Initial commit

flow/helper/db_helper.js

@@ -0,0 +1,29 @@
+
+function promisifyBuilder(builder)
+{  
+  return new Promise((resolve, reject) => {
+
+    builder.callback(function(err, response) {
+
+      if(err != null) reject(err);
+      resolve(response);
+    });   
+  })
+}
+
+function makeMapFromDbResult(response, key)
+{
+  let data = {};
+  for(let i = 0; i < response.length; i++)
+  {
+    let record = response[i];
+    data[ record[key] ] = record;
+  }
+
+  return data;
+}
+
+module.exports = {
+    promisifyBuilder,
+    makeMapFromDbResult
+  }