564 lines
13 KiB
JavaScript
564 lines
13 KiB
JavaScript
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export default {
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props: {
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localdata: {
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type: [Array, Object],
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default () {
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return []
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}
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},
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spaceInfo: {
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type: Object,
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default () {
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return {}
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}
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},
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collection: {
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type: String,
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default: ''
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},
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action: {
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type: String,
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default: ''
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},
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field: {
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type: String,
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default: ''
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},
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orderby: {
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type: String,
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default: ''
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},
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where: {
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type: [String, Object],
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default: ''
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},
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pageData: {
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type: String,
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default: 'add'
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},
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pageCurrent: {
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type: Number,
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default: 1
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},
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pageSize: {
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type: Number,
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default: 20
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},
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getcount: {
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type: [Boolean, String],
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default: false
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},
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getone: {
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type: [Boolean, String],
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default: false
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},
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gettree: {
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type: [Boolean, String],
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default: false
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},
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manual: {
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type: Boolean,
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default: false
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},
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value: {
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type: [Array, String, Number],
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default () {
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return []
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}
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},
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modelValue: {
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type: [Array, String, Number],
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default () {
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return []
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}
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},
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preload: {
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type: Boolean,
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default: false
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},
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stepSearh: {
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type: Boolean,
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default: true
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},
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selfField: {
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type: String,
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default: ''
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},
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parentField: {
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type: String,
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default: ''
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},
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multiple: {
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type: Boolean,
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default: false
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},
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map: {
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type: Object,
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default() {
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return {
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text: "text",
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value: "value"
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}
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}
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}
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},
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data() {
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return {
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loading: false,
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errorMessage: '',
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loadMore: {
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contentdown: '',
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contentrefresh: '',
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contentnomore: ''
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},
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dataList: [],
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selected: [],
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selectedIndex: 0,
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page: {
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current: this.pageCurrent,
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size: this.pageSize,
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count: 0
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}
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}
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},
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computed: {
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isLocaldata() {
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return !this.collection.length
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},
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postField() {
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let fields = [this.field];
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if (this.parentField) {
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fields.push(`${this.parentField} as parent_value`);
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}
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return fields.join(',');
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},
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dataValue() {
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let isModelValue = Array.isArray(this.modelValue) ? (this.modelValue.length > 0) : (this.modelValue !== null || this.modelValue !== undefined)
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return isModelValue ? this.modelValue : this.value
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},
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hasValue() {
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if (typeof this.dataValue === 'number') {
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return true
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}
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return (this.dataValue != null) && (this.dataValue.length > 0)
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}
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},
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created() {
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this.$watch(() => {
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var al = [];
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['pageCurrent',
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'pageSize',
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'spaceInfo',
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'value',
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'modelValue',
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'localdata',
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'collection',
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'action',
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'field',
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'orderby',
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'where',
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'getont',
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'getcount',
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'gettree'
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].forEach(key => {
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al.push(this[key])
