diff --git a/Using-Liquid-without-Rails.textile b/Using-Liquid-without-Rails.textile index 0be604a..03d7f29 100644 --- a/Using-Liquid-without-Rails.textile +++ b/Using-Liquid-without-Rails.textile @@ -7,7 +7,8 @@ The big secret, however, is creating a @to_liquid@ method for any classes you wa Let's say you have a Product class: -
class Product
+
+class Product
attr_accessor :name, :price
def initialize(name,price)
@@ -15,25 +16,28 @@ Let's say you have a Product class:
@price = price
end
end
-
+
And you have a chunk of text that you want to Liquidize by inserting some details about your products:
-sentence = "I'm running to the store with {{ product.price }} dollars in my pocket "
+
+sentence = "I'm running to the store with {{ product.price }} dollars in my pocket "
sentence += "to buy a {{ product.name }}."
-
+
And you create a product and parse the sentence:
-my_purchase = Product.new('box of sausages', 20)
+
+my_purchase = Product.new('box of sausages', 20)
puts Liquid::Template.parse(sentence).render('product' => my_purchase)
-
+
You excitedly execute your code, expecting to see your beautiful new sentence, but instead you get:
-I'm running to the store with Liquid error:
+
+I'm running to the store with Liquid error:
undefined method `to_liquid' for #
+
@to_liquid@ ???
Where did that come from?
@@ -42,7 +46,8 @@ Turns out you need to add a method to your class that returns your instance vari
so you need to explicitly let Liquid know how to access everything in your object.)
So, we update the @Product@ class description to include that method:
-class Product
+
+class Product
attr_accessor :name, :price
def initialize(name, price)
@@ -55,16 +60,18 @@ So, we update the @Product@ class description to include that method:
"price" => self.price }
end
end
-
+
Run that again and presto:
-I'm running to the store with 20 dollars in my pocket to buy a box of sausages.
-
++I'm running to the store with 20 dollars in my pocket to buy a box of sausages. +However, that's a bit verbose, so you may want to use @liquid_methods@, instead: -
class Product
+
+class Product
attr_accessor :name, :price
liquid_methods :name, :price
@@ -73,6 +80,6 @@ However, that's a bit verbose, so you may want to use @liquid_methods@, instead:
@price = price
end
end
-
+
(Thanks to "Tom's":http://github.com/mojombo "Jekyll":http://github.com/mojombo/jekyll/tree/master/lib/jekyll/post.rb#L122-128 code for helping me figuring this out.)
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