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Contents
module Paperclip
module Shoulda
module Matchers
def validate_attachment_content_type name
ValidateAttachmentContentTypeMatcher.new(name)
end
class ValidateAttachmentContentTypeMatcher
def initialize attachment_name
@attachment_name = attachment_name
end
def allowing *types
@allowed_types = types.flatten
self
end
def rejecting *types
@rejected_types = types.flatten
self
end
def matches? subject
@subject = subject
@allowed_types && @rejected_types &&
allowed_types_allowed? && rejected_types_rejected?
end
def failure_message
"Content types #{@allowed_types.join(", ")} should be accepted" +
" and #{@rejected_types.join(", ")} rejected by #{@attachment_name}"
end
def negative_failure_message
"Content types #{@allowed_types.join(", ")} should be rejected" +
" and #{@rejected_types.join(", ")} accepted by #{@attachment_name}"
end
def description
"validate the content types allowed on attachment #{@attachment_name}"
end
protected
def allow_types?(types)
types.all? do |type|
file = StringIO.new(".")
file.content_type = type
(subject = @subject.new).attachment_for(@attachment_name).assign(file)
subject.valid? && subject.errors.on(:"#{@attachment_name}_content_type").blank?
end
end
def allowed_types_allowed?
allow_types?(@allowed_types)
end
def rejected_types_rejected?
not allow_types?(@rejected_types)
end
end
end
end
end
Version data entries
17 entries across 17 versions & 7 rubygems