I have the same problem as this question: "Polymer How to pass returned iron-ajax string into another polymer element", but the answer didn't solve my problem.
I have two custom elements (below), and I want to bind the response from <iron-ajax> into a property (pagination_options) of a-pagination. In a-pagination, if I check the property value using console.log, pagination_options is always logged as undefined. Another property I'm binding (url) is always populated. Why is pagination_options undefined?
table-list element :
<dom-module id="table-list">
<link rel="stylesheet" href="table-list.css" />
<template>
<iron-ajax url=[[url]] last-response={{response}} params=[[params]] auto></iron-ajax>
<template is="dom-repeat" items="{{response.data}}" as="item">
<div>[[item.content]]</div>
</template>
<a-pagination url=[[url]] pagination_options={{response.pagination}}></a-pagination>
</template>
<script>
Polymer({
is: "table-list",
properties: {
url: String,
params: Object
}
});
</script>
</dom-module>
a-pagination element :
<dom-module id="a-pagination">
<script>
Polymer({
is: "a-pagination",
properties: {
url: String,
pagination_options: Object
},
ready: function(){
console.log(this.url);
console.log(this.pagination_options);
}
});
</script>
</dom-module>
Usage:
<table-list url="http://localhost/api/v1/article" params='{"page": 1}'></table-list>
Example AJAX response:
{
"status": "success",
"data": [{
"id": "1",
"content": "content 1"
},
{
"id": "2",
"content": "content 2"
}],
"pagination": {
"total_page": 1,
"per_page": 10,
"current_page": "1"
}
}
In this case, the ready lifecycle event always occurs before the AJAX response event, so when you log the property in ready(), you're actually logging the initial value of pagination_options (which is undefined).
Instead, you should use an observer like this:
Polymer({
is: 'a-pagination',
observers: ['_paginationChanged(pagination_options)'],
_paginationChanged: function(pagination_options) {
console.log(pagination_options);
},
//...
});
HTMLImports.whenReady(() => {
Polymer({
is: "table-list",
properties: {
url: String,
params: Object
},
ready() {
// fill response asynchronously to simulate AJAX event
this.async(() => {
this.response = {
"status": "success",
"data": [{
"id": "1",
"content": "content 1"
}, {
"id": "2",
"content": "content 2"
}],
"pagination": {
"total_page": 1,
"per_page": 10,
"current_page": "1"
}
};
}, 1000);
}
});
Polymer({
is: "a-pagination",
properties: {
url: String,
pagination_options: Object
},
observers: [
'_paginationChanged(pagination_options)'
],
ready() {
// Don't log `pagination_options` in the `ready`
// callback, since the AJAX request that fills
// it might not yet have occurred, and the
// resulting data bindings might not yet have
// taken effect. Use observers instead.
console.log('ready(): url', this.url);
console.log('ready(): pagination_options', this.pagination_options);
},
_paginationChanged(pagination_options) {
console.log('_paginationChanged(): pagination_options', pagination_options);
}
});
});
<head>
<base href="https://polygit.org/polymer+1.7.1/components/">
<script src="webcomponentsjs/webcomponents-lite.min.js"></script>
<link rel="import" href="polymer/polymer.html">
</head>
<body>
<div>See console log</div>
<table-list url="http://httpbin.org/get"></table-list>
<dom-module id="table-list">
<link rel="stylesheet" href="table-list.css" />
<template>
<iron-ajax url=[[url]] last-response={{response}} params=[[params]]></iron-ajax>
<template is="dom-repeat" items="{{response.data}}" as="item">
<div>[[item.content]]</div>
</template>
<a-pagination url=[[url]]
pagination_options={{response.pagination}}></a-pagination>
</template>
</dom-module>
</body>
codepen
Related
I'd like to create a control that converts the data into something I need.
At the moment, I solve this with a global variable. The code looks something like this:
(The lowercase functionality is only to demonstrate it in a simple way. Usually I want to use it for arrays of objects. e.g. to get distinct values of certain names and ids)
<dom-module id="my-tolower">
<script>
"use strict";
Polymer({
is: 'my-tolower',
properties: {
input: {
type: String,
value: "",
},
output:{
type: String,
value: "",
notify: true,
}
},
observers:[
"_inputChanged(input)",
],
_inputChanged: function(newInput, oldInput){
this.set("output", newInput.toLowerCase());
}
});
</script>
</dom-module>
Usage:
<my-tolower input="[[output.name]]" output="{{lower}}">[[lower]]</my-tolower>
This solution works great if I am only using the variable lower only once. Inside of a <dom-repeat>, I get a problem.
