Question about splitting tags in a dolist...

[Jim Barrows]

I'm pulling records from a database, and I don't know how many I'll have.
I need to display them in a 3 by X grid built in CSS. So it needs to look
something like:
(:div :class "row"
(:div :class "span-one-third" "1/3")
(:div :class "span-one-third" "1/3")
(:div :class "span-one-third" "1/3"))

Since I don't know how many rows are returning, I can't really hard code it
like the above example.

I'm new to lisp, so I may just be thinking about this in the wrong way. In
Java, opening a tag like this and closing it is a very common pattern.
Maybe I'm just thinking too much in Java...

[Jeffrey Cunningham]

Post by Jim Barrows
I'm pulling records from a database, and I don't know how many I'll
have. I need to display them in a 3 >by X grid built in CSS. So it
(:div :class "row" (:div :class "span-one-third" "1/3")
(:div :class "span-one-third" "1/3")
(:div :class "span-one-third" "1/3"))
Since I don't know how many rows are returning, I can't really hard code
it like the above example.
I'm new to lisp, so I may just be thinking about this in the wrong way.
In Java, opening a tag like this and >closing it is a very common
pattern. Maybe I'm just thinking too much in Java...
--James A Barrows

Here's one way:

(let ((records '((1 2 3) (4 5 6) (7 8 9))))
(with-html-output (*standard-output* nil :indent 0)
(dolist (rec records)
(htm (:div :class "row"
(dolist (col rec)
(htm (:div :class "span-one-third" (str col)))))))))

Jeff Cunningham

[Jim Barrows]

I figured it out, thanks to Jeffrey. I appreciated the help, you pointed
me in the right direction.
What's really cool, is that by forcing me to not split the tags, I ended up
with a much cleaner solution. It'll be even cleaner when I fix the hard
coded list building :)

(defun people-and-organizations-list ()
"Creates a list of people and organizations"
(web-common::with-html
(:section :id "people-and-organization-list"
(:a :href *add-organization-url* "Add Organization")
(let ((result-list (people-and-organizations-query))
(columns 3))
(loop for i from 0 to (list-length result-list) by 3 do
(people-and-organizations-row (list (nth i result-list)
(nth (+ 1 i) result-list)
(nth (+ 2 i) result-list))))))))


On Thu, Nov 17, 2011 at 10:19 AM, Jeffrey Cunningham <

Post by Jim Barrows
**
I'm pulling records from a database, and I don't know how many I'll have.
I need to display them in a 3 by X grid built in CSS. So it needs to look
(:div :class "row"
(:div :class "span-one-third" "1/3")
(:div :class "span-one-third" "1/3")
(:div :class "span-one-third" "1/3"))
Since I don't know how many rows are returning, I can't really hard code
it like the above example.
I'm new to lisp, so I may just be thinking about this in the wrong way.
In Java, opening a tag like this and closing it is a very common pattern.
Maybe I'm just thinking too much in Java...
--
James A Barrows
(let ((records '((1 2 3) (4 5 6) (7 8 9))))
(with-html-output (*standard-output* nil :indent 0)
(dolist (rec records)
(htm (:div :class "row"
(dolist (col rec)
(htm (:div :class "span-one-third" (str col)))))))))
Jeff Cunningham