index.js 10 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. rowClassName: {
  20. type: [String, Function],
  21. default: ''
  22. },
  23. data: {
  24. type: Function,
  25. required: true
  26. },
  27. pageNum: {
  28. type: Number,
  29. default: 1
  30. },
  31. pageSize: {
  32. type: Number,
  33. default: 20
  34. },
  35. showSizeChanger: {
  36. type: Boolean,
  37. default: true
  38. },
  39. size: {
  40. type: String,
  41. default: 'default'
  42. },
  43. /**
  44. * alert: {
  45. * show: true,
  46. * clear: Function
  47. * }
  48. */
  49. alert: {
  50. type: [Object, Boolean],
  51. default: null
  52. },
  53. rowSelection: {
  54. type: Object,
  55. default: null
  56. },
  57. /** @Deprecated */
  58. showAlertInfo: {
  59. type: Boolean,
  60. default: false
  61. },
  62. showPagination: {
  63. type: String | Boolean,
  64. default: 'auto'
  65. },
  66. /**
  67. * enable page URI mode
  68. *
  69. * e.g:
  70. * /users/1
  71. * /users/2
  72. * /users/3?queryParam=test
  73. * ...
  74. */
  75. pageURI: {
  76. type: Boolean,
  77. default: false
  78. },
  79. /** 是否首次加载数据 */
  80. defaultLoadData: {
  81. type: Boolean,
  82. default: true
  83. },
  84. tableId: {
  85. type: String,
  86. default: ''
  87. },
  88. index: {
  89. type: [String, Number],
  90. default: ''
  91. }
  92. }),
  93. watch: {
  94. 'localPagination.current' (val) {
  95. this.pageURI && this.$router.push({
  96. ...this.$route,
  97. name: this.$route.name,
  98. params: Object.assign({}, this.$route.params, {
  99. pageNo: val
  100. })
  101. })
  102. },
  103. pageNum (val) {
  104. Object.assign(this.localPagination, {
  105. current: val
  106. })
  107. },
  108. pageSize (val) {
  109. Object.assign(this.localPagination, {
  110. pageSize: val
  111. })
  112. },
  113. showSizeChanger (val) {
  114. Object.assign(this.localPagination, {
  115. showSizeChanger: val
  116. })
  117. }
  118. },
  119. created () {
  120. const { pageNo } = this.$route.params
  121. const localPageNum = this.pageURI && (pageNo && parseInt(pageNo)) || this.pageNum
  122. this.localPagination = ['auto', true].includes(this.showPagination) && Object.assign({}, this.localPagination, {
  123. current: localPageNum,
  124. pageSize: this.pageSize,
  125. showTotal: total => `共 ${total} 条记录`,
  126. showSizeChanger: this.showSizeChanger
  127. }) || false
  128. // console.log('this.localPagination', this.localPagination)
  129. this.needTotalList = this.initTotalList(this.columns)
  130. if (this.defaultLoadData) {
  131. this.loadData()
  132. }
  133. },
  134. methods: {
  135. /**
  136. * 表格重新加载方法
  137. * 如果参数为 true, 则强制刷新到第一页
  138. * @param Boolean bool
  139. */
  140. refresh (bool = false) {
  141. bool && (this.localPagination = Object.assign({}, {
  142. current: 1, pageSize: this.pageSize
  143. }))
  144. this.loadData()
  145. },
  146. // 重置表格为空
  147. clearTable () {
  148. this.localDataSource = []
  149. this.localPagination = Object.assign({}, {
  150. current: 1, pageSize: this.pageSize, total: 0
  151. })
  152. },
  153. /**
  154. * 加载数据方法
  155. * @param {Object} pagination 分页选项器
  156. * @param {Object} filters 过滤条件
  157. * @param {Object} sorter 排序条件
  158. */
  159. loadData (pagination, filters, sorter) {
  160. this.localLoading = true
  161. const parameter = Object.assign({
  162. pageNo: (pagination && pagination.current) ||
  163. this.showPagination && this.localPagination.current || this.pageNum,
  164. pageSize: (pagination && pagination.pageSize) ||
  165. this.showPagination && this.localPagination.pageSize || this.pageSize,
  166. tableId: this.tableId,
  167. index: this.index
  168. },
  169. (sorter && sorter.field && {
  170. sortField: sorter.field
  171. }) || {},
  172. (sorter && sorter.order && {
  173. sortOrder: sorter.order
  174. }) || {}, {
  175. ...filters
  176. }
  177. )
  178. // console.log('parameter', parameter)
  179. const result = this.data(parameter)
  180. // 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
  181. // eslint-disable-next-line
  182. if ((typeof result === 'object' || typeof result === 'function') && typeof result.then === 'function') {
  183. result.then(r => {
  184. const list = r.list || r.data || r
  185. // console.log(r,'rrrrrrrrrr')
  186. this.localPagination = this.showPagination && Object.assign({}, this.localPagination, {
  187. current: r.pageNo, // 返回结果中的当前分页数
  188. total: Number(r.count), // 返回结果中的总记录数
  189. showSizeChanger: this.showSizeChanger,
  190. pageSize: (pagination && pagination.pageSize) ||
  191. this.localPagination.pageSize
  192. }) || false
  193. // 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
