angular form validation - ng-valid to start - angularjs

I'm using angular-auto-validate and am having some state management issues. I have a multipart form where some fields are required (name/email address) and the user is able to go "back" to change answers. Basically, I have a partial for every stage in the form which is working well, with one exception. The continue button is disabled if the field is invalid. I tried simply using the $valid identifier, but when the partial loads, each field begins with ng-valid so I can either use $touched or $pristine. Problem is, when the user goes back, the value that has binded to a data source is valid, but the field isn't touched so the continue button doesn't activate. Sample code (this is generated code after I've hit the "back" button):
<input type="text" name="name" ng-minlength="3" ng-model="myModel" placeholder="Your First Name" ng-focus="inputFocused()" ng-pattern-err-type="" ng-model-options="{updateOn: 'blur'}" class="ng-valid ng-valid-pattern ng-valid-minlength">
and the button:
Continue
How can I either disable the default ng-valid or identify a condition where the value is being populated by the controller?

I think you should use ng-dirty/pristine. You can manually set the condition of the form as the user navigates.
When you populate your form data you can do something like:
if($scope.myForm.data) {
$scope.myForm.$setDirty
}
Your button:
Continue

Related

how to validate on form submit using AngularJS

I am very much new in angular js.I want to validate and post the form data using angular js on submit.I searched google but most of them was
disable the button on load ,after completing the form with valid data the button enable but I want to show error messages on form submit.
Here is My form snapshoot
I have tested with two text fields one is name and other is email but I want to proper messages for each fields e.g for email,phone no (valid format) and empty fields now I get only empty field message.
<span class="error-message"
ng-show="showMessage(frmReg.name)">
Please complete this field.</span>
var app=angular.module('regForm',[]);
app.controller('FormController',function($scope,$http){
$scope.frmRegField={};
$scope.frmSubmit=function(){
angular.forEach($scope.frmReg.$error.required, function(field) {
field.$setDirty();
});
// $http({
// method:"POST",
// url:"form_submit.php",
// data:$scope.frmRegField
// }).success(function(data){
// });
};
$scope.showMessage=function(input){
console.log(input.$$attr.name);
var show = input.$invalid && (input.$dirty || input.$touched);
return show;
};
});
You could use either class or state to do what you need
Input fields have the following states:
$untouched The field has not been touched yet
$touched The field has been touched
$pristine The field has not been modified yet
$dirty The field has been modified
$invalid The field content is not valid
$valid The field content is valid
They are all properties of the input field, and are either true or false.
Forms have the following states:
$pristine No fields have been modified yet
$dirty One or more have been modified
$invalid The form content is not valid
$valid The form content is valid
$submitted The form is submitted
The following classes are added to, or removed from, input fields:
ng-untouched The field has not been touched yet
ng-touched The field has been touched
ng-pristine The field has not been modified yet
ng-dirty The field has been modified
ng-valid The field content is valid
ng-invalid The field content is not valid
ng-valid-key One key for each validation. Example: ng-valid-required, useful when there are more than one thing that must be validated
ng-invalid-key Example: ng-invalid-required
The following classes are added to, or removed from, forms:
ng-pristine No fields has not been modified yet
ng-dirty One or more fields has been modified
ng-valid The form content is valid
ng-invalid The form content is not valid
ng-valid-key One key for each validation. Example: ng-valid-required, useful when there are more than one thing that must be validated
ng-invalid-key Example: ng-invalid-required
The classes are removed if the value they represent is false.
Give the form a name:
<form name="myForm">
And a name for the input to:
<input type="text" name="myName">
Then use ng-show/ng-if in your span:
<span class="error-message" ng-show="myForm.myName.$touched && myForm.myName.$invalid">
Please complete this field.
</span>
You can use ng-disabled to validate submit too:
<input type="submit" value="Submit" ng-disabled="myForm.$invalid">
Hope this helps. Good luck!

