web/src/mixin/listMixin.js

/**
 * 新增修改完成调用 modalFormOk方法 编辑弹框组件ref定义为modalForm
 * 高级查询按钮调用 superQuery方法  高级查询组件ref定义为superQueryModal
 * data中url定义 list为查询列表  delete为删除单条记录  deleteBatch为批量删除
 */
import Vue from 'vue'
import { filterObj } from '@/utils/util'
import { postAction, getAction } from '@/api/request'
import store from '@/store'

export const listMixin = {
  data() {
    return {
      /* 查询条件-请不要在queryParam中声明非字符串值的属性 */
      queryParam: {},
      /* 数据源 */
      dataSource: [],
      /* 分页参数 */
      ipagination: {
        current: 1,
        pageSize: 10,
        pageSizeOptions: ['10', '20', '30'],
        showTotal: (total, range) => {
          return range[0] + '-' + range[1] + ' 共' + total + '条'
        },
        showQuickJumper: true,
        showSizeChanger: true,
        total: 0
      },
      /* 排序参数 */
      isorter: {
        column: 'createTime',
        order: 'desc'
      },
      /* 筛选参数 */
      filters: {},
      /* table加载状态 */
      loading: false,
      /* table选中keys*/
      selectedRowKeys: [],
      /* table选中records*/
      selectionRows: [],
      /* 查询折叠 */
      toggleSearchStatus: false,
      /* 高级查询条件生效状态 */
      superQueryFlag: false,
      /* 高级查询条件 */
      superQueryParams: '',
      /** 高级查询拼接方式 */
      superQueryMatchType: 'and'
    }
  },
  created() {
    if (!this.disableMixinCreated) {
      console.log(' -- mixin created -- ')
      this.loadData()
      // 初始化字典配置 在自己页面定义
      this.initDictConfig()
    }
  },
  computed: {
    // token header
    tokenHeader() {
      const head = { 'Authorization': store.getters.token }
      return head
    }
  },
  methods: {
    loadData(arg) {
      if (!this.url.list) {
        this.$message.error('请设置url.list属性!')
        return
      }
      // 加载数据 若传入参数1则加载第一页的内容
      if (arg === 1) {
        this.ipagination.current = 1
      }
      var params = this.getQueryParams()// 查询条件
      this.loading = true
      postAction(this.url.list, params).then((res) => {
        if (res.success) {
          // update-begin---author:zhangyafei    Date:20201118  for：适配不分页的数据列表------------
          this.dataSource = res.result.records || res.result
          if (res.result.total) {
            this.ipagination.total = res.result.total
          } else {
            this.ipagination.total = 0
          }
          // update-end---author:zhangyafei    Date:20201118  for：适配不分页的数据列表------------
        } else {
          this.$message.warning(res.message)
        }
      }).finally(() => {
        this.loading = false
      })
    },
    initDictConfig() {
      console.log('--这是一个假的方法!')
    },
    handleSuperQuery(params, matchType) {
      // 高级查询方法
      if (!params) {
        this.superQueryParams = ''
        this.superQueryFlag = false
      } else {
        this.superQueryFlag = true
        this.superQueryParams = JSON.stringify(params)
        this.superQueryMatchType = matchType
      }
      this.loadData(1)
    },
    getQueryParams() {
      // 获取查询条件
      const sqp = {}
      if (this.superQueryParams) {
        sqp['superQueryParams'] = encodeURI(this.superQueryParams)
        sqp['superQueryMatchType'] = this.superQueryMatchType
      }
      var param = Object.assign(sqp, this.queryParam, this.isorter, this.filters)
      param.field = this.getQueryField()
      param.pageNo = this.ipagination.current
      param.pageSize = this.ipagination.pageSize
      return filterObj(param)
    },
    getQueryField() {
      // TODO 字段权限控制
      var str = 'id,'
      this.columns.forEach(function(value) {
        str += ',' + value.dataIndex
      })
      return str
    },

