choose number of questions per topic in the yaml configuration

Miguel Barão
1 parent c1422ade
Showing 5 changed files with 18 additions and 42 deletions Show diff stats
BUGS.md
demo/demo.yaml
knowledge.py
learnapp.py
serve.py
@@ -5,10 +5,6 @@
     "file: questions.yaml"   (default questions.yaml)
     "shuffle: True/False"    (default False)
     "choose: 6"              (default tudo)
-- SQLAlchemy error (rollback em accao no final de um topico):
-    Users/mjsb/Library/Python/3.7/lib/python/site-packages/sqlalchemy/sql/crud.py:700: SAWarning: Column 'studenttopic.student_id' is marked as a member of the primary key for table 'studenttopic', but has no Python-side or server-side default generator indicated, nor does it indicate 'autoincrement=True' or 'nullable=True', and no explicit value is passed.  Primary key columns typically may not store NULL. Note that as of SQLAlchemy 1.1, 'autoincrement=True' must be indicated explicitly for composite (e.g. multicolumn) primary keys if AUTO_INCREMENT/SERIAL/IDENTITY behavior is expected for one of the columns in the primary key. CREATE TABLE statements are impacted by this change as well on most backends.
-  util.warn(msg)
-
 - quando a pergunta devolve comments, este é apresentado, mas fica persistente nas tentativas seguintes. devia ser limpo apos a segunda submissao.
 - a opcao max_tries na especificacao das perguntas é cumbersome... usar antes tries?
 - tabelas nas perguntas radio/checkbox não ocupam todo o espaço como em question.
 title: Example
 database: students.db
+# default global values
+file: questions.yaml
+shuffle: True
+choose: 6
+
 # path prefix applied to the topics
 path: ./demo
@@ -16,6 +21,9 @@ topics:
   # topic without dependencies
   math:
     name: Matemática
+    file: questions.yaml
+    choose: 6
+    shuffle: True
   # topic with one dependency
   solar_system:
@@ -32,8 +32,8 @@ class StudentKnowledge(object):
         self.topic_sequence = self.recommend_topic_sequence() # ['a', 'b', ...]
         self.unlock_topics() # whose dependencies have been done
         self.current_topic = None
-
-        self.MAX_QUESTIONS = 6  # FIXME get from yaml configuration file??
+        print(deps.graph)
+        self.MAX_QUESTIONS = deps.graph['config'].get('choose', 10)
     # ------------------------------------------------------------------------
     # Updates the proficiency levels of the topics, with forgetting factor
@@ -29,11 +29,9 @@ class LearnAppException(Exception):
 # ============================================================================
 # helper functions
 # ============================================================================
-async def check_password(try_pw, password):
-    try_pw = try_pw.encode('utf-8')
+async def check_password(try_pw, pw):
     loop = asyncio.get_running_loop()
-    hashed_pw = await loop.run_in_executor(None, bcrypt.hashpw, try_pw, password)
-    return password == hashed_pw
+    return pw == await loop.run_in_executor(None, bcrypt.hashpw, try_pw.encode('utf-8'), pw)
 def bcrypt_hash_gen(pw):
     return bcrypt.hashpw(pw.encode('utf-8'), bcrypt.gensalt())
@@ -62,16 +60,9 @@ class LearnApp(object):
     def __init__(self, config_file):
         # state of online students
         self.online = {}
-
-        config = load_yaml(config_file)
-
-        # connect to database and checks for registered students
-        self.db_setup(config['database'])
-
-        # dependency graph shared by all students
+        config = load_yaml(config_file[0])
+        self.db_setup(config['database'])   # setup and check students
         self.deps = build_dependency_graph(config)
-
-        # add topics from dependency graph to the database, if missing
         self.db_add_missing_topics(self.deps.nodes())
     # ------------------------------------------------------------------------
@@ -98,8 +89,7 @@ class LearnApp(object):
             with self.db_session() as s:
                 tt = s.query(StudentTopic).filter_by(student_id=uid)
-            state = {t.topic_id:
-                {
+            state = {t.topic_id: {
                 'level': t.level,
                 'date': datetime.strptime(t.date, "%Y-%m-%d %H:%M:%S.%f")
                 } for t in tt}
@@ -108,8 +98,7 @@ class LearnApp(object):
                 'number': uid,
                 'name': name,
                 'state': StudentKnowledge(self.deps, state=state),
-                # 'learning': None,  # current topic learning
-            }
+                }
         else:
             logger.info(f'User "{uid}" wrong password!')
@@ -209,23 +198,6 @@ class LearnApp(object):
             logger.info(f'User "{uid}" started "{topic}"')
     # ------------------------------------------------------------------------
-    # Start new topic
-    # ------------------------------------------------------------------------
-    # def start_learning(self, uid, topic):
-    #     try:
-    #         ok = self.online[uid]['state'].init_learning(topic)
-    #     except KeyError as e:
-    #         logger.warning(
-    #             f'User "{uid}" tried to open nonexistent topic: "{topic}"')
-    #         raise e
-    #     else:
-    #         if ok:
-    #             logger.info(f'User "{uid}" started "{topic}"')
-    #         else:
-    #             logger.warning(f'User "{uid}" denied locked "{topic}"')
-    #         return ok
-
-    # ------------------------------------------------------------------------
     # Fill db table 'Topic' with topics from the graph if not already there.
     # ------------------------------------------------------------------------
     def db_add_missing_topics(self, nn):
@@ -330,7 +302,7 @@ def build_dependency_graph(config={}):
     prefix = config.get('path', '.')
     title = config.get('title', '')
     database = config.get('database', 'students.db')
-    g = nx.DiGraph(path=prefix, title=title, database=database)
+    g = nx.DiGraph(path=prefix, title=title, database=database, config=config)
     # iterate over topics and build graph
     topics = config.get('topics', {})
@@ -356,7 +356,7 @@ def main():
     # --- start application
     logging.info('Starting App')
     try:
-        learnapp = LearnApp(arg.conffile[0])
+        learnapp = LearnApp(arg.conffile)
     except Exception as e:
         logging.critical('Failed to start backend application')
         raise e
	@@ -356,7 +356,7 @@ def main():		@@ -356,7 +356,7 @@ def main():
356	# --- start application	356	# --- start application
357	logging.info('Starting App')	357	logging.info('Starting App')
358	try:	358	try:
359	- learnapp = LearnApp(arg.conffile[0])	359	+ learnapp = LearnApp(arg.conffile)
360	except Exception as e:	360	except Exception as e:
361	logging.critical('Failed to start backend application')	361	logging.critical('Failed to start backend application')
362	raise e	362	raise e