How to store a struct inside a struct in go?

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I have two structure (New and DailyPrediction) with DailyPrediction structure as one of the entity of New structure:

type New struct {
    Id string
    DailyPrediction
}

type DailyPrediction struct {
    Prediction string
}

I am unable to read (or) write the structure new in the datastore. It would be helpful if someone can help me on this.


It is unclear to me from your question what exactly you are doing with the struct, and in what way it is failing. However, while you are embedding the DailyPrediction struct in your new struct by not giving it a name, it still needs to be initialized. You can see details of how to do that here: http://golang.org/doc/effective_go.html#embedding

For example, in order to initialize your New struct, you may use a line like this:

    n := New{"foo", DailyPrediction{"bar"}}

Could that be what was missing?

Nested structs in Golang - Xavier Coulon, Today I heard about nested structs in Golang while watching the awesome Just for Func show, episode #20. Let's see what this is about! … If a struct type starts with a capital letter, then it is an exported type and it can be accessed from other packages. Similarly, if the fields of a struct start with caps, they can be accessed from other packages. Let's write a program that has custom packages to understand this better. Create a folder named structs in your Documents directory.


Not supported by the appengine.

Nested Structure in Golang, A structure or struct in Golang is a user-defined type, which allows us to Or in other words, a structure within another structure is known as a Nested Structure. var struct_pointer *Books Now, you can store the address of a structure variable in the above defined pointer variable. To find the address of a structure variable, place the & operator before the structure's name as follows − struct_pointer = &Book1; To access the members of a structure using a pointer to that structure, you must use the "."


Just to update this post for future readers ... this info is OLD ... nested structs are now supported

How to store a struct inside a struct in go?, It is unclear to me from your question what exactly you are doing with the struct, and in what way it is failing. However, while you are embedding  struct is a keyword in Go. It is used to define struct types, which is a sequence of named elements. For example: type Person struct { Name string Age int } The struct{} is a struct type with zero elements. It is often used when no information is to be stored. It has the benefit of being 0-sized, so usually no memory is required to store a value of type struct{}.


Struct in Golang, declaring and creating Struct Data Type , Within the curly brackets, a series of data fields are specified with a name and a type. type identifier struct{ field1 data_type field2 data_type field3 data_type }  Structs can improve modularity and allow to create and pass complex data structures around the system. You can also consider Structs as a template for creating a data record, like an employee record or an e-commerce product. The declaration starts with the keyword type, then a name for the new struct, and finally the keyword struct. Within the


Golang Structs Tutorial with Examples, The struct contains a list of fields inside the curly braces. Each field has a name and a type. Note that, you can collapse fields of the same type  A Union within a struct - practical use demonstration - C example. #include <string.h> #include <stdio.h> typedef union { int units; float kgs;


Structs, Go's structs are typed collections of fields. They're useful for grouping data together to form records. package main. import "fmt". This person struct type has name  Struct tags are small pieces of metadata attached to fields of a struct that provide instructions to other Go code that works with the struct. What Does a Struct Tag Look Like? Go struct tags are annotations that appear after the type in a Go struct declaration. Each tag is composed of short strings associated with some corresponding value.