Changes between Version 18 and Version 19 of DeveloperGuidelines/EdenMobile/Services/emDB

Timestamp:

06/12/18 08:29:41 (7 years ago)

Author:

Dominic König

Comment:

--

DeveloperGuidelines/EdenMobile/Services/emDB

@@ -200 +200 @@
 
 NB {{{limitby: [0,1]}}} can also be written as simply {{{limitby: 1}}}
+
+=== Aggregation and Groupby ===
+
+Aggregates can be constructed from 
+
+The {{{select()}}} method accepts an object with arguments as (optional) second parameter, e.g. {{{limitby}}} and {{{orderby}}}:
+
+{{{#!js
+set.select(
+    [array of fields], 
+    {
+        limitby: [0,1], 
+        orderby: field
+    },
+    function(rows) {...}
+);
+}}}