I'm trying to add objects to a Firebase database and to retrieve the name and value from two text boxes.
<label class="item item-input">
<span class="input-label">Beer Name</span>
<input type="text" id='nomeBirra'>
</label>
<label class="item item-input">
<span class="input-label">Review</span>
<textarea name="comment" placeholder="Enter review" id="Recensione"></textarea>
</label>
This retrieves the two text areas:
var nameBirra=document.getElementById("nomeBirra")
var valueBirra=document.getElementById("Recensione")
This is the piece of code that adds a new object to database
rootRef.child("databaseBirre").set({
name: nameBirra,
value: valueBirra
})
The problem is that it works, but the two parameters appear empty in the database. How can I retrieve the values inside the text boxes? Or am I doing something else wrong?
The firebase syntax is right, which is why it's appearing in the database - it's the other bit that is wrong. There are a few things that could be wrong but it's hard to say without seeing the context (e.g. are those getElementByIds wrapped in a function etc?) but the most obvious one is that you need to get the VALUE of the input box, not the box itself. So, first thing to try:
var nameBirra=document.getElementById("nomeBirra").value
etc
Related
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
}
}
Need advice about form validation.
I have control structure like so:
<form name="myForm">
<control-wrap>
<label isRequired="myForm.field1">Some text here</label>
<custom-control name="field1"
ng-required="true"
ng-something-else="any"
ng-model="modelForm.field1"></custom-control>
<info>Some data after control</info>
<error-list field="myForm.field1"></error-list>
</control-wrap>
<control-wrap>
<label isRequired="myForm.field2">Some text here</label>
<custom-control name="field2"
ng-required="true"
ng-something-else="any"
ng-model="modelForm.field2"></custom-control>
<info>Some data after control</info>
<error-list field="myForm.field2"></error-list>
</control-wrap>
<control-wrap>
<label isRequired="myForm.field3">Some text here</label>
<custom-control name="field3"
ng-required="true"
ng-something-else="any"
ng-model="modelForm.field3"></custom-control>
<info>Some data after control</info>
<error-list field="myForm.field3"></error-list>
</control-wrap>
</form>
And this is completely AWFUL, unDRY and I guess I'm doing something very wrong.
I want to stop using field names, but I don't know how to pass ngModel to the sibling the proper way (now I'm forced to pass ngModel via attributes to isRequired and error-list).
Best solution for me ofc is to require: '^ngModel' from isRequired and error-list.
Any advice will be very appreciated.
P.S. there is no way for me to store fields in json object, there is a lot of logic between fields and different tweaks on labels and hints.
Well, I came to this solution: https://plnkr.co/edit/mPXpEaZs2uWZb3WRkmgp?p=preview
Maybe it's not the best solution, but I don't need names anymore.
The main idea is to set model reference to parent container and watch this reference from other children.
So in the end I have:
<control-wrap>
<label link-required>Field1 label:</label>
<input link-to-wrap ng-model="mc.field1"
type="text"
ng-required="true"
ng-minlength="5"
ng-maxlength="10" />
<errors-list></errors-list>
</control-wrap>
UPDATE
Some more thoughts about storing validation rules with model:
https://plnkr.co/edit/6ZVv685oSRDt7ELBKb9z?p=preview
New directive my-rules and extended data in controller.js
I'm working on an Angular2 project & currently i'm stuck with a Quizz module, so illustrating the problem ; when a candidate wants to pass a test he will get that test with some questions ; every question has 4 propositions with radio buttons and he should answer merely by checking one of them for every question. here is the HTML snippet of what i'm talking about :
<div *ngFor="#qt of listQuestion">
<h3 class="uk-accordion-title" >{{qt.wordingQ}}</h3>
<div class="uk-accordion-content">
<input type="radio" id="radio_demo_1" />
<label for="radio_demo_1"> <b>{{qt.lpo[0]}}</b></label> <br><br>
<input type="radio" id="radio_demo_2" />
<label for="radio_demo_2"><b>{{qt.lpo[1]}}</b></label><br><br>
<input type="radio" id="radio_demo_3" />
<label for="radio_demo_3"> <b>{{qt.lpo[2]}}</b></label> <br><br>
<input type="radio" id="radio_demo_4" />
<label for="radio_demo_4"><b>{{qt.lpo[3]}}</b></label>
</div> </div>
Where the listQuestion is a list of Question entities which each one of them has a wording and a list of propositions (lpo), in that way i cannot check only one radio button for every question as it is shown below :
I tried to remove the id in the <input> tags and it still the same problem , I've changed the id by name and give the same name for all tags thus, I could check only one proposition but when moving to another question and checking a new proposition , the first one will be cleared.
