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1 | =head1 NAME |
2 | |
3 | Catalyst::Upgrading - Instructions for upgrading to the latest Catalyst |
4 | |
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5 | =head1 Upgrading to Catalyst 5.9 |
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6 | |
7 | The major change is that L<Plack> now replaces most of the subclasses of |
8 | L<Catalyst::Engine>. If you are using one of the standard subclasses of |
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9 | L<Catalyst::Engine> this should be a straightforward upgrade for you. It was |
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10 | a design goal for this release to be as backwardly compatible as possible. |
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11 | However since L<Plack> is different from L<Catalyst::Engine> it is possible |
12 | that edge case differences exist. Therefore we recommend care be taken with |
13 | this upgrade and that testing should be greater than would be the case with a |
14 | minor point update. |
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15 | |
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16 | It is highly recommended that you become familiar with the L<Plack> ecosystem |
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17 | and documentation. Being able to take advantage of L<Plack> development and |
18 | middleware is a major bonus to this upgrade. Documentation about how to |
19 | take advantage of L<Plack::Middleware> by writing your own C<< .psgi >> file |
20 | is contained in L<Catalyst::PSGI>. |
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21 | |
22 | If you have created a custom subclass of L<Catalyst:Engine> you will need to |
23 | convert it to be a subclass of L<Plack::Handler>. |
24 | |
25 | If you are using the L<Plack> engine, L<Catalyst::Engine::PSGI>, this new |
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26 | release supersedes that code. |
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27 | |
28 | If you are using a subclass of L<Catalyst::Engine> that is aimed at nonstandard |
29 | or internal / testing uses, such as L<Catalyst::Engine::Embeddable> you should |
30 | still be able to continue using that engine. |
31 | |
32 | Advice for specific subclasses of L<Catalyst::Engine> follows: |
33 | |
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34 | =head2 Upgrading the FastCGI Engine |
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35 | |
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36 | No upgrade needed if your myapp_fastcgi.pl script is already upgraded |
37 | enough to use L<Catalyst::Script::FastCGI>. |
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38 | |
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39 | =head2 Upgrading the mod_perl / Apache Engines |
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40 | |
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41 | The engines that are build upon the various iterations of mod_perl, |
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42 | L<Catalyst::Engine::Apache::MP13> (for mod_perl 1, and Apache 1.x) and |
43 | L<Catalyst::Engine::Apache2::MP20> (for mod_perl 2, and Apache 2.x) |
44 | should be seamless upgrades and will work using using L<Plack::Handler::Apache1> |
45 | or L<Plack::Handler::Apache2> as required. |
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46 | |
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47 | L<Catalyst::Engine::Apache2::MP19>, is however no longer supported, as Plack |
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48 | does not support mod_perl version 1.99. This is unlikely to be a problem |
49 | for anyone, as 1.99 was a brief beta-test release for mod_perl 2, and any users |
50 | are encouraged to upgrade to a supported release of Apache 2 and mod_perl 2. |
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51 | |
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52 | =head2 Upgrading the HTTP Engine |
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53 | |
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54 | The default development server that comes with the L<Catalyst> distribution |
55 | should continue to work as expected with no changes as long as your C<myapp_server> |
56 | script is upgraded to use L<Catalyst::Script::HTTP>. |
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57 | |
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58 | =head2 Upgrading the CGI Engine |
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59 | |
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60 | If you were using L<Catalyst::Engine::CGI> there is no upgrade needed if your |
61 | myapp_cgi.pl script is already upgraded enough to use L<Catalyst::Script::CGI>. |
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62 | |
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63 | =head2 Upgrading the Preforking Engine |
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64 | |
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65 | If you were using L<Catalyst::Engine::HTTP::Prefork> then L<Starman> |
