index.js 9.6 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: 10
  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. }),
  85. watch: {
  86. 'localPagination.current' (val) {
  87. this.pageURI && this.$router.push({
  88. ...this.$route,
  89. name: this.$route.name,
  90. params: Object.assign({}, this.$route.params, {
  91. pageNo: val
  92. })
  93. })
  94. },
  95. pageNum (val) {
  96. Object.assign(this.localPagination, {
  97. current: val
  98. })
  99. },
  100. pageSize (val) {
  101. Object.assign(this.localPagination, {
  102. pageSize: val
  103. })
  104. },
  105. showSizeChanger (val) {
  106. Object.assign(this.localPagination, {
  107. showSizeChanger: val
  108. })
  109. }
  110. },
  111. created () {
  112. const { pageNo } = this.$route.params
  113. const localPageNum = this.pageURI && (pageNo && parseInt(pageNo)) || this.pageNum
  114. this.localPagination = ['auto', true].includes(this.showPagination) && Object.assign({}, this.localPagination, {
  115. current: localPageNum,
  116. pageSize: this.pageSize,
  117. showSizeChanger: this.showSizeChanger
  118. }) || false
  119. console.log('this.localPagination', this.localPagination)
  120. this.needTotalList = this.initTotalList(this.columns)
  121. if(this.defaultLoadData){
  122. this.loadData()
  123. }
  124. },
  125. methods: {
  126. /**
  127. * 表格重新加载方法
  128. * 如果参数为 true, 则强制刷新到第一页
  129. * @param Boolean bool
  130. */
  131. refresh (bool = false) {
  132. bool && (this.localPagination = Object.assign({}, {
  133. current: 1, pageSize: this.pageSize
  134. }))
  135. this.loadData()
  136. },
  137. /**
  138. * 加载数据方法
  139. * @param {Object} pagination 分页选项器
  140. * @param {Object} filters 过滤条件
  141. * @param {Object} sorter 排序条件
  142. */
  143. loadData (pagination, filters, sorter) {
  144. this.localLoading = true
  145. const parameter = Object.assign({
  146. pageNo: (pagination && pagination.current) ||
  147. this.showPagination && this.localPagination.current || this.pageNum,
  148. pageSize: (pagination && pagination.pageSize) ||
  149. this.showPagination && this.localPagination.pageSize || this.pageSize
  150. },
  151. (sorter && sorter.field && {
  152. sortField: sorter.field
  153. }) || {},
  154. (sorter && sorter.order && {
  155. sortOrder: sorter.order
  156. }) || {}, {
  157. ...filters
  158. }
  159. )
  160. console.log('parameter', parameter)
  161. const result = this.data(parameter)
  162. // 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
  163. // eslint-disable-next-line
  164. if ((typeof result === 'object' || typeof result === 'function') && typeof result.then === 'function') {
  165. result.then(r => {
  166. const list = r.list || r.data || r
  167. console.log(r,'rrrrrrrrrr')
  168. this.localPagination = this.showPagination && Object.assign({}, this.localPagination, {
  169. current: r.pageNo, // 返回结果中的当前分页数
  170. total: Number(r.count), // 返回结果中的总记录数
  171. showSizeChanger: this.showSizeChanger,
  172. pageSize: (pagination && pagination.pageSize) ||
  173. this.localPagination.pageSize
  174. }) || false
  175. // 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
  176. if (list.length === 0 && this.showPagination && this.localPagination.current > 1) {
  177. this.localPagination.current--
  178. this.loadData()
  179. return
  180. }
  181. // 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
  182. // 当情况满足时,表示数据不满足分页大小,关闭 table 分页功能
  183. try {
  184. if ((['auto', true].includes(this.showPagination) && r.count <= (r.pageNo * this.localPagination.pageSize))) {
  185. // this.localPagination.hideOnSinglePage = true
  186. }
  187. } catch (e) {
  188. this.localPagination = false
  189. }
  190. this.localDataSource = list // 返回结果中的数组数据
  191. this.localLoading = false
  192. })
  193. }
  194. },
  195. initTotalList (columns) {
  196. const totalList = []
  197. columns && columns instanceof Array && columns.forEach(column => {
