jsonapi/document.go at master · 3bb/jsonapi · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
package jsonapi

// Document ...
type Document struct {
	// Data
	Data interface{}

	// Included
	Included map[string]Resource

	// References
	Resources map[string]map[string]struct{}
	Links     map[string]Link

	// Relationships where data has to be included in payload
	RelData map[string][]string

	// Top-level members
	Meta map[string]interface{}

	// Errors
	Errors []Error

	// Internal
	PrePath string
}

// NewDocument ...
func NewDocument() *Document {
	return &Document{
		Included:  map[string]Resource{},
		Resources: map[string]map[string]struct{}{},
		Links:     map[string]Link{},
		RelData:   map[string][]string{},
		Meta:      map[string]interface{}{},
	}
}

// Include ...
func (d *Document) Include(res Resource) {
	key := res.GetType() + " " + res.GetID()

	if len(d.Included) == 0 {
		d.Included = map[string]Resource{}
	}

	if dres, ok := d.Data.(Resource); ok {
		// Check resource
		rkey := dres.GetID() + " " + dres.GetType()

		if rkey == key {
			return
		}
	} else if col, ok := d.Data.(Collection); ok {
		// Check Collection
		ctyp := col.Sample().GetType()
		if ctyp == res.GetType() {
			for i := 0; i < col.Len(); i++ {
				rkey := col.Elem(i).GetID() + " " + col.Elem(i).GetType()

				if rkey == key {
					return
				}
			}
		}
	}

	// Check already included resources
	if _, ok := d.Included[key]; ok {
		return
	}

	d.Included[key] = res
}

// MarshalJSON ...
// func (d *Document) Marshal() ([]byte, error) {
// 	// Data
// 	var data json.RawMessage
// 	var errors json.RawMessage
// 	var err error
// 	if d.Errors != nil {
// 		errors, err = json.Marshal(d.Errors)
// 	} else if res, ok := d.Data.(Resource); ok {
// 		_, typ := res.IDAndType()
// 		data, err = marshalResource(res, d.URL.Host, d.URL.Params.Fields[typ], d.RelData)
// 	} else if col, ok := d.Data.(Collection); ok {
// 		data, err = marshalCollection(col, d.URL.Host, d.URL.Params.Fields[col.Type()], d.RelData)
// 	} else if id, ok := d.Data.(Identifier); ok {
// 		data, err = json.Marshal(id)
// 	} else if ids, ok := d.Data.(Identifiers); ok {
// 		data, err = json.Marshal(ids)
// 	} else {
// 		data = []byte("null")
// 	}
//
// 	if err != nil {
// 		return []byte{}, err
// 	}
//
// 	// Included
// 	inclusions := []*json.RawMessage{}
// 	if len(data) > 0 {
// 		for key := range d.Included {
// 			_, typ := d.Included[key].IDAndType()
// 			raw, err := marshalResource(d.Included[key], d.URL.Host, d.URL.Params.Fields[typ], d.RelData)
// 			if err != nil {
// 				return []byte{}, err
// 			}
// 			rawm := json.RawMessage(raw)
// 			inclusions = append(inclusions, &rawm)
// 		}
// 	}
//
// 	// Marshaling
// 	plMap := map[string]interface{}{}
//
// 	if len(data) > 0 {
// 		plMap["data"] = data
// 	}
//
// 	if len(d.Links) > 0 {
// 		plMap["links"] = d.Links
// 	}
//
// 	if len(errors) > 0 {
// 		plMap["errors"] = errors
// 	}
//
// 	if len(inclusions) > 0 {
// 		plMap["included"] = inclusions
// 	}
//
// 	if len(d.Meta) > 0 {
// 		plMap["meta"] = d.Meta
// 	}
//
// 	if len(d.JSONAPI) > 0 {
// 		plMap["jsonapi"] = d.JSONAPI
// 	}
//
// 	return json.Marshal(plMap)
// }