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66 | is automatically loaded. You should (at least) change your C<Makefile.PL> |
67 | to depend on Starman. |
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68 | |
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69 | You can regenerate your C<myapp_server.pl> script with C<catalyst.pl> |
70 | and implement a C<MyApp::Script::Server> class that looks like this: |
71 | |
72 | package MyApp::Script::Server; |
73 | use Moose; |
74 | use namespace::autoclean; |
75 | |
76 | extends 'CatalystX::Script::Server::Starman'; |
77 | |
78 | 1; |
79 | |
80 | This takes advantage of the new script system, and adds a number of options to |
81 | the standard server script as extra options are added by Starman. |
82 | |
83 | More information about these options can be seen at |
84 | L<CatalystX::Script::Server::Starman/SYNOPSIS>. |
85 | |
86 | An alternate route to implement this functionality is to write a simple .psgi |
87 | file for your application, then use the L<plackup> utility to start the |
88 | server. |
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89 | |
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90 | =head2 Upgrading the PSGI Engine |
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91 | |
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92 | If you were using L<Catalyst::Engine::PSGI> this new release supersedes this |
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93 | engine in supporting L<Plack>. By default the Engine is now always L<Plack>. |
94 | As a result, you can stop depending on L<Catalyst::Engine::PSGI> in your |
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95 | C<Makefile.PL>. |
96 | |
97 | Applications that were using L<Catalyst::Engine::PSGI> |
98 | previously should entirely continue to work in this release with no changes. |
99 | |
100 | However, if you have an C<app.psgi> script, then you no longer |
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101 | need to specify the PSGI engine. Instead, the L<Catalyst> application class |
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102 | now has a new method C<psgi_app> which returns a L<PSGI> compatible coderef |
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103 | which you can wrap in middleware of your choice. |
104 | |
105 | Catalyst will use the .psgi for your application if it is located in the C<home> |
106 | directory of the application |
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107 | |
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108 | For example, if you were using L<Catalyst::Engine::PSGI> in the past, you will |
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109 | have written (or generated) a C<script/myapp.psgi> file similar to this one: |
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110 | |
111 | use Plack::Builder; |
112 | use MyCatalytApp; |
113 | |
114 | MyCatalystApp->setup_engine('PSGI'); |
115 | |
116 | builder { |
117 | enable ... # enable your desired middleware |
118 | sub { MyCatalystApp->run(@_) }; |
119 | }; |
120 | |
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121 | Instead, you now say: |
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122 | |
123 | use Plack::Builder; |
124 | use MyCatalystApp; |
125 | |
126 | builder { |
127 | enable ... #enable your desired middleware |
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128 | MyCatalystApp->psgi_app; |
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129 | }; |
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130 | |
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131 | In the simplest case: |
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132 | |
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133 | MyCatalystApp->setup_engine('PSGI'); |
134 | my $app = sub { MyCatalystApp->run(@_) } |
135 | |
136 | becomes |
137 | |
138 | MyCatalystApp->setup_engine('PSGI'); |
139 | my $app = MyCatalystApp->psgi_app(@_); |
140 | |
141 | B<NOT>: |
142 | |
143 | my $app = sub { MyCatalystApp->psgi_app(@_) }; |
144 | # If you make ^^ this mistake, your app won't work, and will confuse the hell out of you! |
145 | |
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146 | You can now move C<< script/myapp.psgi >> to C<< myapp.psgi >> and the built-in |
147 | Catalyst scripts and your test suite will start using your .psgi file. |
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148 | |
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149 | B<NOTE:> If you rename your .psgi file without these modifications, then any tests run via |
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150 | L<Catalyst::Test> will not be compatible with the new release, and will result in |
151 | the development server starting, rather than the expected test running. |
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152 | |
153 | =head2 Engines which are known broken |
154 | |
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155 | The following engines B<DO NOT> work as of Catalyst version 5.9. The core |
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156 | team is extremely happy to work with the developers and/or users of these |
157 | engines to help them port to the new Plack/Engine system, however applications |
