Vue 使用compute計算false數顯示在b-badge問題

vue.js vue

小火車 2021-08-05 17:13:04 ‧ 865 瀏覽

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各位先進好, 我最近在實作Vue顯示count後的數字想顯示在Bootstrap b-badge上顯示

下面是我以compute計算每個user hr_checked: false :

countCheck() {
      return this.userlistes.map((userliste) => ({
        username: userliste.username,
        unchecked: userliste.worklists.reduce((sum, worklist) => {
          if (worklist.hr_checked === false) {
            sum++;
          }
          return sum;
        }, 0),
      }));
    },

因為HTML 是以v-for render出來, 請問有辦法將compute計算後的數值依個別的user顯示hr_checked: falsecount後的數字顯示嗎??

HTML

<b-card no-body class="mb-1" v-for="users in userlistes" :key="users.id">
          <b-card-header header-tag="header" class="p-0" role="tab">
            <div class="d-grid gap-2">
              <b-button
                block
                variant="outline-primary"
                v-b-toggle="`accordion-${users.id}`"
              >
                {{ users.username }}
                <b-badge pill variant="info">{{ countCheck }}</b-badge>
              </b-button>
            </div>
          </b-card-header>
          <b-collapse
            :id="`accordion-${users.id}`"
            accordion="table-accordion"
            role="tabpanel"
          >
            <table class="table table-striped table-bordered">
              <thead>
                <tr>
                  <th colspan="10">
                    <h3 style="text-align: center">
                      {{ users.username }} Work-Lists
                    </h3>
                  </th>
                </tr>
                <tr>
                  <th>Task Name</th>
                  <th>Date</th>
                  <th>Description </th>
                  <th>Hour (hr)</th>
                  <th>Overtime </th>
                  <th>Overtime Hour (hr)</th>
                  <th>
                    <label class="form-checkbox">
                      <input
                        type="checkbox"
                        @click="clickCheckAll()"
                        v-model="checkAll"
                      />
                      <i class="form-icon"></i>
                    </label>
                  </th>
                </tr>
              </thead>
              <tbody>
                <tr v-for="worklist in users.worklists" :key="worklist.id">
                  <td>{{ worklist.task.taskname }}</td>
                  <td>{{ worklist.date }}</td>
                  <td>{{ worklist.description }}</td>
                  <td>{{ worklist.hour }}</td>
                  <td>{{ worklist.is_overtime ? "Yes" : "No" }}</td>
                  <td>{{ worklist.overtime_hour }}</td>
                  <td>
                    <label class="form-checkbox">
                      <input
                        type="checkbox"
                        @click="clickCheckbox(worklist.id, worklist)"
                        v-model="worklist.hr_checked"
                      />
                      <i class="form-icon">
                        {{ worklist.hr_checked }}
                      </i>
                    </label>
                  </td>
                </tr>
              </tbody>
            </table>
          </b-collapse>
        </b-card>

資料型態

data() {
        return {
          userlistes: [
            {
              id: 2,
              username: "Larry",
              department_id: 3,
              department: {
                department_name: "IT",
                id: 3,
              },
              worklists: [
                {
                  id: 278,
                  user_id: 2,
                  task_id: 1,
                  date: "2021-07-30",
                  hour: 2,
                  description: "A",
                  is_overtime: false,
                  overtime_hour: 0,
                  task: {
                    taskname: "Task A",
                  },
                  hr_checked: false,
                },
                {
                  id: 277,
                  user_id: 2,
                  task_id: 1,
                  date: "2021-07-30",
                  hour: 3,
                  description: "B",
                  is_overtime: false,
                  overtime_hour: 0,
                  task: {
                    taskname: "Task B",
                  },
                  hr_checked: false,
                },
              ],
            },
            {
              id: 4,
              username: "Tom",
              department_id: 2,
              department: {
                department_name: "Business",
                id: 2,
              },
              worklists: [
                {
                  id: 259,
                  user_id: 4,
                  task_id: 7,
                  date: "2021-07-27",
                  hour: 6.5,
                  description:
                    "A",
                  is_overtime: false,
                  overtime_hour: 0,
                  task: {
                    taskname: "Task A",
                  },
                  hr_checked: false,
                },
                {
                  id: 260,
                  user_id: 4,
                  task_id: 7,
                  date: "2021-07-27",
                  hour: 0.5,
                  description: "B",
                  is_overtime: false,
                  overtime_hour: 0,
                  task: {
                    taskname: "Task B",
                  },
                  hr_checked: false,
                },
              ],
            },
          ],
      },

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1 個回答

frank575

iT邦新手 4 級 ‧ 2021-08-05 17:26:44

最佳解答

有兩個方式：

你可以把 computed 的 unchecked 拆成新的 computed 或者是 method 來計算

// computed, methdos 擇一
computed: {
  comp() {
    return worklists => worklists.reduce((sum, worklist) => worklist.hr_checked === false ? sum + 1 : sum, 0)
  },
}

methods: {
  comp(worklists) { 
    return worklists.reduce((sum, worklist) => worklist.hr_checked === false ? sum + 1 : sum, 0)
  }
}

// {{ countCheck }} 改成以下
{{ comp(users.worklists) }}

或者是從 users in userlistes 的 v-for 裡取出 i 然後這樣取值 countCheck[i].unchecked，因為你的 computed 只是把你的 userlistes 進行 map 轉值，所以索引值一一對應

<b-card no-body class="mb-1" v-for="(users, i) in userlistes" :key="users.id">
  ...
  <b-badge pill variant="info">{{ countCheck[i].unchecked }}</b-badge>