Re: Prismatic Schema: Defining a schema for key-value pairs
That is exactly what I am looking for! -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com 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 clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Prismatic Schema: Defining a schema for key-value pairs
Schemas are "path-independent", so you have to do this at the level of the
map. The easiest way would be to use s/constrained with a predicate, e.g.,
user> (def my-map (s/constrained {Class Object} (fn matching-kvs? [m]
(every? #(isa? (type (val %)) (key %)) m
#'user/my-map
user> (s/validate my-map {Number 1 String "asdf"})
{java.lang.Number 1, java.lang.String "asdf"}
user> (s/validate my-map {Number 1 "String" "asdf"})
ExceptionInfo Value does not match schema: {(not (instance? java.lang.Class
"String")) invalid-key} schema.core/validator/fn--612 (core.clj:151)
user> (s/validate my-map {Number "1" String "asdf"})
ExceptionInfo Value does not match schema: (not (user/matching-kvs?--25671
a-clojure.lang.PersistentArrayMap)) schema.core/validator/fn--612
(core.clj:151)
Does that do what you want?
On Friday, January 15, 2016 at 7:04:08 PM UTC, JvJ wrote:
>
>
> I've recently started using prismatic schema, and I'm attempting to define
> a schema for a map data structure.
>
> I understand that it is possible to use a schema to define the types of
> both keys and values in the map, like so:
>
> (def my-map {key-schema val-schema})
>
>
> However, I would like to use the schema to enforce certain relationships
> between the keys and values. In particular, this one:
>
> (fn [[k v]]
>(isa? (type v) k))
>
>
> Is it possible to define an associative map schema that applies a
> predicate to key-value pairs rather than just keys and values separately?
>
> Thanks
>
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Re: Prismatic Schema: Defining a schema for key-value pairs
Do you know if there's a way to identify the particular key that failed in the error message? On Saturday, 16 January 2016 02:01:49 UTC-8, JvJ wrote: > > That is exactly what I am looking for! -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com 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 clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Prismatic Schema: Defining a schema for key-value pairs
Currently, you would have to define your own schema type to control the error messages: https://github.com/plumatic/schema/wiki/Defining-New-Schema-Types-1.0 If you want to submit an issue, we can look into ways to make this simpler. Thanks! On Saturday, January 16, 2016 at 11:52:20 PM UTC, JvJ wrote: > > Do you know if there's a way to identify the particular key that failed in > the error message? > > On Saturday, 16 January 2016 02:01:49 UTC-8, JvJ wrote: >> >> That is exactly what I am looking for! > > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com 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 clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Prismatic Schema: Defining a schema for key-value pairs
I've recently started using prismatic schema, and I'm attempting to define
a schema for a map data structure.
I understand that it is possible to use a schema to define the types of
both keys and values in the map, like so:
(def my-map {key-schema val-schema})
However, I would like to use the schema to enforce certain relationships
between the keys and values. In particular, this one:
(fn [[k v]]
(isa? (type v) k))
Is it possible to define an associative map schema that applies a predicate
to key-value pairs rather than just keys and values separately?
Thanks
--
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