1Mojolicious::Renderer(3U)ser Contributed Perl DocumentatiMoonjolicious::Renderer(3)
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NAME

6       Mojolicious::Renderer - Generate dynamic content
7

SYNOPSIS

9         use Mojolicious::Renderer;
10
11         my $renderer = Mojolicious::Renderer->new;
12         push @{$renderer->classes}, 'MyApp::Controller::Foo';
13         push @{$renderer->paths}, '/home/sri/templates';
14

DESCRIPTION

16       Mojolicious::Renderer is the standard Mojolicious renderer.
17
18       See Mojolicious::Guides::Rendering for more.
19

ATTRIBUTES

21       Mojolicious::Renderer implements the following attributes.
22
23   cache
24         my $cache = $renderer->cache;
25         $renderer = $renderer->cache(Mojo::Cache->new);
26
27       Renderer cache, defaults to a Mojo::Cache object.
28
29   classes
30         my $classes = $renderer->classes;
31         $renderer   = $renderer->classes(['main']);
32
33       Classes to use for finding templates in "DATA" sections with
34       Mojo::Loader, first one has the highest precedence, defaults to "main".
35       Only files with exactly two extensions will be used, like
36       "index.html.ep". Note that for templates to be detected, these classes
37       need to have already been loaded and added before "warmup" is called,
38       which usually happens automatically during application startup.
39
40         # Add another class with templates in DATA section
41         push @{$renderer->classes}, 'Mojolicious::Plugin::Fun';
42
43         # Add another class with templates in DATA section and higher precedence
44         unshift @{$renderer->classes}, 'Mojolicious::Plugin::MoreFun';
45
46   compress
47         my $bool  = $renderer->compress;
48         $renderer = $renderer->compress($bool);
49
50       Try to negotiate compression for dynamically generated response content
51       and "gzip" compress it automatically, defaults to false. Note that this
52       attribute is EXPERIMENTAL and might change without warning!
53
54   default_format
55         my $default = $renderer->default_format;
56         $renderer   = $renderer->default_format('html');
57
58       The default format to render if "format" is not set in the stash,
59       defaults to "html". Note that changing the default away from "html" is
60       not recommended, as it has the potential to break, for example, plugins
61       with bundled templates.
62
63   default_handler
64         my $default = $renderer->default_handler;
65         $renderer   = $renderer->default_handler('ep');
66
67       The default template handler to use for rendering in cases where auto-
68       detection doesn't work, like for "inline" templates.
69
70   encoding
71         my $encoding = $renderer->encoding;
72         $renderer    = $renderer->encoding('koi8-r');
73
74       Will encode generated content if set, defaults to "UTF-8". Note that
75       many renderers such as Mojolicious::Plugin::EPRenderer also use this
76       value to determine if template files should be decoded before
77       processing.
78
79   handlers
80         my $handlers = $renderer->handlers;
81         $renderer    = $renderer->handlers({epl => sub {...}});
82
83       Registered handlers.
84
85   helpers
86         my $helpers = $renderer->helpers;
87         $renderer   = $renderer->helpers({url_for => sub {...}});
88
89       Registered helpers.
90
91   paths
92         my $paths = $renderer->paths;
93         $renderer = $renderer->paths(['/home/sri/templates']);
94
95       Directories to look for templates in, first one has the highest
96       precedence.
97
98         # Add another "templates" directory
99         push @{$renderer->paths}, '/home/sri/templates';
100
101         # Add another "templates" directory with higher precedence
102         unshift @{$renderer->paths}, '/home/sri/themes/blue/templates';
103

METHODS

105       Mojolicious::Renderer inherits all methods from Mojo::Base and
106       implements the following new ones.
107
108   accepts
109         my $all  = $renderer->accepts(Mojolicious::Controller->new);
110         my $best = $renderer->accepts(Mojolicious::Controller->new, 'html', 'json');
111
112       Select best possible representation for Mojolicious::Controller object
113       from "format" "GET"/"POST" parameter, "format" stash value, or "Accept"
114       request header, defaults to returning the first extension if no
115       preference could be detected.
116
117   add_handler
118         $renderer = $renderer->add_handler(epl => sub {...});
119
120       Register a handler.
121
122         $renderer->add_handler(foo => sub {
123           my ($renderer, $c, $output, $options) = @_;
124           ...
125           $$output = 'Hello World!';
126         });
127
128   add_helper
129         $renderer = $renderer->add_helper(url_for => sub {...});
130
131       Register a helper.
132
133         $renderer->add_helper(foo => sub {
134           my ($c, @args) = @_;
135           ...
136         });
137
138   get_data_template
139         my $template = $renderer->get_data_template({
140           template       => 'foo/bar',
141           format         => 'html',
142           handler        => 'epl'
143         });
144
145       Return a "DATA" section template from "classes" for an options hash
146       reference with "template", "format", "variant" and "handler" values, or
147       "undef" if no template could be found, usually used by handlers.
148
149   get_helper
150         my $helper = $renderer->get_helper('url_for');
151
152       Get a helper by full name, generate a helper dynamically for a prefix,
153       or return "undef" if no helper or prefix could be found. Generated
154       helpers return a proxy object containing the current controller object
155       and on which nested helpers can be called.
156
157   render
158         my ($output, $format) = $renderer->render(Mojolicious::Controller->new, {
159           template => 'foo/bar',
160           foo      => 'bar'
161         });
162
163       Render output through one of the renderers. See "render" in
164       Mojolicious::Controller for a more user-friendly interface.
165
166   respond
167         my $bool = $renderer->respond(Mojolicious::Controller->new, $output, $format);
168         my $bool = $renderer->respond(
169           Mojolicious::Controller->new, $output, $format, $status);
170
171       Finalize dynamically generated response content and "compress" it if
172       possible. Note that this method is EXPERIMENTAL and might change
173       without warning!
174
175   template_for
176         my $name = $renderer->template_for(Mojolicious::Controller->new);
177
178       Return default template name for Mojolicious::Controller object, or
179       "undef" if no name could be generated.
180
181   template_handler
182         my $handler = $renderer->template_handler({
183           template => 'foo/bar',
184           format   => 'html'
185         });
186
187       Return handler for an options hash reference with "template", "format"
188       and "variant" values, or "undef" if no handler could be found.
189
190   template_name
191         my $template = $renderer->template_name({
192           template => 'foo/bar',
193           format   => 'html',
194           handler  => 'epl'
195         });
196
197       Return a template name for an options hash reference with "template",
198       "format", "variant" and "handler" values, or "undef" if no template
199       could be found, usually used by handlers.
200
201   template_path
202         my $path = $renderer->template_path({
203           template => 'foo/bar',
204           format   => 'html',
205           handler  => 'epl'
206         });
207
208       Return the full template path for an options hash reference with
209       "template", "format", "variant" and "handler" values, or "undef" if the
210       file does not exist in "paths", usually used by handlers.
211
212   warmup
213         $renderer->warmup;
214
215       Prepare templates from "classes" for future use.
216

SEE ALSO

218       Mojolicious, Mojolicious::Guides, <https://mojolicious.org>.
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222perl v5.28.1                      2018-11-22          Mojolicious::Renderer(3)
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