158 | which are currently using these engines B<WILL NOT> run without modification |
159 | to the engine code. |
160 | |
161 | =over |
162 | |
163 | =item Catalyst::Engine::Wx |
164 | |
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165 | =item Catalyst::Engine::Zeus |
166 | |
167 | =item Catalyst::Engine::JobQueue::POE |
168 | |
169 | =item Catalyst::Engine::XMPP2 |
170 | |
171 | =item Catalyst::Engine::SCGI |
172 | |
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173 | =back |
174 | |
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175 | =head2 Engines with unknown status |
176 | |
177 | The following engines have untested or unknown compatibility. Reports are |
178 | highly welcomed: |
179 | |
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180 | =over |
181 | |
182 | =item Catalyst::Engine::Mojo |
183 | |
184 | =item Catalyst::Engine::Server (Marked as Deprecated) |
185 | |
186 | =item Catalyst::Engine::HTTP::POE (Marked as Deprecated) |
187 | |
188 | =back |
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189 | |
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190 | =head2 Specifying the engine in the call to ->setup |
191 | |
192 | XXX FIXME |
193 | |
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194 | =head2 Plack functionality |
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195 | |
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196 | See L<Catalyst::PSGI>. |
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197 | |
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198 | =head2 Tests in 5.9 |
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199 | |
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200 | Tests should generally work the same in Catalyst 5.9, however there are some differences. |
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201 | |
202 | Previously, if using L<Catalyst::Test> and doing local requests (against a local server), |
203 | if the application threw an exception then this exception propagated into the test. |
204 | |
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205 | This behavior has been removed, and now a 500 response will be returned to the test. |
206 | This change unifies behavior, to make local test requests behave similarly to remote |
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207 | requests. |
208 | |
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209 | =head1 Upgrading to Catalyst 5.80 |
210 | |
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211 | Most applications and plugins should run unaltered on Catalyst 5.80. |
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212 | |
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213 | However, a lot of refactoring work has taken place, and several changes have |
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214 | been made which could cause incompatibilities. If your application or plugin |
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215 | is using deprecated code, or relying on side effects, then you could have |
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216 | issues upgrading to this release. |
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217 | |
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218 | Most issues found with pre-existing components have been easy to |
219 | solve. This document provides a complete description of behavior changes |
220 | which may cause compatibility issues, and of new Catalyst warnings which |
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221 | might be unclear. |
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222 | |
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223 | If you think you have found an upgrade-related issue which is not covered in |
224 | this document, please email the Catalyst list to discuss the problem. |
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225 | |
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226 | =head1 Moose features |
227 | |
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228 | =head2 Application class roles |
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229 | |
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230 | You can only apply method modifiers after the application's C<< ->setup >> |
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231 | method has been called. This means that modifiers will not work with methods |
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232 | run during the call to C<< ->setup >>. |
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233 | |
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234 | See L<Catalyst::Manual::ExtendingCatalyst> for more information about using |
235 | L<Moose> in your applications. |
236 | |
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237 | =head2 Controller actions in Moose roles |
238 | |
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239 | You can use L<MooseX::MethodAttributes::Role> if you want to declare actions |
240 | inside Moose roles. |
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241 | |
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242 | =head2 Using Moose in Components |