How can I easily make a custom variable that is only available inside of my-tolower? Exactly the same way as Polymer's dom-repeat does?
I took a look at the code at Polymer's <dom-repeat> sources, but I have no idea how that works. Is this even possible in a custom element? Do I need to create a custom template?
To explain my problem better I have added a bigger Example that explains my problem in detail.
HTMLImports.whenReady(() => {
Polymer({
is: 'my-app',
ready: function(){
//In my real Problem this value comes from a websocket...
this.devices = [{
name: "PC 1",
components: [
{
name: "HDD1",
processors: [
{
type: "Processor1",
usage: "Dont Know 1"
},
{ type: "Processor1", usage: "DontKnow2"},
{ type: "Processor2", usage: "DontKnow3"}
]
},
{
name: "Another Piece Of Hardware",
processors: [
{
type: "Processor4",
usage: "Dont Know 1"
},
{ type: "Processor3", usage: "DontKnow2"},
{ type: "Processor4", usage: "DontKnow3"}
]
}
]
},
{
name: "PC 2",
components: [
{
name: "My third piece of hardware",
processors: [
{
type: "Processor1",
usage: "Dont Know 1"
},
{ type: "Processor2", usage: "DontKnow2"},
{ type: "Processor3", usage: "DontKnow3"}
]
}
]
}];
//this.devices must not be changed!
}
});
Polymer({
is: 'my-distinct',
properties: {
inputs: {
type: String
},
outputs:{
computed: '_getDistincts(inputs, path)',
notify: true
},
path: {
type: String,
value: ""
}
},
_getDistincts(inputs, path){
let result = [];
for(let key in inputs){
if(inputs.hasOwnProperty(key)){
let x = inputs[key];
if(path && path != ""){
x = x[path];
}
if(result.indexOf(x) < 0){
result.push(x);
}
else{
//Already Exists
}
}
}
return result;
}
});
});
<head>
<base href="https://polygit.org/polymer+1.8.1/components/">
<script src="webcomponentsjs/webcomponents-lite.js"></script>
<link rel="import" href="polymer/polymer.html">
</head>
<body>
<my-app></my-app>
As you can see, there is always "Processor1", "Processor2" and "Pocessor3" available although this is only the result of the last computers component. You can see the right result (but with duplicates) if you use the comment I made instead.
<dom-module id="my-app">
<template>
<ul>
<template is="dom-repeat" items="[[devices]]" as="device">
<li>[[device.name]]
<ul>
<template is="dom-repeat" items="[[device.components]]" as="component">
<li>[[component.name]]
<ul>
<!-- This is my code with using distinct -->
<my-distinct inputs="[[component.processors]]"
outputs="{{distinctProcessorNames}}"
path="type">
<template is="dom-repeat" items="[[distinctProcessorNames]]" as="processorName">
<li>[[processorName]]
<!-- Here I could iterate over all processors (filtered) and list their usages-->
</li>
</template>
</my-distinct>
<!-- This is my code without using distinct. -->
<!--template is="dom-repeat" items="[[component.processors]]" as="processor">
<li>[[processor.type]]
<ul>
<li>Used for [[processor.usage]]</li>
</ul>
</li>
</template-->
</ul>
</li>
</template>
</ul>
</li>
</template>
</ul>
</template>
</dom-module>
</body>
Demo
You are using 2 different Polymer custom elements <my-app> and <my-distinct>.
Therefore you should declare the second one with its proper <dom-module> statement:
<dom-module id="my-distinct">
<template>
<template is="dom-repeat" items="[[outputs]]" as="processorName">
<li>[[processorName]]
</template>
</template>
</dom-module>
Then use your computed property (based on the attribute value) outputs as the items value of <template is="dom-repeat">.
