[Webware-discuss] Example howto use FormEncode with Webware-1.1b1
I am trying to find a very basic example using FormEncode with Webware-1.1b1. Any help or advice is very welcome. Regards Georg Balmer -- ___ Webware-discuss mailing list Webware-discuss@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/webware-discuss
[Webware-discuss] Example howto use FormEncode with Webware-1.1b1
I am trying to find a very basic example using FormEncode with Webware-1.1b1. The orginal WebwareExample by Ian Bicking is working after eliminating HTMLForm but some german error messages produce a UnicodeEncodeError in HTTPResponse. The comment in HTTPResponse.py (around Line 260) let's me assume that something needs to be done in my example code but I don't know exactly what. Any help or advice is very welcome. Regards Georg Balmer -- ___ Webware-discuss mailing list Webware-discuss@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/webware-discuss
Re: [Webware-discuss] Example howto use FormEncode with Webware-1.1b1
Am 10.05.2010 12:57 schrieb Georg Balmer: > The orginal WebwareExample by Ian Bicking is working after eliminating > HTMLForm > but some german error messages produce a UnicodeEncodeError in HTTPResponse. Sorry, I cannot find this example you're referring to, where is it? Generally, you must output ordinary (encoded) strings in Webware, not unicode. It's best to always use the same encoding (e.g. latin-1 or utf-8) and work with encoded strings everywhere inside Webware. -- Christoph -- ___ Webware-discuss mailing list Webware-discuss@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/webware-discuss
Re: [Webware-discuss] Example howto use FormEncode with Webware-1.1b1
Thank you for your reply
My test setup is:
. fedora 11
. python 2.6
. formencode in site-packages/formencode
(had to add the i18n directory) from [2]
. webware-1.1.b1
. using utf-8
I got the example from a direct download from formencode.org:
. [2] svn co http://svn.colorstudy.com/FormEncode/trunk FormEncode
(examples directory: WebwareExamples/index.py)
. you may switch language for formencode in awake
. some lines in "save" are experimental
My aim is to have a basic example I can use for my next steps.
Regards
Georg
Am 10.05.2010 23:10, schrieb Christoph Zwerschke:
Am 10.05.2010 12:57 schrieb Georg Balmer:
The orginal WebwareExample by Ian Bicking is working after eliminating HTMLForm
but some german error messages produce a UnicodeEncodeError in HTTPResponse.
Sorry, I cannot find this example you're referring to, where is it?
Generally, you must output ordinary (encoded) strings in Webware, not
unicode. It's best to always use the same encoding (e.g. latin-1 or
utf-8) and work with encoded strings everywhere inside Webware.
-- Christoph
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#from formencode.htmlform import HTMLForm
import formencode
from formencode import htmlfill
from formencode import validators, compound, schema
from WebKit.Page import Page
page_style = """
Tell me about yourself
.error {background-color: #ff}
.error-message {border: 2px solid #f00}
Tell me about yourself
A FormEncode example
%s
"""
form_template = '''
Your name:
Your age:
Your favorite color:
Red
Blue
Black
Green
'''
class FormSchema(schema.Schema):
name = validators.String(not_empty=True)
age = validators.Int(min=13, max=99)
color = compound.All(validators.Set(),
validators.OneOf(['red', 'blue', 'black', 'green']))
filter_extra_fields = True
allow_extra_fields = True
class index(Page):
def awake(self, trans):
print ">>> DEBUG SimpleFlow: awake"
Page.awake(self, trans)
print formencode.api.get_localedir()
formencode.api.set_stdtranslation(
domain="FormEncode",
languages=["en"],
)
try:
msgs = formencode.api.Validator.all_messages()
print msgs
for msg in msgs:
print msg
except:
print ">>> DEBUG SimpleFlow: awake: no messages"
fields = self.request().fields()
try:
self.rendered_form
except:
print ">>> DEBUG SimpleFlow: awake: rendered_form = NONE"
defaults = {}
errors = {}
self.rendered_form = None
def actions(self):
print ">>> DEBUG SimpleFlow: actions"
print Page.actions(self)
fields = self.request().fields()
for field in fields:
print "%s: %s" % (field, fields[field])
return ['save']
def save(self):
