m_req

  • Module: core

This model gives access to the request variables from within a template.

Sometimes you need direct access to request variables in your template. The m_req model is meant for this. It exposes some values from the Webmachine request record.

Fetching a single value

You can fetch individual values by key, for example:

{{ m.req.host|escape }}

Viewing all request variables

Use the print tag to get a complete overview of all request variables:

{% print m.req|make_list %}

This will show something like:

[{method,'GET'},
 {version,{1,1}},
 {peer,"127.0.0.1"},
 {is_ssl,false},
 {host,"test.dev:8000"},
 {raw_path,"/en/page/1234?foo=bar"},
 {path,"/en/page/1234"},
 {qs,[{"foo","bar"}]},
 {referrer,"http://test.dev:8000/"},
 {user_agent,"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/601.4.4 (KHTML, like Gecko) Version/9.0.3 Safari/601.4.4"},
 {req_id,525158920},
 {headers,[{"accept",
            "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"},
           {"accept-encoding","gzip, deflate"},
           {"accept-language","en-us"},
           {"cache-control","max-age=0"},
           {"connection","keep-alive"},
           {"cookie",
            "z_logon=; z_sid=LopWHBmHXCs94virnboZhBHLKV6m1Cga; z_ua=c%3Ddesktop%26u%3D1%26t%3D1%26w%3D1920%26h%3D1200"},
           {"dnt","1"},
           {"host","test.dev:8000"},
           {"referer","http://test.dev:8000/"},
           {"user-agent",
            "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/601.4.4 (KHTML, like Gecko) Version/9.0.3 Safari/601.4.4"}]},
 {ua_class,desktop},
 {ua_props,[{is_user_select,true},
            {has_pointer,true},
            {is_desktop,true},
            {is_crawler,false},
            {is_wireless_device,false},
            {is_tablet,false},
            {ajax_support_javascript,true},
            {device_os,<<"-">>},
            {displayWidth,1920},
            {displayHeight,1200},
            {inputDevices,<<"-">>},
            {parentId,<<"generic-">>},
            {model,<<"browser">>},
            {vendor,<<"desktop">>},
            {id,<<"desktopDevice">>}]},
 {timezone,<<"UTC">>},
 {language,en}]

Please note that all values are raw and not escaped, take care to escape the values before you use them in your templates, using the escape filter.

The make_list filter is used to force the evaluation of the model; otherwise it would just print {m,req,undefined}.

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