func (res *resource) handleReadRelation(c APIContexter, w http.ResponseWriter, r *http.Request, params map[string]string, info information, relation jsonapi.Reference) error {
id := params["id"]
obj, err := res.source.FindOne(id, buildRequest(c, r))
if err != nil {
return err
}
document, err := jsonapi.MarshalToStruct(obj.Result(), info)
if err != nil {
return err
}
rel, ok := document.Data.DataObject.Relationships[relation.Name]
if !ok {
return NewHTTPError(nil, fmt.Sprintf("There is no relation with the name %s", relation.Name), http.StatusNotFound)
}
meta := obj.Metadata()
if len(meta) > 0 {
rel.Meta = meta
}
return res.marshalResponse(rel, w, http.StatusOK, r)
}
func MarshalToStructWrapper(data interface{}, ep jsonapi.ServerInformation) (*jsonapi.Document, error) {
jst, err := jsonapi.MarshalToStruct(data, ep)
if err != nil {
return jst, err
}
if len(jst.Data.DataArray) > 0 { //array resource objects
// picking first element both from the generated and given typed structures
elem := jst.Data.DataArray[0]
value := reflect.ValueOf(data).Index(0).Interface()
// link for the array resource itself
jst.Links = &jsonapi.Links{Self: generateMultiResourceLink(&elem, ep)}
for i, d := range jst.Data.DataArray {
// link for individual resource
jst.Data.DataArray[i].Links = &jsonapi.Links{Self: generateSingleResourceLink(&d, ep)}
// Add relationships to every member
r := generateRelationshipLinks(value, &d, ep)
jst.Data.DataArray[i].Relationships = r
}
} else {
jst.Links = &jsonapi.Links{Self: generateSingleResourceLink(jst.Data.DataObject, ep)}
relationships := generateRelationshipLinks(data, jst.Data.DataObject, ep)
if len(relationships) > 0 {
jst.Data.DataObject.Relationships = relationships
}
}
return jst, nil
}
func (res *resource) respondWith(obj Responder, info information, status int, w http.ResponseWriter, r *http.Request) error {
data, err := jsonapi.MarshalToStruct(obj.Result(), info)
if err != nil {
return err
}
meta := obj.Metadata()
if len(meta) > 0 {
data.Meta = meta
}
return res.marshalResponse(data, w, status, r)
}