Bingo:
user=> (filter (complement :dh-uuid) (apply concat (map find-records
query-parts)))
({:a2p-id "3", :dh-uuid nil} {:a2p-id "3", :dh-uuid nil})
Thanks everyone!
On Saturday, 25 May 2013 19:29:55 UTC+2, Andy Fingerhut wrote:
>
> Woops, and here I wasn't being careful enough... You have a list (or
> sequence) of two elements, both of which are lists (or sequences) of maps.
> You can use (apply concat (map find-records query-parts)) to return a
> single list containing nothing but maps.
>
> Andy
>
>
> On Sat, May 25, 2013 at 10:27 AM, Andy Fingerhut
> <[email protected]<javascript:>
> > wrote:
>
>> If (map find-records query-parts) is returning this expression:
>>
>>
>> (({:a2p-id "1", :dh-uuid "abc-def-ghi-klm"} {:a2p-id "2", :dh-uuid
>> "def-ghi-klm-opq"} {:a2p-id "3", :dh-uuid nil}) ({:a2p-id "1", :dh-uuid
>> "abc-def-ghi-klm"} {:a2p-id "2", :dh-uuid "def-ghi-klm-opq"} {:a2p-id "3",
>> :dh-uuid nil}))
>>
>> then especially note the double parentheses. That is a list (or
>> sequence), whose first element is a list (or sequence) of maps. You can
>> use (first (map find-records query-parts)) to get the inner list.
>>
>> Andy
>>
>>
>> On Sat, May 25, 2013 at 4:21 AM, Mond Ray <[email protected]<javascript:>
>> > wrote:
>>
>>> I am missing something obvious... I get a list of maps back from a
>>> function and I want to find the elements with nil
>>>
>>> (({:a2p-id "1", :dh-uuid "abc-def-ghi-klm"} {:a2p-id "2", :dh-uuid
>>> "def-ghi-klm-opq"} {:a2p-id "3", :dh-uuid nil}) ({:a2p-id "1", :dh-uuid
>>> "abc-def-ghi-klm"} {:a2p-id "2", :dh-uuid "def-ghi-klm-opq"} {:a2p-id "3",
>>> :dh-uuid nil}))
>>>
>>> I try the select function but it has no effect ... same list
>>>
>>> (set/select #(not (:dh-uuid %)) (map find-records query-parts))
>>>
>>> also tried the previously working example... same list
>>>
>>> (filter #(not (:dh-uuid %)) (map find-records query-parts))
>>>
>>> I am assuming that I am not indexing into each of the maps but I cannot
>>> remember or find out how to do this ... all examples only show one map
>>>
>>> Thanks
>>>
>>> Ray
>>>
>>> --
>>> --
>>> You received this message because you are subscribed to the Google
>>> Groups "Clojure" group.
>>> To post to this group, send email to [email protected]<javascript:>
>>> Note that posts from new members are moderated - please be patient with
>>> your first post.
>>> To unsubscribe from this group, send email to
>>> [email protected] <javascript:>
>>> For more options, visit this group at
>>> http://groups.google.com/group/clojure?hl=en
>>> ---
>>> You received this message because you are subscribed to the Google
>>> Groups "Clojure" group.
>>> To unsubscribe from this group and stop receiving emails from it, send
>>> an email to [email protected] <javascript:>.
>>> For more options, visit https://groups.google.com/groups/opt_out.
>>>
>>>
>>>
>>
>>
>
--
--
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to [email protected]
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
---
You received this message because you are subscribed to the Google Groups
"Clojure" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/groups/opt_out.
