sql-js / sql-js/sql.js

A transaction issue

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Dominant language
JavaScript
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Description

I just found I can't do a transaction.

LOG: 'BEGIN', []
LOG: 'INSERT OR IGNORE INTO device_model (device_sn) VALUES (?);', ['abcdefg']
LOG: 'COMMIT', []
LOG: 'executeSql error -> ', 'cannot commit - no transaction is active'

My table.

CREATE TABLE IF NOT EXISTS device_model(device_sn TEXT PRIMARY KEY ON CONFLICT REPLACE NOT NULL, status TEXT, properties TEXT);

SqliteObject class

export class SQLiteObject {
  private _objectInstance;

  constructor() {
    this._objectInstance = new SQL.Database();
  }

  public executeSql(statement: string, params: any): Promise<any> {

    return new Promise((resolve, reject) => {
      try {
        console.log(statement, params);
        const st = this._objectInstance.prepare(statement, params);
        const rows: Array<any> = [];

        while (st.step()) {
          let row = st.getAsObject();
          rows.push(row);
        }
        st.free();
        const payload = {
          rows: {
            item: function (i) {
              return rows[i];
            },
            length: rows.length
          },
          rowsAffected: this._objectInstance.getRowsModified() || 0,
          insertId: this._objectInstance.insertId || void 0
        };

        resolve(payload);
      } catch (e) {
        console.log('executeSql error -> ', e.message);
        reject(e);
      }
    });
  }

}

Did I do something wrong?

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  4. Open a pull request that references the issue number.

Research direction

The reported entry point is SQLiteObject.executeSql, using SQL.Database; start by reproducing the logged BEGIN, INSERT OR IGNORE, and COMMIT sequence. Compare the transaction behavior with the SQLite table definition and determine the expected handling of the no-active-transaction error; done means the reported sequence has a clear, verified outcome.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript, sqlite
Domain
database
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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