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6491ad4 | 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 | import { NoopCache } from "../cache/core/index.js";
import { Column } from "../column.js";
import { entityKind, is } from "../entity.js";
import { NoopLogger } from "../logger.js";
import {
MySqlPreparedQuery,
MySqlSession,
MySqlTransaction
} from "../mysql-core/session.js";
import { fillPlaceholders, sql } from "../sql/sql.js";
import { mapResultRow } from "../utils.js";
const executeRawConfig = { fullResult: true };
const queryConfig = { arrayMode: true };
class TiDBServerlessPreparedQuery extends MySqlPreparedQuery {
constructor(client, queryString, params, logger, cache, queryMetadata, cacheConfig, fields, customResultMapper, generatedIds, returningIds) {
super(cache, queryMetadata, cacheConfig);
this.client = client;
this.queryString = queryString;
this.params = params;
this.logger = logger;
this.fields = fields;
this.customResultMapper = customResultMapper;
this.generatedIds = generatedIds;
this.returningIds = returningIds;
}
static [entityKind] = "TiDBPreparedQuery";
async execute(placeholderValues = {}) {
const params = fillPlaceholders(this.params, placeholderValues);
this.logger.logQuery(this.queryString, params);
const { fields, client, queryString, joinsNotNullableMap, customResultMapper, returningIds, generatedIds } = this;
if (!fields && !customResultMapper) {
const res = await this.queryWithCache(queryString, params, async () => {
return await client.execute(queryString, params, executeRawConfig);
});
const insertId = res.lastInsertId ?? 0;
const affectedRows = res.rowsAffected ?? 0;
if (returningIds) {
const returningResponse = [];
let j = 0;
for (let i = insertId; i < insertId + affectedRows; i++) {
for (const column of returningIds) {
const key = returningIds[0].path[0];
if (is(column.field, Column)) {
if (column.field.primary && column.field.autoIncrement) {
returningResponse.push({ [key]: i });
}
if (column.field.defaultFn && generatedIds) {
returningResponse.push({ [key]: generatedIds[j][key] });
}
}
}
j++;
}
return returningResponse;
}
return res;
}
const rows = await this.queryWithCache(queryString, params, async () => {
return await client.execute(queryString, params, queryConfig);
});
if (customResultMapper) {
return customResultMapper(rows);
}
return rows.map((row) => mapResultRow(fields, row, joinsNotNullableMap));
}
iterator(_placeholderValues) {
throw new Error("Streaming is not supported by the TiDB Cloud Serverless driver");
}
}
class TiDBServerlessSession extends MySqlSession {
constructor(baseClient, dialect, tx, schema, options = {}) {
super(dialect);
this.baseClient = baseClient;
this.schema = schema;
this.options = options;
this.client = tx ?? baseClient;
this.logger = options.logger ?? new NoopLogger();
this.cache = options.cache ?? new NoopCache();
}
static [entityKind] = "TiDBServerlessSession";
logger;
client;
cache;
prepareQuery(query, fields, customResultMapper, generatedIds, returningIds, queryMetadata, cacheConfig) {
return new TiDBServerlessPreparedQuery(
this.client,
query.sql,
query.params,
this.logger,
this.cache,
queryMetadata,
cacheConfig,
fields,
customResultMapper,
generatedIds,
returningIds
);
}
all(query) {
const querySql = this.dialect.sqlToQuery(query);
this.logger.logQuery(querySql.sql, querySql.params);
return this.client.execute(querySql.sql, querySql.params);
}
async count(sql2) {
const res = await this.execute(sql2);
return Number(
res["rows"][0]["count"]
);
}
async transaction(transaction) {
const nativeTx = await this.baseClient.begin();
try {
const session = new TiDBServerlessSession(this.baseClient, this.dialect, nativeTx, this.schema, this.options);
const tx = new TiDBServerlessTransaction(
this.dialect,
session,
this.schema
);
const result = await transaction(tx);
await nativeTx.commit();
return result;
} catch (err) {
await nativeTx.rollback();
throw err;
}
}
}
class TiDBServerlessTransaction extends MySqlTransaction {
static [entityKind] = "TiDBServerlessTransaction";
constructor(dialect, session, schema, nestedIndex = 0) {
super(dialect, session, schema, nestedIndex, "default");
}
async transaction(transaction) {
const savepointName = `sp${this.nestedIndex + 1}`;
const tx = new TiDBServerlessTransaction(
this.dialect,
this.session,
this.schema,
this.nestedIndex + 1
);
await tx.execute(sql.raw(`savepoint ${savepointName}`));
try {
const result = await transaction(tx);
await tx.execute(sql.raw(`release savepoint ${savepointName}`));
return result;
} catch (err) {
await tx.execute(sql.raw(`rollback to savepoint ${savepointName}`));
throw err;
}
}
}
export {
TiDBServerlessPreparedQuery,
TiDBServerlessSession,
TiDBServerlessTransaction
};
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