I'll try to simplify the problem as much as I can.
Let's say I have 2 scopes
$scope.section1 = [
{label: 'label1'},
{label: 'label2'}
];
$scope.section2 = [
{value: 'one'},
{value: 'two}
];
Those scopes are used to generate buttons with ng-repeat
<button ng-repeat="item in section1 type="button">{{item.label}}</button>
and
<button ng-repeat="item in section2 type="button">{{item.value}}</button>
Now what I would like to do it to create a third scope that would attach values to the combinations of objects from the two previous ones, say:
$scope.combo = [
{ section1.label:label1 + section2.value: one = 'result1' },
{ section1.label:label2 + section2.value: one = 'result2' },
{ section1.label:label1 + section2.value: two = 'result3' },
{ section1.label:label2 + section2.value: two = 'result4' }
];
Now here comes the tricky part. What I would need to do, is to add a function that would take the values of clicked ng-repeat buttons from each section and then display the results based on the third scope in an input field or something.
So, if you click the button with label:label1 and the one with value:two the input field would show result3.
I'm very green when it comes to Angular and I have no idea how to approach it, especially that all values are strings.
If I understand correctly you could setup your combo something like ...
$scope.combo = {
"label1": {
"one": "result1",
"two": "result2"
},
"label2": {
"one": "result3",
"two": "result4"
}
}
You can then reference the correct value as combo[valueFromButton1][valueFromButton2] where valueFromButton1 and valueFromButton2 point at a model that contains the result of the clicked buttons. Your controller function then just needs to tie everything together by updating the model when the buttons are clicked.
See this plunkr ... https://embed.plnkr.co/GgorcM/
Without changing much you can also try like below provided code snippet.Run it to check the demo.
var app = angular.module('app', []);
app.controller('Ctrl',['$scope' ,function($scope) {
var key1, key2;
$scope.click = function(type, item) {
if (type == 'label') {
key1 = item;
} else if (type == 'val') {
key2 = item;
}
$scope.key = key1 + '+' + key2;
angular.forEach($scope.combo, function(val, key) {
if(val[$scope.key]){
$scope.finalVal = val[$scope.key];
}
});
};
$scope.section1 = [{
label: 'label1'
}, {
label: 'label2'
}];
$scope.section2 = [{
value: 'one'
}, {
value: 'two'
}];
$scope.combo = [{
'label1+one': 'result1'
}, {
'label2+one': 'result2'
}, {
'label1+two': 'result3'
}, {
'label2+two': 'result4'
}];
}]);
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app='app' ng-controller='Ctrl'>
<button ng-repeat="item in section1" ng-click="click('label',item.label)" type="button">{{item.label}}</button>
<button ng-repeat="item in section2" ng-click="click('val',item.value)"type="button">{{item.value}}</button>
<input type="text" ng-model="finalVal"/>{{key}} {{finalVal}}
</div>
Related
Blockquote
I want to convert a number to a animal with a Angular filter.
I have the following ng-repeat:
<div ng-repeat="speed in speeds track by $index">
You're faster than a <span ng-bind="speed.value | speedToAnimal"></span>
</div>
speed.value wil give you a value like 42.9
Ik want to match this speed value with a speed value in a array where speeds are linked to animals.
For example this is the array I have:
var animals = [
{
"speed": 33.7,
"animal": 'pig',
},
{
"speed": 40.2,
"animal": 'Dog',
},
{
"speed": 45.4,
"animal": 'Horse',
}
...
];
The speed value 42.9 is higher than the speed value of the dog in the array but lower than the speed value of the horse so I want the filter to turn the value 42.9 in to "Dog" so the end result wil be: You're faster than a Dog, instead of You're faster than a 42.9
I know how to call a filter but I don't know how build one.
Call filter: ng-bind="speed.value | speedToAnimal
filter:
app.filter('speedToAnimal', function() {
return function(input, optional1, optional2) {
// Do filter work here
return output;
}
});
jsfiddle
With some help from the answer of Amulya Kashyap this is my working solution:
<div ng-repeat="speed in speeds track by $index">
You're faster than a <span ng-bind="speed.value | speedToAnimal"></span>
</div>
The Filter a came up with:
app.filter('speedToAnimal', function () {
return function (value) {
var animals = [
{"speed":12,"animal":"Field Mouse"},
{"speed":13,"animal":"House Mouse"},
{"speed":16,"animal":"Camel"},
{"speed":18,"animal":"Pig"},
{"speed":20,"animal":"Gray Squirrel"},
{"speed":22,"animal":"Sea Lion"},
{"speed":24,"animal":"Sheep"},
];
if(!animals) return;
var curSpeed = value;
var len = animals.length - 1;
while(len >= 0){
if(curSpeed >= animals[len].speed){
return animals[len].animal;
}
len--;
}
};
});
Here's the working Fiddle of your code.
