You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 

362 lines
6.6 KiB

const events = {
load: 'load',
error: 'error'
}
const pageMode = {
add: 'add',
replace: 'replace'
}
const attrs = [
'pageCurrent',
'pageSize',
'collection',
'action',
'field',
'getcount',
'orderby',
'where'
]
export default {
props: {
collection: {
type: String,
default: ''
},
action: {
type: String,
default: ''
},
field: {
type: String,
default: ''
},
pageData: {
type: String,
default: 'add'
},
pageCurrent: {
type: Number,
default: 1
},
pageSize: {
type: Number,
default: 20
},
getcount: {
type: [Boolean, String],
default: false
},
orderby: {
type: String,
default: ''
},
where: {
type: [String, Object],
default: ''
},
getone: {
type: [Boolean, String],
default: false
},
manual: {
type: Boolean,
default: false
}
},
data() {
return {
loading: false,
listData: this.getone ? {} : [],
paginationInternal: {
current: this.pageCurrent,
size: this.pageSize,
count: 0
},
errorMessage: ''
}
},
created() {
let db = null;
let dbCmd = null;
if(this.collection){
this.db = uniCloud.database();
this.dbCmd = this.db.command;
}
this._isEnded = false
this.$watch(() => {
var al = []
attrs.forEach(key => {
al.push(this[key])
})
return al
}, (newValue, oldValue) => {
this.paginationInternal.pageSize = this.pageSize
let needReset = false
for (let i = 2; i < newValue.length; i++) {
if (newValue[i] != oldValue[i]) {
needReset = true
break
}
}
if (needReset) {
this.clear()
this.reset()
}
if (newValue[0] != oldValue[0]) {
this.paginationInternal.current = this.pageCurrent
}
this._execLoadData()
})
// #ifdef H5
if (process.env.NODE_ENV === 'development') {
this._debugDataList = []
if (!window.unidev) {
window.unidev = {
clientDB: {
data: []
}
}
}
unidev.clientDB.data.push(this._debugDataList)
}
// #endif
// #ifdef MP-TOUTIAO
let changeName
let events = this.$scope.dataset.eventOpts
for (var i = 0; i < events.length; i++) {
let event = events[i]
if (event[0].includes('^load')) {
changeName = event[1][0][0]
}
}
if (changeName) {
let parent = this.$parent
let maxDepth = 16
this._changeDataFunction = null
while (parent && maxDepth > 0) {
let fun = parent[changeName]
if (fun && typeof fun === 'function') {
this._changeDataFunction = fun
maxDepth = 0
break
}
parent = parent.$parent
maxDepth--;
}
}
// #endif
// if (!this.manual) {
// this.loadData()
// }
},
// #ifdef H5
beforeDestroy() {
if (process.env.NODE_ENV === 'development' && window.unidev) {
var cd = this._debugDataList
var dl = unidev.clientDB.data
for (var i = dl.length - 1; i >= 0; i--) {
if (dl[i] === cd) {
dl.splice(i, 1)
break
}
}
}
},
// #endif
methods: {
loadData(args1, args2) {
let callback = null
if (typeof args1 === 'object') {
if (args1.clear) {
this.clear()
this.reset()
}
if (args1.current !== undefined) {
this.paginationInternal.current = args1.current
}
if (typeof args2 === 'function') {
callback = args2
}
} else if (typeof args1 === 'function') {
callback = args1
}
this._execLoadData(callback)
},
loadMore() {
if (this._isEnded) {
return
}
this._execLoadData()
},
refresh() {
this.clear()
this._execLoadData()
},
clear() {
this._isEnded = false
this.listData = []
},
reset() {
this.paginationInternal.current = 1
},
remove(id, {
action,
callback,
confirmTitle,
confirmContent
} = {}) {
if (!id || !id.length) {
return
}
uni.showModal({
title: confirmTitle || '提示',
content: confirmContent || '是否删除该数据',
showCancel: true,
success: (res) => {
if (!res.confirm) {
return
}
this._execRemove(id, action, callback)
}
})
},
_execLoadData(callback) {
if (this.loading) {
return
}
this.loading = true
this.errorMessage = ''
this._getExec().then((res) => {
this.loading = false
const {
data,
count
} = res.result
this._isEnded = data.length < this.pageSize
callback && callback(data, this._isEnded)
this._dispatchEvent(events.load, data)
if (this.getone) {
this.listData = data.length ? data[0] : undefined
} else if (this.pageData === pageMode.add) {
this.listData.push(...data)
if (this.listData.length) {
this.paginationInternal.current++
}
} else if (this.pageData === pageMode.replace) {
this.listData = data
this.paginationInternal.count = count
}
// #ifdef H5
if (process.env.NODE_ENV === 'development') {
this._debugDataList.length = 0
this._debugDataList.push(...JSON.parse(JSON.stringify(this.listData)))
}
// #endif
}).catch((err) => {
this.loading = false
this.errorMessage = err
callback && callback()
this.$emit(events.error, err)
})
},
_getExec() {
let exec = this.db
if (this.action) {
exec = exec.action(this.action)
}
exec = exec.collection(this.collection)
if (!(!this.where || !Object.keys(this.where).length)) {
exec = exec.where(this.where)
}
if (this.field) {
exec = exec.field(this.field)
}
if (this.orderby) {
exec = exec.orderBy(this.orderby)
}
const {
current,
size
} = this.paginationInternal
exec = exec.skip(size * (current - 1)).limit(size).get({
getCount: this.getcount
})
return exec
},
_execRemove(id, action, callback) {
if (!this.collection || !id) {
return
}
const ids = Array.isArray(id) ? id : [id]
if (!ids.length) {
return
}
uni.showLoading({
mask: true
})
let exec = this.db
if (action) {
exec = exec.action(action)
}
exec.collection(this.collection).where({
_id: dbCmd.in(ids)
}).remove().then((res) => {
callback && callback(res.result)
if (this.pageData === pageMode.replace) {
this.refresh()
} else {
this.removeData(ids)
}
}).catch((err) => {
uni.showModal({
content: err.message,
showCancel: false
})
}).finally(() => {
uni.hideLoading()
})
},
removeData(ids) {
let il = ids.slice(0)
let dl = this.listData
for (let i = dl.length - 1; i >= 0; i--) {
let index = il.indexOf(dl[i]._id)
if (index >= 0) {
dl.splice(i, 1)
il.splice(index, 1)
}
}
},
_dispatchEvent(type, data) {
if (this._changeDataFunction) {
this._changeDataFunction(data, this._isEnded)
} else {
this.$emit(type, data, this._isEnded)
}
}
}
}