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package ExtJS::AutoForm::Moose; |
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use warnings; |
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use strict; |
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use Moose::Role; |
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use JSON::Any qw(); |
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use ExtJS::AutoForm::Moose::Util; |
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=head1 NAME |
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ExtJS::AutoForm::Moose - Moose role for ExtJS form autogeneration |
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=head1 VERSION |
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Version 0.01 |
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=cut |
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our $VERSION = "0.01"; |
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=head1 SYNOPSIS |
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B<WARNING:> This module is mostly on it's bare bones, and still under heavy development. This means |
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it is subject to all kinds of refactoring, renaming, incompatible API changes, not to mention the |
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bugs or lack of support for really nice Moose features and extensions (like L<MongoDBx::Class>). |
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See L</DESCRIPTION> and L</TODO> for more details. |
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On the class you want to generate an ExtJS form for: |
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package MyApp::Model::MyEntity; |
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use Moose; |
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extends 'MyApp::Model::MyParentEntity'; |
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with 'ExtJS::AutoForm::Moose'; |
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has 'some_attribute' => { is => "rw", isa => "Str" }; |
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has 'some_other' => { is => "ro", isa => "Num" }; |
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Then, somewhere else on your code: |
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# Simple usage on an object instance |
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$entity->extjs_fields; |
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$entity->extjs_fields_json; |
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$entity->extjs_formpanel; |
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$entity->extjs_formpanel_json; |
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# Static usage |
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MyApp::Model::MyParentEntity->extjs_fields; |
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MyApp::Model::MyParentEntity->extjs_formpanel; |
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# Use options to control generation |
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$entity->extjs_form( hierarchy => 1, strip => "MyApp::Model::", cleanup => "cute" ); |
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=cut |
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=head1 DESCRIPTION |
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This moose role adds a couple of methods to any Moose class that use introspection to try to generate |
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an array of ExtJS form field descriptions or a formpanel description. If you do not yet know of ExtJS, |
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you can visit it's product page here: L<http://www.sencha.com/products/extjs>. |
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Once a class implements this role, you can call I<extjs_*> methods on an object instance or statically. |
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=head2 Supported moose types |
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So far, just a few base attribute types are supported, namely: B<Str>, B<Num>, B<Int>, B<Bool>, and B<enums>. |
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Any other field will inherit the extjs template definition from the common antecessor B<Any>, which creates a |
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DisplayField control showing an "Unsupported type" message. |
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Anyway, you can define custom templates for any moose types using L<ExtJS::AutoForm::Moose::Types>, |
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which provides a syntax curry very similar to the one used to declare types or attributes. |
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=head2 How it works |
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L<ExtJS::AutoForm::Moose> basically gets the associated Moose::Meta::Class and uses |
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introspection to recursively find the entity attributes. |
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For each attribute, it does a few simple checks on the attribute type to find the matching |
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ExtJS control. Such search will recursively check parent types to provide a default control, |
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so that if you create an I<Str> subtype and do not declare a way to reflect that into an ExtJS |
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control, the default for I<Str> will be used instead. |
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When an association is found, the definition is loaded, and a few common config options are |
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set (unless they have been previously defined on the provided template): |
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=over 4 |
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=item - fieldLabel |
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Set to the attribute name, as returned by the cleanup callback (see autoform options) |
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=item - readOnly |
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Set to true for "ro" declared attributes |
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=item - name |
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Set to the attribute name (unparsed) |
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=back |
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=head3 Attribute values |
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Attribute values are a bit special, since the default behaviour changes when the form is generated |
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through a static call to ext_js or as a method call. |
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On the first case, this module will try to fetch the default value for that attribute. There is a |
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caveat, though, since default values can be provided as callbacks and a static call has no object |
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to pass to that callback. This means it will probably crash, but so far, this behaviour is left |
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undefined. |
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When called as a method, though, the actual attribute value of that instance will be used. |
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=head1 METHODS |
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118
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=over |
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120
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=item extjs_fields ( I<options> ) |
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Generate fields structure for a given class. |
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This method can be both invoked on an object or directly, passing a valid moose classname as the first parameter. |
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Available options: |
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=over |
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=item hierarchy |
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When set to a true value, this flag will cause attributes to be grouped in ExtJS fieldgroups using the class or role names that declared them. |
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=item strip |
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Used together with I<hierarchy>, will strip off a given string from class names. See L</SYNOPSIS>. |
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=item classname_cleanup |
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Used together with I<hierarchy>, allows to format classnames using a callback. Specifying "cute" will C<s#::# #>. |
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142
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=item attribute_cleanup |
