Parsing a list of hash table

[asarch]

If you would:

(render #P"foods.html"
    (list :foods '((:id 10 :nombre "Pizza" :origin "Italy")
                   (:id 32 :nombre "Sushi" :origin "Japan")
                   (:id 92 :nombre "Taco" :origin "Mexico"))

How would you get the values of every hash table in the list?

{% for food in foods %}
	{% for (key . value) in food %}
		<p>{{ value }}</p>
	{% endfor %}
{% endfor %}

does not work

[mmontone]

I'm not sure you can.

You could pass preprocessed values and work with that:

(defun plist-values (plist)
	   (loop for v in (cdr plist) by #'cddr
		 collect v))

(let ((foods '((:id 10 :nombre "Pizza" :origin "Italy")
                   (:id 32 :nombre "Sushi" :origin "Japan")
                   (:id 92 :nombre "Taco" :origin "Mexico"))))
	   (list :foods foods
		 :foods-values (mapcar 'plist-values foods)))

[vindarel]

strictly speaking :foods is a list of plists right? (not hash-tables)

+1 for Mariano's preprocessing, foods-values looks like this:

 :FOODS-VALUES ((10 "Pizza" "Italy") (32 "Sushi" "Japan") (92 "Taco" "Mexico")))

or yet make it look like

'(((:id 10) (:nombre "pizza") (:origin "Italy)
   (:id …) (…)))

(more parens…)

or (?) loop over the list and check if the value is a key by checking if it starts with a colon (could be done easily with a template filter, they are easy to create),

or return a list of structs or objects, etc.

my 2c :)