So, just getting started in Angular and it's pretty tricky, coming from a pretty simple JS and jQuery background. Here's what I'm trying to do. I have a "tag template" that has a couple categories and then some sub-tags contained within. I have defined these as an object, with the idea that the object/file can be called via file request and manipulated, etc.
I have loaded labels and tag category inputs dynamically by using a factory service and a controller with ng-repeat. Likewise, I have deposited the subtags into another div on page2 (using jQuery mobile page swiping). I'd like to use the checkbox state of the category tags to show/hide the sub-tags on page2.
I have tried dozens of things and searched all over stackexchange, the net, etc, but is simple and straightforward and similar enough for me to get it working. If someone can point me in the right direction, that would be great. Keep in mind that my next step is to add a button on page 1 to add a new category, and buttons on page 2 to add sub-tags to the sub-tag categories.
Finally, I have one more weird thing to report. If I only have two pages in my DOM, I have some weird behavior when loading the page. If I load from page 1, the tag checkboxes do not function, and I see a slight fattening of the border of the labels. If I swipe left to page 2 and reload from this page, the borders of the labels are thin and the checkboxes function. Cannot track down why this would be happening. My hacky workaround is to add an empty page zero and then changepage immediately to page one, but this is far from ideal. Any thoughts on that would be appreciated as well.
Here it is:
HTML
<!-- Angular version -->
<button class="ui-btn" onclick="selectTemplate();">My Template</button>
<form>
<div data-role="controlgroup">
<fieldset data-role="controlgroup">
<div ng-controller="templateCtrl">
<label
class="ui-checkbox"
ng-style="{backgroundColor: '{{tagCat.color | bgColor}}'}"
ng-repeat="tagCat in template"><input type="checkbox"
class="ui-checkbox"
id="{{tagCat.name}}"
ng-model="clicked"
ng-click="click();"
/>{{tagCat.name}}</label>
<div ng-repeat="tagCat in template">{{cb}} {{tagCat.name}} hallo</div>
</div>
</fieldset>
</div>
<div style="display:none" class="flashNotification"></div>
</form>
</div>
<div data-role="page" id="two">
<button class="ui-btn" onclick="selectTemplate();">My Template</button>
<form>
<div data-role="controlgroup">
<div ng-controller="templateCtrl">
<div ng-repeat="tagCat in template" ng-show="clicked" class="{{tagCat.name}}">{{tagCat.name}}
<fieldset data-role="controlgroup">
<label class="ui-checkbox"
ng-repeat="item in tagCat.items"
ng-style="{backgroundColor: '{{tagCat.color | bgColor}}'}"
for="item.name">{{tagCat.color | bgColor}}
<input class="ui-checkbox"
name="{{item.name}}"
id='{{item.name}}'
type="checkbox" />{{item.name}}</label>
</fieldset>
</div>
</div>
</div>
<div style="display:none" class="flashNotification"></div>
</form>
</div>
</div>
JS for jQuery Mobile
$(document).ready(function() {
// addTemplateItems(tagTemplate); // not necessary with Angular
// $.mobile.changePage('#two', { transition: 'none' }); // required or checkboxes don't work on load
$.mobile.changePage('#one', { transition: 'none' });
// // $("[data-role=controlgroup]").controlgroup("refresh");
// set up page nav
$(document).delegate('.ui-page', "swipeleft", function(){
var $nextPage = $(this).next('[data-role="page"]');
var $prevPage = $(this).prev('[data-role="page"]');
console.log("binding to swipe-left on "+$(this).attr('id') );
// swipe using id of next page if exists
if ($nextPage.length > 0) {
$.mobile.changePage($nextPage, { transition: 'slide' });
} else {
var message = 'tagged!';
// save tags here
flashNotify(message);
