WIPP

lib/tx.js

@@ -0,0 +1,36 @@
+const db = require('./db')
+const pgp = require('pg-promise')()
+
+function postCashIn (tx) {
+  const TransactionMode = pgp.txMode.TransactionMode
+  const isolationLevel = pgp.txMode.isolationLevel
+  const tmSRD = new TransactionMode({tiLevel: isolationLevel.serializable})
+
+  function transaction (t) {
+    const sql = 'select * from cash_in_txs where id=$1'
+    return t.one(sql, [tx.id])
+    .then(row => {
+      const newTx = executeTxChange(tx, row)
+
+      if (row) return updateCashOutTx(newTx)
+      insertCashOutTx(newTx)
+    })
+  }
+
+  transaction.txMode = tmSRD
+
+  return db.tx(transaction)
+  // retry failed
+}
+
+function postCashOut (tx) {
+
+}
+
+function post (tx) {
+  if (tx.direction === 'cashIn') return postCashIn(tx)
+  if (tx.direction === 'cashOut') return postCashOut(tx)
+  throw new Error('No such tx direction: %s', tx.direction)
+}
+
+module.exports = {post}