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u- return alias field #630

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u- return alias field #630

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1 change: 1 addition & 0 deletions definition.go
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Original file line number Diff line number Diff line change
Expand Up @@ -589,6 +589,7 @@ type FieldResolveFn func(p ResolveParams) (interface{}, error)

type ResolveInfo struct {
FieldName string
FieldNameAlias string
FieldASTs []*ast.Field
Path *ResponsePath
ReturnType Output
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13 changes: 13 additions & 0 deletions executor.go
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Original file line number Diff line number Diff line change
Expand Up @@ -610,6 +610,11 @@ func resolveField(eCtx *executionContext, parentType *Object, source interface{}
fieldName = fieldAST.Name.Value
}

fieldNameAlias := ""
if fieldAST.Alias != nil {
fieldNameAlias = fieldAST.Alias.Value
}

fieldDef := getFieldDef(eCtx.Schema, parentType, fieldName)
if fieldDef == nil {
resultState.hasNoFieldDefs = true
Expand All @@ -628,6 +633,7 @@ func resolveField(eCtx *executionContext, parentType *Object, source interface{}

info := ResolveInfo{
FieldName: fieldName,
FieldNameAlias: fieldNameAlias,
FieldASTs: fieldASTs,
Path: path,
ReturnType: returnType,
Expand Down Expand Up @@ -982,6 +988,13 @@ func DefaultResolveFn(p ResolveParams) (interface{}, error) {
// try p.Source as a map[string]interface
if sourceMap, ok := p.Source.(map[string]interface{}); ok {
property := sourceMap[p.Info.FieldName]
if p.Info.FieldNameAlias != "" {
propertyAlias, pok := sourceMap[p.Info.FieldNameAlias]
if pok {
property = propertyAlias
}
}

val := reflect.ValueOf(property)
if val.IsValid() && val.Type().Kind() == reflect.Func {
// try type casting the func to the most basic func signature
Expand Down