print ">>> DEBUG SimpleFlow: save"
ok = None
fields = self.request().fields()
try:
ok = FormSchema.to_python(fields)
print ">>> DEBUG SimpleFlow: save: OK"
except validators.Invalid, e:
print ">>> DEBUG SimpleFlow: save: e:", type(e)
errors = e.error_dict
eKeys = errors.keys()
for k in eKeys:
print "%s: %s" % (k, type(errors[k]))
print ">>> DEBUG SimpleFlow: save: e.error_dict:", errors
defaults = fields # Hinweis
self.rendered_form = htmlfill.render(form_template, defaults, errors)
self.write(page_style % self.rendered_form)
def writeContent(self):
print ">>> DEBUG SimpleFlow: writeContent"
if self.rendered_form is None:
print ">>> DEBUG SimpleFlow: writeContent: rendered_form is NONE"
defaults = {}
errors = {}
self.rendered_form = htmlfill.render(form_template, defaults, errors)
self.write(page_style % self.rendered_form)
def getDefaults(self):
return dict(
age='enter your age',
color=['blue'])
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Re: [Webware-discuss] Example howto use FormEncode with Webware-1.1b1
Am 11.05.2010 08:53, schrieb Georg Balmer:
> I got the example from a direct download from formencode.org:
> . [2] svn co http://svn.colorstudy.com/FormEncode/trunk FormEncode
> (examples directory: WebwareExamples/index.py)
Thanks, I was not aware of that example. Seems it was actually written
for Paste WebKit (http://pythonpaste.org/webkit/).
As you noticed it uses htmlform which is deprecated; you must use
htmlfill directly. You must also add a name="color" attribute to the
checkboxes to make these work.
It seems your problem is that the formencode errors are now unicode, so
you must encode these. Here is how I got it working with the current
Webware (I simplified it a bit by not using Webware actions):
class form(Page):
schema = FormSchema()
def awake(self, trans):
Page.awake(self, trans)
try:
fields = self.request().fields()
if 'name' in fields:
fields = self.schema.to_python(fields, self)
else:
fields = self.getDefaults()
except formencode.Invalid, e:
errors = dict((k, v.encode('utf-8'))
for k, v in e.unpack_errors().iteritems())
else:
errors = None
self.rendered_form = formencode.htmlfill.render(form_template,
defaults=fields, errors=errors)
def writeContent(self):
self.write(page_style % self.rendered_form)
def getDefaults(self):
return dict(age='enter your age', color=['blue'])
Let me know how it works for you.
Btw, instead of using a schema, you could also embed the validation info
in the form template and use the SchemaBuilder to parse these.
-- Christoph
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Re: [Webware-discuss] Example howto use FormEncode with Webware-1.1b1
Thank your for your excellent help.
The basic example works.
Next step is your SchemaBuilder suggestion.
Regards
Georg
-
Am 11.05.2010 11:44, schrieb Christoph Zwerschke:
> Am 11.05.2010 08:53, schrieb Georg Balmer:
>> I got the example from a direct download from formencode.org:
>> . [2] svn co http://svn.colorstudy.com/FormEncode/trunk FormEncode
>> (examples directory: WebwareExamples/index.py)
>
> Thanks, I was not aware of that example. Seems it was actually written
> for Paste WebKit (http://pythonpaste.org/webkit/).
>
> As you noticed it uses htmlform which is deprecated; you must use
> htmlfill directly. You must also add a name="color" attribute to the
> checkboxes to make these work.
>
> It seems your problem is that the formencode errors are now unicode, so
> you must encode these. Here is how I got it working with the current
> Webware (I simplified it a bit by not using Webware actions):
>
>
> class form(Page):
>
> schema = FormSchema()
>
> def awake(self, trans):
> Page.awake(self, trans)
> try:
> fields = self.request().fields()
> if 'name' in fields:
> fields = self.schema.to_python(fields, self)
> else:
> fields = self.getDefaults()
> except formencode.Invalid, e:
> errors = dict((k, v.encode('utf-8'))
> for k, v in e.unpack_errors().iteritems())
> else:
> errors = None
> self.rendered_form = formencode.htmlfill.render(form_template,
> defaults=fields, errors=errors)
>
> def writeContent(self):
> self.write(page_style % self.rendered_form)
>
> def getDefaults(self):
> return dict(age='enter your age', color=['blue'])
>
>
> Let me know how it works for you.