243 | |
244 | The correct way to use Moose in a component in a both forward and backwards |
245 | compatible way is: |
246 | |
247 | package TestApp::Controller::Root; |
248 | use Moose; |
249 | BEGIN { extends 'Catalyst::Component' }; # Or ::Controller, or whatever |
250 | |
251 | See L<Components which inherit from Moose::Object before Catalyst::Component>. |
252 | |
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253 | =head1 Known backwards compatibility breakages |
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254 | |
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255 | =head2 Applications in a single file |
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256 | |
257 | Applications must be in their own file, and loaded at compile time. This |
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258 | issue generally only affects the tests of CPAN distributions. Your |
259 | application will fail if you try to define an application inline in a |
260 | block, and use plugins which supply a C< new > method, then use that |
261 | application latter in tests within the same file. |
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262 | |
263 | This is due to the fact that Catalyst is inlining a new method on your |
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264 | application class allowing it to be compatible with Moose. The method |
265 | used to do this changed in 5.80004 to avoid the possibility of reporting |
266 | an 'Unknown Error' if your application failed to compile. |
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267 | |
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268 | =head2 Issues with Class::C3 |
269 | |
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270 | Catalyst 5.80 uses the L<Algorithm::C3> method dispatch order. This is |
271 | built into Perl 5.10, and comes via L<Class::C3> for Perl 5.8. This |
272 | replaces L<NEXT> with L<Class::C3::Adopt::NEXT>, forcing all components |
273 | to resolve methods using C3, rather than the unpredictable dispatch |
274 | order of L<NEXT>. |
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275 | |
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276 | This issue is characterised by your application failing to start due to an |
277 | error message about having a non-linear @ISA. |
278 | |
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279 | The Catalyst plugin most often causing this is |
280 | L<Catalyst::Plugin::Session::Store::FastMmap> - if you are using this |
281 | plugin and see issues, then please upgrade your plugins, as it has been |
282 | fixed. Note that Makefile.PL in the distribution will warn about known |
283 | incompatible components. |
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284 | |
285 | This issue can, however, be found in your own application - the only solution is |
286 | to go through each base class of the class the error was reported against, until |
287 | you identify the ones in conflict, and resolve them. |
288 | |
289 | To be able to generate a linear @ISA, the list of superclasses for each |
290 | class must be resolvable using the C3 algorithm. Unfortunately, when |
291 | superclasses are being used as mixins (to add functionality used in your class), |
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292 | and with multiple inheritance, it is easy to get this wrong. |
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293 | |
294 | Most common is the case of: |
295 | |
296 | package Component1; # Note, this is the common case |
297 | use base qw/Class::Accessor::Fast Class::Data::Inheritable/; |
298 | |
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299 | package Component2; # Accidentally saying it this way causes a failure |
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300 | use base qw/Class::Data::Inheritable Class::Accessor::Fast/; |
301 | |
302 | package GoesBang; |
303 | use base qw/Component1 Component2/; |
304 | |
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305 | Any situation like this will cause your application to fail to start. |
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306 | |
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307 | For additional documentation about this issue, and how to resolve it, see |
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308 | L<Class::C3::Adopt::NEXT>. |
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309 | |
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310 | =head2 Components which inherit from Moose::Object before Catalyst::Component |
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311 | |
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312 | Moose components which say: |
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313 | |
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314 | package TestApp::Controller::Example; |
315 | use Moose; |
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316 | extends qw/Moose::Object Catalyst::Component/; |
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317 | |
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318 | to use the constructor provided by Moose, while working (if you do some hacks |
