Initial commit

node_modules/drizzle-orm/tidb-serverless/session.js

@@ -0,0 +1,147 @@
+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, fields, customResultMapper, generatedIds, returningIds) {
+    super();
+    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 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 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();
+  }
+  static [entityKind] = "TiDBServerlessSession";
+  logger;
+  client;
+  prepareQuery(query, fields, customResultMapper, generatedIds, returningIds) {
+    return new TiDBServerlessPreparedQuery(
+      this.client,
+      query.sql,
+      query.params,
+      this.logger,
+      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
+};
+//# sourceMappingURL=session.js.map