index.js 9.5 KB

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  1. import T from 'ant-design-vue/es/table/Table'
  2. import get from 'lodash.get'
  3. export default {
  4. data () {
  5. return {
  6. needTotalList: [],
  7. selectedRows: [],
  8. selectedRowKeys: [],
  9. localLoading: false,
  10. localDataSource: [],
  11. localPagination: Object.assign({}, this.pagination)
  12. }
  13. },
  14. props: Object.assign({}, T.props, {
  15. rowKey: {
  16. type: [String, Function],
  17. default: 'key'
  18. },
  19. data: {
  20. type: Function,
  21. required: true
  22. },
  23. pageNum: {
  24. type: Number,
  25. default: 1
  26. },
  27. pageSize: {
  28. type: Number,
  29. default: 10
  30. },
  31. showSizeChanger: {
  32. type: Boolean,
  33. default: true
  34. },
  35. size: {
  36. type: String,
  37. default: 'default'
  38. },
  39. /**
  40. * alert: {
  41. * show: true,
  42. * clear: Function
  43. * }
  44. */
  45. alert: {
  46. type: [Object, Boolean],
  47. default: null
  48. },
  49. rowSelection: {
  50. type: Object,
  51. default: null
  52. },
  53. /** @Deprecated */
  54. showAlertInfo: {
  55. type: Boolean,
  56. default: false
  57. },
  58. showPagination: {
  59. type: String | Boolean,
  60. default: 'auto'
  61. },
  62. /**
  63. * enable page URI mode
  64. *
  65. * e.g:
  66. * /users/1
  67. * /users/2
  68. * /users/3?queryParam=test
  69. * ...
  70. */
  71. pageURI: {
  72. type: Boolean,
  73. default: false
  74. }
  75. }),
  76. watch: {
  77. 'localPagination.current' (val) {
  78. this.pageURI && this.$router.push({
  79. ...this.$route,
  80. name: this.$route.name,
  81. params: Object.assign({}, this.$route.params, {
  82. pageNo: val
  83. })
  84. })
  85. },
  86. pageNum (val) {
  87. Object.assign(this.localPagination, {
  88. current: val
  89. })
  90. },
  91. pageSize (val) {
  92. Object.assign(this.localPagination, {
  93. pageSize: val
  94. })
  95. },
  96. showSizeChanger (val) {
  97. Object.assign(this.localPagination, {
  98. showSizeChanger: val
  99. })
  100. }
  101. },
  102. created () {
  103. const { pageNo } = this.$route.params
  104. const localPageNum = this.pageURI && (pageNo && parseInt(pageNo)) || this.pageNum
  105. this.localPagination = ['auto', true].includes(this.showPagination) && Object.assign({}, this.localPagination, {
  106. current: localPageNum,
  107. pageSize: this.pageSize,
  108. showSizeChanger: this.showSizeChanger
  109. }) || false
  110. // console.log('this.localPagination', this.localPagination)
  111. this.needTotalList = this.initTotalList(this.columns)
  112. this.loadData()
  113. },
  114. methods: {
  115. /**
  116. * 表格重新加载方法
  117. * 如果参数为 true, 则强制刷新到第一页
  118. * @param Boolean bool
  119. */
  120. refresh (bool = false) {
  121. bool && (this.localPagination = Object.assign({}, {
  122. current: 1, pageSize: this.pageSize
  123. }))
  124. this.loadData()
  125. },
  126. /**
  127. * 加载数据方法
  128. * @param {Object} pagination 分页选项器
  129. * @param {Object} filters 过滤条件
  130. * @param {Object} sorter 排序条件
  131. */
  132. loadData (pagination, filters, sorter) {
  133. this.localLoading = true
  134. const parameter = Object.assign({
  135. pageNo: (pagination && pagination.current) ||
  136. this.showPagination && this.localPagination.current || this.pageNum,
  137. pageSize: (pagination && pagination.pageSize) ||
  138. this.showPagination && this.localPagination.pageSize || this.pageSize
  139. },
  140. (sorter && sorter.field && {
  141. sortField: sorter.field
  142. }) || {},
  143. (sorter && sorter.order && {
  144. sortOrder: sorter.order
  145. }) || {}, {
  146. ...filters
  147. }
  148. )
  149. // console.log('parameter', parameter)
  150. const result = this.data(parameter)
  151. // 对接自己的通用数据接口需要修改下方代码中的 r.pageNo, r.count, r.data
  152. // eslint-disable-next-line
  153. if ((typeof result === 'object' || typeof result === 'function') && typeof result.then === 'function') {
  154. result.then(r => {
  155. const list = r.list || r.data || r
  156. // console.log(r, 'rrrrrrrrrr')
  157. this.localPagination = this.showPagination && Object.assign({}, this.localPagination, {
  158. current: r.pageNo, // 返回结果中的当前分页数
  159. total: Number(r.count), // 返回结果中的总记录数
  160. showSizeChanger: this.showSizeChanger,
  161. pageSize: (pagination && pagination.pageSize) ||
  162. this.localPagination.pageSize
  163. }) || false
  164. // 为防止删除数据后导致页面当前页面数据长度为 0 ,自动翻页到上一页
  165. if (list.length === 0 && this.showPagination && this.localPagination.current > 1) {
  166. this.localPagination.current--
  167. this.loadData()
  168. return
