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108 lines
3.5 KiB
Text
108 lines
3.5 KiB
Text
@workInProgress
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@ngdoc overview
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@name Cookbook: Advanced Form
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@description
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Here we extend the basic form example to include common features such as reverting, dirty state
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detection, and preventing invalid form submission.
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<doc:example>
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<doc:source>
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<script>
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function UserForm() {
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this.state = /^\w\w$/;
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this.zip = /^\d\d\d\d\d$/;
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this.master = {
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name: 'John Smith',
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address:{
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line1: '123 Main St.',
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city:'Anytown',
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state:'AA',
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zip:'12345'
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},
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contacts:[
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{type:'phone', value:'1(234) 555-1212'}
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]
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};
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this.cancel();
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}
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UserForm.prototype = {
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cancel: function() {
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this.form = angular.copy(this.master);
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},
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save: function() {
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this.master = this.form;
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this.cancel();
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}
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};
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</script>
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<div ng:controller="UserForm">
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<form name="myForm">
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<label>Name:</label><br/>
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<input type="text" ng:model="form.name" required/> <br/><br/>
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<label>Address:</label> <br/>
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<input type="text" ng:model="form.address.line1" size="33" required/> <br/>
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<input type="text" ng:model="form.address.city" size="12" required/>,
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<input type="text" ng:model="form.address.state" size="2"
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ng:pattern="state" required/>
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<input type="text" ng:model="form.address.zip" size="5"
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ng:pattern="zip" required/><br/><br/>
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<label>Contacts:</label>
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[ <a href="" ng:click="form.contacts.$add()">add</a> ]
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<div ng:repeat="contact in form.contacts">
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<select ng:model="contact.type">
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<option>email</option>
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<option>phone</option>
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<option>pager</option>
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<option>IM</option>
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</select>
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<input type="text" ng:model="contact.value" required/>
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[ <a href="" ng:click="form.contacts.$remove(contact)">X</a> ]
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</div>
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<button ng:click="cancel()" ng:disabled="{{master.$equals(form)}}">Cancel</button>
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<button ng:click="save()" ng:disabled="{{myForm.$invalid || master.$equals(form)}}">Save</button>
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</form>
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<hr/>
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Debug View:
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<pre>form={{form}}
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master={{master}}</pre>
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</div>
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</doc:source>
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<doc:scenario>
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it('should enable save button', function() {
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expect(element(':button:contains(Save)').attr('disabled')).toBeTruthy();
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input('form.name').enter('');
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expect(element(':button:contains(Save)').attr('disabled')).toBeTruthy();
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input('form.name').enter('change');
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expect(element(':button:contains(Save)').attr('disabled')).toBeFalsy();
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element(':button:contains(Save)').click();
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expect(element(':button:contains(Save)').attr('disabled')).toBeTruthy();
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});
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it('should enable cancel button', function() {
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expect(element(':button:contains(Cancel)').attr('disabled')).toBeTruthy();
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input('form.name').enter('change');
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expect(element(':button:contains(Cancel)').attr('disabled')).toBeFalsy();
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element(':button:contains(Cancel)').click();
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expect(element(':button:contains(Cancel)').attr('disabled')).toBeTruthy();
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expect(element(':input[ng\\:model="form.name"]').val()).toEqual('John Smith');
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});
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</doc:scenario>
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</doc:example>
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#Things to notice
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* Cancel & save buttons are only enabled if the form is dirty — there is something to cancel or
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save.
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* Save button is only enabled if there are no validation errors on the form.
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* Cancel reverts the form changes back to original state.
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* Save updates the internal model of the form.
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* Debug view shows the two models. One presented to the user form and the other being the pristine
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copy master.
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