Make build_query params all optional, more kwargy.

etiquette/photodb.py

@@ -725,12 +725,12 @@ class PDBPhotoMixin:
             generator = []
         else:
             query = searchhelpers.build_query(
-                orderby,
-                notnulls,
-                minimums,
-                maximums,
                 author_ids=authors,
+                maximums=maximums,
+                minimums=minimums,
                 mmf_results=mmf_results,
+                notnulls=notnulls,
+                orderby=orderby,
             )
             print(query[:200])
             generator = helpers.select_generator(self.sql, query)

etiquette/searchhelpers.py

@@ -7,13 +7,17 @@ from voussoirkit import expressionmatch
 
 
 def build_query(
-        orderby,
-        notnulls,
-        minimums,
-        maximums,
         author_ids=None,
+        maximums=None,
+        minimums=None,
         mmf_results=None,
+        notnulls=None,
+        orderby=None,
     ):
+
+    if notnulls is None:
+        notnulls = set()
+
     query = ['SELECT * FROM photos']
     wheres = set()