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319 | with the C< BUILDARGS > method), will not work with Catalyst 5.80 as |
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320 | C<Catalyst::Component> inherits from C<Moose::Object>, and so C< @ISA > fails |
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321 | to linearize. |
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322 | |
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323 | The correct way to use Moose in a component in a both forward and backwards |
324 | compatible way is: |
325 | |
326 | package TestApp::Controller::Root; |
327 | use Moose; |
328 | BEGIN { extends 'Catalyst::Component' }; # Or ::Controller, or whatever |
329 | |
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330 | Note that the C< extends > declaration needs to occur in a begin block for |
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331 | L<attributes> to operate correctly. |
332 | |
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333 | This way you do not inherit directly from C<Moose::Object> |
334 | yourself. Having components which do not inherit their constructor from |
335 | C<Catalyst::Component> is B<unsupported>, and has never been recommended, |
336 | therefore you're on your own if you're using this technique. You'll need |
337 | to detect the version of Catalyst your application is running, and deal |
338 | with it appropriately. |
339 | |
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340 | You also don't get the L<Moose::Object> constructor, and therefore attribute |
341 | initialization will not work as normally expected. If you want to use Moose |
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342 | attributes, then they need to be made lazy to correctly initialize. |
343 | |
344 | Note that this only applies if your component needs to maintain component |
345 | backwards compatibility for Catalyst versions before 5.71001 - in 5.71001 |
346 | attributes work as expected, and the BUILD method is called normally |
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347 | (although BUILDARGS is not). |
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348 | |
349 | If you depend on Catalyst 5.8, then B<all> Moose features work as expected. |
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350 | |
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351 | You will also see this issue if you do the following: |
352 | |
353 | package TestApp::Controller::Example; |
354 | use Moose; |
355 | use base 'Catalyst::Controller'; |
356 | |
357 | as C< use base > appends to @ISA. |
358 | |
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359 | =head3 use Moose in MyApp |
360 | |
361 | Similar to the above, this will also fail: |
362 | |
363 | package MyApp; |
364 | use Moose; |
365 | use Catalyst qw/ |
366 | ConfigLoader |
367 | /; |
368 | __PACKAGE__->setup; |
369 | |
370 | If you need to use Moose in your application class (e.g. for method modifiers |
8f61d649 |
371 | etc.) then the correct technique is: |
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372 | |
373 | package MyApp; |
374 | use Moose; |
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375 | use Catalyst; |
376 | |
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377 | extends 'Catalyst'; |
5b6f82d2 |
378 | |
379 | __PACKAGE__->config( name => 'MyApp' ); |
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380 | __PACKAGE__->setup(qw/ |
381 | ConfigLoader |
382 | /); |
383 | |
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384 | =head2 Anonymous closures installed directly into the symbol table |
385 | |
386 | If you have any code which installs anonymous subroutine references directly |
387 | into the symbol table, you may encounter breakages. The simplest solution is |
388 | to use L<Sub::Name> to name the subroutine. Example: |
389 | |
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390 | # Original code, likely to break: |
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391 | my $full_method_name = join('::', $package_name, $method_name); |
04a48104 |
392 | *$full_method_name = sub { ... }; |
393 | |
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394 | # Fixed Code |
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395 | use Sub::Name 'subname'; |
396 | my $full_method_name = join('::',$package_name, $method_name); |
397 | *$full_method_name = subname $full_method_name, sub { ... }; |
398 | |
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399 | Additionally, you can take advantage of Catalyst's use of L<Class::MOP> and |
400 | install the closure using the appropriate metaclass. Example: |
04a48104 |
401 | |
402 | use Class::MOP; |
403 | my $metaclass = Moose::Meta::Class->initialize($package_name); |
404 | $metaclass->add_method($method_name => sub { ... }); |
405 | |
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406 | =head2 Hooking into application setup |
407 | |
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408 | To execute code during application start-up, the following snippet in MyApp.pm |
780654ad |
409 | used to work: |
410 | |
411 | sub setup { |
412 | my ($class, @args) = @_; |