Now, here is your code too :
HTML PART :
<div ng-controller="MyCtrl">
<legend> Enter Speed</legend>
<input type="text" ng-model="speed.value" required />
<button type="button" ng-click="calc()">Get Animal</button>
<span>{{filteredAnimals}}</span>
</div>
CONTROLLER CODE
var myApp = angular.module('myApp',[]);
myApp.controller('MyCtrl', function($scope) {
$scope.animals = [
{
"speed": 33.7,
"animal": 'pig',
},
{
"speed": 40.2,
"animal": 'Dog',
},
{
"speed": 45.4,
"animal": 'Horse',
}];
$scope.calc = function(){
$scope.curSpeed = $scope.speed.value;
var len = $scope.animals.length - 1;
var filteredAnimals;
while(len >= 0){
if($scope.curSpeed >= $scope.animals[len].speed){
filteredAnimals = $scope.filteredAnimals = $scope.animals[len].animal;
break;
}
len--;
}
}
});
I have a form where you can add x number of fields. Each field contains option select. I want to filter out the already chosen option when this option is already chosen in one or multiples field before. Each field has a remove button and the form has 1 add button.
How can I filter out the dynamic fields?
Any help,guidance is most welcome.Thanks in advance. :)
This is how my HTML looks like:
<div data-ng-repeat="choice in choices">
<select data-ng-model="choice.option"
data-ng-options="item as item.Value for item in options">
</select>
<button data-ng-click="removeChoice(choice)">Remove choice</button>
<div>
<button data-ng-show="choices.length <= 4" data-ng-click="addNewChoice()">Add Choice</button>
</div>
</div>
And my controller:
$scope.options = [
{
"Key": "0",
"Value": "Select an option"
},
{
"Key": "Option1",
"Value": "Option1"
},
{
"Key": "Option2",
"Value": "Option2"
},
{
"Key": "Option3",
"Value": "Option3"
},
{
"Key": "Option4",
"Value": "Option4"
},
{
"Key": "Option5",
"Value": "Option5"
}
];
$scope.choices = [{ id: '1' }];
$scope.addNewChoice = function () {
var newItemNo = $scope.choices.length + 1;
$scope.choices.push({ id: newItemNo, option: $scope.option, value: $scope.value });
};
$scope.removeChoice = function () {
var index = $scope.choices.indexOf(choice);
$scope.choices.splice(index, 1);
};
ok
i can give simple recommendation which will be this.
1: add variable $scope.selectedOptions = [];
this will contain list of already selected options from all select elements .
2: create function $scope.AddSelectedOption(item);
this will add the selected object when we change option from any select element because we are going to use for all selects ng-change= "AddSelectedOption(item);"
3: add checkIfSelected(item); this will check if given object value is already selected or not ..
will user in
hope you understand what it will do just check like this
$scope.checkIfSelected = function (item) {
$scope.selectedFound = $scope.selectedOptions.filter(function
(option) {
if(option.value == item.value)
{
return day;
}
});
if($scope.selectedFound.length == 0 ) { return false; } else {
return true; }
}
This will return true if give item found in the options.
if not out.. you can invite me to help again .
This is possible. I'm explaining a basic version of this requirement. See the working example here http://plnkr.co/edit/S9yZpjhY55lXsuifnUAc?p=preview
What wer are doing is maintaining another options which is the copy of the original options. Copying the options will make it to not reference existing options since objects are pass by reference in Javascript.
The main logic is in this function, which modify the options on selection:
$scope.optionSelected = function(choice) {
$scope.availableOptions = $scope.availableOptions || angular.copy($scope.options);
if (choice.option) {
var index = -1;
// See if available options has that key
angular.forEach($scope.availableOptions, function(item, i) {
if (item.Key === choice.option.Key) {
index = i;
}
});
if (index > -1) {
// And then remove it
$scope.availableOptions.splice(index, 1);
}
}
};
My angular select isn't binding. I can tell the value is correct, but the select isn't updated. Why is not binding if the value is there?
