Question

我想制作一个只能由一位用户申请一天的报告，因此用户无法在同一天发布双重记录。这是代码

//我使用ionic和firebase

这是html的代码

context.Result = new BadRequestResult();
context.HttpContext.Response.HttpContext.Features.Get<IHttpResponseFeature>().ReasonPhrase = "Não foi encontrado.";

这是ts的代码

.cftv_representante_form {
    background-color: rgb(82, 82, 82);
    color: #fff;
}
.cftv_representante_form {
    display: grid;
    grid-auto-columns: auto;
    grid-auto-rows: auto auto auto auto auto auto auto auto auto auto auto;
    grid-template-areas: "h1" "p" "nome1" "nome2" "email1" "email2" "cpf1" "cpf2" "telefone1" "telefone2" "botao"
}
.cftv_representante_form p {
    padding: 5px 0 30px 0;
}
.cftv_representante_form input {
    font-size: 1.5em; 
    border-radius: 15px; 
    width: 100% !important;  
    color: #000; 
    border: 1px solid rgba(255,255,255,0.3); 
    margin-top:10px;
    margin-bottom: 10px; 
    padding: 10px;
}

@media screen and (min-width: 540px) {
    .cftv_representante_form {
        display:grid;
        grid-auto-columns: auto 15px auto !important;
        grid-auto-rows: auto auto auto auto auto auto auto !important;
        grid-template-areas: "h1 h1 h1" "p p p" "nome1 nome1 nome1" "nome2 nome2 nome2" "email1 email1 email1" "email2 email2 email2" "cpf1 . telefone1" "cpf2 . telefone2" "botao botao botao" !important;
    }
}

我只是使用标准代码将数据推送到firebase 使用此代码，我可以在同一天上传报告。

Answer 1

您可以查看Firebase以查找比一天（以毫秒为单位）更新的现有报告。如果有关系，请允许插入新的。

从Firebase过滤报告的方法：

const yesterday = Date.now() - (24 * 60 * 60 * 1000);

db
  .list<Report>('/laporan/' + this.id)
  .valueChanges()
  .map(reports => reports.filter(report => report.mydate > yesterday))
  .subscribe(reports => {
    if (reports.length === 0) {
      // insert report in Firebase
    }

    console.log(reports);
});

注意：mydate =自1970年1月1日00:00:00 UTC以来经过的毫秒数。

如何使数据仅在firebase上可用一次

1 个答案: