Added a whole lot of views.

Finished quiz API views
Finished question generator and answer eval

ref-test/app/tools/data.py

@@ -1,5 +1,7 @@
 from ..data import data as data_dir
+
 import json
+from random import shuffle
 
 def load(filename:str):
     with open(f'./{data_dir}/{filename}') as file:
@@ -7,4 +9,26 @@ def load(filename:str):
 
 def save(data:dict, filename:str):
     with open(f'./{data_dir}/{filename}', 'w') as file:
-        json.dump(data, file, indent=4)
+        json.dump(data, file, indent=4)
+
+def check_is_json(file):
+    if not '.' in file.filename or not file.filename.rsplit('.',1)[-1] == 'json': return False
+    return True
+
+def validate_json(file):
+    file.stream.seek(0)
+    data = json.loads(file.read())
+    if not type(data) is list: return False
+
+def randomise_list(list:list):
+    _list = list.copy()
+    shuffle(_list)
+    return(_list)
+
+def get_tag_list(dataset:list):
+    output = []
+    for block in dataset:
+        if block['type'] == 'question': output = list(set(output) | set(block['tags']))
+        if block['type'] == 'block':
+            for question in block['questions']: output = list(set(output) | set(question['tags']))
+    return output