many improvements

cleaned up package structure
included read me
This commit is contained in:
Johannes Gehrs
2013-06-30 17:05:16 +02:00
parent cd2c87ffa1
commit 5c4a5af873
12 changed files with 129 additions and 46 deletions
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# WTForms-ParsleyJS
## What is this?
This is a small library which you can hook into your WTForms form classes in order to enable client side validation.
[WTForms](http://wtforms.simplecodes.com/docs/1.0.4/) allows you to validate your forms on the server side. Ideally, we could reuse these validators on the client side with JavaScript without writing any extra code. This will allow for more direct user feedback in our forms.
This library uses [ParsleyJS](http://parsleyjs.org/documentation.html) for this task. ParsleyJS is a popular client side JavaScript validation library. It is configured using specific HTML markup in the forms.
This library will generate these tags from your WTForms validators.
## Sample
Check out the sample here. You can also run the sample yourself by calling `run.py` if you have flask installed.
## What is supported?
The following WTForms validators are supported:
* E-Mail Address
* Matching values
* IP4 Address
* Length of string
* Required field
* Regexp (see limitations)
* URL
* AnyOf
The NoneOf validator is not supported because this functionality is not supported by ParsleyJS.
The following WTForms widgets are supported:
* TextInput
* Select
* CheckboxInput
Radio Buttons are not supported.
## How to use it?
The easiest way is to simply use the supplied field classes in your form definitions. These subclass the default WTForms field classes and should behave identically to them apart from the extra tags. So instead of importing from wtforms you say for example:
`from wtformsparsleyjs import IntegerField`
If you have your own Field classes, you can use the provided input widgets and pass them into your classes by overwriting the constructor of the underlying default WTForms base field class.
You can also directly use the `ParsleyInputMixin` on your own widget classes or you can directly call the function `parsley_kwargs` which will generate the needed tags for your field (which you can then pass in as kwargs to the constructor of the input widget).
## Limitations
Note that the regex validation relies on the regex pattern being compatible with both ECMA script and Python. The regex is not converted in any way.
Notably the ECMA script default behaviour matches the behaviour of [Python's search, not match](http://docs.python.org/2/library/re.html#search-vs-match).
It's possible to simply supply your own `data-regexp` keyword to the field to explicitly provide the ECMA script regex.
See [the flask documentation on this](http://flask.pocoo.org/docs/patterns/wtforms/#forms-in-templates). If you do this the library will not touch your custom regex.
Note that the WTForms URL vaidator probably is a bit more liberal than the parsley one. Do check if the behaviour suits your needs.
## Dependencies
Of course ParsleyJS and WTForms are required. ParsleyJS in turn requires jQuery.
The `AnyOf` validator requires parsleys extra validators which are distributed in a seperate file.
The sample uses the [Flask web framework](http://flask.pocoo.org/docs/) and [Twitter Bootstrap](http://twitter.github.io/bootstrap/).
## What else?
If you have any improvements or feedback please let me know or send me a pull request.
The license is MIT.
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Flask==0.9
Jinja2==2.7
WTForms==1.0.4
Werkzeug==0.8.3
gunicorn==0.17.4
Flask>=0.9
Jinja2>=2.7
WTForms>=1.0.4
Werkzeug>=0.8.3
gunicorn>=0.17.4
+1 -1
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@@ -1,4 +1,4 @@
from wtformsparsleyjs.samples.sample import app
from wtformsparsleyjs.sample import app
if __name__ == '__main__':
app.run(debug=True)
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@@ -1,22 +1,22 @@
The MIT License (MIT)
Copyright (c) 2013, Johannes Gehrs
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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@@ -1 +1,3 @@
__author__ = 'johannes'
from core import *
+23 -17
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@@ -1,6 +1,8 @@
__author__ = 'Johannes Gehrs (jgehrs@gmail.com)'
import re, copy
import re
import copy
from wtforms.validators import Length, NumberRange, Email, EqualTo, IPAddress, \
Required, Regexp, URL, AnyOf
from wtforms import TextField
@@ -11,6 +13,7 @@ from wtforms.fields import TextField as _TextField, BooleanField as _BooleanFiel
FloatField as _FloatField, PasswordField as _PasswordField, \
SelectField as _SelectField
def parsley_kwargs(field, kwargs):
"""
Return new *kwargs* for *widget*.