<div ng-controller="MyController" ng-app>
<select class="form-control" ng-model="colorId"ng-options="color.id as color.name for color in colorList">
<option value="">--Select a Color--</option>
</select>
<input type="button" value="submit" ng-click="Select()"></input>
function MyController($scope) {
$scope.colorList = [{
id: '1',
name: 'red'
}, {
id: '2',
name: 'blue'
}, {
id: '3',
name: 'green'
}];
var colorId = 3;
$scope.colorId = colorId;
alert($scope.colorId);
$scope.Select = function () {
var colorId = 2;
$scope.colorId = colorId;
}
}
Here is a fiddle:
http://jsfiddle.net/ky5F4/23/
you need to change the id to a string when doing Select
$scope.Select = function () {
console.log('select fired');
var colorId = 1;
$scope.mySelection.colorId = colorId + "";
}
http://jsfiddle.net/bxkwfo0s/2/
next you should use a property of an object rather than just a scope variable, this will ensure proper model binding
ng-model="mySelection.colorId"
where the object could be something simple
$scope.mySelection = {colorId : colorId };
There are two errors with your code:
You are using colorList as your model in ng-options, but you are calling it datasets in your controller.
You use strings for the id, but set the $scope.colorId to a number.
Here is an updated fiddle changing ids to numbers and changing $scope.datasets to $scope.colorList
function MyController($scope) {
$scope.colorList = [{
id: 1,
name: 'red'
}, {
id: 2,
name: 'blue'
}, {
id: 3,
name: 'green'
}];
var colorId = 3;
$scope.colorId = colorId;
alert($scope.colorId);
$scope.Select = function () {
var colorId = 2;
$scope.colorId = colorId;
}
}
Consider making your ng-model be an object, specifically one of the objects that are already in your $scope.colorList. If you do that you should be able to avoid the post-processing you're doing in the click handler.
So your select will look like this:
<select class="form-control" ng-model="selectedColor"
ng-options="color.name for color in colorList"></select>
One gotcha is that if you have an object in your controller that looks JUST LIKE your red object, like$scope.selectedColorObj = { id : '1', name:'red' } and set the select's ng-model to that option, it won't work. Angular will see that you're setting to the ng-model to an object that's not actually in your data source and add an extra option with value="?", so I use $filter in this case to grab the matching member of the array:
$scope.colorId = '3';
$scope.selectedColor = $filter('filter')( $scope.colorList,{ id: $scope.colorId})[0];
See http://jsfiddle.net/ky5F4/92/
$scope.opts =
{
unit: [
{ id: 1, val: "px", name: "px"},
{ id: 2, val: "%", name: "%"}
]
}
The above is my options list array and now I set my default option.
$scope.user.unit = $scope.opts.unit[0];
The above creates the following in my html
<select class="unit ng-pristine ng-valid" data-ng-options="a.name for a in opts.unit" data-ng-model="user.unit">
<option value="0" selected="selected">px</option>
<option value="1">%</option>
</select>
When I use the below I am pulling the data that was stored in a db from the options selected in the above example.
$http.get('/assets/inc/file.php?id='+thisPage).success(function(response) {
var userData = response.userData;
var locationData = response.locationData;
$scope.user = userData;
$scope.locations = locationData;
console.log($scope.user.unit);
});
This console.logs me the following Object { id=1, val="px", name="px"}
I may be wrong but the <select> box is binded to $scope.opts
How would I be able to link the retrieved data from $scope.user.unit to $scope.opts.unit so that when the data is retrieved it will then mark the correct option as :selected?
