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post_type.go
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post_type.go
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package main
import (
"strconv"
"github.com/graphql-go/graphql"
)
var PostType = graphql.NewObject(graphql.ObjectConfig{
Name: "Post",
Fields: graphql.Fields{
"id": &graphql.Field{
Type: graphql.NewNonNull(graphql.ID),
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
if post, ok := p.Source.(*Post); ok == true {
return post.ID, nil
}
return nil, nil
},
},
"title": &graphql.Field{
Type: graphql.NewNonNull(graphql.String),
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
if post, ok := p.Source.(*Post); ok == true {
return post.Title, nil
}
return nil, nil
},
},
"body": &graphql.Field{
Type: graphql.NewNonNull(graphql.ID),
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
if post, ok := p.Source.(*Post); ok == true {
return post.Body, nil
}
return nil, nil
},
},
},
})
func init() {
PostType.AddFieldConfig("user", &graphql.Field{
Type: graphql.NewNonNull(UserType),
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
if post, ok := p.Source.(*Post); ok == true {
return GetUserByID(post.UserID)
}
return nil, nil
},
})
PostType.AddFieldConfig("comment", &graphql.Field{
Type: CommentType,
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
if post, ok := p.Source.(*Post); ok == true {
i := p.Args["id"].(string)
id, err := strconv.Atoi(i)
if err != nil {
return nil, err
}
return GetCommentByIDAndPost(id, post.ID)
}
return nil, nil
},
})
PostType.AddFieldConfig("comments", &graphql.Field{
Type: graphql.NewNonNull(graphql.NewList(graphql.NewNonNull(CommentType))),
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
if post, ok := p.Source.(*Post); ok == true {
return GetCommentsForPost(post.ID)
}
return []Comment{}, nil
},
})
}