如何使用where子句从firestore中删除文档 [英] How to delete document from firestore using where clause

问题描述

var jobskill_ref = db.collection('job_skills').where('job_id','==',post.job_id);
jobskill_ref.delete();

抛出错误

jobskill_ref.delete不是函数

jobskill_ref.delete is not a function

推荐答案

只有在您拥有 DocumentReference 后才能删除文档。为此，您必须首先执行查询，然后遍历 QuerySnapshot ，最后根据< c>快照删除每个 DocumentSnapshot code> ref 。

You can only delete a document once you have a DocumentReference to it. To get that you must first execute the query, then loop over the QuerySnapshot and finally delete each DocumentSnapshot based on its ref.

var jobskill_query = db.collection('job_skills').where('job_id','==',post.job_id);
jobskill_query.get().then(function(querySnapshot) {
  querySnapshot.forEach(function(doc) {
    doc.ref.delete();
  });
});

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