@@ -48,7 +51,6 @@ def parsley_kwargs(field, kwargs):
if isinstance(vali, AnyOf):
_anyof_kwargs(new_kwargs, vali)
if not 'data_trigger' in new_kwargs:
_trigger_kwargs(new_kwargs)
if not 'data-error-message' in new_kwargs and vali.message is not None:
@@ -58,16 +60,16 @@ def parsley_kwargs(field, kwargs):
def _email_kwargs(kwargs):
kwargs[u'data-type']=u'email'
kwargs[u'data-type'] = u'email'
def _equal_to_kwargs(kwargs, vali):
kwargs[u'data-equalto']=u'#' + vali.fieldname
kwargs[u'data-equalto'] = u'#' + vali.fieldname
def _ip_address_kwargs(kwargs):
# Regexp from http://stackoverflow.com/a/4460645
kwargs[u'data-regexp']=\
kwargs[u'data-regexp'] =\
r'^\b(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?).' \
r'(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.' \
r'(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.' \
@@ -92,7 +94,8 @@ def _regexp_kwargs(kwargs, vali):
RegexObject = type(re.compile(''))
if isinstance(vali.regex, RegexObject):
regex_string = vali.regex.pattern
else: regex_string = vali.regex
else:
regex_string = vali.regex
kwargs[u'data-regexp'] = regex_string
@@ -103,12 +106,15 @@ def _url_kwargs(kwargs):
def _string_seq_delimiter(vali, kwargs):
# We normally use a comma as the delimiter - looks clean and it's parsley's default.
# If the strings for which we check contain a comma, we cannot use it as a delimiter.
delimiter = u','
default_delimiter = u','
fallback_delimiter = u';;;'
delimiter = default_delimiter
for value in vali.values:
if value.find(',') != -1:
delimiter = u';;;'
delimiter = fallback_delimiter
break
if delimiter != u',': kwargs[u'data-inlist-delimiter'] = delimiter
if delimiter != default_delimiter:
kwargs[u'data-inlist-delimiter'] = delimiter
return delimiter
@@ -118,7 +124,7 @@ def _anyof_kwargs(kwargs, vali):
def _trigger_kwargs(kwargs, trigger=u'change'):
kwargs[u'data-trigger']=trigger
kwargs[u'data-trigger'] = trigger
def _message_kwargs(kwargs, message):
@@ -151,34 +157,34 @@ class Select(_Select):
class TextField(_TextField):
def __init__(self, *args, **kwargs):
super(TextField, self).__init__(widget = TextInput(), *args, **kwargs)
super(TextField, self).__init__(widget=TextInput(), *args, **kwargs)
class IntegerField(_IntegerField):
def __init__(self, *args, **kwargs):
super(IntegerField, self).__init__(widget = TextInput(), *args, **kwargs)
super(IntegerField, self).__init__(widget=TextInput(), *args, **kwargs)
class BooleanField(_BooleanField):
def __init__(self, *args, **kwargs):
super(BooleanField, self).__init__(widget = CheckboxInput(), *args, **kwargs)
super(BooleanField, self).__init__(widget=CheckboxInput(), *args, **kwargs)
class DecimalField(_DecimalField):
def __init__(self, *args, **kwargs):
super(DecimalField, self).__init__(widget = TextInput(), *args, **kwargs)
super(DecimalField, self).__init__(widget=TextInput(), *args, **kwargs)
class FloatField(_FloatField):
def __init__(self, *args, **kwargs):
super(FloatField, self).__init__(widget = TextInput(), *args, **kwargs)
super(FloatField, self).__init__(widget=TextInput(), *args, **kwargs)
class PasswordField(_PasswordField):
def __init__(self, *args, **kwargs):
super(PasswordField, self).__init__(widget = PasswordInput(), *args, **kwargs)
super(PasswordField, self).__init__(widget=PasswordInput(), *args, **kwargs)
class SelectField(_SelectField):
def __init__(self, *args, **kwargs):
super(SelectField, self).__init__(widget = Select(), *args, **kwargs)
super(SelectField, self).__init__(widget=Select(), *args, **kwargs)
@@ -1 +1,3 @@
__author__ = 'johannes'
from sample import *
@@ -2,7 +2,7 @@ __author__ = 'Johannes Gehrs (jgehrs@gmail.com)'
from flask import Flask, render_template, redirect, url_for, request, flash
from wtforms import Form, validators
from wtformsparsleyjs.core import IntegerField, BooleanField, SelectField, TextField
from wtformsparsleyjs import IntegerField, BooleanField, SelectField, TextField
app = Flask(__name__)
@@ -42,11 +42,11 @@ class ParsleyTestForm(Form):
validators.Required(
message='Sorry, you have to make a choice.')
], choices=[('', 'Please select an option'), ('cpp', 'C++'), ('py', 'Python'),
('text', 'Plain Text')])
('text', 'Plain Text')
], default='py')
required_checkbox = BooleanField('Required Checkbox', [
validators.Required(message='Sorry, you need to accept this.')
])
], default=True)
regexp = TextField('Regex-Matched Hex Color-Code', [
validators.Regexp(message='Not a proper color code, sorry.',
regex=r'^#[A-Fa-f0-9]{6}$')