Demo below:
HTMLImports.whenReady(() => {
Polymer({
is: 'my-app',
ready: function(){
//In my real Problem this value comes from a websocket...
this.devices = [{
name: "PC 1",
components: [
{
name: "HDD1",
processors: [
{
type: "Processor1",
usage: "Dont Know 1"
},
{ type: "Processor1", usage: "DontKnow2"},
{ type: "Processor2", usage: "DontKnow3"}
]
},
{
name: "Another Piece Of Hardware",
processors: [
{
type: "Processor4",
usage: "Dont Know 1"
},
{ type: "Processor3", usage: "DontKnow2"},
{ type: "Processor4", usage: "DontKnow3"}
]
}
]
},
{
name: "PC 2",
components: [
{
name: "My third piece of hardware",
processors: [
{
type: "Processor1",
usage: "Dont Know 1"
},
{ type: "Processor2", usage: "DontKnow2"},
{ type: "Processor3", usage: "DontKnow3"}
]
}
]
}];
//this.devices must not be changed!
}
});
Polymer({
is: 'my-distinct',
properties: {
inputs: {
type: String
},
outputs:{
computed: '_getDistincts(inputs, path)', notify: true
},
path: {
type: String,
value: ""
}
},
_getDistincts(inputs, path){
let result = [];
for(let key in inputs){
if(inputs.hasOwnProperty(key)){
let x = inputs[key];
if(path && path != ""){
x = x[path];
}
if(result.indexOf(x) < 0){
result.push(x);
}
}
}
//console.log( result )
return result;
}
});
});
<head>
<base href="https://polygit.org/polymer+1.8.1/components/">
<script src="webcomponentsjs/webcomponents-lite.js"></script>
<link rel="import" href="polymer/polymer.html">
</head>
<body>
<my-app></my-app>
<dom-module id="my-app">
<template>
<ul>
<template is="dom-repeat" items="[[devices]]" as="device">
<li>[[device.name]]
<ul>
<template is="dom-repeat" items="[[device.components]]" as="component">
<li>[[component.name]]
<ul>
<my-distinct inputs="[[component.processors]]" path="type">
</my-distinct>
</ul>
</li>
</template>
</ul>
</li>
</template>
</ul>
</template>
</dom-module>
<dom-module id="my-distinct">
<template>
<template is="dom-repeat" items="[[outputs]]" as="processorName">
<li>[[processorName]]
</template>
</template>
</dom-module>
</body>
As you discovered, properties declared inside a <dom-repeat> (i.e., lower in this case) are not scoped exclusively to the <dom-repeat> or its iterations. Thus, each iteration is overwriting the previous lower value, and lower remains available outside the <dom-repeat>.
However, you could achieve a similar scoping effect by attaching an output property to each item iterator in the <dom-repeat> if item is an Object.
For example, consider an <x-foo> element that takes an input array of Objects and passes each input to <my-tolower>, which writes a new value into _output (an attached property on the iterator):
<template is="dom-repeat" items="[[inputs]]" as="x">
<!-- Attach output to a new property on item (i.e., "_output") -->
<my-tolower input="[[x.input]]" output="{{x._output}}"></my-tolower>
</template>
HTMLImports.whenReady(() => {
Polymer({
is: 'x-foo',
properties: {
inputs: Array
},
_toObjArray: function(inputs) {
// Map inputs into objects so that we can attach properties to each iterator in a dom-repeat
return inputs.map(input => ({input}));
}
});
Polymer({
is: 'my-tolower',
properties: {
input: {
type: String,
value: "",
},
output: {
computed: '_computeOutput(input)',
notify: true,
}
},
_computeOutput: function(input) {
return input.toLowerCase();
}
});
});
<head>
<base href="https://polygit.org/polymer+1.8.1/components/">
<script src="webcomponentsjs/webcomponents-lite.js"></script>
<link rel="import" href="polymer/polymer.html">
