diff --git a/spec/asset/hello_with_content_for.ecr b/spec/asset/hello_with_content_for.ecr
new file mode 100644
index 0000000..149b294
--- /dev/null
+++ b/spec/asset/hello_with_content_for.ecr
@@ -0,0 +1,5 @@
+Hello <%= name %>
+
+<% content_for "custom" do %>
+ Hello from otherside
+<% end %>
\ No newline at end of file
diff --git a/spec/asset/layout_with_yield.ecr b/spec/asset/layout_with_yield.ecr
new file mode 100644
index 0000000..035cc8d
--- /dev/null
+++ b/spec/asset/layout_with_yield.ecr
@@ -0,0 +1,3 @@
+<%= content %>
+
+<%= yield_content "custom" %>
\ No newline at end of file
diff --git a/spec/view_spec.cr b/spec/view_spec.cr
index ab17b60..1d6a6fe 100644
--- a/spec/view_spec.cr
+++ b/spec/view_spec.cr
@@ -34,4 +34,15 @@ describe "Views" do
client_response = call_request_on_app(request)
client_response.body.should contain("Hello world")
end
+
+ it "renders layout with content_for" do
+ get "/view/:name" do |env|
+ name = env.params.url["name"]
+ render "spec/asset/hello_with_content_for.ecr", "spec/asset/layout_with_yield.ecr"
+ end
+ request = HTTP::Request.new("GET", "/view/world")
+ client_response = call_request_on_app(request)
+ client_response.body.should contain("Hello world")
+ client_response.body.should contain("Hello from otherside
")
+ end
end
diff --git a/src/kemal/helpers.cr b/src/kemal/helpers.cr
index bf6f4c6..b1491f8 100644
--- a/src/kemal/helpers.cr
+++ b/src/kemal/helpers.cr
@@ -1,5 +1,20 @@
require "kilt"
+CONTENT_FOR_BLOCKS = Hash(String, Proc(String)).new
+
+macro content_for(key)
+ CONTENT_FOR_BLOCKS[{{key}}] = ->() {
+ __kilt_io__ = MemoryIO.new
+ {{ yield }}
+ __kilt_io__.to_s
+ }
+ nil
+end
+
+macro yield_content(key)
+ CONTENT_FOR_BLOCKS[{{key}}].call
+end
+
# Uses built-in ECR to render views.
# # Usage
# get '/' do