-
-
Notifications
You must be signed in to change notification settings - Fork 6.2k
/
NativescriptQueryRunner.ts
97 lines (77 loc) · 3.47 KB
/
NativescriptQueryRunner.ts
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
import {ObjectLiteral} from "../../common/ObjectLiteral";
import {QueryRunnerAlreadyReleasedError} from "../../error/QueryRunnerAlreadyReleasedError";
import {QueryFailedError} from "../../error/QueryFailedError";
import {AbstractSqliteQueryRunner} from "../sqlite-abstract/AbstractSqliteQueryRunner";
import {NativescriptDriver} from "./NativescriptDriver";
import {Broadcaster} from "../../subscriber/Broadcaster";
import { QueryResult } from "../../query-runner/QueryResult";
/**
* Runs queries on a single sqlite database connection.
*/
export class NativescriptQueryRunner extends AbstractSqliteQueryRunner {
/**
* Database driver used by connection.
*/
driver: NativescriptDriver;
// -------------------------------------------------------------------------
// Constructor
// -------------------------------------------------------------------------
constructor(driver: NativescriptDriver) {
super();
this.driver = driver;
this.connection = driver.connection;
this.broadcaster = new Broadcaster(this);
}
/**
* Executes a given SQL query.
*/
async query(query: string, parameters?: any[], useStructuredResult = false): Promise<any> {
if (this.isReleased) {
throw new QueryRunnerAlreadyReleasedError();
}
const connection = this.driver.connection;
return new Promise(async (ok, fail) => {
const databaseConnection = await this.connect();
const isInsertQuery = query.substr(0, 11) === "INSERT INTO";
connection.logger.logQuery(query, parameters, this);
const handler = (err: any, raw: any) => {
// log slow queries if maxQueryExecution time is set
const maxQueryExecutionTime = this.driver.options.maxQueryExecutionTime;
const queryEndTime = +new Date();
const queryExecutionTime = queryEndTime - queryStartTime;
if (maxQueryExecutionTime && queryExecutionTime > maxQueryExecutionTime) {
connection.logger.logQuerySlow(queryExecutionTime, query, parameters, this);
}
if (err) {
connection.logger.logQueryError(err, query, parameters, this);
fail(new QueryFailedError(query, parameters, err));
}
const result = new QueryResult();
result.raw = raw;
if (!isInsertQuery && Array.isArray(raw)) {
result.records = raw;
}
if (useStructuredResult) {
ok(result);
} else {
ok(result.raw);
}
};
const queryStartTime = +new Date();
if (isInsertQuery) {
databaseConnection.execSQL(query, parameters, handler);
} else {
databaseConnection.all(query, parameters, handler);
}
});
}
// -------------------------------------------------------------------------
// Protected Methods
// -------------------------------------------------------------------------
/**
* Parametrizes given object of values. Used to create column=value queries.
*/
protected parametrize(objectLiteral: ObjectLiteral, startIndex: number = 0): string[] {
return Object.keys(objectLiteral).map((key, index) => `"${key}"` + "=?");
}
}