  198. if (column.needTotal) {
  199. totalList.push({
  200. ...column,
  201. total: 0
  202. })
  203. }
  204. })
  205. return totalList
  206. },
  207. /**
  208. * 用于更新已选中的列表数据 total 统计
  209. * @param selectedRowKeys
  210. * @param selectedRows
  211. */
  212. updateSelect (selectedRowKeys, selectedRows) {
  213. this.selectedRows = selectedRows
  214. this.selectedRowKeys = selectedRowKeys
  215. const list = this.needTotalList
  216. this.needTotalList = list.map(item => {
  217. return {
  218. ...item,
  219. total: selectedRows.reduce((sum, val) => {
  220. const total = sum + parseInt(get(val, item.dataIndex))
  221. return isNaN(total) ? 0 : total
  222. }, 0)
  223. }
  224. })
  225. },
  226. /**
  227. * 清空 table 已选中项
  228. */
  229. clearSelected () {
  230. if (this.rowSelection) {
  231. this.rowSelection.onChange([], [])
  232. this.updateSelect([], [])
  233. }
  234. },
  235. /**
  236. * 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
  237. * @param callback
  238. * @returns {*}
  239. */
  240. renderClear (callback) {
  241. if (this.selectedRowKeys.length <= 0) return null
  242. return (
  243. <a style="margin-left: 24px" onClick={() => {
  244. callback()
  245. this.clearSelected()
  246. }}>清空</a>
  247. )
  248. },
  249. renderAlert () {
  250. // 绘制统计列数据
  251. const needTotalItems = this.needTotalList.map((item) => {
  252. return (<span style="margin-right: 12px">
  253. {item.title}总计 <a style="font-weight: 600">{!item.customRender ? item.total : item.customRender(item.total)}</a>
  254. </span>)
  255. })
  256. // 绘制 清空 按钮
  257. const clearItem = (typeof this.alert.clear === 'boolean' && this.alert.clear) ? (
  258. this.renderClear(this.clearSelected)
  259. ) : (this.alert !== null && typeof this.alert.clear === 'function') ? (
  260. this.renderClear(this.alert.clear)
  261. ) : null
  262. // 绘制 alert 组件
  263. return (
  264. <a-alert showIcon={true} style="margin-bottom: 16px">
  265. <template slot="message">
  266. <span style="margin-right: 12px">已选择: <a style="font-weight: 600">{this.selectedRows.length}</a></span>
  267. {needTotalItems}
  268. {clearItem}
  269. </template>
  270. </a-alert>
  271. )
  272. }
  273. },
  274. render () {
  275. const props = {}
  276. const localKeys = Object.keys(this.$data)
  277. const showAlert = (typeof this.alert === 'object' && this.alert !== null && this.alert.show) && typeof this.rowSelection.selectedRowKeys !== 'undefined' || this.alert
  278. Object.keys(T.props).forEach(k => {
  279. const localKey = `local${k.substring(0, 1).toUpperCase()}${k.substring(1)}`
  280. if (localKeys.includes(localKey)) {
  281. props[k] = this[localKey]
  282. return props[k]
  283. }
  284. if (k === 'rowSelection') {
  285. if (showAlert && this.rowSelection) {
  286. // 如果需要使用alert,则重新绑定 rowSelection 事件
  287. console.log('this.rowSelection', this.rowSelection)
  288. props[k] = {
  289. ...this.rowSelection,
  290. selectedRows: this.selectedRows,
  291. selectedRowKeys: this.selectedRowKeys,
  292. onChange: (selectedRowKeys, selectedRows) => {
  293. this.updateSelect(selectedRowKeys, selectedRows)
  294. typeof this[k].onChange !== 'undefined' && this[k].onChange(selectedRowKeys, selectedRows)
  295. }
  296. }
  297. return props[k]
  298. } else if (!this.rowSelection) {
  299. // 如果没打算开启 rowSelection 则清空默认的选择项
  300. props[k] = null
  301. return props[k]
  302. }
  303. }
  304. this[k] && (props[k] = this[k])
  305. return props[k]
  306. })
  307. const table = (
  308. <a-table {...{ props, scopedSlots: { ...this.$scopedSlots } }} onChange={this.loadData}>
  309. { Object.keys(this.$slots).map(name => (<template slot={name}>{this.$slots[name]}</template>)) }
  310. </a-table>
  311. )
  312. return (
  313. <div class="table-wrapper">
  314. { showAlert ? this.renderAlert() : null }
  315. { table }
  316. </div>
  317. )
  318. }
  319. }