feat: create relations between trades and transactions

migrations/1616687417371-add_internal_tx_to_trades.js

@@ -0,0 +1,22 @@
+const db = require('./db')
+
+exports.up = function (next) {
+  var sql = [
+    `CREATE TABLE cashout_tx_trades (
+      cash_out_tx_id uuid REFERENCES cash_out_txs(id),
+      trade_id serial REFERENCES trades(id),
+      CONSTRAINT cashout_trade_pkey PRIMARY KEY (cash_out_tx_id,trade_id)
+    )`,
+    `CREATE TABLE cashin_tx_trades (
+      cash_in_tx_id uuid REFERENCES cash_in_txs(id),
+      trade_id serial REFERENCES trades(id),
+      CONSTRAINT cashin_trade_pkey PRIMARY KEY (cash_in_tx_id,trade_id)
+    )`
+  ]
+
+  db.multi(sql, next)
+}
+
+exports.down = function (next) {
+  next()
+}