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});
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return al
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}, (newValue, oldValue) => {
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let needReset = false
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for (let i = 2; i < newValue.length; i++) {
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if (newValue[i] != oldValue[i]) {
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needReset = true
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break
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}
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}
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if (newValue[0] != oldValue[0]) {
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this.page.current = this.pageCurrent
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}
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this.page.size = this.pageSize
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this.onPropsChange()
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})
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this._treeData = []
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},
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methods: {
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onPropsChange() {
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this._treeData = []
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},
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getCommand(options = {}) {
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/* eslint-disable no-undef */
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let db = uniCloud.database(this.spaceInfo)
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const action = options.action || this.action
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if (action) {
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db = db.action(action)
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}
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const collection = options.collection || this.collection
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db = db.collection(collection)
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const where = options.where || this.where
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if (!(!where || !Object.keys(where).length)) {
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db = db.where(where)
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}
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const field = options.field || this.field
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if (field) {
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db = db.field(field)
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}
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const orderby = options.orderby || this.orderby
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if (orderby) {
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db = db.orderBy(orderby)
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}
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const current = options.pageCurrent !== undefined ? options.pageCurrent : this.page.current
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const size = options.pageSize !== undefined ? options.pageSize : this.page.size
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const getCount = options.getcount !== undefined ? options.getcount : this.getcount
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const getTree = options.gettree !== undefined ? options.gettree : this.gettree
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const getOptions = {
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getCount,
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getTree
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}
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if (options.getTreePath) {
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getOptions.getTreePath = options.getTreePath
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}
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db = db.skip(size * (current - 1)).limit(size).get(getOptions)
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return db
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},
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getNodeData(callback) {
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if (this.loading) {
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return
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}
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this.loading = true
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this.getCommand({
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field: this.postField,
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where: this._pathWhere()
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}).then((res) => {
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this.loading = false
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this.selected = res.result.data
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callback && callback()
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}).catch((err) => {
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this.loading = false
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this.errorMessage = err
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})
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},
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getTreePath(callback) {
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if (this.loading) {
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return
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}
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this.loading = true
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this.getCommand({
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field: this.postField,
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getTreePath: {
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startWith: `${this.selfField}=='${this.dataValue}'`
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}
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}).then((res) => {
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this.loading = false
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let treePath = []
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this._extractTreePath(res.result.data, treePath)
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this.selected = treePath
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callback && callback()
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}).catch((err) => {
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this.loading = false
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this.errorMessage = err
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})
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},
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loadData() {
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if (this.isLocaldata) {
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this._processLocalData()
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return
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}
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if (this.dataValue != null) {
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this._loadNodeData((data) => {
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this._treeData = data
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this._updateBindData()
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this._updateSelected()
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})
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return
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}
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if (this.stepSearh) {
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this._loadNodeData((data) => {
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this._treeData = data
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this._updateBindData()
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})
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} else {
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this._loadAllData((data) => {
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this._treeData = []
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this._extractTree(data, this._treeData, null)
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this._updateBindData()
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})
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}
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},
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_loadAllData(callback) {
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if (this.loading) {
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return
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}
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this.loading = true
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this.getCommand({
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field: this.postField,
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gettree: true,
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startwith: `${this.selfField}=='${this.dataValue}'`
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}).then((res) => {
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this.loading = false
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callback(res.result.data)
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this.onDataChange()
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}).catch((err) => {
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this.loading = false
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this.errorMessage = err
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})
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},
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_loadNodeData(callback, pw) {
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if (this.loading) {
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return
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}
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this.loading = true
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this.getCommand({
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field: this.postField,
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where: pw || this._postWhere(),
