-
Notifications
You must be signed in to change notification settings - Fork 4
/
er.go
136 lines (109 loc) · 3.05 KB
/
er.go
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
package er
import (
"context"
"strings"
typex "github.com/go-courier/x/types"
"github.com/go-courier/enumeration"
"github.com/go-courier/sqlx/v2"
"github.com/go-courier/sqlx/v2/builder"
)
func DatabaseERFromDB(database *sqlx.Database, dialect builder.Dialect) *ERDatabase {
erd := &ERDatabase{Name: database.Name, Tables: map[string]*ERTable{}}
database.Tables.Range(func(table *builder.Table, idx int) {
t := &ERTable{Name: table.Name, Cols: map[string]*ERCol{}, Keys: map[string]*ERKey{}}
if len(table.Description) > 0 {
t.Summary = table.Description[0]
if len(table.Description) > 1 {
t.Desc = strings.Join(table.Description[1:], "\n")
}
}
erd.Tables[t.Name] = t
table.Columns.Range(func(col *builder.Column, idx int) {
if col.DeprecatedActions != nil {
return
}
c := &ERCol{
Name: col.Name,
DataType: builder.ResolveExpr(dialect.DataType(col.ColumnType)).Query(),
}
if len(col.Description) > 0 {
c.Summary = col.Description[0]
if len(col.Description) > 1 {
c.Desc = strings.Join(col.Description[1:], "\n")
}
}
if rv, ok := typex.TryNew(col.ColumnType.Type); ok {
if rv.CanInterface() {
if emum, ok := rv.Interface().(enumeration.Enum); ok {
c.Enum = map[string]EREnum{}
for _, e := range emum.ConstValues() {
em := EREnum{}
em.Value = e.Int()
em.Name = e.String()
em.Label = e.Label()
c.Enum[em.Name] = em
}
}
}
}
if len(col.Relation) == 2 {
relTable := database.Tables.Model(col.Relation[0])
if relTable != nil && relTable != table {
relCol := relTable.F(col.Relation[1])
if relCol != nil {
c.Rel = []string{
relTable.Name,
relCol.Name,
}
}
}
}
t.Cols[c.Name] = c
})
table.Keys.Range(func(key *builder.Key, idx int) {
k := &ERKey{
Name: key.Name,
Method: key.Method,
IsUnique: key.IsUnique,
IsPrimary: key.Name == "primary",
}
if q := key.Def.TableExpr(table).Ex(context.Background()).Query(); q != "" {
// todo rename
k.Cols = []string{q}
}
t.Keys[k.Name] = k
})
})
return erd
}
type ERDatabase struct {
Name string `json:"name"`
Tables map[string]*ERTable `json:"tables"`
}
type ERTable struct {
Name string `json:"name"`
Summary string `json:"summary"`
Desc string `json:"desc"`
Cols map[string]*ERCol `json:"cols"`
Keys map[string]*ERKey `json:"keys"`
}
type ERCol struct {
Name string `json:"name"`
DataType string `json:"dataType"`
Enum map[string]EREnum `json:"enum"`
Summary string `json:"summary"`
Desc string `json:"desc"`
Rel []string `json:"rel"`
}
type EREnum struct {
Value int `json:"value"`
Name string `json:"name"`
Label string `json:"label"`
}
type ERKey struct {
Name string `json:"name"`
Method string `json:"method"`
IsUnique bool `json:"isUnique"`
IsPrimary bool `json:"isPrimary"`
Cols []string `json:"cols"`
}