console.log('fire event!');
$('#flashNotification').promise().done(function () {
$('#group1').hide();
$('#group2').hide();
$('.ui-btn').hide();
// addTemplateItems(tagTemplate);
$.mobile.changePage($prevPage, { transition: 'none' });
captureImage();
});
}
}).delegate('.ui-page', "swiperight", function(){
var $prevPage = $(this).prev('[data-role="page"]');
console.log("binding to swipe-right on "+$(this).attr('id') );
// swipe using id of next page if exists
if ($prevPage .length > 0) {
$.mobile.changePage($prevPage, { transition: 'slide', reverse : true });
} else {
alert('no backy backy!');
}
});
// $("input[type='checkbox']").checkboxradio().checkboxradio("refresh");
});
JS for Angular App
var app = angular.module('STL', []);
app.factory('TagTemplate', [function () {
var TagTemplate = {};
var tagTemplate = {
family: {
name: "family",
description: "These are your family members.",
color: "red",
items: [
{
name: "Joe"
},
{
name: "Mary"
},
{
name: "Jim"
}
]
},
design: {
name: "design",
description: "Different types of design notes.",
color: "blue",
items: [
{
name: "inspiring"
},
{
name: "fail"
},
{
name: "wayfinding"
},
{
name: "graphics"
}
]
},
work: {
name: "work",
description: "Stuff for work.",
color: "green",
items: [
{
name: "whiteboard"
},
{
name: "meeting"
},
{
name: "event"
}
]
}
};
TagTemplate = tagTemplate;
return TagTemplate;
}])
// Controller that passes the app factory
function templateCtrl($scope, TagTemplate) {
$scope.template = TagTemplate;
$scope.click = function(model) {
console.log(this.checked, this.tagCat.name);
}
}
app.filter('bgColor', function () {
return function (color) {
// console.log(color, $.Color(color).lightness(.05).toHexString(.05));
// var rgba = $.Color(color).alpha(.05);
return $.Color(color).lightness(.97).toHexString();
}
})
For the main part, success!
I found a jsfiddle that gave me a good base for experimenting. After some playing, I realized that I just have to create a show property within each of the categories in my data service model, and then assign the ng-model to that property to control it.
I had to do it slightly differently in my own code, but the understanding gained from the following jsfiddle led me to the answer:
http://jsfiddle.net/Y43yP/
HTML
<div ng-app ng-controller="Ctrl">
<div class="control-group" ng-repeat="field in customFields">
<label class="control-label">{{field}}</label>
<div class="controls">
<input type="text" ng-model="person.customfields[field]" />
<label><input type="checkbox" ng-model="person.show[field]" /></label>
</div>
</div>
<button ng-click="collectData()">Collect</button><button ng-click="addField()">Add Field</button><br/><br/>
<em>Booleans</em>
<div ng-repeat="field in customFields">
<p>{{field}}: {{person.show[field]}}</p>
</div>
<em>Show/Hide</em>
<div ng-repeat="field in customFields">
<p ng-show="person.show[field]">{{field}}: {{person.customfields[field]}}</p>
</div>
</div>
JS
function Ctrl($scope) {
$scope.customFields = ["Age", "Weight", "Height"];
$scope.person = {
customfields: {
"Age": 0,
"Weight": 0,
"Height": 0
},
show: {
"Age": false,
"Weight": false,
"Height": false
}
};
$scope.collectData = function () {
console.log($scope.person.customfields, $scope.person.show);
}
$scope.addField = function () {
var newField = prompt('Name your field');
$scope.customFields.push(newField);
}
}
Still having the checkbox issue but I'll open a separate issue for that if I can't figure it out.
Thanks.
Related
I have a scenario where i want to get the name from the multiple selected checked boxes and display divs based on the selected checkbox.
Issue: I have 4 checkboxes and and I want to display divs based n the selected checkbox. these checkboxes are multiple, so can select multiple checkbox and get the multiple ids.
