Add UTM pageview metrics to API

queries/analytics/pageview/getPageviewParams.js

@@ -0,0 +1,38 @@
+import { parseFilters, rawQuery } from 'lib/queries';
+
+export function getPageviewParams(
+  param,
+  website_id,
+  start_at,
+  end_at,
+  column,
+  table,
+  filters = {},
+) {
+  const params = [param, website_id, start_at, end_at];
+  const { pageviewQuery, sessionQuery, eventQuery, joinSession } = parseFilters(
+    table,
+    column,
+    filters,
+    params,
+  );
+
+  return rawQuery(
+    `select * from (
+        select
+            url, split_part(split_part(url, concat($1, '='), 2), '&', 1) param
+        from
+            pageview
+            ${joinSession}
+            ${pageviewQuery}
+            ${joinSession && sessionQuery}
+            ${eventQuery}
+        where
+            ${table}.website_id=$2 and ${table}.created_at between $3 and $4
+        group by 1, 2
+        order by 2 desc
+    ) q
+    where q.param <> ''`,
+    params,
+  );
+}