I have a hash of objects, and the ID of this hash is binding to a RADIO BUTTON. When the user select this radio, I need to populate a select tag with options based on attribute of this model.
Its hard to explain, so I created a Codepen to show what I want:
http://codepen.io/rizidoro/pen/BeJjf
Thanks in advance!
Here's a codepen demo binding dynamically to a single SELECT element, with a working ng-model binding on selection change:
HTML:
<div ng-controller="TestCtrl">
<ul>
<li ng-repeat="attr in data">
<input type="radio" name='data-attr' value='{{attr.id}}' ng-model="selected.id" />{{attr.name}}
</li>
</ul>
<select ng-model="selected.value" ng-options="item.name for item in selectedAttr.values "></select>
</div>
JS:
function TestCtrl($scope) {
$scope.selected = {};
$scope.data = [
{"id":"113000",
"name":"Size",
"values":
[{"id":"92029","name":"Size A"},
{"id":"92030","name":"Size B"}]
},
{"id":"113002",
"name":"Color",
"values":
[{"id":"94029","name":"Blue"},
{"id":"94030","name":"Black"}]
}
];
$scope.$watch('selected.id', function(id){
delete $scope.selected.value;
angular.forEach($scope.data, function(attr){
if(attr.id === id){
$scope.selectedAttr = attr;
}
});
});
}
I have created a fiddle, that may solve ur problem. http://jsfiddle.net/qY2Zz/.
Seperated the data to a service.
animateAppModule.service('data', function(){...})
Assigned a model to the select box.
ng-model="$scope.selectedOption"
http://jsfiddle.net/wagedomain/afuz5/
I rewrote your HTML a little - not using ul / li tags where a div or span would suffice. Makes it easier.
Basically, inside the ng-repeat, you can do this:
<div ng-repeat="attr in data">
<input type='radio' name='data-attr' value='{{attr.id}}' />{{attr.name}}
<select ng-model="selected" ng-options="item.name for item in attr.values "></select>
</div>
It's the ng-options that makes this work. I also added a $scope.selected variable to model bind to but I'm not doing anything with it in the fiddle. Use as you need.
Related
Here is my piece of code, a function to add a meal template:
vm.addMealTemplate = function() {
$scope.mealCount++;
$compile( $(document.createElement('div')).attr("id", 'mealDiv' + $scope.mealCount).addClass("mealDiv"+$scope.mealCount).after().html(
'<select ng-options="(option.name ) for option in mealOptions" ng-model="selectedOption'+ $scope.mealCount+'" />' +
'<input type="text" placeholder="Meal timings" id="time'+ $scope.mealCount +'"/>' +
'<a id="mealCount" ng-class="mealCount" ng-click="addItemCategory()" uib-tooltip="Add category" tooltip-trigger="mouseenter" tooltip-placement="bottom"><i class="fa fa-plus"></i></a>'
).appendTo("#meals")
// $("#meals").append(newMealDiv)
)($scope);
}
On clicking calling the addItemCategory() for the specific div, I want another div to get added as a child of that div. There can be mutiple meal templates, and for each template I can call the addItemCategory mutliple times, and I want the category to be added to the same div for which the function has been called. How do I achieve this?
Currently I am using mealCount variable from scope to have the context, but once it gets increased, I have no way to access the divs added previously, to add the new element to that div. Any way using jQuery or AngularJs?
You can use ng-repeat
For example:
angular.module('app', []).
controller('ctrl', function($scope) {
$scope.meals = [];
});
.meal {
border:1px solid;
padding:10px;
margin-bottom:10px;
}
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="app" ng-controller="ctrl">
<div ng-repeat="meal in meals" class="meal">
<select ng-model="meal.count">
<option>1</option>
<option>2</option>
<option>3</option>
</select>
<input type="text" placeholder="Meal timings" ng-model="meal.timing" />
<div>
<div>Categories:</div>
<div ng-repeat="cat in meal.categories track by $index">
<input type="text" ng-model="meal.categories[$index]" />
</div>
<button ng-click="meal.categories.push('')">Add Category</button>
</div>
</div>
<button ng-click="meals.push({categories:[]})">Add meal</button>
<hr />
{{meals | json}}
</div>
Note: I changed the models etc. it's just example..