>
> Btw, instead of using a schema, you could also embed the validation info
> in the form template and use the SchemaBuilder to parse these.
>
> -- Christoph
>
> --
>
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>
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Re: [Webware-discuss] Example howto use FormEncode with Webware-1.1b1
Am 11.05.2010 13:33 schrieb Georg Balmer: > Next step is your SchemaBuilder suggestion. Just tried it, but it doesn't seem to be very useful since you cannot specify and validator arguments, and I had to fix some things first (see http://bitbucket.org/cito/formencode/changeset/e39881f76131). I've added the examples to our Wiki now: http://wiki.w4py.org/webwareandformencode.html -- Christoph -- ___ Webware-discuss mailing list Webware-discuss@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/webware-discuss
Re: [Webware-discuss] Example howto use FormEncode with Webware-1.1b1
Right now I have questions like: What's needed to get the basic example in an application? - . elaborate examples "Fields OK-exit" . References to helpful documentation like .. The Definitve Guide to Pylons (James Gardner): Chapter 6 ... Will be nice to have everything in one place on the wiki. Regards Georg - Am 11.05.2010 23:09, schrieb Christoph Zwerschke: > Am 11.05.2010 13:33 schrieb Georg Balmer: > > Next step is your SchemaBuilder suggestion. > > Just tried it, but it doesn't seem to be very useful since you cannot > specify and validator arguments, and I had to fix some things first (see > http://bitbucket.org/cito/formencode/changeset/e39881f76131). > > I've added the examples to our Wiki now: > http://wiki.w4py.org/webwareandformencode.html > > -- Christoph > > -- > > ___ > Webware-discuss mailing list > Webware-discuss@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/webware-discuss > -- ___ Webware-discuss mailing list Webware-discuss@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/webware-discuss
Re: [Webware-discuss] Example howto use FormEncode with Webware-1.1b1
Am 12.05.2010 10:00 schrieb Georg Balmer: > . elaborate examples "Fields OK-exit" That's simple, just add names to your submit buttons and check them with the hasField() method. Actually I'm not using FormEncode with Webware, so I cannot contribute any best practices to the Wiki, but the Wiki is editable by anybody. It would be nice if we could add a standard form validation and generation plugin to Webware, though. There had been some attempts in the past with FunFormKit and FormKit4Python, but nothing ever got integrated and they are not maintained any more. -- Christoph -- ___ Webware-discuss mailing list Webware-discuss@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/webware-discuss
Re: [Webware-discuss] Example howto use FormEncode with Webware-1.1b1
What do I want? (random work in progress) [1] Development path to port Webware applications using FunFormKit to Webware-1.1 and FormEncode + WebHelpers + ... with existing and new tools. [2] Development path for new Webware(?) applications with existing and new tools. [3] The target platform (at the time) for these applications is: . Linux CentOS . Apache . Python 2.4 . MySQL 5.0 [4] Documentation using Sphinx. To do [1] in a form that can be published on the Webware Wiki somebody must proofread my code and text. I am not a writer nor a very talented programmer. In doing [1] I gain the experience and knowledge to do [2]. My next steps are: . Using Webhelpers to generate the forms. .. first steps .. input specifications (repository in DB) Regards Georg --- Am 13.05.2010 00:33, schrieb Christoph Zwerschke: > > Actually I'm not using FormEncode with Webware, so I cannot contribute > any best practices to the Wiki, but the Wiki is editable by anybody. > > It would be nice if we could add a standard form validation and > generation plugin to Webware, though. There had been some attempts in > the past with FunFormKit and FormKit4Python, but nothing ever got > integrated and they are not maintained any more. > > -- Christoph > > -- > > ___ > Webware-discuss mailing list > Webware-discuss@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/webware-discuss > -- ___ Webware-discuss mailing list Webware-discuss@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/webware-discuss
Re: [Webware-discuss] Example howto use FormEncode with Webware-1.1b1
Am 13.05.2010 07:42 schrieb Georg Balmer: > What do I want? (random work in progress) Sounds good. Sphinx is already on our "future" list: http://wiki.w4py.org/futurework.html You can use the Wiki to add recipes and tutorials as drafts; they don't need to be polished. The Wiki and the existing docs can then be used as a starting basis for creating the Sphinx docs (which should be tested and proof-read). Anything that has become obsolete or has been taken over to the Sphinx docs can then be removed from the Wiki. -- Christoph -- ___ Webware-discuss mailing list Webware-discuss@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/webware-discuss
