KnexJS Transaction










0














How can I execute this transaction? My problem is the correct use of for instruction.



app.db.transaction(function (trx) 

app.db('sales_record_products').transacting(trx).insert(products)
.then(_ =>

for (let i = 0; i < stockProducts.ids.length; i++)
app.db('products').transacting(trx).where('id',stockProducts.ids[i]).update(quantity: stockProducts.results[i])
.then(_ =>

)



)
.then(trx.commit)
.catch(trx.rollback)
)
.then(_ => res.status(200).json(success: true))
.catch(err => res.status(500).send(err))









share|improve this question




























    0














    How can I execute this transaction? My problem is the correct use of for instruction.



    app.db.transaction(function (trx) 

    app.db('sales_record_products').transacting(trx).insert(products)
    .then(_ =>

    for (let i = 0; i < stockProducts.ids.length; i++)
    app.db('products').transacting(trx).where('id',stockProducts.ids[i]).update(quantity: stockProducts.results[i])
    .then(_ =>

    )



    )
    .then(trx.commit)
    .catch(trx.rollback)
    )
    .then(_ => res.status(200).json(success: true))
    .catch(err => res.status(500).send(err))









    share|improve this question


























      0












      0








      0







      How can I execute this transaction? My problem is the correct use of for instruction.



      app.db.transaction(function (trx) 

      app.db('sales_record_products').transacting(trx).insert(products)
      .then(_ =>

      for (let i = 0; i < stockProducts.ids.length; i++)
      app.db('products').transacting(trx).where('id',stockProducts.ids[i]).update(quantity: stockProducts.results[i])
      .then(_ =>

      )



      )
      .then(trx.commit)
      .catch(trx.rollback)
      )
      .then(_ => res.status(200).json(success: true))
      .catch(err => res.status(500).send(err))









      share|improve this question















      How can I execute this transaction? My problem is the correct use of for instruction.



      app.db.transaction(function (trx) 

      app.db('sales_record_products').transacting(trx).insert(products)
      .then(_ =>

      for (let i = 0; i < stockProducts.ids.length; i++)
      app.db('products').transacting(trx).where('id',stockProducts.ids[i]).update(quantity: stockProducts.results[i])
      .then(_ =>

      )



      )
      .then(trx.commit)
      .catch(trx.rollback)
      )
      .then(_ => res.status(200).json(success: true))
      .catch(err => res.status(500).send(err))






      node.js knex.js






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 12 at 14:10









      Al Foиce ѫ

      3,09462239




      3,09462239










      asked Nov 12 at 13:08









      Guilherme De Menezes Ferreira

      52




      52






















          1 Answer
          1






          active

          oldest

          votes


















          0














          Why not using something like



          // Start a database transaction
          return app.db.transaction(function (trx)

          // Insert products
          return trx.insert(products)
          .then(function (newIds)

          // Product inserted, you have the new database id in newIds

          // Update all product individually but sequentially
          return Promise.mapSeries(stockProducts, function (sp)

          // Update a single product
          return trx
          .table('products')
          .where('id', stockProducts.ids[i])
          .update( quantity: stockProducts.results[i] );
          );

          );

          );





          share|improve this answer




















          • error: UnhandledPromiseRejectionWarning: Error: ER_PARSE_ERROR: You have an error in your SQL syntax; I'm using knexjs
            – Guilherme De Menezes Ferreira
            Nov 12 at 15:17











          • works. Thanks for help app.db.transaction(function (trx) app.db('sales_record_products').transacting(trx).insert(products).then(_ => return Promise.mapSeries(stockProducts.ids, function(a, index) return app.db('products').transacting(trx).where('id', stockProducts.ids[index]).update(quantity: stockProducts.results[index]) ).then(trx.commit) .catch(trx.rollback) ) .then(trx.commit) .catch(trx.rollback) ) .then(_ => res.status(200).json(success: true)) .catch(err => res.status(500).send(err))
            – Guilherme De Menezes Ferreira
            Nov 12 at 15:41











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          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          0














          Why not using something like



          // Start a database transaction
          return app.db.transaction(function (trx)

          // Insert products
          return trx.insert(products)
          .then(function (newIds)

          // Product inserted, you have the new database id in newIds

          // Update all product individually but sequentially
          return Promise.mapSeries(stockProducts, function (sp)

          // Update a single product
          return trx
          .table('products')
          .where('id', stockProducts.ids[i])
          .update( quantity: stockProducts.results[i] );
          );

          );

          );





          share|improve this answer




















          • error: UnhandledPromiseRejectionWarning: Error: ER_PARSE_ERROR: You have an error in your SQL syntax; I'm using knexjs
            – Guilherme De Menezes Ferreira
            Nov 12 at 15:17











          • works. Thanks for help app.db.transaction(function (trx) app.db('sales_record_products').transacting(trx).insert(products).then(_ => return Promise.mapSeries(stockProducts.ids, function(a, index) return app.db('products').transacting(trx).where('id', stockProducts.ids[index]).update(quantity: stockProducts.results[index]) ).then(trx.commit) .catch(trx.rollback) ) .then(trx.commit) .catch(trx.rollback) ) .then(_ => res.status(200).json(success: true)) .catch(err => res.status(500).send(err))
            – Guilherme De Menezes Ferreira
            Nov 12 at 15:41
















          0














          Why not using something like



          // Start a database transaction
          return app.db.transaction(function (trx)

          // Insert products
          return trx.insert(products)
          .then(function (newIds)

