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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