Re: [Webware-discuss] Example howto use FormEncode with Webware-1.1b1
OK I just registered on the wiki an opened my first page. = Formgen - First steps = I tried to find a way how I could work offline on my Sphinx document an then upload the document to the wiki, but I didn't succeed. Do you have a hint for a wiki dummy? Regards Georg - Am 13.05.2010 14:05, schrieb Christoph Zwerschke: > Am 13.05.2010 07:42 schrieb Georg Balmer: > > What do I want? (random work in progress) > > Sounds good. Sphinx is already on our "future" list: > http://wiki.w4py.org/futurework.html > > You can use the Wiki to add recipes and tutorials as drafts; they don't > need to be polished. The Wiki and the existing docs can then be used as > a starting basis for creating the Sphinx docs (which should be tested > and proof-read). Anything that has become obsolete or has been taken > over to the Sphinx docs can then be removed from the Wiki. > > -- Christoph > > -- > > ___ > Webware-discuss mailing list > Webware-discuss@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/webware-discuss > -- ___ Webware-discuss mailing list Webware-discuss@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/webware-discuss
Re: [Webware-discuss] Example howto use FormEncode with Webware-1.1b1
Am 13.05.2010 15:39 schrieb Georg Balmer: > I tried to find a way how I could work offline on my Sphinx document > an then upload the document to the wiki, but I didn't succeed. > Do you have a hint for a wiki dummy? Since both Sphinx and Wiki use ReST format, you can just click on "Edit -> Edit this page" and then post your content using cut & paste. Btw, I just fixed the original Webware example in FormEncode which was broken because of the missing HTMLForms and had some more small problems (e.g. the Unicode issue you reported). It works nicely now with both Webware 1.1 and Paste WebKit. -- Christoph -- ___ Webware-discuss mailing list Webware-discuss@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/webware-discuss
Re: [Webware-discuss] Example howto use FormEncode with Webware-1.1b1
I am all set now for working on the wiki. Thanks for your tip. The revamped FormEncode example shows me the correct schema specifications for the color checkboxes. The usage for "preAction" and "postAction" is new to me. Next I try generate the code for the "form_template" using "WebHelpers". HTMLgeneration is mentioned in the "future" list. Has this something to do with what I try to do with Webhelpers? Regards Georg --- Am 13.05.2010 17:03, schrieb Christoph Zwerschke: > Am 13.05.2010 15:39 schrieb Georg Balmer: > > I tried to find a way how I could work offline on my Sphinx document > > an then upload the document to the wiki, but I didn't succeed. > > Do you have a hint for a wiki dummy? > > Since both Sphinx and Wiki use ReST format, you can just click on "Edit > -> Edit this page" and then post your content using cut& paste. > > Btw, I just fixed the original Webware example in FormEncode which was > broken because of the missing HTMLForms and had some more small problems > (e.g. the Unicode issue you reported). It works nicely now with both > Webware 1.1 and Paste WebKit. > > -- Christoph > > -- > > ___ > Webware-discuss mailing list > Webware-discuss@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/webware-discuss > -- ___ Webware-discuss mailing list Webware-discuss@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/webware-discuss
Re: [Webware-discuss] Example howto use FormEncode with Webware-1.1b1
Am 13.05.2010 18:14 schrieb Georg Balmer: > Next I try generate the code for the "form_template" using "WebHelpers". > HTMLgeneration is mentioned in the "future" list. > Has this something to do with what I try to do with Webhelpers? Yes, webhelpers.html seems to do these things. Maybe it's good enough. -- Christoph -- ___ Webware-discuss mailing list Webware-discuss@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/webware-discuss
Re: [Webware-discuss] Example howto use FormEncode with Webware-1.1b1 (2)
Thank you for your reply
My test setup is:
. fedora 11
. python 2.6
. formencode in site-packages/formencode
(had to add the i18n directory) from [2]
. webware-1.1.b1
. using utf-8
I got the example from a direct download from formencode.org:
. [2] svn co http://svn.colorstudy.com/FormEncode/trunk FormEncode
(examples directory: WebwareExamples/index.py)
. you may switch language for formencode in awake
. some lines in "save" are experimental.