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pageSize: 500
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}).then((res) => {
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this.loading = false
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callback(res.result.data)
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this.onDataChange()
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}).catch((err) => {
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this.loading = false
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this.errorMessage = err
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})
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},
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_pathWhere() {
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let result = []
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let where_field = this._getParentNameByField();
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if (where_field) {
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result.push(`${where_field} == '${this.dataValue}'`)
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}
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if (this.where) {
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return `(${this.where}) && (${result.join(' || ')})`
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}
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return result.join(' || ')
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},
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_postWhere() {
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let result = []
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let selected = this.selected
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let parentField = this.parentField
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if (parentField) {
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result.push(`${parentField} == null || ${parentField} == ""`)
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}
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if (selected.length) {
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for (var i = 0; i < selected.length - 1; i++) {
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result.push(`${parentField} == '${selected[i].value}'`)
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}
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}
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let where = []
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if (this.where) {
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where.push(`(${this.where})`)
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}
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if (result.length) {
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where.push(`(${result.join(' || ')})`)
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}
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return where.join(' && ')
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},
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_nodeWhere() {
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let result = []
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let selected = this.selected
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if (selected.length) {
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result.push(`${this.parentField} == '${selected[selected.length - 1].value}'`)
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}
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if (this.where) {
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return `(${this.where}) && (${result.join(' || ')})`
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}
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return result.join(' || ')
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},
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_getParentNameByField() {
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const fields = this.field.split(',');
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let where_field = null;
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for (let i = 0; i < fields.length; i++) {
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const items = fields[i].split('as');
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if (items.length < 2) {
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continue;
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}
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if (items[1].trim() === 'value') {
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where_field = items[0].trim();
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break;
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}
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}
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return where_field
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},
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_isTreeView() {
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return (this.parentField && this.selfField)
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},
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_updateSelected() {
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var dl = this.dataList
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var sl = this.selected
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let textField = this.map.text
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let valueField = this.map.value
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for (var i = 0; i < sl.length; i++) {
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var value = sl[i].value
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var dl2 = dl[i]
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for (var j = 0; j < dl2.length; j++) {
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var item2 = dl2[j]
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if (item2[valueField] === value) {
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sl[i].text = item2[textField]
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break
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}
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}
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}
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},
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_updateBindData(node) {
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const {
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dataList,
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hasNodes
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} = this._filterData(this._treeData, this.selected)
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let isleaf = this._stepSearh === false && !hasNodes
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if (node) {
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node.isleaf = isleaf
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||
|
|
}
|
||
|
|
|
||
|
|
this.dataList = dataList
|
||
|
|
this.selectedIndex = dataList.length - 1
|
||
|
|
|
||
|
|
if (!isleaf && this.selected.length < dataList.length) {
|
||
|
|
this.selected.push({
|
||
|
|
value: null,
|
||
|
|
text: "请选择"
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
return {
|
||
|
|
isleaf,
|
||
|
|
hasNodes
|
||
|
|
}
|
||
|
|
},
|
||
|
|
_filterData(data, paths) {
|
||
|
|
let dataList = []
|
||
|
|
let hasNodes = true
|
||
|
|
|
||
|
|
dataList.push(data.filter((item) => {
|
||
|
|
return (item.parent_value === null || item.parent_value === undefined || item.parent_value === '')
|
||
|
|
}))
|
||
|
|
for (let i = 0; i < paths.length; i++) {
|
||
|
|
var value = paths[i].value
|
||
|
|
var nodes = data.filter((item) => {
|
||
|
|
return item.parent_value === value
|
||
|
|
})
|
||
|
|
|
||
|
|
if (nodes.length) {
|
||
|
|
dataList.push(nodes)
|
||
|
|
} else {
|
||
|
|
hasNodes = false
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return {
|
||
|
|
dataList,
|
||
|
|
hasNodes
|
||
|
|
}
|
||
|
|
},
|
||
|
|
_extractTree(nodes, result, parent_value) {
|
||
|
|
let list = result || []
|
||
|
|
let valueField = this.map.value
|
||
|
|
for (let i = 0; i < nodes.length; i++) {
|
||
|
|
let node = nodes[i]
|
||
|
|
|
||
|
|
let child = {}
|
||
|
|
for (let key in node) {
|
||
|
|
if (key !== 'children') {
|
||
|
|
child[key] = node[key]
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (parent_value !== null && parent_value !== undefined && parent_value !== '') {
|
||
|
|
child.parent_value = parent_value
|
||
|
|
}
|
||
|
|
result.push(child)
|
||
|
|
|
||
|
|
let children = node.children
|
||
|
|
if (children) {
|
||
|
|
this._extractTree(children, result, node[valueField])
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
_extractTreePath(nodes, result) {
|
||
|
|
let list = result || []
|
||
|
|
for (let i = 0; i < nodes.length; i++) {
|
||
|
|
let node = nodes[i]
|
||
|
|
|
||
|
|
let child = {}
|
||
|
|
for (let key in node) {
|
||
|
|
if (key !== 'children') {
|
||
|
|
child[key] = node[key]
|
||
|
|
}
|
||
|
|
}
|
||
|
|
result.push(child)
|
||
|
|
|
||
|
|
let children = node.children
|
||
|
|
if (children) {
|
||
|
|
this._extractTreePath(children, result)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
_findNodePath(key, nodes, path = []) {
|
||
|
|
let textField = this.map.text
|
||
|
|
let valueField = this.map.value
|
||
|
|
for (let i = 0; i < nodes.length; i++) {
|
||
|
|
let node = nodes[i]
|
||
|
|
let children = node.children
|
||
|
|
let text = node[textField]
|
||
|
|
let value = node[valueField]
|
||
|
|
|
||
|
|
path.push({
|
||
|
|
value,
|
||
|
|
text
|
||
|
|
})
|
||
|
|
|
||
|
|
if (value === key) {
|
||
|
|
return path
|
||
|
|
}
|
||
|
|
|
||
|
|
if (children) {
|
||
|
|
const p = this._findNodePath(key, children, path)
|
||
|
|
if (p.length) {
|
||
|
|
return p
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
path.pop()
|
||
|
|
}
|
||
|
|
return []
|
||
|
|
},
|
||
|
|
_processLocalData() {
|
||
|
|
this._treeData = []
|
||
|
|
this._extractTree(this.localdata, this._treeData)
|
||
|
|
|
||
|
|
var inputValue = this.dataValue
|
||
|
|
if (inputValue === undefined) {
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
if (Array.isArray(inputValue)) {
|
||
|
|
inputValue = inputValue[inputValue.length - 1]
|
||
|
|
if (typeof inputValue === 'object' && inputValue[this.map.value]) {
|
||
|
|
inputValue = inputValue[this.map.value]
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
this.selected = this._findNodePath(inputValue, this.localdata)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|