GoToSocial/vendor/github.com/goccy/go-json/query.go

48 lines
1.6 KiB
Go

package json
import (
"github.com/goccy/go-json/internal/encoder"
)
type (
// FieldQuery you can dynamically filter the fields in the structure by creating a FieldQuery,
// adding it to context.Context using SetFieldQueryToContext and then passing it to MarshalContext.
// This is a type-safe operation, so it is faster than filtering using map[string]interface{}.
FieldQuery = encoder.FieldQuery
FieldQueryString = encoder.FieldQueryString
)
var (
// FieldQueryFromContext get current FieldQuery from context.Context.
FieldQueryFromContext = encoder.FieldQueryFromContext
// SetFieldQueryToContext set current FieldQuery to context.Context.
SetFieldQueryToContext = encoder.SetFieldQueryToContext
)
// BuildFieldQuery builds FieldQuery by fieldName or sub field query.
// First, specify the field name that you want to keep in structure type.
// If the field you want to keep is a structure type, by creating a sub field query using BuildSubFieldQuery,
// you can select the fields you want to keep in the structure.
// This description can be written recursively.
func BuildFieldQuery(fields ...FieldQueryString) (*FieldQuery, error) {
query, err := Marshal(fields)
if err != nil {
return nil, err
}
return FieldQueryString(query).Build()
}
// BuildSubFieldQuery builds sub field query.
func BuildSubFieldQuery(name string) *SubFieldQuery {
return &SubFieldQuery{name: name}
}
type SubFieldQuery struct {
name string
}
func (q *SubFieldQuery) Fields(fields ...FieldQueryString) FieldQueryString {
query, _ := Marshal(map[string][]FieldQueryString{q.name: fields})
return FieldQueryString(query)
}