to and read from the dropdown. little bit of work but it works. I was hoping the AngularJS framework could have handled this lifting for me but whatev.
Too bad you cannot data bind to an option in the select list (selected == true).
We are building a larger Qooxdoo application, and we have the following problem.
We try to bind a SelectBox (qx.ui.form.SelectBox) with a remote model to a form controller (qx.ui.form.Form) with property binding.
The form controller has also a remote model.
The form and the list are connected over a list controller (qx.data.controller.List).
The problem now are race conditions between this two models.
Both models are connected to a REST interface.
Is there a solution like a virtual selectbox, or a alternative?
UPDATE:
The main problem is the default selection of the select box when editing data in the form.
The user clicks on a button and the form gets opened in a new window. The form contents will be loaded via REST. In the form there is a select box containing all countries of the world (as example) loaded via REST, and Germany should be selected as default. This default selection is only possible, if all counties are already loaded via REST. Otherwise the first element in the list is selected.
Here is some example source code, it's not working, but is a good starting point: http://tinyurl.com/oqsfkrc
Virtual select box does not help you much because it's only virtual when it comes to rendering. So the data binding and the race conditions should be the same no matter which select box you choose.
I don't get the root of your problem so I can't give you a precise advice how to handle your race condition. Is it possible to load / set the models sequentially to break the race condition?
I have a requirement to create a custom form field that is basically an extjs grid. The user should be able to click a result in the grid. This clicked result should then become the fields value. Also, this field needs to extend Ext.form.field. Here's what I got:
Ext.define('MyApp.field.Grid', {
alias: 'widget.GriedField',
extend: 'Ext.form.field.Base',
I'm a lot of confused on how to add a grid to form field base. Looks like form field base's template expects HTML. How do I get it accept a component?
If you just need to select a value from a list of items. Why not use a combobox?
If you need to select multiple items. There is an example of how to use the MultiSelect ux component in the documentation examples.
http://docs.sencha.com/ext-js/4-1/#!/example/multiselect/multiselect-demo.html
If you really must use a grid. Then I wouldn't bother with trying to create a field type and cause yourself grief.
Add a listener to your grids selectionchange event and update a hidden field in your form with the value you want from the grid. Job done.
I ended up putting the grid on a form indirectly through creation of dependencies on my model.
My model has master-detail, which the detail is just a store reference. I found that using associations did not work for me.
So, in adding a field to a form, I have something that manages changed events for the model (master record) and the detail stores.
hai
i created a view using custom fields only (using views php module). the problem is that the view is not displayed. but if i add node id as an extra field the view is displayed.
It sounds like the view still needs to know what data to show, and depending on how you set up your view, you may have set it to use exposed filters. Turn off exposed filters. This should disable the required input field.