def get(self):
form = self.get_form(f.register_form)
form_error_message = f.FormContainer()
args = {
'form': form,
'form_error_message': form_error_message,
}
self.jinja_render('dev_register.html', **args)
def validate(self, form, form_define):
form_error_message = f.FormContainer()
error = False
for field, validator in form_define.iteritems():
if error: #fail fast
break
if field == '_form':
continue
form_error_message[field] = validator(form[field])
error = error or bool(form_error_message[field])
if not error and '_form' in form_define:
form_error_message['form'] = form_define['_form'](form)
error = error or bool(form_error_message['form'])
return error, form_error_message
def get(self, bid, cid):
chapter = db.query(m.Chapter).\
filter_by(id=cid, book_id=bid).first()
if chapter is None:
raise tornado.web.HTTPError(404)
book = db.query(m.Book).filter_by(id=bid).first()
args = dict(chapter=chapter, book=book)
paging = f.FormContainer()
index = book.chapters.index(chapter)
if index > 0:
paging.pre = book.chapters[index - 1]
if index < len(book.chapters) - 1:
paging.post = book.chapters[index + 1]
args['paging'] = paging
self.jinja_render("dev_chapter.html", **args)
def get(self, bid):
book = db.query(m.Book).filter_by(id=bid).first()
if book is None:
raise tornado.web.HTTPError(404)
cid = self.get_safe_argument('cid', int)
if cid is not None:
chapter = db.query(m.Chapter).\
filter_by(id=cid, book_id=bid).first()
if chapter is None:
raise tornado.web.HTTPError(404)
form = self.get_form(f.chapter_form, chapter)
form.cid = cid
else:
form = self.get_form(f.chapter_form)
form_error_message = f.FormContainer()
args = dict(bid=bid, form=form, form_error_message=form_error_message)
self.jinja_render('dev_edit_chapter', **args)
def get(self):
"""
添加新的书或者修改存在的书的信息
"""
bid = self.get_safe_argument('bid', int)
if bid is None:
form = self.get_form(f.edit_book_form)
else:
#TODO handler exception. bid maybe illegal
book = db.query(m.Book).filter_by(id=bid).first()
if not book:
raise tornado.web.HTTPError(404)
form = self.get_form(f.edit_book_form, book)
form.bid = bid
args = {'form': form, 'form_error_message ': f.FormContainer()}
self.jinja_render("dev_edit_book.html", **args)
def get_form(self, form_define, instance=None):
"""
如果没有instance这个参数
则通过get_argument 方法
从handler.request.argument 获取
如果有instance则从instance获取
instance是一个模型实例
如果想获取一个空form 直接生成一个
FormContainer实例
"""
form = f.FormContainer()
if instance is not None:
get = lambda field: getattr(instance, field, '')
else:
get = lambda field: self.get_argument(field, '')
for field in form_define.keys():
if field == '_form':
continue
form[field] = get(field)
return form