drizzle-orm/pg-core/session.js

Drizzle ORM package for SQL databases

import { hashQuery, NoopCache } from "../cache/core/cache.js";
import { entityKind, is } from "../entity.js";
import { DrizzleQueryError, TransactionRollbackError } from "../errors.js";
import { sql } from "../sql/index.js";
import { tracer } from "../tracing.js";
import { PgDatabase } from "./db.js";
class PgPreparedQuery {
  constructor(query, cache, queryMetadata, cacheConfig) {
    this.query = query;
    this.cache = cache;
    this.queryMetadata = queryMetadata;
    this.cacheConfig = cacheConfig;
    if (cache && cache.strategy() === "all" && cacheConfig === void 0) {
      this.cacheConfig = { enable: true, autoInvalidate: true };
    }
    if (!this.cacheConfig?.enable) {
      this.cacheConfig = void 0;
    }
  }
  authToken;
  getQuery() {
    return this.query;
  }
  mapResult(response, _isFromBatch) {
    return response;
  }
  /** @internal */
  setToken(token) {
    this.authToken = token;
    return this;
  }
  static [entityKind] = "PgPreparedQuery";
  /** @internal */
  joinsNotNullableMap;
  /** @internal */
  async queryWithCache(queryString, params, query) {
    if (this.cache === void 0 || is(this.cache, NoopCache) || this.queryMetadata === void 0) {
      try {
        return await query();
      } catch (e) {
        throw new DrizzleQueryError(queryString, params, e);
      }
    }
    if (this.cacheConfig && !this.cacheConfig.enable) {
      try {
        return await query();
      } catch (e) {
        throw new DrizzleQueryError(queryString, params, e);
      }
    }
    if ((this.queryMetadata.type === "insert" || this.queryMetadata.type === "update" || this.queryMetadata.type === "delete") && this.queryMetadata.tables.length > 0) {
      try {
        const [res] = await Promise.all([
          query(),
          this.cache.onMutate({ tables: this.queryMetadata.tables })
        ]);
        return res;
      } catch (e) {
        throw new DrizzleQueryError(queryString, params, e);
      }
    }
    if (!this.cacheConfig) {
      try {
        return await query();
      } catch (e) {
        throw new DrizzleQueryError(queryString, params, e);
      }
    }
    if (this.queryMetadata.type === "select") {
      const fromCache = await this.cache.get(
        this.cacheConfig.tag ?? (await hashQuery(queryString, params)),
        this.queryMetadata.tables,
        this.cacheConfig.tag !== void 0,
        this.cacheConfig.autoInvalidate
      );
      if (fromCache === void 0) {
        let result;
        try {
          result = await query();
        } catch (e) {
          throw new DrizzleQueryError(queryString, params, e);
        }
        await this.cache.put(
          this.cacheConfig.tag ?? (await hashQuery(queryString, params)),
          result,
          // make sure we send tables that were used in a query only if user wants to invalidate it on each write
          this.cacheConfig.autoInvalidate ? this.queryMetadata.tables : [],
          this.cacheConfig.tag !== void 0,
          this.cacheConfig.config
        );
        return result;
      }
      return fromCache;
    }
    try {
      return await query();
    } catch (e) {
      throw new DrizzleQueryError(queryString, params, e);
    }
  }
}
class PgSession {
  constructor(dialect) {
    this.dialect = dialect;
  }
  static [entityKind] = "PgSession";
  /** @internal */
  execute(query, token) {
    return tracer.startActiveSpan("drizzle.operation", () => {
      const prepared = tracer.startActiveSpan("drizzle.prepareQuery", () => {
        return this.prepareQuery(
          this.dialect.sqlToQuery(query),
          void 0,
          void 0,
          false
        );
      });
      return prepared.setToken(token).execute(void 0, token);
    });
  }
  all(query) {
    return this.prepareQuery(
      this.dialect.sqlToQuery(query),
      void 0,
      void 0,
      false
    ).all();
  }
  /** @internal */
  async count(sql2, token) {
    const res = await this.execute(sql2, token);
    return Number(
      res[0]["count"]
    );
  }
}
class PgTransaction extends PgDatabase {
  constructor(dialect, session, schema, nestedIndex = 0) {
    super(dialect, session, schema);
    this.schema = schema;
    this.nestedIndex = nestedIndex;
  }
  static [entityKind] = "PgTransaction";
  rollback() {
    throw new TransactionRollbackError();
  }
  /** @internal */
  getTransactionConfigSQL(config) {
    const chunks = [];
    if (config.isolationLevel) {
      chunks.push(`isolation level ${config.isolationLevel}`);
    }
    if (config.accessMode) {
      chunks.push(config.accessMode);
    }
    if (typeof config.deferrable === "boolean") {
      chunks.push(config.deferrable ? "deferrable" : "not deferrable");
    }
    return sql.raw(chunks.join(" "));
  }
  setTransaction(config) {
    return this.session.execute(sql`set transaction ${this.getTransactionConfigSQL(config)}`);
  }
}
export {
  PgPreparedQuery,
  PgSession,
  PgTransaction
};
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