          // Product inserted, you have the new database id in newIds

          // Update all product individually but sequentially
          return Promise.mapSeries(stockProducts, function (sp)

          // Update a single product
          return trx
          .table('products')
          .where('id', stockProducts.ids[i])
          .update( quantity: stockProducts.results[i] );
          );

          );

          );





          share|improve this answer




















          • error: UnhandledPromiseRejectionWarning: Error: ER_PARSE_ERROR: You have an error in your SQL syntax; I'm using knexjs
            – Guilherme De Menezes Ferreira
            Nov 12 at 15:17











          • works. Thanks for help app.db.transaction(function (trx) app.db('sales_record_products').transacting(trx).insert(products).then(_ => return Promise.mapSeries(stockProducts.ids, function(a, index) return app.db('products').transacting(trx).where('id', stockProducts.ids[index]).update(quantity: stockProducts.results[index]) ).then(trx.commit) .catch(trx.rollback) ) .then(trx.commit) .catch(trx.rollback) ) .then(_ => res.status(200).json(success: true)) .catch(err => res.status(500).send(err))
            – Guilherme De Menezes Ferreira
            Nov 12 at 15:41














          0












          0








          0






          Why not using something like



          // Start a database transaction
          return app.db.transaction(function (trx)

          // Insert products
          return trx.insert(products)
          .then(function (newIds)

          // Product inserted, you have the new database id in newIds

          // Update all product individually but sequentially
          return Promise.mapSeries(stockProducts, function (sp)

          // Update a single product
          return trx
          .table('products')
          .where('id', stockProducts.ids[i])
          .update( quantity: stockProducts.results[i] );
          );

          );

          );





          share|improve this answer












          Why not using something like



          // Start a database transaction
          return app.db.transaction(function (trx)

          // Insert products
          return trx.insert(products)
          .then(function (newIds)

          // Product inserted, you have the new database id in newIds

          // Update all product individually but sequentially
          return Promise.mapSeries(stockProducts, function (sp)

          // Update a single product
          return trx
          .table('products')
          .where('id', stockProducts.ids[i])
          .update( quantity: stockProducts.results[i] );
          );

          );

          );






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 12 at 14:49









          erakis

          4318




          4318











          • error: UnhandledPromiseRejectionWarning: Error: ER_PARSE_ERROR: You have an error in your SQL syntax; I'm using knexjs
            – Guilherme De Menezes Ferreira
            Nov 12 at 15:17











          • works. Thanks for help app.db.transaction(function (trx) app.db('sales_record_products').transacting(trx).insert(products).then(_ => return Promise.mapSeries(stockProducts.ids, function(a, index) return app.db('products').transacting(trx).where('id', stockProducts.ids[index]).update(quantity: stockProducts.results[index]) ).then(trx.commit) .catch(trx.rollback) ) .then(trx.commit) .catch(trx.rollback) ) .then(_ => res.status(200).json(success: true)) .catch(err => res.status(500).send(err))
            – Guilherme De Menezes Ferreira
            Nov 12 at 15:41

















          • error: UnhandledPromiseRejectionWarning: Error: ER_PARSE_ERROR: You have an error in your SQL syntax; I'm using knexjs
            – Guilherme De Menezes Ferreira
            Nov 12 at 15:17











          • works. Thanks for help app.db.transaction(function (trx) app.db('sales_record_products').transacting(trx).insert(products).then(_ => return Promise.mapSeries(stockProducts.ids, function(a, index) return app.db('products').transacting(trx).where('id', stockProducts.ids[index]).update(quantity: stockProducts.results[index]) ).then(trx.commit) .catch(trx.rollback) ) .then(trx.commit) .catch(trx.rollback) ) .then(_ => res.status(200).json(success: true)) .catch(err => res.status(500).send(err))
            – Guilherme De Menezes Ferreira
            Nov 12 at 15:41
















          error: UnhandledPromiseRejectionWarning: Error: ER_PARSE_ERROR: You have an error in your SQL syntax; I'm using knexjs
          – Guilherme De Menezes Ferreira
          Nov 12 at 15:17





          error: UnhandledPromiseRejectionWarning: Error: ER_PARSE_ERROR: You have an error in your SQL syntax; I'm using knexjs
          – Guilherme De Menezes Ferreira
          Nov 12 at 15:17













          works. Thanks for help app.db.transaction(function (trx) app.db('sales_record_products').transacting(trx).insert(products).then(_ => return Promise.mapSeries(stockProducts.ids, function(a, index) return app.db('products').transacting(trx).where('id', stockProducts.ids[index]).update(quantity: stockProducts.results[index]) ).then(trx.commit) .catch(trx.rollback) ) .then(trx.commit) .catch(trx.rollback) ) .then(_ => res.status(200).json(success: true)) .catch(err => res.status(500).send(err))
          – Guilherme De Menezes Ferreira
          Nov 12 at 15:41





          works. Thanks for help app.db.transaction(function (trx) app.db('sales_record_products').transacting(trx).insert(products).then(_ => return Promise.mapSeries(stockProducts.ids, function(a, index) return app.db('products').transacting(trx).where('id', stockProducts.ids[index]).update(quantity: stockProducts.results[index]) ).then(trx.commit) .catch(trx.rollback) ) .then(trx.commit) .catch(trx.rollback) ) .then(_ => res.status(200).json(success: true)) .catch(err => res.status(500).send(err))
          – Guilherme De Menezes Ferreira
          Nov 12 at 15:41


















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