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predicate_type.go
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/
predicate_type.go
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package schema
import (
"fmt"
"strings"
)
// PredicateType represents schema types in Dgraph.
type PredicateType int
// PredicateType enum values
// See https://docs.dgraph.io/query-language/#schemav
const (
PredicateTypeDefault PredicateType = iota
PredicateTypeInt
PredicateTypeFloat
PredicateTypeString
PredicateTypeBool
PredicateTypeDateTime
PredicateTypeGeo
PredicateTypePassword
PredicateTypeUID
)
var (
nameByPredType map[PredicateType]string
predTypeByName map[string]PredicateType
)
func init() {
nameByPredType = map[PredicateType]string{
PredicateTypeDefault: "default",
PredicateTypeInt: "int",
PredicateTypeFloat: "float",
PredicateTypeString: "string",
PredicateTypeBool: "bool",
PredicateTypeDateTime: "dateTime",
PredicateTypeGeo: "geo",
PredicateTypePassword: "password",
PredicateTypeUID: "uid",
}
predTypeByName = map[string]PredicateType{}
for t, n := range nameByPredType {
predTypeByName[strings.ToLower(n)] = t
}
}
func (t PredicateType) String() string {
return nameByPredType[t]
}
// PredicateTypeOf returns PredicateType corresponds to given name
func PredicateTypeOf(name string) (PredicateType, error) {
t, ok := predTypeByName[strings.ToLower(name)]
if !ok {
return PredicateTypeDefault, fmt.Errorf("unexpected type: %s", name)
}
return t, nil
}