</head>
<body>
<x-foo inputs='["aLPha", "brAVo", "CHarLiE", "DelTA", "epSiLoN"]'></x-foo>
<dom-module id="x-foo">
<template>
<template is="dom-repeat" items="[[_toObjArray(inputs)]]">
<!-- Attach output to a new property on item (i.e., "_output") -->
<my-tolower input="[[item.input]]" output="{{item._output}}"></my-tolower>
<div>
<span>[[item.input]] -> [[item._output]]</span>
</div>
</template>
</template>
</dom-module>
</body>
demo
In your code, you have a nested object, used in nested dom-repeats. The same technique from above can be applied at each nesting level, but your example only needs it at the innermost level. You could give <my-distinct>.outputs its own "local" variable by attaching the output to the iterator (i.e., component):
<my-distinct outputs="{{component.distinctProcessorNames}}" ...>
Then, you'd use that in your inner dom-repeat like this:
<template is="dom-repeat" items="[[component.distinctProcessorNames]]" ...>
HTMLImports.whenReady(() => {
Polymer({
is: 'my-app',
ready: function(){
this.devices = [{
name: "PC 1",
components: [
{
name: "HDD1",
processors: [
{
type: "Processor1",
usage: "Dont Know 1"
},
{ type: "Processor1", usage: "DontKnow2"},
{ type: "Processor2", usage: "DontKnow3"}
]
},
{
name: "Another Piece Of Hardware",
processors: [
{
type: "Processor4",
usage: "Dont Know 1"
},
{ type: "Processor3", usage: "DontKnow2"},
{ type: "Processor4", usage: "DontKnow3"}
]
}
]
},
{
name: "PC 2",
components: [
{
name: "My third piece of hardware",
processors: [
{
type: "Processor1",
usage: "Dont Know 1"
},
{ type: "Processor2", usage: "DontKnow2"},
{ type: "Processor3", usage: "DontKnow3"}
]
}
]
}];
}
});
Polymer({
is: 'my-distinct',
properties: {
inputs: {
type: String
},
outputs:{
computed: '_getDistincts(inputs, path)',
notify: true
},
path: {
type: String,
value: ""
}
},
_getDistincts(inputs, path){
let result = [];
for(let key in inputs){
if(inputs.hasOwnProperty(key)){
let x = inputs[key];
if(path && path != ""){
x = x[path];
}
if(result.indexOf(x) < 0){
result.push(x);
}
else {
//Already Exists
}
}
}
return result;
}
});
});
<head>
<base href="https://polygit.org/polymer+1.8.1/components/">
<script src="webcomponentsjs/webcomponents-lite.js"></script>
<link rel="import" href="polymer/polymer.html">
</head>
<body>
<my-app></my-app>
<dom-module id="my-app">
<template>
<ul>
<template is="dom-repeat" items="[[devices]]" as="device">
<li>[[device.name]]
<ul>
<template is="dom-repeat" items="[[device.components]]" as="component">
<li>[[component.name]]
<ul>
<my-distinct inputs="[[component.processors]]" outputs="{{component.distinctProcessorNames}}" path="type">
</my-distinct>
<template is="dom-repeat" items="[[component.distinctProcessorNames]]" as="processorName">
<li>[[processorName]]</li>
</template>
</ul>
</li>
</template>
</ul>
</li>
</template>
</ul>
</template>
</dom-module>
</body>
your demo with updates
You commented that you don't want to clone any objects or modify the input. That's unfortunately not possible with the iterator-property technique described above. The better option in that case is to provide a template for <my-distinct>, which would encapsulate any transformations without affecting the input.
I want to set paper-item as disabled or active according to variants variable. I used dom-repeat to list paper-items. disabled property can be used for this, however it cannot set like these: disabled="true" or disabled="false".
How can I do this?
