There is an example like this in the Sequence section and a bit on this
issue in particular.
On Thursday, May 26, 2016 at 7:08:44 AM UTC-5, Sven Richter wrote:
>
> Ah thanks, that worked, not quite as I expected. Up until this point it
> was pretty straightforward for me, thats been my fist bummer.
>
> Do you have an example for this in the guide? I did not fully read it, but
> I think I scrolled through everything that used fdefs.
>
> Best Regards,
> Sven
>
> Am Donnerstag, 26. Mai 2016 12:21:15 UTC+2 schrieb Alex Miller:
>>
>> It's a little tricky but you want:
>>
>> (s/fdef remove-autoinc-columns :args (s/cat :cols (s/spec ::columns)))
>>
>> Here the args data is ([{:foo "some_t"}]) and while you have an s/cat for
>> :args and an s/cat in ::columns, those will be combined into the same regex
>> so that's basically the same thing as ::columns. You need to force a new
>> level of regex context and the s/spec will do that.
>>
>> On Thursday, May 26, 2016 at 4:32:52 AM UTC-5, Sven Richter wrote:
>>>
>>> Hi,
>>>
>>> I already asked this in the spec channel on slack, but got no response
>>> yet.
>>>
>>> I have this simple spec definition:
>>>
>>> (s/def ::foo string?)
>>>
>>>
>>>
>>> (s/def ::column (s/keys :req-un [::foo]))
>>>
>>>
>>>
>>> (s/def ::columns (s/cat :col (s/* (s/spec ::column))))
>>>
>>> ;(s/def ::columns (s/cat :col (s/* ::column)))
>>>
>>>
>>>
>>> (defn remove-autoinc-columns [cols]
>>>
>>> (vec (remove #(= true (:autoinc %)) cols)))
>>>
>>>
>>>
>>> (s/fdef remove-autoinc-columns :args (s/cat :cols ::columns)
>>>
>>> :ret ::columns)
>>>
>>>
>>>
>>>
>>> $(remove-autoinc-columns [{:foo "some_t"}])
>>>
>>> ===> ExceptionInfo Call to
>>> #'de.sveri.clospcrud.s-play/remove-autoinc-columns did not conform to spec:
>>>
>>> At: [:args] val: ([{:foo "some_t"}]) fails predicate: (cat :cols
>>> :de.sveri.clospcrud.s-play/columns), Extra input
>>>
>>> :clojure.spec/args ([{:foo "some_t"}])
>>>
>>> clojure.core/ex-info (core.clj:4617)
>>>
>>>
>>> On the other hand, running this:
>>> (s/conform ::columns [{:foo "some_t"}])
>>> => {:col [{:foo "some_t"}]}
>>> works.
>>>
>>> So something is broken within the fdefs argument definition.
>>>
>>> I dont see my mistake here, can somone else reproduce / fix this?
>>>
>>> Thanks,
>>> Sven
>>>
>>
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