Here's an example Plunker on how your problem can be solved with ng-repeat in Angular:
http://plnkr.co/edit/POt7nFc4GqFU67SWdMp7?p=preview
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="style.css">
<script src="https://code.angularjs.org/1.5.5/angular.js"></script>
<script src="script.js"></script>
</head>
<body ng-app="restaurant" ng-controller="meal-controller">
<div ng-repeat="meal in meals track by $index">
<select ng-options="option.name for option in mealOptions" ng-model="meal.selectedMeal"></select>
<input type="text" placeholder="Meal timings" id="{{'time'+ $index }}" ng-model="meal.timing"/>
<a id="mealCount" ng-class="mealCount" ng-click="addItemCategory()" uib-tooltip="Add category" tooltip-trigger="mouseenter" tooltip-placement="bottom"><i class="fa fa-plus"></i></a>
</div>
<button ng-click="addMeal()">Add meal</button>
</body>
</html>
-
// Script.js
angular.module('restaurant', [])
.run( ['$rootScope', function( $rootScope ) {
}]
);
angular.module('restaurant').controller('meal-controller', [ '$scope', function( $scope ) {
$scope.meals = [];
$scope.mealOptions = [{ name: "option1"}, { name: "option2"}, { name: "option3" } ];
$scope.addMeal = function() {
$scope.meals.push({ selectedMeal: null, timing: "timing" });
}
$scope.addItemCategory = function() {
}
}]);
I am not entirely sure about how you want the logic to work, but I am sure that you can modify this example to fit your needs.
Ng-repeat works like a loop which prints the content it is wrapping until the end of the array. Ng-repeat has a lot of features like tracking elements in the array by index, this can used to (like in the example) give each input an unique id.
If you need to make some specific changes to a meal, you can pass it as an argument, for example if you want to delete a specific meal you can have a button inside the ng-repeat like this:
<button ng-click="deleteMeal(meal)">Delete Meal</button>
This means that you do not have to access the meal specifically by, for example, its id with jQuery.
I would say it is not recommended to mix angular and jQuery the way you are doing now. Try to stick with Angular and avoid jQuery. In some special cases where you need to do element specific modifications it can be achieved by using jQlite:
https://docs.angularjs.org/api/ng/function/angular.element
I have a ng-repeat like this:
<div ng-app="myApp" ng-controller="Ctrl">
{{ctrlTest}}<hr/>
<div ng-repeat="elements in filter">
<div>
<li ng-repeat="(key,value) in filter.producers" ng-show="value">
{{key}}<a ng-click="filter.producers.key=false"> X</a>
</li>
</div>
{{filter.producers}}
</div>
angular.module('myApp', [])
.controller('Ctrl', function($scope) {
$scope.ctrlTest = "Filters";
$scope.filter = {"producers": {"Ford":true,"Honda":true,"Ferrari":true}}
});
I am trying to make a ng-click that would set each label to false when clicking in a link, but I haven't achieved to do it properly as the key values are not fixed (they should be treated as variables).
So far I have tried it his way.
http://jsfiddle.net/Joe82/wjz8270z/5/
Thanks in advance!
Ps: I cannot change the json structure.
You just need to access the element of object by its key, to ensure that there references would not get lost & binding will work
<li ng-repeat="(key,value) in filter.producers" ng-show="value">
{{key}}<a ng-click="filter.producers[key]=false"> X</a>
</li>
Forked Fiddle
You also call a function and set value false
HTML
<li ng-repeat="(key,value) in filter.producers" ng-show="value">{{key}} {{value}}<a ng-click="setValue(key)"> X</a>
JS
$scope.setValue = function(key){
$scope.filter.producers[key.toString()] = false;
}
see this link http://jsfiddle.net/wjz8270z/8/
I'm trying to get the bootstrap multiselect widget to work. It works when I hardcode all the options, like this:
<select id="topic-select" multiple="multiple">
<option val='math'>math</option>
<option val='critical_reading'>critical reading</option>
<option val='writing'>writing</option>
</select>
$("#topic-select").multiselect({
includeSelectAllOption: true,
selectAllText: 'composite score',
allSelectedText: 'composite score',
selectAllNumber: false,
});
but if I try to populate the options with angular, like this:
<select id="topic-select" multiple="multiple" ng-option="topic in topicList">
</select>
then the dropdown window kindof bugs out, and doesn't show any of the options.
If I remove the javascript turning it into a multiselect, then it DOES show all the options.
I took a look at this similar question:
angularjs-ng-repeat-in-bootstrap-multiselect-dropdown
but couldn't didn't have any luck with it.
you don't really require Bootstrap multi-select if you're going for its functionality. You can get the same functionality in Angular, by populating your options in a dropdown, and adding them to a new list on ng-click.
