JTreeTable.vue
4.35 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
<template>
<a-table
:rowKey="rowKey"
:columns="columns"
:dataSource="dataSource"
:expandedRowKeys="expandedRowKeys"
v-bind="tableAttrs"
v-on="$listeners"
@expand="handleExpand"
@expandedRowsChange="expandedRowKeys=$event">
<template v-for="(slotItem) of slots" :slot="slotItem" slot-scope="text, record, index">
<slot :name="slotItem" v-bind="{text,record,index}"></slot>
</template>
</a-table>
</template>
<script>
import {getAction} from '@/api/manage'
export default {
name: 'JTreeTable',
props: {
rowKey: {
type: String,
default: 'id'
},
// 根据什么查询，如果传递 id 就根据 id 查询
queryKey: {
type: String,
default: 'parentId'
},
queryParams: {
type: Object,
default: () => ({})
},
// 查询顶级时的值，如果顶级为0，则传0
topValue: {
type: String,
default: null
},
columns: {
type: Array,
required: true
},
url: {
type: String,
required: true
},
childrenUrl: {
type: String,
default: null
},
tableProps: {
type: Object,
default: () => ({})
},
/** 是否在创建组件的时候就查询数据 */
immediateRequest: {
type: Boolean,
default: true
},
condition: {
type: String,
default: '',
required: false
}
},
data() {
return {
dataSource: [],
expandedRowKeys: []
}
},
computed: {
getChildrenUrl() {
if (this.childrenUrl) {
return this.childrenUrl
} else {
return this.url
}
},
slots() {
let slots = []
for (let column of this.columns) {
if (column.scopedSlots && column.scopedSlots.customRender) {
slots.push(column.scopedSlots.customRender)
}
}
return slots
},
tableAttrs() {
return Object.assign(this.$attrs, this.tableProps)
}
},
watch: {
queryParams: {
deep: true,
handler() {
this.loadData()
}
}
},
created() {
if (this.immediateRequest) this.loadData()
},
methods: {
/** 加载数据*/
loadData(id = this.topValue, first = true, url = this.url) {
this.$emit('requestBefore', {first})
if (first) {
this.expandedRowKeys = []
}
let params = Object.assign({}, this.queryParams || {})
params[this.queryKey] = id
if (this.condition && this.condition.length > 0) {
params['condition'] = this.condition
}
return getAction(url, params).then(res => {
let list = []
if (res.result instanceof Array) {
list = res.result
} else if (res.result.records instanceof Array) {
list = res.result.records
} else {
throw '返回数据类型不识别'
}
let dataSource = list.map(item => {
// 判断是否标记了带有子级
if (item.hasChildren === true) {
// 查找第一个带有dataIndex的值的列
let firstColumn
for (let column of this.columns) {
firstColumn = column.dataIndex
if (firstColumn) break
}
// 定义默认展开时显示的loading子级，实际子级数据只在展开时加载
let loadChild = {id: `${item.id}_loadChild`, [firstColumn]: 'loading...', isLoading: true}
item.children = [loadChild]
}
return item
})
if (first) {
this.dataSource = dataSource
}
this.$emit('requestSuccess', {first, dataSource, res})
return Promise.resolve(dataSource)
}).finally(() => this.$emit('requestFinally', {first}))
},
/** 点击展开图标时触发 */
handleExpand(expanded, record) {
// 判断是否是展开状态
if (expanded) {
// 判断子级的首个项的标记是否是“正在加载中”，如果是就加载数据
if (record.children[0].isLoading === true) {
this.loadData(record.id, false, this.getChildrenUrl).then(dataSource => {
// 处理好的数据可直接赋值给children
if (dataSource.length === 0) {
record.children = null
} else {
record.children = dataSource
}
})
}
}
}
}
}
</script>
<style scoped>
</style>