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# -*- coding: utf-8 -*-
import flask_script as script
class Command(script.Command):
"""
This changes the Command class from Flask-Script in such way,
that url_for will generate correct urls.
"""
def __call__(self, app=None, *args, **kwargs):
base_url = '%s://%s%s' % (
app.config.get('PREFERRED_URL_SCHEME') or 'http',
app.config.get('SERVER_NAME') or 'localhost',
app.config.get('APPLICATION_ROOT') or '/')
with app.test_request_context(base_url=base_url):
return self.run(*args, **kwargs)
class TablePrinter(object):
def __init__(self, headers=None, separator='|'):
self.headers = headers
self.separator = separator
self.format_string = ''
self.widths = list()
if headers is not None:
self._calulate_widths([headers])
def _calulate_widths(self, rows):
def _get_column_count(rows):
return min([len(row) for row in rows])
def _column_width(column, width):
widths = [len(str(elem)) for elem in column]
widths.append(width)
return max(widths)
columns = _get_column_count(rows)
while len(self.widths) < columns:
self.widths.append(0)
self.widths = [_column_width(column, width)
for column, width
in zip(list(zip(*rows)), self.widths)]
self._update_format_string()
def _update_format_string(self):
sep = ' %s ' % self.separator
self.format_string = '%s %s %s' % (
self.separator,
sep.join(['%%-%ds' % width for width in self.widths]),
self.separator)
def output(self, rows):
if len(rows) > 0:
self._calulate_widths(rows)
if self.headers is not None:
self._print_row(self.headers)
self._print_headline()
for row in rows:
self._print_row(row)
def _print_headline(self):
print(('%s%s%s' % (
self.separator,
self.separator.join(['-' * (width + 2) for width in self.widths]),
self.separator)))
def _print_row(self, row):
print((self.format_string % tuple(row)))
class ConsoleForm(object):
_ready = False
def __init__(self, formcls, **kwargs):
self.form = formcls()
self._fill(kwargs)
self._ready = True
def _fill(self, data):
for key, value in list(data.items()):
field = getattr(self.form, key, None)
if field is not None:
field.data = value
def print_errors(self):
for field, errors in list(self.form.errors.items()):
if len(errors) > 1:
print(('%s:' % field))
for error in errors:
print((' %s' % error))
else:
print(('%s: %s' % (field, errors[0])))
def __getattr__(self, name):
return getattr(self.form, name)
def __setattr__(self, name, value):
if self._ready and name not in self.__dict__:
setattr(self.form, name, value)
else:
super(ConsoleForm, self).__setattr__(name, value)
def __delattr__(self, name):
if self._ready and name not in self.__dict__:
delattr(self.form, name)
else:
super(ConsoleForm, self).__delattr__(name)
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