Here is the HTML code that I have done to achieve it:
<b-row>
<div v-for="services in getServices" :key="services.id">
<input
type="checkbox"
multiple
:name="services.name"
v-model="selected"
:value="{ name: services.name, id: services.id }"
/>
<label :for="services.name">{{ services.name }}</label>
</div>
</b-row>
{{selected}}
i have this also in the script side:
return {
selected: [],
}
Current issue:
I cannot get only id /name in the selected section. if I can get it , I can show the divs based on that. but I need to have the ids also while I want to save/post
Change the value of the checkbox to only name or id as follows for example and base it on that
<input
type="checkbox"
multiple
:name="services.name"
v-model="selected"
:value="services.id"
/>
<div v-if="getNameFromId(selected[0]) == 'div1'">This is div1.</div>
methods: {
getNameFromId: function (id) {
return this.getServices.find(service => service.id === id).name;
}
}
Add a property to array:
<div v-for="service in services" :key="service.id">
<input
type="checkbox"
multiple
:name="service.name"
v-model="service.selected"
:value="{ name: service.name, id: service.id }"
/>
<label :for="services.name">{{ service.name }}</label>
</div>
{{ selectedServices }}
And in the script:
export default {
name: "component",
data: function () {
return {
selected: [],
services: [
{
id: 1,
name: "Pedro",
selected: false,
},
{
id: 2,
name: "Jose",
selected: false,
},
],
};
},
computed: {
selectedServices: function () {
return this.services.filter((item) => item.selected);
},
},
};
This worked fine for me.
I want to replicate a common item list renaming feature, where you have a list of layers and if you double click a layer, it changes the layer item to an input and that input is automatically focused with its text selected as well.
In my example, I am not able to focus() the DOM element by its ref because it says it is not defined. It only works if I click a second time on the element once its changed to an input. How do I set this autofocus?
<div v-for="(item, i) in items">
<div #click="changeToInput(i)" v-if="!item.input">{{item.name}}</div>
<input ref="input" v-model="item.name" onfocus="select()" v-else>
</div>
changeToInput(i) {
this.items[i].input = true;
//this.$refs.input.focus()
}
Here is the complete example : https://codesandbox.io/s/reverent-khayyam-2x8mp?file=/src/App.vue:481-573
Two solutions:
First one: uses v-if + this.$nextTick:
v-if will insert/destroy the component when the binding expression is true/false, so in current cycle, input hasn't been in Dom tree. You have to use nextTick to wait for next cycle to get the Dom element of Input. And this.$refs.input will be one array based on how many v-if=true, so you have to filter out the this.items to find out correct index (that is why I used one combination of Array.slice and Array.filter).
Updated: The order of the elements of this.$refs.input1 is the order VNode is created. For example: clicks input2 -> input3 -> input1, the order of this.$refs.input1 is [2, 3, 1], not [1, 2, 3].
Second one: uses v-show + this.$nextTick:
It will make things easier, because v-show only update the css styles for Dom elements, it will not add/remove component instance (Vnode) from VNode tree. So the this.$refs.input will always equal this.items.length.
new Vue ({
el:'#app',
data() {
return {
items1: [
{ name: "Joe", input: false },
{ name: "Sarah", input: false },
{ name: "Jeff", input: false }
],
items2: [
{ name: "Joe", input: false },
{ name: "Sarah", input: false },
{ name: "Jeff", input: false }
],
refSort: {}
};
},
methods: {
changeToInput1(i) {
this.items1[i].input = true;
let refCount = (this.$refs.input1 && this.$refs.input1.length) || 0
refCount < this.items1.length && (this.refSort[i] = refCount)
this.$nextTick(() => {
// the purpose uses this.refSort is record the order of this.$refs.input (Its order is same as the creating order of Ref), you can uncomment below line to see the root cause
//console.log(this.$refs.input1[0] && this.$refs.input1[0].value, this.$refs.input1[1] && this.$refs.input1[1].value, this.$refs.input1[2] && this.$refs.input1[2].value)
this.$refs.input1[this.refSort[i]].focus()
})
},
changeToInput2(i) {
this.items2[i].input = true;
this.$nextTick(() => this.$refs.input2[i].focus())
}
}
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.16/vue.js"></script>
<div id="app">
<h3>Uses v-if: <p>{{items1}}</p></h3>
<div v-for="(item, i) in items1">
<div #click="changeToInput1(i)" v-if="!item.input">{{item.name}}</div>
<input ref="input1" v-model="item.name" onfocus="select()" v-else>
</div>
<h3>Uses v-show: <p>{{items2}}</p></h3>
<div v-for="(item, i) in items2">
<div #click="changeToInput2(i)" v-show="!item.input">{{item.name}}</div>
<input ref="input2" v-model="item.name" onfocus="select()" v-show="item.input">
</div>
</div>
I'm starting with vue.js and I was reading this question to help me loading some posts from DB with v-for.
