Comments (3)
Underscores sure are a problem. When you write [:db/add X :test/_bar Y] it reads backwards, meaning “put a reference from Y to X via :test/bar property”. So it expects both X and Y to be integers. In your case, you put hashmap at Y pos, and that wouldn’t work as an entity id.
So two problems for me to fix here:
-
Error message should be improved (sorry about that)
-
Error should be thrown in second case (you don’t get it here by pure luck):
(d/transact! conn [{:db/id -1 :test/_bar {:baz "qux"}}])
from datascript.
@tonsky Okay, thanks. I'll have to read the Datomic docs about this. I don't get any error when there's only a single attribute (like no. 2 above).
from datascript.
datomic allows to specify maps when creating nested relation, but ds does not support this feature yet. what about backward relation, I'm no sure that even datomic supports that=
from datascript.
Related Issues (20)
- `get-else` fails when passed a lookup.
- `entity` returns entities for ids that don't exist HOT 2
- Is there any doc to demo idiom way to implement pagination in datascript? HOT 4
- Upsert of datom with composite tuple containing lookup ref fails HOT 5
- Recursive reverse lookups not working quite like it should HOT 1
- Lookup ref in composite tuple during upsert HOT 2
- do we have double vector type? HOT 2
- `:xform` is not called on ref attributes HOT 2
- Query performance with rules is much worse than "equivalent" inline clause HOT 3
- Ability to pass multiple functions into query HOT 1
- Index usage doesn't match datomic behavior and appears to be much less efficient HOT 1
- Inaccurate temporary IDs after transit deserialization
- Unable to resolve tempids on :db.unique/identity refs HOT 2
- Handling of BigDecimal
- Regression in 1.6.4: Can’t sum relations with different attrs HOT 1
- Regression in 1.6.4: unbound vars not filtered HOT 1
- Indexes on vectors return surprising results HOT 1
- substitute-constants defined twice HOT 1
- tempid conflict-resolve exception HOT 2
- Upsert on entity with identity composite tuple HOT 1
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from datascript.