如何从firebase中删除文档

Question

我需要通过单击一个文档的图标从firebase中删除该文档。问题是我不知道如何在vuetify中标记每个文档的特定id

这是我的名片(一个项目一张名片)

  <v-card flat v-for="project in projects" :key="project.title">
    <v-layout row wrap :class="`pa-3 project ${project.status}`">
      <v-flex xs12 md6>
        <div class="caption grey--text">Project title</div>
        <div>{{ project.title }}</div>
      </v-flex>
      <v-flex xs6 sm4 md2>
        <div class="caption grey--text">Person</div>
        <div>{{ project.person }}</div>
      </v-flex>
      <v-flex xs6 sm4 md2>
        <div class="caption grey--text">Due by</div>
        <div>{{ project.due }}</div>
      </v-flex>
      <v-flex xs2 sm4 md2>
      <v-btn flat color='red' slot='activator' class='right mx-0 my-0' @click='deleteProject()'>
      <v-icon>delete</v-icon>
     </v-btn>
        <div>
          <v-chip small :class="`${project.status} white--text caption mx-0`">{{ project.status}}</v-chip>
        </div>
      </v-flex>
    </v-layout>
    <v-divider></v-divider>
  </v-card>

我试着写的这个方法

deleteProject() {
  console.log('deleted');
  let idP = element.id; // obviously that i have problem with this line
  db.collection('projects').doc(idP).delete()
}

Answer 1

我认为您正在从firebase获取projects，并且您将始终获得您正在获取的firebase文档的Id。您应该将该id与其他值一起存储。之后，当您调用deleteProject函数时，您可以像这样在该函数中传递您的Id。

<v-btn flat color='red' slot='activator' class='right mx-0 my-0' @click='deleteProject(project.Id)'>

然后在您的函数中接收Id，如下所示

deleteProject(Id) {
  console.log('deleted');
  db.collection('projects').doc(Id).delete()
}

希望这能解决你的问题。