413 | $class->NEXT::setup(@args); |
414 | ... # things to do after the actual setup |
415 | } |
416 | |
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417 | With Catalyst 5.80 this won't work anymore, because Catalyst no longer |
418 | uses NEXT.pm for method resolution. The functionality was only ever |
419 | originally operational as L<NEXT> remembers what methods have already |
420 | been called, and will not call them again. |
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421 | |
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422 | Using this now causes infinite recursion between MyApp::setup and |
423 | Catalyst::setup, due to other backwards compatibility issues related to how |
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424 | plugin setup works. Moose method modifiers like C<< before|after|around setup |
1a98f036 |
425 | => sub { ... }; >> also will not operate correctly on the setup method. |
780654ad |
426 | |
427 | The right way to do it is this: |
428 | |
429 | after setup_finalize => sub { |
430 | ... # things to do after the actual setup |
431 | }; |
432 | |
ade00972 |
433 | The setup_finalize hook was introduced as a way to avoid this issue. |
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434 | |
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435 | =head2 Components with a new method which returns false |
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436 | |
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437 | Previously, if you had a component which inherited from Catalyst::COMPONENT, |
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438 | but overrode the new method to return false, then your class's configuration |
8dd2f514 |
439 | would be blessed into a hash on your behalf, and this would be returned from |
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440 | the COMPONENT method. |
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441 | |
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442 | This behavior makes no sense, and so has been removed. Implementing your own |
443 | C< new > method in components is B<highly> discouraged. Instead, you should |
444 | inherit the new method from Catalyst::Component, and use Moose's BUILD |
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445 | functionality and/or Moose attributes to perform any construction work |
446 | necessary for your class. |
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447 | |
448 | =head2 __PACKAGE__->mk_accessor('meta'); |
449 | |
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450 | Won't work due to a limitation of L<Moose>. This is currently being fixed |
451 | inside Moose. |
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452 | |
453 | =head2 Class::Data::Inheritable side effects |
454 | |
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455 | Previously, writing to a class data accessor would copy the accessor method |
456 | down into your package. |
457 | |
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458 | This behavior has been removed. While the class data is still stored |
8dd2f514 |
459 | per-class, it is stored on the metaclass of the class defining the accessor. |
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460 | |
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461 | Therefore anything relying on the side effect of the accessor being copied down |
8dd2f514 |
462 | will be broken. |
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463 | |
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464 | The following test demonstrates the problem: |
8dd2f514 |
465 | |
466 | { |
467 | package BaseClass; |
468 | use base qw/Class::Data::Inheritable/; |
469 | __PACKAGE__->mk_classdata('foo'); |
470 | } |
471 | |
472 | { |
473 | package Child; |
474 | use base qw/BaseClass/; |
475 | } |
476 | |
477 | BaseClass->foo('base class'); |
478 | Child->foo('sub class'); |
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479 | |
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480 | use Test::More; |
8dd2f514 |
481 | isnt(BaseClass->can('foo'), Child->can('foo')); |
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482 | |
8f61d649 |
483 | =head2 Extending Catalyst::Request or other classes in an ad-hoc manner using mk_accessors |
7e2ec16e |
484 | |
8dd2f514 |
485 | Previously, it was possible to add additional accessors to Catalyst::Request |
486 | (or other classes) by calling the mk_accessors class method. |
7e2ec16e |
487 | |
8f61d649 |
488 | This is no longer supported - users should make a subclass of the class whose |
489 | behavior they would like to change, rather than globally polluting the |
e11cac87 |
490 | Catalyst objects. |
8be895a7 |
491 | |
10011c19 |
492 | =head2 Confused multiple inheritance with Catalyst::Component::COMPONENT |
8be895a7 |
493 | |
8f61d649 |
494 | Previously, Catalyst's COMPONENT method would delegate to the method on |
495 | the right hand side, which could then delegate back again with |
496 | NEXT. This is poor practice, and in addition, makes no sense with C3 |
497 | method dispatch order, and is therefore no longer supported. |
bcc773b9 |
498 | |
ba03ccca |
499 | If a COMPONENT method is detected in the inheritance hierarchy to the right |
