ArangoDB在事务中使用图形模块

BEGIN TRANSACTION;

const { db } = require('@arangodb');
const transaction = db._createTransaction({
  write: ['your-graph-collection'],
  read: ['your-graph-collection']
});

transaction.run('FOR doc IN your-graph-collection FILTER doc._key == @key RETURN doc', { key: 'vertex-key' });

transaction.run('INSERT { _from: @from, _to: @to, label: @label } INTO your-graph-collection', {
  from: 'vertex-from-key',
  to: 'vertex-to-key',
  label: 'edge-label'
});

COMMIT;

transaction.commit().then(() => {
  console.log('Transaction committed successfully.');
}).catch((err) => {
  console.error('Failed to commit transaction:', err);
});

const { db } = require('@arangodb');

async function runTransaction() {
  const transaction = db._createTransaction({
    write: ['your-graph-collection'],
    read: ['your-graph-collection']
  });

  try {
    // 添加顶点
    await transaction.run('INSERT { _key: @key, name: @name } INTO your-graph-collection', {
      key: 'vertex-key',
      name: 'Vertex Name'
    });

    // 添加边
    await transaction.run('INSERT { _from: @from, _to: @to, label: @label } INTO your-graph-collection', {
      from: 'vertex-key',
      to: 'another-vertex-key',
      label: 'FRIEND'
    });

    // 提交事务
    await transaction.commit();
    console.log('Transaction committed successfully.');
  } catch (err) {
    console.error('Failed to commit transaction:', err);
  }
}

runTransaction().catch(console.error);