我有一堆表示过滤器的复选框,因此,单击复选框时,应向过滤器数组添加一个包含过滤器类型(分类法)和值(术语)的对象。
单击复选框时,它首先添加一个包含分类法和术语属性的新对象。到目前为止,这有效。问题是,当我单击具有已存在的分类法值的第三个复选框时,它将向该数组添加一个全新的对象,而不是将该术语添加到现有的术语数组中。
这是现在的样子:
<input type="checkbox" id="term-1" value="term-1" name="taxonomy-1">
<label for="term-1">Term 1</label>
<input type="checkbox" id="term-2" value="term-2" name="taxonomy-1">
<label for="term-2">Term 2</label>
<input type="checkbox" id="term-3" value="term-3" name="taxonomy-1">
<label for="term-3">Term 3</label>
File1.js
import FilterModule from '../helpers/filter-module';
class View {
constructor() {
self.filterModule = new FilterModule();
this.$filters = $( '[data-filters]' );
}
// Called after api got data
update() {
// Set event listener for select(s)
this.$filters.find( 'select' ).on( 'change', this.handleFiltering );
this.$filters.find( 'input[type="checkbox"]' ).on( 'change', this.handleFiltering );
}
handleFiltering() {
let tax = $( this ).attr( 'name' );
const term = $( this ).val();
self.filterModule.handleCheckbox( $( this ), tax, term );
}
}
export default new View();
File2.js
import Api from '../helpers/api';
export default class FilterModule {
handleCheckbox( checkbox, tax, term ) {
const filters = Api.response.filters.active_filters;
if ( $( checkbox ).is( ':checked' ) ) {
// Check if taxonomy exists, if not, add it
const index = filters.findIndex( x => x.taxonomy === tax );
if ( index === -1 ) {
console.log( 'does not exist, add new taxonomy object' );
// Add new selection
filters.push( {
taxonomy: tax,
terms: [ term ]
} );
} else {
console.log( 'tax exists, push new term into it' );
filters.find( x => x.taxonomy === tax ).terms.push( term );
}
console.log( filters );
}
// Update data
this.update();
}
update() {
Api.fetch();
}
}
因此第一个复选框的点击效果很好,结果将是:
{
taxonomy: 'taxonomy-1',
terms: [ 'term-1' ]
}
第二次点击:
{
taxonomy: 'taxonomy-1',
terms: [ 'term-1', 'term-2' ]
}
但是第三次点击会导致:
{
taxonomy: 'taxonomy-1',
terms: [ 'term-1', 'term-2' ]
},
{
taxonomy: 'taxonomy-1',
terms: [ 'term-3' ]
},
我不明白为什么要添加一个新对象,而不是将其推送到现有分类法的terms数组中。
答案 0 :(得分:3)
我创建了一个可行的代码示例,但将let tax = $(this).attr('id')
更改为let tax = $(this).attr('name');
。
到目前为止,一切都按预期工作,将术语添加到现有对象中,而不是创建新对象:
$('input[type="checkbox"]').on('change', this.handleFiltering);
const activeFilters = [];
function handleFiltering() {
let tax = $(this).attr('name');
const term = $(this).val();
handleCheckbox($(this), tax, term);
}
function handleCheckbox(checkbox, tax, term) {
// activeFilters represents an array
if ($(checkbox).is(':checked')) {
// Check if taxonomy exists, if not, add it
const index = activeFilters.findIndex(x => x.taxonomy === tax);
if (index === -1) {
console.log('does not exist, add new object');
// Add new selection
activeFilters.push({
taxonomy: tax,
terms: [term]
});
} else {
console.log('tax exists, push new term into it');
activeFilters.find(x => x.taxonomy === tax).terms.push(term);
}
}
output.innerHTML = JSON.stringify(activeFilters, null, 2);
};
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<input type="checkbox" id="term-1" value="term-1" name="taxonomy-1">
<label for="term-1">Term 1</label>
<input type="checkbox" id="term-2" value="term-2" name="taxonomy-1">
<label for="term-2">Term 2</label>
<input type="checkbox" id="term-3" value="term-3" name="taxonomy-1">
<label for="term-3">Term 3</label>
<pre id="output"></pre>