<paper-listbox attr-for-selected="itemID" selected="{{item.id}}" class="dropdown-content">
<template is="dom-repeat" items="[[variants]]">
<paper-item itemID$="[[item.id]]">[[item.value]]</paper-item>
</template>
</paper-listbox>
Polymer({
is: 'item-create',
properties: {
variants: {
type: Array,
value: [
{id: 1, value: "Color", status: "disabled"},
{id: 2, value: "Number", status: "active"}
]
}
}
});
You could use a computed binding that returns true only when status is disabled:
// template
<paper-item disabled="[[_computeDisabled(item.status)]]">
// script
_computeDisabled: function(status) {
return status === 'disabled';
}
HTMLImports.whenReady(() => {
Polymer({
is: 'x-foo',
properties: {
variants: {
type: Array,
value: () => [{
id: 1,
value: "Color",
status: "disabled"
}, {
id: 2,
value: "Number",
status: "active"
}]
}
},
_computeDisabled: function(status) {
return status === 'disabled';
}
});
});
<head>
<base href="https://polygit.org/polymer+1.11.3/webcomponents+webcomponents+:v0/components/">
<script src="webcomponentsjs/webcomponents-lite.js"></script>
<link rel="import" href="paper-dropdown-menu/paper-dropdown-menu.html">
<link rel="import" href="paper-listbox/paper-listbox.html">
<link rel="import" href="paper-item/paper-item.html">
<link rel="import" href="neon-animation/web-animations.html">
</head>
<body>
<x-foo></x-foo>
<dom-module id="x-foo">
<template>
<paper-dropdown-menu>
<paper-listbox attr-for-selected="item-id" selected="{{item.id}}" slot="dropdown-content">
<template is="dom-repeat" items="[[variants]]">
<paper-item item-id="[[item.id]]" disabled="[[_computeDisabled(item.status)]]">[[item.value]]</paper-item>
</template>
</paper-listbox>
</paper-dropdown-menu>
</template>
</dom-module>
</body>
codepen
Because I failed to create a working plunker I uploaded the test elemet to my private webserver. You can test the code below at thevplan.de/x-test.html. The JSON file is located at thevplan.de/getMenu.json.
x-test.html
<!DOCTYPE html>
<html>
<head>
<title>x-test 4</title>
<script src="bower_components/webcomponentsjs/webcomponents-lite.js"></script>
<link rel="import" href="src/vplan-imports.html">
</head>
<body>
<dom-module id="x-test">
<template>
<iron-ajax
auto
id="getMenu"
url="getMenu.json"
handle-as="json"
on-response="handleResponse"
last-response="{{lastResponse}}"></iron-ajax>
<paper-dropdown-menu label="Day">
<paper-listbox class="dropdown-content" selected="{{selectedDateIndex}}">
<template id="dayList" is="dom-repeat" items="[[lastResponse]]">
<paper-item>[[item.day]]</paper-item>
</template>
</paper-listbox>
</paper-dropdown-menu>
<br>
<paper-dropdown-menu label="Class">
<paper-listbox id="classMenu" class="dropdown-content" selected="{{selectedClassValue}}"
attr-for-selected="value">
<template is="dom-repeat" items="[[targetArray]]">
<paper-item value="[[item]]">[[item]]</paper-item>
</template>
</paper-listbox>
</paper-dropdown-menu>
<br>
<br>
<span>selectedClassValue: [[selectedClassValue]]</span>
</template>
</dom-module>
<script>
Polymer({
is: 'x-test',
ready: function () {
},
properties: {
lastResponse: {
type: Array
},
targetArray: {
type: Array,
computed: 'computeTargetArray(selectedDateIndex, lastResponse)',
},
selectedDateIndex: {
type: Number,
value: 0
},
selectedClassValue: {
type: String
},
selectedClassValueOld: {
type: String
}
},
observers: [
'generateClassSelection(targetArray)'
],
handleResponse: function () {
//console.log('x-test: AJAX response ready');
},
computeTargetArray: function (selectedDateIndex, lastResponse) {
this.selectedClassValueOld = this.selectedClassValue;
this.selectedClassValue = false;
return (lastResponse[selectedDateIndex].lessons);
},
generateClassSelection: function (targetArray) {
console.log('x-test: targetArrayChanged');
if (targetArray.indexOf(this.selectedClassValueOld) != -1) {
Polymer.dom(this.root).querySelector('#classMenu').select(this.selectedClassValueOld);
console.log('x-test: selectedClassValueOld used');
} else {
Polymer.dom(this.root).querySelector('#classMenu').select(targetArray[0]);
console.log('x-test: first class selected');
}
}
});
</script>
<x-test></x-test>
</body>
</html>
getMenu.json
[
{
"date": "2016-08-15",
"day": "Monday",
"lessons": [
"08b",
"08c",
"08d",
"09b",
"09c",
"09e",
"10b",
"11"
]
},
{
"date": "2016-08-16",
"day": "Tuesday",
"lessons": [
"06c",
"06d",
"07a",
"07b",
"09a",
"09b",
"09c",
"09d",
"09e",
"10a",
"10c",
"10d",
"11",
"12"
]
},
{
"date": "2016-08-17",
"day": "Wednesday",
"lessons": [
"06a",
"06b",
"06d",
"07a",
"07d",
"08b",
"08c",
"08d",
"09c",
"09e",
"10a",
"10d",
"11",
"12"
]
},
{
"date": "2016-08-18",
"day": "Thursday",
"lessons": [
"05a",
"06c",
"06d",
"07a",
"08c",
"09d",
"09e",
"10a"
]
}
]
The second menu becomes blank if you switch to a target array with the same amount of entries. If you switch from Monday to Tuesday everything works fine. But if you switch from Monday to Thursday the value is not visible inside the dropdown menu. The menu array for Tuesday has more entries than the array for Monday. But the array for Thursday contains the same amount of entries as the array for Monday.
