How to use Jquery Query Builder in Angular

问题:

Looking for a way of using the jQuery Query Builder in my angular-cli project.

First I've tried using the plugin laplasianin/angular-jqueryQueryBuilder, but I miss instructions on how to actually import this into my component. I am very novice at angular/typescript.

Then I've tried it on my own by installing the builder package: npm install jQuery-QueryBuilder

I've added it to my component, just like jQuery. This is the resulting example code, based on the following demo:

import {AfterViewInit, Component} from "@angular/core";
import * as jQuery from "jquery";
import "jQuery-QueryBuilder/dist/js/query-builder.standalone.js";
import "jQuery-QueryBuilder/dist/css/query-builder.default.css";

@Component({
    selector: 'app-query-builder',
    templateUrl: './query-builder.component.html',
    styleUrls: ['./query-builder.component.scss']
})
export class QueryBuilderComponent implements AfterViewInit{
    protected rules_basic = {
        condition: 'AND',
        rules: [{
            id: 'price',
            operator: 'less',
            value: 10.25
        }, {
            condition: 'OR',
            rules: [{
                id: 'category',
                operator: 'equal',
                value: 2
            }, {
                id: 'category',
                operator: 'equal',
                value: 1
            }]
        }]
    };

    ngAfterViewInit() {
        this.getQueryBuilder();
    }


    private getQueryBuilder() {
        // jQuery('#builder').html('appelsap');
        let queryBuilder = jQuery.fn.queryBuilder;
        jQuery('#builder').queryBuilder({
            plugins: ['bt-tooltip-errors'],

            filters: [{
                id: 'name',
                label: 'Name',
                type: 'string'
            }, {
                id: 'category',
                label: 'Category',
                type: 'integer',
                input: 'select',
                values: {
                    1: 'Books',
                    2: 'Movies',
                    3: 'Music',
                    4: 'Tools',
                    5: 'Goodies',
                    6: 'Clothes'
                },
                operators: ['equal', 'not_equal', 'in', 'not_in', 'is_null', 'is_not_null']
            }, {
                id: 'in_stock',
                label: 'In stock',
                type: 'integer',
                input: 'radio',
                values: {
                    1: 'Yes',
                    0: 'No'
                },
                operators: ['equal']
            }, {
                id: 'price',
                label: 'Price',
                type: 'double',
                validation: {
                    min: 0,
                    step: 0.01
                }
            }, {
                id: 'id',
                label: 'Identifier',
                type: 'string',
                placeholder: '____-____-____',
                operators: ['equal', 'not_equal'],
                validation: {
                    format: /^.{4}-.{4}-.{4}$/
                }
            }],

            rules: this.rules_basic
        });
    }
}

In this case the app compiles and loads, but I get the following error in return Cannot read property 'template' of undefined.

I have no clue on how to get any of this working. Would really like some help on this. Thank you.

======= EDIT As asked, this is the complete error:

ERROR TypeError: Cannot read property 'template' of undefined
    at QueryBuilder.<anonymous> (query-builder.standalone.js:415)
    at Array.forEach (<anonymous>)
    at new QueryBuilder (query-builder.standalone.js:410)
    at jQuery.fn.init.$.fn.queryBuilder (query-builder.standalone.js:3934)
    at QueryBuilderComponent.webpackJsonp.../../../../../src/app/components/application/query-builder/query-builder.component.ts.QueryBuilderComponent.getQueryBuilder (query-builder.component.ts:40)
    at QueryBuilderComponent.webpackJsonp.../../../../../src/app/components/application/query-builder/query-builder.component.ts.QueryBuilderComponent.ngAfterViewInit (query-builder.component.ts:33)
    at callProviderLifecycles (core.es5.js:11269)
    at callElementProvidersLifecycles (core.es5.js:11244)
    at callLifecycleHooksChildrenFirst (core.es5.js:11228)
    at checkAndUpdateView (core.es5.js:12325)

======= EDIT Updated the code to reflect current usage.

回答1:

Firstly, laplasianin/angular-jqueryQueryBuilder is an AngularJs (1) library.

Secondly, if you set this lines in your anglar-cli.json you will be able to make it works:

  "styles": [
    "../node_modules/bootstrap/dist/css/bootstrap.css",
    "../node_modules/jQuery-QueryBuilder/dist/css/query-builder.default.css",
    "styles.css"
  ],
  "scripts": [
    "../node_modules/jquery/dist/jquery.min.js",
    "../node_modules/bootstrap/dist/js/bootstrap.min.js",
    "../node_modules/jQuery-QueryBuilder/dist/js/query-builder.standalone.min.js"        
  ],

Your component:

import { Component, AfterViewInit } from '@angular/core';

declare var $: any;

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent implements AfterViewInit {

 protected rules_basic = {
        condition: 'AND',
        rules: [{
            id: 'price',
            operator: 'less',
            value: 10.25
        }, {
            condition: 'OR',
            rules: [{
                id: 'category',
                operator: 'equal',
                value: 2
            }, {
                id: 'category',
                operator: 'equal',
                value: 1
            }]
        }]
    };

    ngAfterViewInit() {
        this.getQueryBuilder();
    }

    private getQueryBuilder() {
        $('#builder').queryBuilder({
            plugins: ['bt-tooltip-errors'],

            filters: [{
                id: 'name',
                label: 'Name',
                type: 'string'
            }, {
                id: 'category',
                label: 'Category',
                type: 'integer',
                input: 'select',
                values: {
                    1: 'Books',
                    2: 'Movies',
                    3: 'Music',
                    4: 'Tools',
                    5: 'Goodies',
                    6: 'Clothes'
                },
                operators: ['equal', 'not_equal', 'in', 'not_in', 'is_null', 'is_not_null']
            }, {
                id: 'in_stock',
                label: 'In stock',
                type: 'integer',
                input: 'radio',
                values: {
                    1: 'Yes',
                    0: 'No'
                },
                operators: ['equal']
            }, {
                id: 'price',
                label: 'Price',
                type: 'double',
                validation: {
                    min: 0,
                    step: 0.01
                }
            }, {
                id: 'id',
                label: 'Identifier',
                type: 'string',
                placeholder: '____-____-____',
                operators: ['equal', 'not_equal'],
                validation: {
                    format: /^.{4}-.{4}-.{4}$/
                }
            }],

            rules: this.rules_basic
        });
    }

}

Don't forget:

• npm install bootstrap --save
• npm install jquery --save
• npm install jQuery-QueryBuilder --save

Unfortunately, you will not have any autocompletion but it works.