Any help Please ?
Your problem is that the way you currently do it, you have a single radio group for all questions. You can solve it by creating radio element name attributes dynamically. Something like this:
<h3 class="uk-accordion-title" >{{qt.id}}</h3>
<input type="radio" id="radio_demo_{{qt.id}}_{{index$}}" name="radio_demo_{{qt.id}}_{{index$}}" />
<label for="radio_demo_{{qt.id}}_{{index$}}"> <b>{{qt.lpo[0]}}</b></label> <br><br>
{{qt.id}} (or any other qt property that uniquely identifies the question) is the key here.
This way, you'll have a separate radio group for each question, because group names won't intersect.
Like others, I have been looking for a good way to validate my forms with Angular without the messages being too aggressive. The closest I have gotten is checking for $dirty and $touched prior to firing the messages. Which works for most situations.
The one situation I can't figure out is when the user edits, for example, a required field. The field has text in it, is valid, dirty, and touched. The user goes back into the field to change it. They backspace what is in the input and immediately the message fires because the input is now dirty, touched, and invalid. I'd rather it "reset" at that point and reevaluate when the user blurs the input again. Give them a chance to fill in the input while it's still focused.
Make sense? Any ideas?
Thanks!
Matt
Perhaps this works:
ng-model-options="{ updateOn: 'blur' }"
Add it to your input element. I believe the validation will occur when the model is updated, this way the model gets updated on blur.
Here you can see more options for this directive: https://docs.angularjs.org/guide/forms in Custom model update triggers. And a more detailed explanations in ngModelOptions.
Let me know if it works :)
Use function on ng-blur to validate and show messages if invalid.
ng-blur="validate()"
In your controller -
$scope.validate = function(){
//Validate logic
//If invalid
//Show message logic here
}
Take a look at the ngMessages documentation:
https://docs.angularjs.org/api/ngMessages/directive/ngMessages
You have an example there that shows you how to use it:
<form name="myForm">
<label>
Enter your name:
<input type="text"
name="myName"
ng-model="name"
ng-minlength="5"
ng-maxlength="20"
required />
</label>
<pre>myForm.myName.$error = {{ myForm.myName.$error | json }}</pre>
<div ng-messages="myForm.myName.$error" style="color:maroon" role="alert">
<div ng-message="required">You did not enter a field</div>
<div ng-message="minlength">Your field is too short</div>
<div ng-message="maxlength">Your field is too long</div>
</div>
</form>
I think this is the best way to do it (at least it's how I do it).
How can I mimic the tags box behaviour from SO in AngularJS? I'm trying to do something kind of similar where the user enters a set of space/comma-delimited words and as each one is typed I want to parse it out and put it into an array. I know there are probably 30 different ways to do this with bespoke javascript but I'm looking to leverage AngularJS in the most efficient way possible here.
At the moment I have an ng-model based on the input field and I'm doing an ng-repeat to create spans containing each tag, but angular uses commas as the delimiter and it also includes partially-formed words. So I only want to include words that have been delimited by the space/comma and I want to put them into an array so I can perform some validation on each one as it's entered, see below.
<form role="form" class="form-inline" data-ng-submit="updateScore()">
<input data-ng-list data-ng-model="labels" placeholder="Enter labels" class="form-control" type="text" >
</form>
<span data-ng-repeat="label in labels track by $index">
<span class="badge">
{{ label }} 5 <span class="glyphicon glyphicon-remove-sign"></span>
</span>
</span>
Any ideas?
Figured it out actually...
<input data-ng-list="/[,\s]/" data-ng-model="labels" placeholder="Enter labels" class="form-control" type="text" >