    onSelectChange(selectedRowKeys, selectionRows) {
      this.selectedRowKeys = selectedRowKeys
      this.selectionRows = selectionRows
    },
    onClearSelected() {
      this.selectedRowKeys = []
      this.selectionRows = []
    },
    searchQuery() {
      this.loadData(1)
    },
    superQuery() {
      this.$refs.superQueryModal.show()
    },
    searchReset() {
      this.queryParam = {}
      this.loadData(1)
    },
    batchDel: function() {
      if (!this.url.deleteBatch) {
        this.$message.error('请设置url.deleteBatch属性!')
        return
      }
      if (this.selectedRowKeys.length <= 0) {
        this.$message.warning('请选择一条记录！')
        return
      } else {
        var ids = ''
        for (var a = 0; a < this.selectedRowKeys.length; a++) {
          ids += this.selectedRowKeys[a] + ','
        }
        var that = this
        this.$confirm({
          title: '确认删除',
          content: '是否删除选中数据?',
          onOk: function() {
            that.loading = true
            postAction(that.url.deleteBatch, { ids: ids }).then((res) => {
              if (res.success) {
                // 重新计算分页问题
                that.reCalculatePage(that.selectedRowKeys.length)
                that.$message.success(res.message)
                that.loadData()
                that.onClearSelected()
              } else {
                that.$message.warning(res.message)
              }
            }).finally(() => {
              that.loading = false
            })
          }
        })
      }
    },
    handleDelete: function(id) {
      if (!this.url.delete) {
        this.$message.error('请设置url.delete属性!')
        return
      }
      var that = this
      deleteAction(that.url.delete, { id: id }).then((res) => {
        if (res.success) {
          // 重新计算分页问题
          that.reCalculatePage(1)
          that.$message.success(res.message)
          that.loadData()
        } else {
          that.$message.warning(res.message)
        }
      })
    },
    reCalculatePage(count) {
      // 总数量-count
      const total = this.ipagination.total - count
      // 获取删除后的分页数
      const currentIndex = Math.ceil(total / this.ipagination.pageSize)
      // 删除后的分页数<所在当前页
      if (currentIndex < this.ipagination.current) {
        this.ipagination.current = currentIndex
      }
      console.log('currentIndex', currentIndex)
    },
    handleEdit: function(record) {
      this.$refs.modalForm.edit(record)
      this.$refs.modalForm.title = '编辑'
      this.$refs.modalForm.disableSubmit = false
    },
    handleAdd: function() {
      this.$refs.modalForm.add()
      this.$refs.modalForm.title = '新增'
      this.$refs.modalForm.disableSubmit = false
    },
    handleTableChange(pagination, filters, sorter) {
      // 分页、排序、筛选变化时触发
      // TODO 筛选
      console.log(pagination)
      if (Object.keys(sorter).length > 0) {
        this.isorter.column = sorter.field
        this.isorter.order = sorter.order == 'ascend' ? 'asc' : 'desc'
      }
      this.ipagination = pagination
      this.loadData()
    },
    handleToggleSearch() {
      this.toggleSearchStatus = !this.toggleSearchStatus
    },
    // 给popup查询使用(查询区域不支持回填多个字段，限制只返回一个字段)
    getPopupField(fields) {
      return fields.split(',')[0]
    },
    modalFormOk() {
      // 新增/修改 成功时，重载列表
      this.loadData()
      // 清空列表选中
      this.onClearSelected()
    },
    handleDetail: function(record) {
      this.$refs.modalForm.edit(record)
      this.$refs.modalForm.title = '详情'
      this.$refs.modalForm.disableSubmit = true
    },
    /* 导出 */
    handleExportXls2() {
      const paramsStr = encodeURI(JSON.stringify(this.getQueryParams()))
      const url = ``
      window.location.href = url
    },
    handleExportXls(fileName) {
      if (!fileName || typeof fileName !== 'string') {
        fileName = '导出文件'
      }
      const param = this.getQueryParams()
      if (this.selectedRowKeys && this.selectedRowKeys.length > 0) {
        param['selections'] = this.selectedRowKeys.join(',')
      }
      console.log('导出参数', param)
      downFile(this.url.exportXlsUrl, param).then((data) => {
        if (!data) {
          this.$message.warning('文件下载失败')
          return
        }
        if (typeof window.navigator.msSaveBlob !== 'undefined') {
          window.navigator.msSaveBlob(new Blob([data], { type: 'application/vnd.ms-excel' }), fileName + '.xls')
        } else {
          const url = window.URL.createObjectURL(new Blob([data], { type: 'application/vnd.ms-excel' }))
          const link = document.createElement('a')
          link.style.display = 'none'
          link.href = url
          link.setAttribute('download', fileName + '.xls')
          document.body.appendChild(link)
          link.click()
          document.body.removeChild(link) // 下载完成移除元素
          window.URL.revokeObjectURL(url) // 释放掉blob对象
        }
      })
    },
    /* 导入 */
    handleImportExcel(info) {
      this.loading = true
      if (info.file.status !== 'uploading') {
        console.log(info.file, info.fileList)
      }
      if (info.file.status === 'done') {
        this.loading = false
        if (info.file.response.success) {
          // this.$message.success(`${info.file.name} 文件上传成功`);
          if (info.file.response.code === 201) {
            const { message, result: { msg, fileUrl, fileName }} = info.file.response
            const href = fileUrl
            this.$warning({
              title: message,
              content: (<div>
                <span>{msg}</span><br/>
                <span>具体详情请 <a href={href} target='_blank' download={fileName}>点击下载</a> </span>
              </div>
              )
            })
          } else {
            this.$message.success(info.file.response.message || `${info.file.name} 文件上传成功`)
          }
          this.loadData()
        } else {
          this.$message.error(`${info.file.name} ${info.file.response.message}.`)
        }
      } else if (info.file.status === 'error') {
        this.loading = false
        if (info.file.response.status === 500) {
          const data = info.file.response
          const token = store.getters.token
          if (token && data.message.includes('Token失效')) {
            this.$error({
              title: '登录已过期',
              content: '很抱歉，登录已过期，请重新登录',
              okText: '重新登录',
              mask: false,
              onOk: () => {
                store.dispatch('Logout').then(() => {
                  Vue.ls.remove(ACCESS_TOKEN)
                  window.location.reload()
                })
              }
            })
          }
        } else {
          this.$message.error(`文件上传失败: ${info.file.msg} `)
        }
      }
    }
  }
}