module Lucky::RequestTypeHelpers

Overview

These helpers check HTTP headers to determine "request MIME type".

Generally the Accept header is checked, but some check other headers, such as X-Requested-With.

default_format(format)
If Lucky doesn't find a format then default to the given format

#accepts?(format : Symbol) : Bool
Check whether the request wants the passed in format
#ajax? : Bool
Check if the request is AJAX
#html? : Bool
Check if the request is HTML
#json? : Bool
Check if the request is JSON
#multipart? : Bool
Check if the request is multipart
#plain_text? : Bool
Check if the request is plain text
#xml? : Bool
Check if the request is XML

macro default_format(format) #

If Lucky doesn't find a format then default to the given format

default_format :html

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def accepts?(format : Symbol) : Bool #

Check whether the request wants the passed in format

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def ajax? : Bool #

Check if the request is AJAX

This tests if the X-Requested-With header is XMLHttpRequest

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def html? : Bool #

Check if the request is HTML

Browsers typically send vague Accept headers. Because of that this will return true when:

The accepted_formats includes :html
And the Accept header is the browser default. For example `text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8

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def json? : Bool #

Check if the request is JSON

This tests if the request type is application/json

[View source]

def multipart? : Bool #

Check if the request is multipart

This tests if the Content-Type header is multipart/form-data

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def plain_text? : Bool #

Check if the request is plain text

This tests if the Accept header type is text/plain or with the optional character set per W3 RFC1341 7.1

[View source]

def xml? : Bool #

Check if the request is XML

This tests if the request type is application/xml

[View source]