Lead Maintainer: Kyle Farris (@kylefarris)
A view module for intelligently rendering and validating selectbox input. Works well with ampersand-form-view. Based off of ampersand-select-view.
npm install ampersand-multiselect-view
Part of the Ampersand.js toolkit for building clientside applications.
Alias to calling setValue(null, true)
. Unselects all options.
Sets the selected option and view value to the original option value provided during construction.
Sets the selected options to those which match the provided value(s). Updates the view's .value
accordingly. MultiSelectView will error if no matching options exist.
autoRender
: [default:false
] generally, we leave rendering of this FieldView to its controlling formname
: the<select>
'sname
attribute's value. Used when reporting to parent formparent
: parent form referenceoptions
: array/collection of options to render into the select box[el]
: element if you want to render the view into[template]
: a custom template to use (see 'template' section, below, for more)[required]
: [default:false
] field required[eagerValidate]
: [default:false
] validate and show messages immediately. Note: field will be validated immediately to provide a true.valid
value, but messages by default are hidden.[value]
: initial value(s) (array) for the<select>
.value
must be a members of theoptions
set.
[label]
: [default:name
value] text to annotate your select control[invalidClass]
: [default:'select-invalid'
] class to apply to root element if invalid[validClass]
: [default:'select-valid'
] class to apply to root element if valid[requiredMessage]
: [default:'Selection required'
] message to display if invalid and required
If using a collection to produce <select>
<option>
s, the following may also be specified:
[disabledAttribute]
: boolean model attribute to flag disabling of the option node[idAttribute]
: model attribute to use as the id for the option node. This will be returned bySelectView.prototype.value
[textAttribute]
: model attribute to use as the text of the option node in the select box[yieldModel]
: [default:true
] if options is a collection, yields the full model rather than just itsidAttribute
to.value
When the collection changes, the view will try and maintain its currently .value
. If the corresponding model is removed, the <select> control will default to the 0th index <option> and update its value accordingly.
You may override the default template by providing your own template string to the constructor options hash. Technically, all you must provided is a <select>
element. However, your template may include the following under a single root element:
- An element with a
data-hook="label"
to annotate your select control - An
<select>
element to hold youroptions
with themultiple
ormultiple="multiple"
attribute. - An element with a
data-hook="message-container"
to contain validation messages - An element with a
data-hook="message-text"
nested beneath thedata-hook="message-container"
element to show validation messages
Here's the default template for reference:
<label class="select">
<span data-hook="label"></span>
<select multiple="multiple"></select>
<span data-hook="message-container" class="message message-below message-error">
<p data-hook="message-text"></p>
</span>
</label>
var FormView = require('ampersand-form-view');
var MultiSelectView = require('ampersand-multiselect-view');
module.exports = FormView.extend({
fields: function () {
return [
new MultiSelectView({
label: 'Pick some colors!',
// actual field name
name: 'color',
parent: this,
// you can pass simple string options
options: ['blue', 'orange', 'red'],
// you can specify that they have to pick at least one
required: true
}),
new MultiSelectView({
name: 'option',
parent: this,
// you can also pass array, first is the value, second is used for the label
// and an optional third value can used to disable the option
options: [ ['a', 'Option A'], ['b', 'Option B'], ['c', 'Option C', true] ]
}),
new MultiSelectView({
name: 'model',
parent: this,
// you can pass in a collection here too
options: collection,
// and pick some item from the collection as the selected ones
value: [collection1.at(2), collection1.at(5)],
// here you specify which attribute on the objects in the collection
// to use for the value returned.
idAttribute: 'id',
// you can also specify which model attribute to use as the title
textAttribute: 'title',
// you can also specify a boolean model attribute to render items as disabled
disabledAttribute: 'disabled',
// here you can specify if it should return the selected model(s) from the
// collection, or just the id attribute(s). defaults `true`
yieldModel: false
})
];
}
});
- We're still on the beta version!
Based considerably off of the ampersand-select-view
by Christopher Dieringer (@cdaringe).
Do it. This is still experimental--I can use all the help I can get!
MIT