Thanks Jordan - I just couldn't quite get that magic combination :)
On Sunday, December 9, 2012 11:38:50 PM UTC+1, Jordan wrote:
>
>
>
>
> On Sun, Dec 9, 2012 at 4:45 PM, mond <r...@mcdermott.be <javascript:>>wrote:
>
>> ; I have these records defined
>>
>> (defrecord Customer [firstName lastName emailAddress deliveryAddress
>> invoiceAddress])
>> (defrecord Address [street number town postcode])
>>
>
> This looks fine
>
>
>>
>> ; I have this small sample data
>> (def customers
>> {
>> (->Customer "Drongo" "Bongo" "dro...@bongo.co <javascript:>"
>> (->Address "Gongo" "32A" "Fongo" 8888)
>> (->Address "Gongo" "32B" "Fongo" 1111))
>>
>> (->Customer "Tinga" "Zinga" "qi...@zinga.co <javascript:>"
>> (->Address "Thinga" "767" "Dongo" 2222)
>> (->Address "Jinga" "828" "Qongo" 3333))
>> }
>> )
>>
>
> You probably want this to be a vector of customers instead of a map?
>
> so,
>
> (def customers
> [
> (->Customer "Drongo" "Bongo" "dro...@bongo.co <javascript:>"
> (->Address "Gongo" "32A" "Fongo" 8888)
> (->Address "Gongo" "32B" "Fongo" 1111))
>
> (->Customer "Tinga" "Zinga" "qi...@zinga.co <javascript:>"
> (->Address "Thinga" "767" "Dongo" 2222)
> (->Address "Jinga" "828" "Qongo" 3333))
> ]
> )
>
>
>>
>> ; and I want a small filter on an embedded property
>> (deliveryAddress.number)
>> ; this compiles but of course it's wrong so gives back an empty list
>>
>> (prn (filter #(= "32A" (:deliveryAddress :number %)) customers))
>>
>
> So you can write this a bunch of different ways:
>
> (prn (filter #(= (:number (:deliveryAddress %)) "32A") customers))
>
> or if you want to use ->, you can:
>
> (prn (filter #(-> % :deliveryAddress :number (= "32A")) customers))
>
> Cheers,
>
> Jordan
>
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