  194. if (list.length === 0 && this.showPagination && this.localPagination.current > 1) {
  195. this.localPagination.current--
  196. this.loadData()
  197. return
  198. }
  199. // 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
  200. // 当情况满足时,表示数据不满足分页大小,关闭 table 分页功能
  201. try {
  202. if ((['auto', true].includes(this.showPagination) && r.count <= (r.pageNo * this.localPagination.pageSize))) {
  203. // this.localPagination.hideOnSinglePage = true
  204. }
  205. } catch (e) {
  206. this.localPagination = false
  207. }
  208. this.localDataSource = list // 返回结果中的数组数据
  209. this.localLoading = false
  210. })
  211. }
  212. },
  213. initTotalList (columns) {
  214. const totalList = []
  215. columns && columns instanceof Array && columns.forEach(column => {
  216. if (column.needTotal) {
  217. totalList.push({
  218. ...column,
  219. total: 0
  220. })
  221. }
  222. })
  223. return totalList
  224. },
  225. /**
  226. * 用于更新已选中的列表数据 total 统计
  227. * @param selectedRowKeys
  228. * @param selectedRows
  229. */
  230. updateSelect (selectedRowKeys, selectedRows) {
  231. this.selectedRows = selectedRows
  232. this.selectedRowKeys = selectedRowKeys
  233. const list = this.needTotalList
  234. this.needTotalList = list.map(item => {
  235. return {
  236. ...item,
  237. total: selectedRows.reduce((sum, val) => {
  238. const total = sum + parseInt(get(val, item.dataIndex))
  239. return isNaN(total) ? 0 : total
  240. }, 0)
  241. }
  242. })
  243. },
  244. /**
  245. * 清空 table 已选中项
  246. */
  247. clearSelected () {
  248. if (this.rowSelection) {
  249. this.rowSelection.onChange([], [])
  250. this.updateSelect([], [])
  251. }
  252. },
  253. /**
  254. * 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
  255. * @param callback
  256. * @returns {*}
  257. */
  258. renderClear (callback) {
  259. if (this.selectedRowKeys.length <= 0) return null
  260. return (
  261. <a style="margin-left: 24px" onClick={() => {
  262. callback()
  263. this.clearSelected()
  264. }}>清空</a>
  265. )
  266. },
  267. renderAlert () {
  268. // 绘制统计列数据
  269. const needTotalItems = this.needTotalList.map((item) => {
  270. return (<span style="margin-right: 12px">
  271. {item.title}总计 <a style="font-weight: 600">{!item.customRender ? item.total : item.customRender(item.total)}</a>
  272. </span>)
  273. })
  274. // 绘制 清空 按钮
  275. const clearItem = (typeof this.alert.clear === 'boolean' && this.alert.clear) ? (
  276. this.renderClear(this.clearSelected)
  277. ) : (this.alert !== null && typeof this.alert.clear === 'function') ? (
  278. this.renderClear(this.alert.clear)
  279. ) : null
  280. // 绘制 alert 组件
  281. return (
  282. <a-alert showIcon={true} style="margin-bottom: 16px">
  283. <template slot="message">
  284. <span style="margin-right: 12px">已选择: <a style="font-weight: 600">{this.selectedRows.length}</a></span>
  285. {needTotalItems}
  286. {clearItem}
  287. </template>
  288. </a-alert>
  289. )
  290. }
  291. },
  292. render () {
  293. const props = {}
  294. const localKeys = Object.keys(this.$data)
  295. const showAlert = (typeof this.alert === 'object' && this.alert !== null && this.alert.show) && typeof this.rowSelection.selectedRowKeys !== 'undefined' || this.alert
  296. Object.keys(T.props).forEach(k => {
  297. const localKey = `local${k.substring(0, 1).toUpperCase()}${k.substring(1)}`
  298. if (localKeys.includes(localKey)) {
  299. props[k] = this[localKey]
  300. return props[k]
  301. }
  302. if (k === 'rowSelection') {
  303. if (showAlert && this.rowSelection) {
  304. // 如果需要使用alert,则重新绑定 rowSelection 事件
  305. // console.log('this.rowSelection', this.rowSelection)
  306. props[k] = {
  307. ...this.rowSelection,
  308. selectedRows: this.selectedRows,
  309. selectedRowKeys: this.selectedRowKeys,
  310. onChange: (selectedRowKeys, selectedRows) => {
  311. this.updateSelect(selectedRowKeys, selectedRows)
  312. typeof this[k].onChange !== 'undefined' && this[k].onChange(selectedRowKeys, selectedRows)
  313. }
  314. }
  315. return props[k]
  316. } else if (!this.rowSelection) {
  317. // 如果没打算开启 rowSelection 则清空默认的选择项
  318. props[k] = null
  319. return props[k]
  320. }
  321. }
  322. this[k] && (props[k] = this[k])
  323. return props[k]
  324. })
  325. const table = (
  326. <a-table {...{ props, scopedSlots: { ...this.$scopedSlots } }} onChange={this.loadData}>
  327. { Object.keys(this.$slots).map(name => (<template slot={name}>{this.$slots[name]}</template>)) }
  328. </a-table>
  329. )
  330. return (
  331. <div class="table-wrapper">
  332. { showAlert ? this.renderAlert() : null }
  333. { table }
  334. </div>
  335. )
  336. }
  337. }