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144
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Allows to format attribute using a callback. Specifying "cute" will C<s#_# #>. |
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146
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=item no_readonly |
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148
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Do not set readOnly config parameters on fields. |
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150
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=back |
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152
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=item extjs_fields_json ( I<options> ) |
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154
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This method does exactly the same thing as I<extjs_fields>, but returns the output encoded as JSON using L<JSON::Any>. |
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156
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=item extjs_formpanel ( I<options> ) |
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158
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Generate a formpanel containing the reflection for a given object instance or class. |
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160
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All parameters are passed directly to extjs_fields, so it's usage is identical. |
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162
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=item extjs_formpanel_json ( I<options> ) |
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164
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This method does exactly the same thing as I<extjs_formpanel>, but returns the output encoded as JSON using L<JSON::Any>. |
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166
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=back |
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168
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=cut |
169
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170
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sub extjs_fields { |
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my $self = shift; |
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my $meta = Class::MOP::Class->initialize(ref($self) || $self); |
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my $options = {@_}; |
174
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175
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return ExtJS::AutoForm::Moose::Util::_recursive_reflect( $meta, ref($self) ? $self : undef, $options ); |
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} |
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178
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sub extjs_fields_json |
179
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{ return JSON::Any->objToJson([shift->extjs_fields(@_)]); } |
180
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181
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sub extjs_formpanel { |
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my $self = shift; |
183
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my @fields = $self->extjs_fields(@_); |
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185
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return { |
186
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xtype => "form", |
187
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items => [@fields], |
188
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}; |
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} |
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191
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sub extjs_formpanel_json |
192
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{ return JSON::Any->objToJson([shift->extjs_formpanel(@_)]); } |
193
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194
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=head1 TODO |
195
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196
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There are still a lot of features to implement and a few dirty hacks to fix before this module is actually useful. |
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198
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This is a list of random ideas to be considered for future versions: |
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200
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=over |
201
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202
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=item Support for Moose class-typed attributes |
203
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204
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This must be thoroughly analized to get to a simple and flexible solution |
205
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206
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=item Support array and hash parametrized types |
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208
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I think there must be a pretty smart way to handle this |
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210
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=item Support MongoDBx::Class attributes |
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212
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This one is even more interesting, and includes referenced and embedded documents. |
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214
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=back |
215
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216
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=cut |
217
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218
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=head1 AUTHOR |
219
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220
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Quim Rovira, C<< met at cpan.org >> |
221
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222
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=head1 BUGS |
223
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224
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Please report any bugs or feature requests to C<bug-moosex-extjs-reflection at rt.cpan.org>, or through |
225
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the web interface at L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=ExtJS-AutoForm-Moose>. I will be notified, and then you'll |
226
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automatically be notified of progress on your bug as I make changes. |
227
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228
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=head1 SUPPORT |
229
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230
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You can find documentation for this module with the perldoc command. |
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232
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perldoc ExtJS::AutoForm::Moose |
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You can also look for information at: |
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=over 4 |
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=item * RT: CPAN's request tracker |
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L<http://rt.cpan.org/NoAuth/Bugs.html?Dist=ExtJS-AutoForm-Moose> |
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=item * AnnoCPAN: Annotated CPAN documentation |
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L<http://annocpan.org/dist/ExtJS-AutoForm-Moose> |
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=item * CPAN Ratings |
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L<http://cpanratings.perl.org/d/ExtJS-AutoForm-Moose> |
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=item * Search CPAN |
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L<http://search.cpan.org/dist/ExtJS-AutoForm-Moose/> |
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=back |
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=head1 LICENSE AND COPYRIGHT |
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Copyright 2011 Quim Rovira. |
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This program is free software; you can redistribute it and/or modify it |
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under the terms of either: the GNU General Public License as published |
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by the Free Software Foundation; or the Artistic License. |
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See http://dev.perl.org/licenses/ for more information. |
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ExtJS trademarks are property of Sencha Labs L<http://www.sencha.com> |
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=cut |
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1; # End of ExtJS::AutoForm::Moose |