QGL examples have database related errors

[rblazarus]

Using branch develop, QGL examples have database related errors. Exhibits in Ex2 and Ex3. See line 2: cl = ChannelLibrary(db_resource_name="./example.sqlite")

Creating engine...

---

OperationalError Traceback (most recent call last)
//anaconda3/lib/python3.7/site-packages/sqlalchemy/engine/base.py in _execute_context(self, dialect, constructor, statement, parameters, *args)
1243 self.dialect.do_execute(
-> 1244 cursor, statement, parameters, context
1245 )

//anaconda3/lib/python3.7/site-packages/sqlalchemy/engine/default.py in do_execute(self, cursor, statement, parameters, context)
549 def do_execute(self, cursor, statement, parameters, context=None):
--> 550 cursor.execute(statement, parameters)
551

OperationalError: no such column: receiver.reference_freq

The above exception was the direct cause of the following exception:

OperationalError Traceback (most recent call last)
in
----> 1 cl = ChannelLibrary(db_resource_name="./example.sqlite")

~/Repos/QGL/QGL/ChannelLibraries.py in init(self, db_resource_name, db_provider)
113 self.session.commit()
114
--> 115 self.update_channelDict()
116
117 # Update the global reference

[dieris]

Should be fixed by b8c7620

[dieris]

example.sqlite has been removed