英文:
Golang array with forEach to fill model
问题
我有一个动态导入，人们可以选择用于特定行的字段。在Golang中，我显然会收到这个数组，并希望循环遍历导入的CSV，并将每一行添加到模型的特定部分。请参见我当前的代码。
applicant := models.Applicant{
Prefix: "",
FirstName: "",
LastName: "",
Email: "",
Telephone: "",
Mobile: "",
Gender: "",
CreatedAt: time.Time{},
UpdatedAt: nil,
DeletedAt: nil,
}
row := 0
splitted := strings.Split(details[0], ",")
data := strings.Split(rec[0], ";")
for i := range splitted {
if splitted[i] != "" {
applicant[splitted[i]] = data[row]
}
row++
}
显然，这样做是行不通的，因为我不能在我的for循环中写：
applicant[splitted[i]] = data[row]
因为模型不支持索引。我已经搜索了几个小时，但无法找到解决我的问题的方法。
请问有人可以帮助我并告诉我如何使这个工作起来吗？
英文:
I have a dynamic import where people can choose what field to use for a specific row.
In Golang, I receive this array obviously and want to loop through the imported CSV and add each row to a specific part of the model. See my current code below.
applicant := models.Applicant{
Prefix: "",
FirstName: "",
LastName: "",
Email: "",
Telephone: "",
Mobile: "",
Gender: "",
CreatedAt: time.Time{},
UpdatedAt: nil,
DeletedAt: nil,
}
row := 0
splitted := strings.Split(details[0], ",")
data := strings.Split(rec[0], ";")
for i := range splitted {
if splitted[i] != "" {
applicant[splitted[i]] = data[row]
}
row++
}
Obviously this won't work because I cannot say (in my for loop):
applicant[splitted[i]] = data[row]
Because a model does not support indexing. I have been Googling for hours but I am unable to find a solution to my problem.
Can anyone please help me out and tell me how I can make this work?
答案1
得分: 0
如果该模型是一个任意结构，你可能需要使用反射来修改其中一个字段。
例如，可以参考这个答案，它添加了一个SetStringField2()方法，使用Value.SetString()调用来修改字段的（字符串）值。
示例代码如下：
a := struct {
Name string
}{}
// 可行的操作
reflect.ValueOf(&a).Elem().FieldByName("Name").SetString("Hello")
fmt.Printf("%#v\n", a)
英文:
If that model is an arbitrary structure, you might need to use reflection on order to modify one of its fields.
See for instance this answer, which adds a SetStringField2() method, using a Value.SetString() call to modify the (string) value of a field.
a := struct {
Name string
}{}
// works
reflect.ValueOf(&a).Elem().FieldByName("Name").SetString("Hello")
fmt.Printf("%#v\n", a)
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