~azzar1/unity/add-show-desktop-key

makeuser and common.db now allow StudentID to be unsupplied / None.
This will insert a NULL into the DB (allowed by the schema).

added added

removed removed

def _escape(str):

"""Wrapper around pg.escape_string. Escapes the string for use in SQL, and

also quotes it to make sure that every string used in a query is quoted.

If str is None, returns "NULL", which is unescaped and thus a valid SQL

value.

"""

# "E'" is postgres's way of making "escape" strings.

# Such strings allow backslashes to escape things. Since escape_string

# into E mode.

# Ref: http://www.postgresql.org/docs/8.2/static/sql-syntax-lexical.html

# WARNING: PostgreSQL-specific code

if str is None:

return "NULL"

return "E'" + pg.escape_string(str) + "'"

def _passhash(password):