Below each post there are Edit and Delete buttons. I can delete each post by its ID correctly. And I can open the input to edit post title correctly too.
But I cannot save input changes when I click on save button. It returns to the initial text.
And when I click to edit it opens all the inputs titles.
Is there a way to open the specific post title and keep the changes after save it?
<div id="app" class="row mb-50">
<div v-for="(item, index) in tours" v-bind:key="item.id" id="tours" class="col-md-12 mb-30">
<div class="tour-list">
<div class="tour-list-title">
<p>
<input type="text" ref="item.id" :value="item.title" :disabled="!editingTour"
:class="{view: !editingTour}" />
</p>
</div>
<div class="tour-list-description">
<p>
{{ item.description }}
</p>
</div>
<div class="tour-list-options">
<div class="row">
<div class="col-md-6">
<span>
<button #click="editingTour = !editingTour" v-if="!editingTour"
class="btn border btn-circle tour-list-edit-btn">Edit</button>
</span>
<span>
<button #click="save" v-if="editingTour"
class="btn border btn-circle tour-list-edit-btn">Save</button>
</span>
<span>
<button #click="editingTour = false" v-if="editingTour"
class="btn border btn-circle tour-list-delete-btn">Cancel</button>
</span>
<span>
<button #click="deleteTour(item.id, index)" v-if="!editingTour"
class="btn border btn-circle tour-list-delete-btn">Delete</buton>
</span>
</div>
</div>
</div>
</div>
</div>
</div>
vue.js:
let app = new Vue({
el: '#app',
data: {
editingTour: false,
tours: null,
errored: false,
edited: false,
deleted: false,
item: {
title: null,
description: null
}
},
created: function () {
this.searchTour()
},
methods: {
searchTour: function () {
axios.post('getPosts.php', { "token": param }).then((response) => {
this.tours = response.data;
}).catch((error) => {
this.errored = error;
});
},
editTour: function (id) {
axios.post('editPosts.php', { "token": token, "tourID": id }).then((response) => {
this.edited = response.data;
}).catch((error) => {
this.errored = error;
});
},
deleteTour: function (id) {
if (confirm('Are You sure?')) {
const index = this.tours.findIndex(item => item.id === id);
if (~index) {
axios.post('deletePosts.php', { "token": token, "tourID": id }).then((response) => {
this.deleted = response;
this.tours.splice(index, 1);
}).catch((error) => {
this.errored = error;
});
}
}
},
save: function () {
this.item.title = this.$refs['item.id'].value;
this.editingTour = !this.editingTour;
console.log(this.item.title);
}
}
});
In console.log(this.item.title); is returning undefined.
I have changed ref="item.id" to ref="title" and this.item.title = this.$refs['item.id'].value; to this.item.title = this.$refs['title'].value; but it did not work.
You should use in your input v-model instead of ref it will bind your model with the value you are editing, in general in vue we avoid direct DOM manipulation when possible, like so:
<input type="text" ref="item.id" v-model="item.title" :disabled="!editingTour"
:class="{view: !editingTour}" />
Where calling your function e.g. editTour you can pass it the item (if it's in the template to save the updated version like so:
#click="editTour(item)"
You can use the v-model directive to create two-way data bindings on form input, textarea, and select elements. It automatically picks the correct way to update the element based on the input type. Although a bit magical, v-model is essentially syntax sugar for updating data on user input events, plus special care for some edge cases.
