def __init__(self, root):
self.is_dirty = False
self.top = root
root["menu"] = self.build_menus(root)
main_win = self.build_notebook(root)
main_win.pack(fill="both", expand=True)
self.top.protocol("WM_DELETE_WINDOW", self.ev_close)
self.top.title("Lending Libaray")
data.init_db() # use default file
self.items = data.get_items()
self.members = data.get_members()
self.populate_item_list()
self.populate_member_list()
def __init__(self, root):
self.is_dirty = False
self.top = root
root["menu"] = self.build_menus(root)
main_win = self.build_notebook(root)
main_win.pack(fill="both", expand=True)
self.top.protocol("WM_DELETE_WINDOW", self.ev_close)
self.top.title("Lending Libaray")
data.init_db() # use default file
self.items = data.get_items()
self.members = data.get_members()
self.populate_item_list()
self.populate_member_list()
def get_db():
"""
Opens a new database connection if one does not exist for our current request
context (the g object helps with this task)
在get_db()方法调用中还有一点Flask特性.这个函数在没有连接存在时会打开一个新的连接,而g变量在Flask中是一个特殊对象,
它只对激活请求有效.这在不同的请求对象间保持了数据的一致性.
:return:
"""
if not hasattr(g, "sqlite_db"):
lendydata.init_db()
g.sqlite_db = lendydata.db
return g.sqlite_db
def get_db():
"""
Opens a new database connection if one does not exist for our current request
context (the g object helps with this task)
在get_db()方法调用中还有一点Flask特性.这个函数在没有连接存在时会打开一个新的连接,而g变量在Flask中是一个特殊对象,
它只对激活请求有效.这在不同的请求对象间保持了数据的一致性.
:return:
"""
if not hasattr(g, "sqlite_db"):
lendydata.init_db()
g.sqlite_db = lendydata.db
return g.sqlite_db