  169. }
  170. // 这里用于判断接口是否有返回 r.count 且 this.showPagination = true 且 pageNo 和 pageSize 存在 且 count 小于等于 pageNo * pageSize 的大小
  171. // 当情况满足时,表示数据不满足分页大小,关闭 table 分页功能
  172. try {
  173. if ((['auto', true].includes(this.showPagination) && r.count <= (r.pageNo * this.localPagination.pageSize))) {
  174. this.localPagination.hideOnSinglePage = true
  175. }
  176. } catch (e) {
  177. this.localPagination = false
  178. }
  179. // console.log('loadData -> this.localPagination', this.localPagination)
  180. this.localDataSource = list // 返回结果中的数组数据
  181. this.localLoading = false
  182. })
  183. }
  184. },
  185. initTotalList (columns) {
  186. const totalList = []
  187. columns && columns instanceof Array && columns.forEach(column => {
  188. if (column.needTotal) {
  189. totalList.push({
  190. ...column,
  191. total: 0
  192. })
  193. }
  194. })
  195. return totalList
  196. },
  197. /**
  198. * 用于更新已选中的列表数据 total 统计
  199. * @param selectedRowKeys
  200. * @param selectedRows
  201. */
  202. updateSelect (selectedRowKeys, selectedRows) {
  203. this.selectedRows = selectedRows
  204. this.selectedRowKeys = selectedRowKeys
  205. const list = this.needTotalList
  206. this.needTotalList = list.map(item => {
  207. return {
  208. ...item,
  209. total: selectedRows.reduce((sum, val) => {
  210. const total = sum + parseInt(get(val, item.dataIndex))
  211. return isNaN(total) ? 0 : total
  212. }, 0)
  213. }
  214. })
  215. },
  216. /**
  217. * 清空 table 已选中项
  218. */
  219. clearSelected () {
  220. if (this.rowSelection) {
  221. this.rowSelection.onChange([], [])
  222. this.updateSelect([], [])
  223. }
  224. },
  225. /**
  226. * 处理交给 table 使用者去处理 clear 事件时,内部选中统计同时调用
  227. * @param callback
  228. * @returns {*}
  229. */
  230. renderClear (callback) {
  231. if (this.selectedRowKeys.length <= 0) return null
  232. return (
  233. <a style="margin-left: 24px" onClick={() => {
  234. callback()
  235. this.clearSelected()
  236. }}>清空</a>
  237. )
  238. },
  239. renderAlert () {
  240. // 绘制统计列数据
  241. const needTotalItems = this.needTotalList.map((item) => {
  242. return (<span style="margin-right: 12px">
  243. {item.title}总计 <a style="font-weight: 600">{!item.customRender ? item.total : item.customRender(item.total)}</a>
  244. </span>)
  245. })
  246. // 绘制 清空 按钮
  247. const clearItem = (typeof this.alert.clear === 'boolean' && this.alert.clear) ? (
  248. this.renderClear(this.clearSelected)
  249. ) : (this.alert !== null && typeof this.alert.clear === 'function') ? (
  250. this.renderClear(this.alert.clear)
  251. ) : null
  252. // 绘制 alert 组件
  253. return (
  254. <a-alert showIcon={true} style="margin-bottom: 16px">
  255. <template slot="message">
  256. <span style="margin-right: 12px">已选择: <a style="font-weight: 600">{this.selectedRows.length}</a></span>
  257. {needTotalItems}
  258. {clearItem}
  259. </template>
  260. </a-alert>
  261. )
  262. }
  263. },
  264. render () {
  265. const props = {}
  266. const localKeys = Object.keys(this.$data)
  267. const showAlert = (typeof this.alert === 'object' && this.alert !== null && this.alert.show) && typeof this.rowSelection.selectedRowKeys !== 'undefined' || this.alert
  268. Object.keys(T.props).forEach(k => {
  269. const localKey = `local${k.substring(0, 1).toUpperCase()}${k.substring(1)}`
  270. if (localKeys.includes(localKey)) {
  271. props[k] = this[localKey]
  272. return props[k]
  273. }
  274. if (k === 'rowSelection') {
  275. if (showAlert && this.rowSelection) {
  276. // 如果需要使用alert,则重新绑定 rowSelection 事件
  277. console.log('this.rowSelection', this.rowSelection)
  278. props[k] = {
  279. ...this.rowSelection,
  280. selectedRows: this.selectedRows,
  281. selectedRowKeys: this.selectedRowKeys,
  282. onChange: (selectedRowKeys, selectedRows) => {
  283. this.updateSelect(selectedRowKeys, selectedRows)
  284. typeof this[k].onChange !== 'undefined' && this[k].onChange(selectedRowKeys, selectedRows)
  285. }
  286. }
  287. return props[k]
  288. } else if (!this.rowSelection) {
  289. // 如果没打算开启 rowSelection 则清空默认的选择项
  290. props[k] = null
  291. return props[k]
  292. }
  293. }
  294. this[k] && (props[k] = this[k])
  295. return props[k]
  296. })
  297. const table = (
  298. <a-table {...{ props, scopedSlots: { ...this.$scopedSlots } }} onChange={this.loadData}>
  299. { Object.keys(this.$slots).map(name => (<template slot={name}>{this.$slots[name]}</template>)) }
  300. </a-table>
  301. )
  302. return (
  303. <div class="table-wrapper">
  304. { showAlert ? this.renderAlert() : null }
  305. { table }
  306. </div>
  307. )
  308. }
  309. }