Source : https://v2.vuejs.org/v2/guide/forms.html
Example:
<input v-model="description" placeholder="my description">
The above input value will then be binded to the description element of your data object and vice-versa - if one changes, the other is updated to the same value:
data:{
description: "default value"
}
So, when you DB request is ready you can update the value of the description within the DB method:
this.description=db.result.description
and the value of the input will also update.
Likewise, if the user changes the value of the input field, the value bound to the data element will be updated also. So, when saving back to DB:
db.update({description:this.description})
(note: the db methods here are for example purposes only. Replace with the relevant DB methods for your backend service.)
My component template contains the following checkbox code:
<div ref="htmlData">
<input
type="checkbox"
class="mycb"
:id="uniqID"
:disabled="disabled"
v-model="cbvalue"
>
</div>
(parts removed for simplicity).
I need to create a PDF out of this template (on server). This is what i'm doing in the code:
methods : {
save () {
let saveData = {
'html': this.$refs.htmlData.innerHTML
};
this.$http.post('/api/save',saveData);
}
}
However, the saved HTML doesn't contain checkbox state, so it always saves an unchecked checkbox.
Here's a slightly modified jsfiddle.
My question is: how can I capture the checkbox state in the rendered HTML?
I tried adding :checked="cbvalue" prop - no luck
It looks like there's no way to bind the checked attribute of an input; Vue does everything through the property. (For reference, the property is the internal state, the attribute is what shows up in the HTML.)
To get the attribute to reflect the property, you can add a little directive.
var demo = new Vue({
el: '#demo',
data: () => ({
val: false
}),
methods: {
save() {
console.log(this.$refs.main.innerHTML);
}
},
directives: {
explicitChecked: {
update(el) {
if (el.checked) {
el.setAttribute('checked', 'checked');
} else {
el.removeAttribute('checked');
}
}
}
}
})
<script src="//cdnjs.cloudflare.com/ajax/libs/vue/2.4.2/vue.min.js"></script>
<div id="demo">
<button #click="save">save</button>
<div ref="main">
<input type="checkbox" v-model="val" v-explicit-checked>
</div>
</div>
I'm trying to create a directive which takes some JSON data, and creates a form. Each of the inputs in the form are contained in a <div> wrapper. The wrapper also contains a <div> that appears when ng-show is used. The <div> using ng-show is for dynamically displaying errors.
HTML for the Directive:
<div class="input-wrapper" ng-repeat="inputData in contactCtrl.formInputData">
<input type="text" class="text-input" placeholder="{{ inputData.placeholder }}" ng-model="inputData.model" />
<div class="error-bubble" ng-show="inputData.showFunction">
</div>
</div>
HTML on the Page:
<div id="column-right">
<h2>
Send me an Email
</h2>
<contact-form></contact-form>
</div>
Directive Creation:
spaModule.directive("contactForm", function() {
return {
restrict: "E",
templateUrl: "partials/directives/contact-form.html"
}
});
JSON Data and a Validation Function:
this.formInputData = [
{
placeholder: "Name",
model: "contactCtrl.clientName",
showFunction: "!contactCtrl.validateName()"
},
{
placeholder: "Email",
model: "contactCtrl.email",
showFunction: "!contactCtrl.validateEmail()"
},
{
placeholder: "Subject",
model: "contactCtrl.subject",
showFunction: "!contactCtrl.validateSubject()"
}
];
this.validateName = function() {
if (this.clientName !== "") {
this.nameError = "Name is required!";
return true;
} else {
return false;
}
};
Not a single piece of this is working. The placeholder is not being rendered correctly, ng-show is not doing anything, and the ng-model is not working. I've tried reformatting this as normal HTML in my page and everything works flawlessly.
The issue appears to be declaring ng attributes with ng-repeat. What am I doing wrong?