Clear ng-model then Update ng-model with new value

Angular and Ionic Application
I have a form that has a lot of <select> elements, The form offers the user to select from a list or if the <option> = 'Other' then I show another <input> to enter the value. I then save the value to another ng-model.
<select data-ng-model="minor.tests.liveEarth"
name="minorTestLiveEarth"
required>
<option></option>
<option>>200</option>
<option>>299</option>
<option>>500</option>
<option>>1000</option>
<option>Other</option>
</select>
</label>
<label class="item item-input item-stacked-label" ng-show="minor.tests.liveEarth === 'Other'">
<span class="input-label">Please Specify</span>
<input type="text"
placeholder="live earth other"
ng-maxlength="10"
data-ng-model="minor.tests.liveEarthOther"
name="minorTestLiveEarthOther">
</label>
I originally used <datalist> but doesn't show up on iOS.
I assigned the liveEarthOther to the same as the <select> liveEarth but it has 'Other' assigned to the ng-model, which then the user has to delete the input value Other before entering their value.
I have looked for a combobox kind of control but haven't found one that works properly.
How could I make this into a directive or any thing suitable that could perform the renaming without the user having to delete the value.
I want to use this functionality many times in the application I am building.
You may have overcomplicated things by re-using the ngModel. If you change the value minor.tests.liveEarth you'll mess up your select because anything other than the given values will cause nothing to be selected. But if you don't change minor.tests.liveEarth then you'll have to delete it when the user fills in the text input. This would then also mess up the select box!
What I would do is record the value of the text input to a different variable. Keep the ng-show="minor.tests.liveEarth === 'Other'" as it is, but change your input to
<input type="text"
placeholder="Fill in your other live earth"
ng-maxlength="10"
data-ng-model="tempVar" />
This way the input will be still be recorded, but the select won't be messed up on the ngModel change. Due to the placeholder, the user will know that they have to fill in the text box.
In your js, you'll have to create a validating function when the form is submitted along the lines of:
var validateLiveEarth = function(){
if(minor.tests.liveEarth === "Other"){
//check that tempVar meets validation
//assign tempVar to whatever form you're sending
}
}

Form is not being set to $dirty even though input is being edited

I am using angular-unsaved Changes directive as well as the angular built in form controller to detect if a form is $dirty.
I have a form on a specific page that even though I edit elements, the form never registers as dirty. I have gone so far as to strip everything and leave only:
<form unsaved-warning-form class="form-horizontal" name="WHAT">
<input type="text" name="thematif" id="thematiff" class="form-control" >
</form>
The formis never $dirty even when I change the value of the input. Any ideas what the problem could be causing the changes to input not to be detected? Is it that there should be an angular input equivalent tag instead of a plain old "input"?
What could be disabling the detection?
Ng-model is missing on your input field.
Validations and all form enhancements are provided by utilizing ng-model directive (and its controller). So add ng-model and everything is Ok.
See: http://jsbin.com/podepo/edit?html,output
<form unsaved-warning-form class="form-horizontal" name="WHAT">
<input type="text" name="thematif" ng-model="whatever" >
<pre>{{WHAT|json}}</pre>
</form>

parsleyjs not working with blur event

I have parsleyjs and jquery on my page and I'm trying to get parsley to work when the user clicks out of the input field. I have marked it as a required field and also set it to trigger if its blank or empty when the user clicks out of the input field. But right now its not showing any error. What am I doing wrong.
<form action="" method="post" class="form-horizontal" data-validate="parsley">
<input type="text" name="firstname" data-required="true" data-trigger="blur" data-notblank="true" placeholder="First Name" />
</form>
Second question is there a way to trigger a custom validation method in another js file for specific input fields? If so how would I go about it in this setup.
By default parsley only validates once there are 3 or more characters in a field.
If you want to validate on blur for empty, then you need
'data-validation-minlength' => 0 as an attribute

Angular - binding data a form

I have a form that POST all data that is entered, when saving. But when I refresh the page, not all entries are bound to their respective input fields.
It is a bit strange because I am using ng-model on all the fields.
Here is an example of what doesn't bind:
<input name="full_name" ng-model="user.full_name" type="text" required></input>
and here is one that does bind:
<input name="address" ng-model="user.address" type="text" required></input>
Has anyone run into this issue, or notice something I may be missing?
It could be the browser remembering your last input in the forms. So after refreshing, the browser pre-populates the form and angular doesn't update the scope. There is a Google Groups thread about that. The best solution I found is to add autocomplete="off" in the inputs of the forms. Because after refreshing, there is no way angular could be remembering your last input in the form, unless you are using cookies for that wich you are obviously not.

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