从Golang中的MongoDB复合集合中获取带有过滤器的所有数据。

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英文:

Getting all data from mongodb compound collection with filter in golang

问题

我尝试使用API请求体中指定的Name字段来获取所有数据。我为.Find()函数创建了一个过滤器。但是我无法得到任何结果(响应体显示为空,没有任何错误)。你可以在下面看到我的模型文件和代码的其他部分。

控制器代码:

func GET_FormByPatientFullName(ctx *gin.Context) {
   col := mongodb.CLIENT.Database(config.DATABASE_NAME).Collection("consentforms")
   filter := bson.M{"Patient": bson.M{"Name": ctx.Query("name")}}

   cursor, err := col.Find(_CONTEXT.TODO(), filter)
   if err != nil {
      log.Fatal(err)
   }

   var results []general_models.ConsentForm
   if err = cursor.All(_CONTEXT.TODO(), &results); err != nil {
      log.Fatal(err)
   }
   for _, result := range results {
      res, _ := json.Marshal(result)
      fmt.Println(string(res))
   }
   ctx.IndentedJSON(http.StatusOK, gin.H{"data": results})
}

模型文件:

type ConsentForm struct {
   ID                 primitive.ObjectID `json:"_id,omitempty" bson:"_id,omitempty"`
   FormFileURL        string             `json:"FormFileURL" bson:"FormFileURL"`
   ProcessName        string             `json:"ProcessName" bson:"ProcessName"`
   DateOfNotification string             `json:"DateOfNotification" bson:"DateOfNotification"`
   WitnessName        string             `json:"WitnessName" bson:"WitnessName"`
   WitnessSurname     string             `json:"WitnessSurname" bson:"WitnessSurname"`
   ResponsibleDoctor  string             `json:"ResponsibleDoctor" bson:"ResponsibleDoctor"`
   Patient            IPatient           `json:"Patient" bson:"Patient"`
   QuestionOptions    IQuestionOptions   `json:"QuestionOptions" bson:"QuestionOptions"`
   AdditionalDetails  string             `json:"AdditionalDetails" bson:"AdditionalDetails"`
}

type IPatient struct {
   // ID                primitive.ObjectID `json:"_id,omitempty" bson:"_id,omitempty"`
   Name              string `json:"Name" bson:"Name"`
   Surname           string `json:"Surname" bson:"Surname"`
   Birthdate         string `json:"Birthdate" bson:"Birthdate"`
   TCKN              string `json:"TCKN" bson:"TCKN"`
   FacePhotoURL      string `json:"FacePhotoURL" bson:"FacePhotoURL"`
   SignatureImageURL string `json:"SignatureImageURL" bson:"SignatureImageURL"`
}

我尝试根据用户名称筛选和获取所有用户数据。但是我认为在过滤器部分或整体代码中有错误,因为我无法获取任何数据返回。我得到了一个空的返回结果。

英文:

I try to make get all data with Name field where I specify in API Request Body. I made a filter for .Find() function. But I can't get any result (response body says null, No errors at all). You can see my model file and other parts of the code at bottom.

Controller:

func GET_FormByPatientFullName(ctx *gin.Context) {
   col := mongodb.CLIENT.Database(config.DATABASE_NAME).Collection("consentforms")
   filter := bson.M{"Patient": bson.M{"Name": ctx.Query("name")}}

   cursor, err := col.Find(_CONTEXT.TODO(), filter)
   if err != nil {
      log.Fatal(err)
   }

   var results []general_models.ConsentForm
   if err = cursor.All(_CONTEXT.TODO(), &results); err != nil {
      log.Fatal(err)
   }
   for _, result := range results {
      res, _ := json.Marshal(result)
      fmt.Println(string(res))
   }
   ctx.IndentedJSON(http.StatusOK, gin.H{"data": results})
}

Model File:

type ConsentForm struct {
   ID                 primitive.ObjectID `json:"_id,omitempty" bson:"_id,omitempty"`
   FormFileURL        string             `json:"FormFileURL" bson:"FormFileURL"`
   ProcessName        string             `json:"ProcessName" bson:"ProcessName"`
   DateOfNotification string             `json:"DateOfNotification" bson:"DateOfNotification"`
   WitnessName        string             `json:"WitnessName" bson:"WitnessName"`
   WitnessSurname     string             `json:"WitnessSurname" bson:"WitnessSurname"`
   ResponsibleDoctor  string             `json:"ResponsibleDoctor" bson:"ResponsibleDoctor"`
   Patient            IPatient           `json:"Patient" bson:"Patient"`
   QuestionOptions    IQuestionOptions   `json:"QuestionOptions" bson:"QuestionOptions"`
   AdditionalDetails  string             `json:"AdditionalDetails" bson:"AdditionalDetails"`
}

type IPatient struct {
   // ID                primitive.ObjectID `json:"_id,omitempty" bson:"_id,omitempty"`
   Name              string `json:"Name" bson:"Name"`
   Surname           string `json:"Surname" bson:"Surname"`
   Birthdate         string `json:"Birthdate" bson:"Birthdate"`
   TCKN              string `json:"TCKN" bson:"TCKN"`
   FacePhotoURL      string `json:"FacePhotoURL" bson:"FacePhotoURL"`
   SignatureImageURL string `json:"SignatureImageURL" bson:"SignatureImageURL"`
}

I tried to filter and get all the data of the user according to the user name. But I think I have a mistake in the filter part or in the overall code because I can't get any data return. I get an empty return.

答案1

得分: 2

你的过滤器将匹配Patient是一个嵌入文档,并且具有与给定值匹配的单个Name字段的文档。

要按嵌入文档的字段进行过滤,您必须使用点表示法:

filter := bson.M{"Patient.Name": ctx.Query("name")}
英文:

Your filter would match documents where Patient is an embedded document with a single Name field matching the given value.

To filter by a field of an embedded document, you have to use the dot notation:

filter := bson.M{"Patient.Name": ctx.Query("name")}

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  • 本文由 发表于 2022年12月10日 19:17:00
  • 转载请务必保留本文链接:https://go.coder-hub.com/74752419.html
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