I think you are running into a timing issue.
You should either wait until dom-repeat finished rendering by waiting for the dom-change event (see the docs)
<template is="dom-repeat" items="[[targetArray]]" on-dom-change="generateClassSelection">
</template>
Or you can use this.async to defer setting the selected value of your paper-listbox:
generateClassSelection: function (targetArray) {
console.log('x-test: targetArrayChanged');
this.async(function() {
if (targetArray.indexOf(this.selectedClassValueOld) != -1) {
Polymer.dom(this.root).querySelector('#classMenu').select(this.selectedClassValueOld);
console.log('x-test: selectedClassValueOld used');
} else {
Polymer.dom(this.root).querySelector('#classMenu').select(targetArray[0]);
console.log('x-test: first class selected');
}
}
I follow the Polymer official example of nesting templates and the second template is repeated.
My array data is similar to this:
[
{
"title": "My title book",
"author": "The author",
"votes": [
{ "bad": 0 },
{ "regular": 2 },
{ "good": 201 },
{ "excellent": 458 }
]
},
{
"title": "My title book",
"author":"The author",
"votes": [
{ "bad": 0 },
{ "regular": 2 },
{ "good":201 },
{ "excellent": 458 }
]
}
]
and here is my code of polymer element:
<template is="dom-repeat" items="{{books}}" as="book">
<div><b>Title: </b><span>{{book.title}}</span></div>
<div><b>Author: </b><span>{{book.author}}</span></div>
<div>
<p>Votes:</p>
<template is="dom-repeat" items="{{book.votes}}" as="vote">
<b>Bad: </b><span>{{vote.bad}}</span>
<b>Regular: </b><span>{{vote.regular}}</span>
<b>Good: </b><span>{{vote.good}}</span>
<b>Excellent: </b><span>{{vote.excellent}}</span>
</template>
</div>
</template>
The result of this is:
Title: My book title
Author: My author
Votes:
Bad: 0 Regular: Good: Excellent: Bad: Regular: 2 Good: Excellent: Bad: Regular: Good: 201 Excellent: Bad: Regular: Good: Excellent: 458
Each element in book.votes contains either bad, regular, good, or excellent, but the inner template repeater assumes all voting types are present in each object. That is, the template outputs the tally for all votes in each iteration when only one of those votes is available.
Walking through the four iterations...
The repeater reads book.votes[0] ({"bad": 0}) as vote.
It reads vote.bad and gets a value of 0.
It can't find vote.regular.
It can't find vote.good.
It can't find vote.excellent.
Result:
Bad: 0 Regular: Good: Excellent:
The repeater reads book.votes[1] ({"regular": 2}) as vote.
It can't find vote.bad.
It reads vote.regular and gets a value of 2.
It can't find vote.good.
It can't find vote.excellent.
Result:
Bad: Regular: 2 Good: Excellent:
The repeater reads book.votes[2] ({"good": 201}) as vote.
It can't find vote.bad.
It can't find vote.regular.
It reads vote.good and gets a value of 201.
It can't find vote.excellent.
Result:
Bad: Regular: Good: 201 Excellent:
The repeater reads book.votes[3] ({"excellent": 458}) as vote.
It can't find vote.bad.
It can't find vote.regular.
It can't find vote.good.
It reads vote.excellent and gets a value of 458.
Result:
Bad: Regular: Good: Excellent: 458
If the intention is to show all voting tallies at once, book.votes should be an object instead of an array of objects:
"votes": {
"bad": 0,
"regular": 2,
"good": 201,
"excellent": 458
}
...and the inner template repeater should be removed, binding to book.votes.* directly:
<div>
<b>Bad: </b><span>{{book.votes.bad}}</span>
<b>Regular: </b><span>{{book.votes.regular}}</span>
<b>Good: </b><span>{{book.votes.good}}</span>
<b>Excellent: </b><span>{{book.votes.excellent}}</span>
</div>
<head>
<base href="https://polygit.org/polymer+:master/components/">
<script src="webcomponentsjs/webcomponents-lite.min.js"></script>
<link rel="import" href="polymer/polymer.html">
<link rel="import" href="paper-card/paper-card.html">
</head>
<body>
<x-foo></x-foo>
<dom-module id="x-foo">
<template>
<template is="dom-repeat" items="{{books}}" as="book">
<paper-card>
<div><b>Title: </b><span>{{book.title}}</span>
</div>
<div><b>Author: </b><span>{{book.author}}</span>
</div>
<div>
<p>Votes:</p>
<div>
<b>Bad: </b><span>{{book.votes.bad}}</span>
<b>Regular: </b><span>{{book.votes.regular}}</span>
<b>Good: </b><span>{{book.votes.good}}</span>
<b>Excellent: </b><span>{{book.votes.excellent}}</span>
</div>
</div>
</paper-card>
</template>
</template>
<script>
Polymer({
is: 'x-foo',
properties: {
books: {
type: Array,
value: function() {
return [{
"title": "My title book",
"author": "The author",
"votes": {
"bad": 0,
"regular": 2,
"good": 201,
"excellent": 458
}
}, {
"title": "The other book",
"author": "The other author",
"votes": {
"bad": 11,
"regular": 22,
"good": 33,
"excellent": 44
}
}];
}
}
}
});
</script>
</dom-module>
</body>
jsbin before / after
I am trying to implement jQuery FancyTree http://wwwendt.de/tech/fancytree/demo/ with local array data
Referred from https://code.google.com/p/fancytree/
This is the code. But it is not working, No Script Error.But Tree is empty!!!
Even i copied the jQuery, UI versions of the file they using in a demo
site. Still nothing works
<html>
<head>
<script src="jquery.js" type="text/javascript"></script>
<script src="jquery-ui.custom.js" type="text/javascript"></script>
<link href="ui.fancytree.css" rel="stylesheet" type="text/css" />
<script src="jquery.fancytree.js" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
$("#tree").fancytree({
onActivate: function (node) {
// A DynaTreeNode object is passed to the activation handler
// Note: we also get this event, if persistence is on, and the
// age is reloaded.
alert("You activated " + node.data.title);
},
children: [ // Pass an array of nodes.
{title: "Item 1" },
{ title: "Folder 2", isFolder: true,
children: [
{ title: "Sub-item 2.1" },
{ title: "Sub-item 2.2" }
]
},
{ title: "Item 3" }
]
});
});
</script>
</head>
<body>
<div id="tree">
</div>
</body>
</html>
I have noticed that source:[] is how you initializes the tree in $("#tabTree").fancytree() initialization call, so your example would be:
<html>
<head>
<script src="jquery.js" type="text/javascript"></script>
<script src="jquery-ui.custom.js" type="text/javascript"></script>
<link href="ui.fancytree.css" rel="stylesheet" type="text/css" />
<script src="jquery.fancytree.js" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
$("#tree").fancytree({
onActivate: function (node) {
// A DynaTreeNode object is passed to the activation handler
// Note: we also get this event, if persistence is on, and the
// age is reloaded.
alert("You activated " + node.data.title);
},
source: [ // Pass an array of nodes.
{title: "Item 1" },
{ title: "Folder 2", isFolder: true,
children: [
{ title: "Sub-item 2.1" },
{ title: "Sub-item 2.2" }
]
},
{ title: "Item 3" }
]
});
});
</script>
</head>
<body>
<div id="tree">
</div>
</body>
</html>
btw, in case you noticed it, the documentation is quite messy, as they are refactoring the code, the documentation is half what's left from dynatree and the new conventions of fancytree. So expect more weird stuff like that :-)
are the Scriptpath right?
Do you download "jquery.js, jquery-ui.custom.js, ui.fancytree.css and jquery.fancytree.js" ?