implementing more than 30 technologies

functions/adoption/libs/queries.py

@@ -1,32 +1,37 @@
 import os
-import json
 from google.cloud import firestore
+from google.cloud.firestore_v1.base_query import FieldFilter
 from .result import Result 
 from .utils import convert_to_array
 
 DB = firestore.Client(project=os.environ.get('PROJECT'), database=os.environ.get('DATABASE'))
+TABLE = 'adoption'
 
 def list_data(params):
-  ref = DB.collection(u'adoption')
 
-  query = ref
+  technology_array = convert_to_array(params['technology'])
+  data = []
 
-  if 'start' in params:
-    query = query.where('date', '>=', params['start'])
-  if 'end' in params:
-    query = query.where('date', '<=', params['end'])
-  if 'geo' in params:
-    query = query.where('geo', '==', params['geo'])
-  if 'technology' in params:
-    params_array = convert_to_array(params['technology'])
-    query = query.where('technology', 'in', params_array)
-  if 'rank' in params:
-    query = query.where('rank', '==', params['rank'])
+  for technology in technology_array:
+    query = DB.collection(TABLE)
 
-  documents = query.stream()
+    if 'start' in params:
+      query = query.where(filter=FieldFilter('date', '>=', params['start']))
 
-  data = []
-  for doc in documents:
-      data.append(doc.to_dict())
+    if 'end' in params:
+      query = query.where(filter=FieldFilter('date', '<=', params['end']))
+
+    if 'geo' in params:
+      query = query.where(filter=FieldFilter('geo', '==', params['geo']))
+
+    if 'rank' in params:
+      query = query.where(filter=FieldFilter('rank', '==', params['rank']))
+
+    query = query.where(filter=FieldFilter('technology', '==', technology))
+
+    documents = query.stream()
+
+    for doc in documents:
+        data.append(doc.to_dict())
 
-  return Result(result=data)
+  return Result(result=data)