<span uib-dropdown on-toggle="toggled(open)" auto-close = "outsideClick" >
<a class = "filter-names" href id="simple-dropdown" uib-dropdown-toggle>
My_Dropdown<span ng-repeat="list in generated_list">{{list.genre_name}},</span><b class="caret"></b>
</a>
<ul class="dropdown-menu" uib-dropdown-menu aria-labelledby="simple-dropdown" >
Search: <input type = "text" placeholder = "search in my list" ng-model = "search.name" />
<li ng-repeat="item in list_to_populate | filter:search" ng-class = "{true: 'filter-selected', false: ''}[item.selected == true]" ng-click="addToFilter(item)">
{{item.name}}
</li>
</ul>
</span>
And in the controller:
$scope.addToFilter = function(item) {
if(item.selected == "undefined" || item.selected == false)
{
item.selected = true;
Filters.addToFilters(item);
}
else
{
Filters.removeFromFilters(item);
item.selected = false;
}
}
And finally have a service "Filters" to store this list and call functions to use it anywhere.
You are missing "ng-model".
It is "ng-options" and not "ng-option".
Try this:
<select id="topic-select" multiple ng-model="selectedTopics" ng-options="topic as topic.name for topic in topicList">
</select>
Instead of populating the options with angular, I just add them to the div with vanilla javascript like this:
var topicSelect = $("#topic-select");
for (var topicId in topicList) {
topicSelect[0].add(new Option(topicList[topicId], topicId));
}
and everything works now.
i want to show and hide a div based on selection from the drop down , here is my code, this is my html code for dropdown which fetches the values from the "selectItemsFilterCriteria" json structure
<select ng-model="appointment" ng-change="changeme()" ng-options="item.name for item in selectItemsFilterCriteria">
<option ng-option value="" >Filter Criteria</option>
</select>
this is my changeme() function created inside a controller
$scope.changeme = function() {
$scope.appointment = $scope.items[0];
}
this is code for my div that is to be show or hide , right now my code is working on selection of first option from drop down it is showing me the div but the problem is that its not hiding that div on the selection of any other option from the dropdown list, kindly tell me where i m doing wrong??
<div class="mycontainer" ng-show=appointment >
<div class="left-nav">
<accordion close-others="true">
<accordion-group ng-repeat="item in pagedItems[currentPage] |filter:{name:item.name}| orderBy:sortingOrder:reverse">
<accordion-heading>
<table>
<tr class="odd" ng-click="showDataDetail=!showDataDetail" style="cursor: pointer">
<td><p class="lead-name">{{item.name}}</p>
<p class="call-up-icon">{{item.phoneNo}} </p>
<p>Lead Date : 07/02/2015</p></td>
<td><p></p>
<p class="blue-txt">{{item.trade}}</p>
<p class="fl cstm-wdth">GNU09</p>
<p class="fl">{{item.time}}</p>
<div class="cb"></div>
</td>
<td><p>Today</p>
<p>C#SQL</p>
<p class="blue-remark-icon"></p></td>
</tr>
</table>
</accordion-heading>
<div>{{item.data}}</div>
</accordion-group>
</accordion>
</div>
</div>
items array:
$scope.selectItemsFilterCriteria = [
{id:1 , name:"Appointments Scheduled"},
{id:2 , name:"fresh leads"}
];
Basically the problem is with your ng-change function call,
$scope.changeme = function() {
$scope.appointment = $scope.items[0];
}
You are setting appointment to first value of items array. Hence whenever you change the options, the function sets it back to first option , in turn the div is shown.
Please remove the ng-change function and try.
Remove the $scope.changeme() function. It is not necessary.
Since you are using ng-model on select whatever option you select will get assigned to the ng-model i.e appointment in your case.
Here is the plunkr example
I'm getting started with Angular.js and I'm wondering how to do something along the lines of this (pseudocode):
<li ng-repeat="item in items">
<# if(item.dataType == "string") { #>
<input type="text" />
<# } else if(...) { #>
<input type="password" />
<# } #>
</li>
I know the above code is not angularish, and I know that for simple processing I could use a conditional ng-hide or ng-show or something similar. But for complex behavior, if I had to perform various data checks and business logic, how could I dynamically generate DOM elements with Angular.js?
Within the angular world, DOM manipulation is accomplished using angularjs directives. Here is the angular documentation on directives: https://docs.angularjs.org/guide/directive, you would do well to read through this.
