Query checked out books added to db_layer
This commit is contained in:
parent
015f65b0fc
commit
af94db4071
26
db_layer.py
26
db_layer.py
|
@ -209,6 +209,14 @@ def _query_to_book(book_query):
|
||||||
# Empty entries return None, which are removed from the dict.
|
# Empty entries return None, which are removed from the dict.
|
||||||
return dict(filter(lambda t:t[1], zip(columns,book_query)))
|
return dict(filter(lambda t:t[1], zip(columns,book_query)))
|
||||||
|
|
||||||
|
def _query_to_book_checkout(book_query):
|
||||||
|
# Make a dict out of column name and query results.
|
||||||
|
# Empty entries return None, which are removed from the dict.
|
||||||
|
b = _query_to_book(book_query)
|
||||||
|
b['uwid'] = book_query[-2]
|
||||||
|
b['date'] = book_query[-1]
|
||||||
|
return b
|
||||||
|
|
||||||
#########################################
|
#########################################
|
||||||
# Category related functions
|
# Category related functions
|
||||||
########################################
|
########################################
|
||||||
|
@ -306,6 +314,24 @@ def return_book(book_id):
|
||||||
conn.commit()
|
conn.commit()
|
||||||
c.close()
|
c.close()
|
||||||
|
|
||||||
|
def get_checkedout_books():
|
||||||
|
'''
|
||||||
|
retrieves checked out books. The returned books also have the fields
|
||||||
|
uwid: ID of person who signed out the book, and
|
||||||
|
date: date when the book was checked out
|
||||||
|
'''
|
||||||
|
conn = sqlite3.connect(_catalogue_db_file)
|
||||||
|
c = conn.cursor()
|
||||||
|
query = 'ATTACH "' + _checkout_db_file + '" AS co'
|
||||||
|
c.execute(query)
|
||||||
|
query = ("SELECT "+",".join(map(_colify,columns))+",uwid,date_out FROM "+_book_table+
|
||||||
|
" JOIN co."+_checkout_table+
|
||||||
|
" USING (id) ;")
|
||||||
|
c.execute(query)
|
||||||
|
books = [_query_to_book_checkout(b) for b in c]
|
||||||
|
c.close()
|
||||||
|
return books
|
||||||
|
|
||||||
#########################################
|
#########################################
|
||||||
# Database initialization
|
# Database initialization
|
||||||
#########################################
|
#########################################
|
||||||
|
|
Loading…
Reference in New Issue