I'm not 100% sure but you can try this (or create JSFiddle):
JS:
$http.get('/assets/inc/file.php?id='+thisPage).success(function(response) {
var userData = response.userData;
var locationData = response.locationData;
$scope.user = userData;
$scope.locations = locationData;
$scope.selected = {};
angular.forEach($scope.opts.unit, function (value)
{
if (value.val == $scope.user.unit.val) {
$scope.selected = value
}
});
console.log($scope.user.unit);
});
and in View:
<select class="unit ng-pristine ng-valid" data-ng-options="a.name for a in opts.unit" data-ng-model="user.unit">
<option value="{{selected.val}}">{{selected.name}}</option>
</select>
Your ng-model for the select element is an object, and not a primitive type, which is fine, but then you reassign $scope.user to a brand new object (returned from $http.get), so user.unit is a new object too, so it's not identical to any of your ng-options. I can think of two ways which should fix the problem:
bind the select to the 'id' property of the unit object:
<select ng-options="a.id as a.name for a in opts.unit" ng-model="user.unit.id">
or leave the select bound to user.unit, but use the track by feature of ng-options:
<select ng-options="a.name for a in opts.unit track by a.id" ng-model="user.unit">
One of the things in Angular is that you rarely need to do is explicitly create <option> elements manually as the framework will generate this for you. Therefore, the following will work: (Working jsfiddle at http://jsfiddle.net/LMHLq/12/)
HTML:
<select data-ng-model='user.unit' data-ng-options="o.id as o.name for o in opts.unit"/>
JavaScript:
$scope.opts ={
unit: [
{ id: 1, val: "px", name: "px"},
{ id: 2, val: "%", name: "%"},
{ id: 3, val: "pt", name: "pt"}
]
}
$http.get('/assets/inc/file.php?id='+thisPage).success(function(response) {
var userData = response.userData;
var locationData = response.locationData;
$scope.user = userData;
$scope.locations = locationData;
console.log($scope.user.unit);
});
$scope.opts ={
unit: [
{ id: 1, val: "px", name: "px"},
{ id: 2, val: "%", name: "%"},
{ id: 3, val: "pt", name: "pt"}
]
}
I noticed that the $scope.opts builds my select element and populates it but when the data is retrieved via db it needs to go into $scope.user.unit but this is binded to $scope.opts so what I have done is sought out the ID for the item that was retrieved and then added -1 to it so it will select from the array of $scope.opts.unit
var testUnit = $scope.user.unit.id-1; //gets the ID of the unit thats been retrieved
$scope.user.unit = $scope.opts.unit[testUnit]; //sets the selected option in the dom
I have a AngularJS directive that allows users to select a values from a list to filter on. Pretty simple concept which is represented here:
Problem is when I click one of the checkboxes they all select unintended. My directive is pretty simple so I'm not sure why this is happening. The code around the selection and checkboxes is as follows:
$scope.tempFilter = {
id: ObjectId(),
fieldId: $scope.available[0].id,
filterType: 'contains'
};
$scope.toggleCheck = function (id) {
var values = $scope.tempFilter.value;
if (!values || !values.length) {
values = $scope.tempFilter.value = [];
}
var idx = values.indexOf(id);
if (idx === -1) {
values.push(id);
} else {
values.splice(idx, 1);
}
};
$scope.valuesListValues = function (id) {
return $scope.available.find(function (f) {
return f.id === id;
}).values;
};
and the data resembles:
$scope.available = [{
id: 23,
name: 'Store'
values: [
{ id: 124, name: "Kansas" },
{ id: 122, name: "Florida" }, ... ]
}, ... ]
the view logic is as follows:
<ul class="list-box">
<li ng-repeat="val in valuesListValues(tempFilter.fieldId)">
<div class="checkbox">
<label ng-click="toggleCheck(val.id)">
<input ng-checked="tempFilter.value.indexOf(val.id) === -1"
type="checkbox"> {{val.name}}
</label>
</div>
</li>
</ul>
First off, it toggleCheck fires twice but populates the correct data ( second time given my code it removes it though ).
After the second fire, it checks all boxes... Any ideas?
Perhaps its that the local variable doesn't get reassigned to the property of the scope property used in the view. Since your values are then non-existent and not found, the box is checked.
$scope.tempFilter.value = values
I took the interface concept you were after and created a simpler solution. It uses a checked property, found in each item of available[0].values, as the checkbox model. At the top of the list is a button that clears the selected items.
JavaScript:
function DataMock($scope) {
$scope.available = [{
id: 23,
name: 'Store',
values: [{
id: 124,
name: "Kansas"
}, {
id: 122,
name: "Florida"
}]
}];
$scope.clearSelection = function() {
var values = $scope.available[0].values;
for (var i = 0; i < values.length; i++) {
values[i].checked = false;
}
};
}
HTML:
<body ng-controller="DataMock">
<ul class="list-box">
<li>
<button ng-click="clearSelection()">Clear Selection</button>
</li>
<li ng-repeat="val in available[0].values">
<div class="checkbox">
<label>
<input ng-model="val.checked"
type="checkbox" /> {{val.name}}
</label>
</div>
</li>
</ul>
</body>
Demo on Plunker
The repeat that I used to grab the values based on the id, was the problem area.
<li ng-repeat="val in valuesListValues(tempFilter.fieldId)">
removing that and simple listening and setting a static variable resolved the problem.
$scope.$watch('tempFilter.fieldId', function () {
var fId = $scope.tempFilter.fieldId;
if ($scope.isFieldType(fId, 'valuesList')) {
$scope.valuesListValues = $scope.valuesListValues(fId);
}
}, true);
});
and then in the view:
ng-repeat="value in valuesListValues"