Here is some sample code that will accomplish the idea of your psuedo code:
var myApp = angular.module('myApp', []);
myApp.controller('MyController', function ($scope){
$scope.items = [
42, "hello, world!", 3.14, "i'm alive!"
]
});
myApp.directive('myInputDirective', function () {
return {
restrict: 'E',
replace: true,
template: '<div></div>',
link: function (scope, element, attrs) {
if (typeof scope.current === "string") {
element.append('<input type="text">');
} else {
element.append('<input type="password">');
}
}
}
});
and here's how the html would look:
<div ng-controller="MyController">
<ul ng-repeat="item in items" ng-init="current = item">
<my-input-directive></my-input-directive>
</ul>
</div>
Here is a plnkr with the working example: http://plnkr.co/edit/iiS4G2Bsfwjsl6ThNrnS?p=preview
Directives are how the DOM is manipulated in angular. First thing to notice is that angular has a set of directives that come out of the box, we're using a few above (ng-repeat, ng-init, ng-controller). Above we've created a custom directive that will analyze the data type of each item in the items array of our MyController controller, and append the correct html element.
I imagine that you already understand the ng-repeat directive, so I'll skip that. I'll explain what I'm doing with the ng-init directive though. The ng-init directive allows you to evaluate an expression in the current scope. What this means is that we can write an expression that is evaluated in our current controllers scope, in this case the MyController scope. I am using this directive to create an alias for our current item named current. We can use this inside our directive to check what type the current item in the array iteration is.
Our directive myInputDirective, is returning an object with a few different properties. I won't explain them all here (I'll let you read the documentation), but I will explain what the link function is and what I am doing with it. A link function is typically how we modify the DOM. The link function takes in the current scope (in this case the scope of MyController), a jqLite wrapped element that is associated with the directive, and the attrs which is a hash object with key-value pairs of normalized attribute names and values. In our case, the important parameters are the scope, which contains our current variable, and the element, which we will append the correct input onto. In our link function, we're checking the typeof our current item from our items array, then we are appending an element onto our root element based on what the type of the current item is.
For this particular problem, what I'm doing above is overkill. But based off of your question I figured you were looking for a starting point for more advanced uses of angular apart from the built in directives that angular provides. These are somewhat advanced topics in angular, so I hope that what I've said make some sense. Check out the plunker and play around with it a bit, and go through some of the tutorials on https://docs.angularjs.org/guide. Hope this helps!
You can use ng-show to conditionally hide and show elements e.g.:
<input ng-show="item.dataType === 'string'" type="text"/>
<input ng-show="..." type="password"/>
Assuming your object looks like this:
$scope.items = [
{
dataType: 'string',
value: 'André Pena'
},
{
dataType: 'password',
value: '1234'
},
{
dataType: 'check',
value: true
}
];
Option #1 - ng-switch plunker
<body ng-controller="MainCtrl">
<ul>
<li ng-repeat="item in items">
<div ng-switch="item.dataType">
<div ng-switch-when="string" ><input type="text" ng-model="item.value" /></div>
<div ng-switch-when="password" ><input type="password" ng-model="item.value" /></div>
<div ng-switch-when="check" ><input type="checkbox" ng-model="item.value" /></div>
</div>
</li>
</ul>
</body>
Option #2 - ng-show plunker
<body ng-controller="MainCtrl">
<ul>
<li ng-repeat="item in items">
<div ng-show="item.dataType == 'string'" ><input type="text" ng-model="item.value" /></div>
<div ng-show="item.dataType == 'password'" ><input type="password" ng-model="item.value" /></div>
<div ng-show="item.dataType == 'check'" ><input type="checkbox" ng-model="item.value" /></div>
</li>
</ul>
</body>
Option #3 - ng-hide plunker
<body ng-controller="MainCtrl">
<ul>
<li ng-repeat="item in items">
<div ng-hide="!(item.dataType == 'string')" ><input type="text" ng-model="item.value" /></div>
<div ng-hide="!(item.dataType == 'password')" ><input type="password" ng-model="item.value" /></div>
<div ng-hide="!(item.dataType == 'check')" ><input type="checkbox" ng-model="item.value" /></div>
</li>
</ul>
</body>
You should use the ng-if directive.
<input ng-if="item.dataType === 'string'" type="text"/>
<input ng-if="..." type="password"/>
The problem with using ng-show like #rob suggested, is that it only uses CSS to hide the element, which is not ideal if you want the two inputs to have the same name/ID.
ng-if will remove the element from the DOM if the condition is not true.
for a problem this simple there's no need to go and implement your own directive.