I made some changes following your suggestions.
The german version doesn't break HTTPResponse anymore,
but I still don't understand the mechanics of error catching and so on.
My aim is to have a basic example I can use for my next steps.
Regards
Georg
Am 10.05.2010 23:10, schrieb Christoph Zwerschke:
Am 10.05.2010 12:57 schrieb Georg Balmer:
The orginal WebwareExample by Ian Bicking is working after eliminating HTMLForm
but some german error messages produce a UnicodeEncodeError in HTTPResponse.
Sorry, I cannot find this example you're referring to, where is it?
Generally, you must output ordinary (encoded) strings in Webware, not
unicode. It's best to always use the same encoding (e.g. latin-1 or
utf-8) and work with encoded strings everywhere inside Webware.
-- Christoph
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#from formencode.htmlform import HTMLForm
import formencode
from formencode import htmlfill
from formencode import validators, compound, schema
from WebKit.Page import Page
page_style = """
Tell me about yourself
.error {background-color: #ff}
.error-message {border: 2px solid #f00}
Tell me about yourself
A FormEncode example
%s
"""
form_template = '''
Your name:
Your age:
Your favorite color:
Red
Blue
Black
Green
'''
class FormSchema(schema.Schema):
name = validators.String(not_empty=True)
age = validators.Int(min=13, max=99)
color = compound.All(
validators.Set(),
validators.OneOf(['red', 'blue', 'black', 'green']),
)
filter_extra_fields = True
allow_extra_fields = True
class index(Page):
def awake(self, trans):
print ">>> DEBUG SimpleFlow: awake"
Page.awake(self, trans)
print formencode.api.get_localedir()
formencode.api.set_stdtranslation(
domain="FormEncode",
languages=["de"],
)
fields = self.request().fields()
try:
self.rendered_form
except:
print ">>> DEBUG SimpleFlow: awake: rendered_form = NONE"
defaults = {}
errors = {}
self.rendered_form = None
def actions(self):
print ">>> DEBUG SimpleFlow: actions"
print Page.actions(self)
fields = self.request().fields()
for field in fields:
print "%s: %s" % (field, fields[field])
return ['save']
def save(self):
print ">>> DEBUG SimpleFlow: save"
ok = None
fields = self.request().fields()
try:
ok = FormSchema.to_python(fields)
print ">>> DEBUG SimpleFlow: save: OK"
except validators.Invalid, e:
print ">>> DEBUG SimpleFlow: save: e:", type(e)
if isinstance(e, validators.Invalid):
print ">>> Invalid instance"
errors = e.error_dict
eKeys = errors.keys()
errDict = {}
for k in eKeys:
print "%s: %s" % (k, type(errors[k]))
if isinstance(errors[k], validators.Invalid):
print ">>> Invalid instance"
msg = errors[k].msg
errMsg = msg.encode('utf-8', 'replace')
errDict[k] = errMsg
print ">>> DEBUG SimpleFlow: save: e.error_dict:", errors
defaults = fields # Hinweis
self.rendered_form = htmlfill.render(form_template, defaults, errDict)
self.write(page_style % self.rendered_form)
self.defaults = {}
self.rendered_form = None
def writeContent(self):
print ">>> DEBUG SimpleFlow: writeContent"
if self.rendered_form is None:
print ">>> DEBUG SimpleFlow: writeContent: rendered_form is NONE"
defaults = {}
errors = {}
self.rendered_form = htmlfill.render(form_template, defaults, errors)
self.write(page_style % self.rendered_form)
def getDefaults(self):
return dict(
age='enter your age',
color=['blue'])
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