-
Notifications
You must be signed in to change notification settings - Fork 245
/
query_builder.go
175 lines (146 loc) · 4.94 KB
/
query_builder.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
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
package mysql
import (
"github.com/authzed/spicedb/internal/datastore/mysql/migrations"
sq "github.com/Masterminds/squirrel"
)
// QueryBuilder captures all parameterizable queries used
// by the MySQL datastore implementation
type QueryBuilder struct {
GetLastRevision sq.SelectBuilder
GetRevisionRange sq.SelectBuilder
WriteNamespaceQuery sq.InsertBuilder
ReadNamespaceQuery sq.SelectBuilder
DeleteNamespaceQuery sq.UpdateBuilder
DeleteNamespaceTuplesQuery sq.UpdateBuilder
QueryTupleIdsQuery sq.SelectBuilder
QueryTuplesQuery sq.SelectBuilder
DeleteTupleQuery sq.UpdateBuilder
QueryTupleExistsQuery sq.SelectBuilder
WriteTupleQuery sq.InsertBuilder
QueryChangedQuery sq.SelectBuilder
CountTupleQuery sq.SelectBuilder
WriteCaveatQuery sq.InsertBuilder
ReadCaveatQuery sq.SelectBuilder
ListCaveatsQuery sq.SelectBuilder
DeleteCaveatQuery sq.UpdateBuilder
}
// NewQueryBuilder returns a new QueryBuilder instance. The migration
// driver is used to determine the names of the tables.
func NewQueryBuilder(driver *migrations.MySQLDriver) *QueryBuilder {
builder := QueryBuilder{}
// transaction builders
builder.GetLastRevision = getLastRevision(driver.RelationTupleTransaction())
builder.GetRevisionRange = getRevisionRange(driver.RelationTupleTransaction())
// namespace builders
builder.WriteNamespaceQuery = writeNamespace(driver.Namespace())
builder.ReadNamespaceQuery = readNamespace(driver.Namespace())
builder.DeleteNamespaceQuery = deleteNamespace(driver.Namespace())
// tuple builders
builder.QueryTupleIdsQuery = queryTupleIds(driver.RelationTuple())
builder.DeleteNamespaceTuplesQuery = deleteNamespaceTuples(driver.RelationTuple())
builder.QueryTuplesQuery = queryTuples(driver.RelationTuple())
builder.DeleteTupleQuery = deleteTuple(driver.RelationTuple())
builder.QueryTupleExistsQuery = queryTupleExists(driver.RelationTuple())
builder.WriteTupleQuery = writeTuple(driver.RelationTuple())
builder.QueryChangedQuery = queryChanged(driver.RelationTuple())
builder.CountTupleQuery = countTuples(driver.RelationTuple())
// caveat builders
builder.ReadCaveatQuery = readCaveat(driver.Caveat())
builder.ListCaveatsQuery = listCaveats(driver.Caveat())
builder.WriteCaveatQuery = writeCaveat(driver.Caveat())
builder.DeleteCaveatQuery = deleteCaveat(driver.Caveat())
return &builder
}
func listCaveats(tableCaveat string) sq.SelectBuilder {
return sb.Select(colCaveatDefinition, colCreatedTxn).From(tableCaveat).OrderBy(colName)
}
func deleteCaveat(tableCaveat string) sq.UpdateBuilder {
return sb.Update(tableCaveat).Where(sq.Eq{colDeletedTxn: liveDeletedTxnID})
}
func writeCaveat(tableCaveat string) sq.InsertBuilder {
return sb.Insert(tableCaveat).Columns(
colName,
colCaveatDefinition,
colCreatedTxn,
)
}
func readCaveat(tableCaveat string) sq.SelectBuilder {
return sb.Select(colCaveatDefinition, colCreatedTxn).From(tableCaveat)
}
func getLastRevision(tableTransaction string) sq.SelectBuilder {
return sb.Select("MAX(id)").From(tableTransaction).Limit(1)
}
func getRevisionRange(tableTransaction string) sq.SelectBuilder {
return sb.Select("MIN(id)", "MAX(id)").From(tableTransaction)
}
func writeNamespace(tableNamespace string) sq.InsertBuilder {
return sb.Insert(tableNamespace).Columns(
colNamespace,
colConfig,
colCreatedTxn,
)
}
func readNamespace(tableNamespace string) sq.SelectBuilder {
return sb.Select(colConfig, colCreatedTxn).From(tableNamespace)
}
func deleteNamespace(tableNamespace string) sq.UpdateBuilder {
return sb.Update(tableNamespace).Where(sq.Eq{colDeletedTxn: liveDeletedTxnID})
}
func deleteNamespaceTuples(tableTuple string) sq.UpdateBuilder {
return sb.Update(tableTuple).Where(sq.Eq{colDeletedTxn: liveDeletedTxnID})
}
func queryTupleIds(tableTuple string) sq.SelectBuilder {
return sb.Select(
colID,
).From(tableTuple)
}
func queryTuples(tableTuple string) sq.SelectBuilder {
return sb.Select(
colNamespace,
colObjectID,
colRelation,
colUsersetNamespace,
colUsersetObjectID,
colUsersetRelation,
colCaveatName,
colCaveatContext,
).From(tableTuple)
}
func countTuples(tableTuple string) sq.SelectBuilder {
return sb.Select(
"count(*)",
).From(tableTuple)
}
func deleteTuple(tableTuple string) sq.UpdateBuilder {
return sb.Update(tableTuple).Where(sq.Eq{colDeletedTxn: liveDeletedTxnID})
}
func queryTupleExists(tableTuple string) sq.SelectBuilder {
return sb.Select(colID).From(tableTuple)
}
func writeTuple(tableTuple string) sq.InsertBuilder {
return sb.Insert(tableTuple).Columns(
colNamespace,
colObjectID,
colRelation,
colUsersetNamespace,
colUsersetObjectID,
colUsersetRelation,
colCaveatName,
colCaveatContext,
colCreatedTxn,
)
}
func queryChanged(tableTuple string) sq.SelectBuilder {
return sb.Select(
colNamespace,
colObjectID,
colRelation,
colUsersetNamespace,
colUsersetObjectID,
colUsersetRelation,
colCaveatName,
colCaveatContext,
colCreatedTxn,
colDeletedTxn,
).From(tableTuple)
}