System checks¶

This page catalogs the system checks in Django MongoDB Backend.

Constraints¶

mongodb.constraints.embedded_unique.E001: EmbeddedFieldUniqueConstraint <name> must have nulls_distinct=False since it references EmbeddedModelArrayField <name>.

Indexes¶

mongodb.indexes.search.W001: This MongoDB server does not support SearchIndex. The index won’t be created. Use a Search-enabled version of MongoDB, or silence this warning if you don’t care about it.
mongodb.indexes.search.E002: VectorSearchIndex requires size on field <field>.
mongodb.indexes.search.E003: VectorSearchIndex requires the base field of ArrayField <field> to be FloatField or IntegerField but is <field_type>.
mongodb.indexes.search.E004: VectorSearchIndex does not support field <field> (<field type>). Allowed types are boolean, date, number, objectId, string, uuid.
mongodb.indexes.search.E005: VectorSearchIndex requires the same number of similarities and vector fields; <model> has <#> ArrayField(s) but similarities has <#> element(s).
mongodb.indexes.search.E006: VectorSearchIndex requires at least one ArrayField to store vector data. If you want to perform search operations without vectors, use SearchIndex instead.
mongodb.indexes.search.E007: VectorSearchIndex requires the same number of indexing methods and vector fields; <model> has <#> ArrayField(s) but indexing_methods has <#> element(s).

Fields¶

mongodb.fields.array.E001: Base field for array has errors: …
mongodb.fields.array.E002: Base field for array cannot be a related field.
mongodb.fields.array.E003: ArrayField cannot have both size and max_size.
mongodb.fields.array.W004: Base field for array has warnings: …
mongodb.fields.auto.E001: MongoDB does not support AutoField. Use django_mongodb_backend.fields.ObjectIdAutoField instead.
mongodb.fields.embedded_model.E001: Embedded models cannot have relational fields.
mongodb.fields.embedded_model.E002: Embedded models must be a subclass of django_mongodb_backend.models.EmbeddedModel.
mongodb.fields.embedded_model.W003: Embedded models <model A> and <model B> both have field <field> of different type. It may be impossible to query both fields.
mongodb.fields.embedded_model.W004: Using db_index=True on embedded fields is deprecated in favor of using EmbeddedFieldIndex in Meta.indexes on the top-level model.
mongodb.fields.embedded_model.W005: Using unique=True on embedded fields is deprecated in favor of using EmbeddedFieldUniqueConstraint in Meta.constraints on the top-level model.
mongodb.fields.embedded_model.W006: Using Meta.constraints on embedded models is deprecated in favor of using EmbeddedFieldUniqueConstraint in Meta.constraints on the top-level model.
mongodb.fields.embedded_model.W007: Using Meta.indexes on embedded models is deprecated in favor of using EmbeddedFieldIndex in Meta.indexes on the top-level model.
mongodb.fields.embedded_model.W008: Using Meta.unique_together on embedded models is deprecated in favor of using EmbeddedFieldUniqueConstraint in Meta.constraints on the top-level model.
mongodb.fields.encryption.E001: <field> cannot contain encrypted fields (found <field class>).