bcc773b9 |
500 | hand side of Catalyst::Component::COMPONENT, then the following warning |
501 | message will be emitted: |
7e2ec16e |
502 | |
8dd2f514 |
503 | There is a COMPONENT method resolving after Catalyst::Component |
5687c7f9 |
504 | in ${next_package}. |
8dd2f514 |
505 | |
8f61d649 |
506 | The correct fix is to re-arrange your class's inheritance hierarchy so that the |
bcc773b9 |
507 | COMPONENT method you would like to inherit is the first (left-hand most) |
508 | COMPONENT method in your @ISA. |
7e2ec16e |
509 | |
c571d2c8 |
510 | =head1 WARNINGS |
511 | |
63b546b1 |
512 | =head2 Actions in your application class |
513 | |
514 | Having actions in your application class will now emit a warning at application |
e256d0e1 |
515 | startup as this is deprecated. It is highly recommended that these actions are moved |
63b546b1 |
516 | into a MyApp::Controller::Root (as demonstrated by the scaffold application |
55dd186c |
517 | generated by catalyst.pl). |
da73c6af |
518 | |
e256d0e1 |
519 | This warning, also affects tests. You should move actions in your test, |
520 | creating a myTest::Controller::Root, like the following example: |
da73c6af |
521 | |
522 | package MyTest::Controller::Root; |
95a52a01 |
523 | |
da73c6af |
524 | use strict; |
525 | use warnings; |
95a52a01 |
526 | |
da73c6af |
527 | use parent 'Catalyst::Controller'; |
95a52a01 |
528 | |
da73c6af |
529 | __PACKAGE__->config(namespace => ''); |
95a52a01 |
530 | |
da73c6af |
531 | sub action : Local { |
532 | my ( $self, $c ) = @_; |
533 | $c->do_something; |
534 | } |
95a52a01 |
535 | |
da73c6af |
536 | 1; |
63b546b1 |
537 | |
ac9279b0 |
538 | =head2 ::[MVC]:: naming scheme |
539 | |
540 | Having packages called MyApp::[MVC]::XX is deprecated and can no longer be generated |
541 | by catalyst.pl |
542 | |
543 | This is still supported, but it is recommended that you rename your application |
544 | components to Model/View/Controller. |
545 | |
546 | A warning will be issued at application startup if the ::[MVC]:: naming scheme is |
547 | in use. |
548 | |
ade00972 |
549 | =head2 Catalyst::Base |
550 | |
8f61d649 |
551 | Any code using L<Catalyst::Base> will now emit a warning; this |
552 | module will be removed in a future release. |
ade00972 |
553 | |
c571d2c8 |
554 | =head2 Methods in Catalyst::Dispatcher |
555 | |
8f61d649 |
556 | The following methods in Catalyst::Dispatcher are implementation |
557 | details, which may change in the 5.8X release series, and therefore their use |
bcc773b9 |
558 | is highly deprecated. |
c571d2c8 |
559 | |
560 | =over |
561 | |
8dd2f514 |
562 | =item tree |
c571d2c8 |
563 | |
8dd2f514 |
564 | =item dispatch_types |
c571d2c8 |
565 | |
8dd2f514 |
566 | =item registered_dispatch_types |
c571d2c8 |
567 | |
8dd2f514 |
568 | =item method_action_class |
c571d2c8 |
569 | |
8dd2f514 |
570 | =item action_hash |
c571d2c8 |
571 | |
572 | =item container_hash |
573 | |
574 | =back |
575 | |
576 | The first time one of these methods is called, a warning will be emitted: |
7e2ec16e |
577 | |
bcc773b9 |
578 | Class $class is calling the deprecated method Catalyst::Dispatcher::$public_method_name, |
dacd8b0e |
579 | this will be removed in Catalyst 5.9 |
7e2ec16e |
580 | |
c571d2c8 |
581 | You should B<NEVER> be calling any of these methods from application code. |
582 | |
8f61d649 |
583 | Plugin authors and maintainers whose plugins currently call these methods |
8f5a2bd9 |
584 | should change to using the public API, or, if you do not feel the public API |
8f61d649 |
585 | adequately supports your use case, please email the development list to |
8f5a2bd9 |
586 | discuss what API features you need so that you can be appropriately supported. |
7e2ec16e |
587 | |
95b20422 |
588 | =head2 Class files with names that don't correspond to the packages they define |
7e2ec16e |
589 | |
e11cac87 |
590 | In this version of Catalyst, if a component is loaded from disk, but no |
ba03ccca |
591 | symbols are defined in that component's name space after it is loaded, this |
bcc773b9 |
592 | warning will be issued: |
7e2ec16e |
593 | |
bcc773b9 |
594 | require $class was successful but the package is not defined. |
7e2ec16e |
595 | |
8f61d649 |
596 | This is to protect against confusing bugs caused by mistyping package names, |
bcc773b9 |
597 | and will become a fatal error in a future version. |
598 | |
599 | Please note that 'inner packages' (via L<Devel::InnerPackage>) are still fully |
8f61d649 |
600 | supported; this warning is only issued when component file naming does not map |
bcc773b9 |
601 | to B<any> of the packages defined within that component. |
7e2ec16e |
602 | |
5687c7f9 |
603 | =head2 $c->plugin method |
604 | |
25f61108 |
605 | Calling the plugin method is deprecated, and calling it at run time is B<highly |
8dd2f514 |
606 | deprecated>. |
7e2ec16e |
607 | |
95a52a01 |
608 | Instead you are recommended to use L<Catalyst::Model::Adaptor> or similar to |
ba03ccca |
609 | compose the functionality you need outside of the main application name space. |
7e2ec16e |
610 | |
4e68badc |
611 | Calling the plugin method will not be supported past Catalyst 5.81. |
bcc773b9 |
612 | |
7e2ec16e |
613 | =cut |
4e68badc |
614 | |