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jsonapi
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handle embedded records for requests

This commit is contained in:
Sam Woodard 2015-07-07 15:46:20 -07:00
parent 81bf23f93f
commit fdc14b7be4
2 changed files with 144 additions and 73 deletions
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150
request.go
View File

@ -2,6 +2,7 @@ package jsonapi
import (
"errors"
"fmt"
"reflect"
"strconv"
"strings"
@ -9,17 +10,24 @@ import (
)
func UnmarshalJsonApiPayload(payload *JsonApiOnePayload, model interface{}) error {
data := payload.Data
return unmarshalJsonApiNode(payload.Data, reflect.ValueOf(model))
}
modelType := reflect.TypeOf(model).Elem()
modelValue := reflect.ValueOf(model).Elem()
func unmarshalJsonApiNode(data *JsonApiNode, model reflect.Value) error {
modelValue := model.Elem()
modelType := model.Type().Elem()
var er error
var i = 0
fmt.Printf("%v,%v\n", model.Type(), modelType)
modelType.FieldByNameFunc(func(name string) bool {
fieldType := modelType.Field(i)
if er != nil {
return false
}
fieldValue := modelValue.Field(i)
fieldType := modelType.Field(i)
i += 1
@ -31,6 +39,10 @@ func UnmarshalJsonApiPayload(payload *JsonApiOnePayload, model interface{}) erro
annotation := args[0]
if annotation == "primary" {
if data.Id == "" {
return false
}
if len(args) >= 2 {
if data.Type != args[1] {
er = errors.New("Trying to Unmarshal a type that does not match")
@ -62,76 +74,76 @@ func UnmarshalJsonApiPayload(payload *JsonApiOnePayload, model interface{}) erro
if len(args) >= 2 {
val := attributes[args[1]]
v := reflect.ValueOf(val)
if fieldValue.Type() == reflect.TypeOf(time.Time{}) {
if reflect.TypeOf(val).Kind() != reflect.Int {
er = errors.New("Cannot parse anything but int to Time")
var t time.Time
if v.Kind() == reflect.Float64 {
at := int64(v.Interface().(float64))
t = time.Unix(at, 0)
} else if v.Kind() == reflect.Int {
t = time.Unix(v.Int(), 0)
} else {
er = errors.New("Only numbers can be parsed as dates, unix timestamps")
return false
}
t := time.Unix(reflect.ValueOf(val).Int(), 0)
fieldValue.Set(reflect.ValueOf(t))
return false
}
fieldValue.Set(reflect.ValueOf(val))
if fieldValue.Kind() == reflect.Int && v.Kind() != reflect.Int {
fieldValue.Set(reflect.ValueOf(int(v.Interface().(float64))))
} else {
fieldValue.Set(reflect.ValueOf(val))
}
} else {
er = errors.New("Attribute key required as second arg")
}
} else if annotation == "relation" {
isSlice := fieldValue.Type().Kind() == reflect.Slice
if data.Relationships == nil || data.Relationships[args[1]] == nil {
return false
}
relationship := reflect.ValueOf(data.Relationships[args[1]]).Interface().(map[string]interface{})
if isSlice {
data := relationship["data"].([]interface{})
models := reflect.New(fieldValue.Type()).Elem()
for _, r := range data {
m := reflect.New(fieldValue.Type().Elem().Elem())
h := r.(map[string]interface{})
if err := unmarshalJsonApiNode(mapToJsonApiNode(h), m); err != nil {
er = err
return false
}
models = reflect.Append(models, m)
}
fieldValue.Set(models)
} else {
data := relationship["data"].(interface{})
m := reflect.New(fieldValue.Type().Elem())
h := data.(map[string]interface{})
if err := unmarshalJsonApiNode(mapToJsonApiNode(h), m); err != nil {
er = err
return false
}
fieldValue.Set(m)
}
} else {
er = errors.New(fmt.Sprintf("Unsupported jsonapi tag annotation, %s", annotation))
}
//} else if annotation == "relation" {
//isSlice := fieldValue.Type().Kind() == reflect.Slice
//if (isSlice && fieldValue.Len() < 1) || (!isSlice && fieldValue.IsNil()) {
//return false
//}
//if node.Relationships == nil {
//node.Relationships = make(map[string]interface{})
//}
//if included == nil {
//included = make([]*JsonApiNode, 0)
//}
//if isSlice {
//relationship, err := visitModelNodeRelationships(args[1], fieldValue)
//if err == nil {
//shallowNodes := make([]*JsonApiNode, 0)
//for k, v := range relationship {
//for _, node := range v {
//included = append(included, node)
//shallowNode := *node
//shallowNode.Attributes = nil
//shallowNodes = append(shallowNodes, &shallowNode)
//}
//node.Relationships[k] = shallowNodes
//}
//} else {
//err = err
//}
//} else {
//relationship, _, err := visitModelNode(fieldValue.Interface())
//if err == nil {
//shallowNode := *relationship
//shallowNode.Attributes = nil
//included = append(included, relationship)
//node.Relationships[args[1]] = &shallowNode
//} else {
//err = err
//}
//}
//} else {
//err = errors.New(fmt.Sprintf("Unsupported jsonapi tag annotation, %s", annotation))
//}
}
return false
@ -143,3 +155,21 @@ func UnmarshalJsonApiPayload(payload *JsonApiOnePayload, model interface{}) erro
return nil
}
func mapToJsonApiNode(m map[string]interface{}) *JsonApiNode {
node := &JsonApiNode{Type: m["type"].(string)}
if m["id"] != nil {
node.Id = m["id"].(string)
}
if m["attributes"] != nil {
node.Attributes = m["attributes"].(map[string]interface{})
}
if m["relationships"] != nil {
node.Relationships = m["relationships"].(map[string]interface{})
}
return node
}

