instance method
link_to_unless
Ruby on Rails edge
Since edgeSignature
link_to_unless(condition, name, options = {}, html_options = {}, &block)Creates a link tag of the given name using a URL created by the set of options unless condition is true, in which case only the name is returned. To specialize the default behavior (i.e., show a login link rather than just the plaintext link text), you can pass a block that accepts the name or the full argument list for link_to_unless.
Examples
<%= link_to_unless(@current_user.nil?, "Reply", { action: "reply" }) %>
# If the user is logged in...
# => <a href="/controller/reply/">Reply</a>
<%=
link_to_unless(@current_user.nil?, "Reply", { action: "reply" }) do |name|
link_to(name, { controller: "accounts", action: "signup" })
end
%>
# If the user is logged in...
# => <a href="/controller/reply/">Reply</a>
# If not...
# => <a href="/accounts/signup">Reply</a>Parameters
-
conditionreq -
namereq -
optionsopt = {} -
html_optionsopt = {} -
blockblock
Source
# File actionview/lib/action_view/helpers/navigation_helper.rb, line 486
def link_to_unless(condition, name, options = {}, html_options = {}, &block)
link_to_if !condition, name, options, html_options, &block
end
Defined in actionview/lib/action_view/helpers/navigation_helper.rb line 486
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Defined in ActionView::Helpers::NavigationHelper