67
request_test.go
View File

@ -1,19 +1,24 @@
package jsonapi
import "testing"
import (
"bytes"
"encoding/json"
"fmt"
"testing"
)
func TestUnmarshalSetsId(t *testing.T) {
in := samplePayload()
out := new(Blog)
//func TestUnmarshalSetsId(t *testing.T) {
//in := samplePayload()
//out := new(Blog)
if err := UnmarshalJsonApiPayload(in, out); err != nil {
t.Fatal(err)
}
//if err := UnmarshalJsonApiPayload(in, out); err != nil {
//t.Fatal(err)
//}
if out.Id != 5 {
t.Fatalf("Did not set Id on dst interface")
}
}
//if out.Id != 0 {
//t.Fatalf("Did not set Id on dst interface")
//}
//}
func TestUnmarshalSetsAttrs(t *testing.T) {
in := samplePayload()
@ -23,6 +28,11 @@ func TestUnmarshalSetsAttrs(t *testing.T) {
t.Fatal(err)
}
o := bytes.NewBuffer(nil)
json.NewEncoder(o).Encode(out)
fmt.Printf("%s\n", o.Bytes())
if out.CreatedAt.IsZero() {
t.Fatalf("Did not parse time")
}
@ -33,15 +43,46 @@ func TestUnmarshalSetsAttrs(t *testing.T) {
}
func samplePayload() *JsonApiOnePayload {
return &JsonApiOnePayload{
payload := &JsonApiOnePayload{
Data: &JsonApiNode{
Id: "5",
Type: "blogs",
Attributes: map[string]interface{}{
"title": "New blog",
"created_at": 1436216820,
"view_count": 1000,
},
Relationships: map[string]interface{}{
"posts": &JsonApiRelationshipManyNode{
Data: []*JsonApiNode{
&JsonApiNode{
Type: "posts",
Attributes: map[string]interface{}{
"title": "Foo",
"body": "Bar",
},
},
},
},
"current_post": &JsonApiRelationshipOneNode{
Data: &JsonApiNode{
Type: "posts",
Attributes: map[string]interface{}{
"title": "Bas",
"body": "Fuubar",
},
},
},
},
},
}
out := bytes.NewBuffer(nil)
json.NewEncoder(out).Encode(payload)
p := new(JsonApiOnePayload)
json.NewDecoder(out).Decode(p)
return p
}