Module parser_database::walkers

Convenient access to a datamodel as understood by ParserDatabase.

The walkers:

• Know about specific types and what kind they are (models, enums, etc.)
• Know about attributes and which ones are defined and allowed in a Prisma schema.
• Know about relations.
• Do not know anything about connectors, they are generic.

Structs

• CompleteInlineRelationWalker
  Represents a relation that has fields and references defined in one of the relation fields. Includes 1:1 and 1:n relations that are defined from both sides.
• DefaultValueWalker
  An @default() attribute on a field.
• ImplicitManyToManyRelationTableName
  A table name for an implicit relation’s join table. Useful for its Display impl.
• IndexWalker
  An index, unique or fulltext attribute.
• InlineRelationWalker
  An explicitly defined 1:1 or 1:n relation. The walker has the referencing side defined, but might miss the back relation in the AST.
• OperatorClassWalker
  An operator class defines the operators allowed in an index. Mostly a PostgreSQL thing.
• PrimaryKeyWalker
  An @(@)id attribute in the schema.
• RelationFieldId
  An opaque identifier for a model relation field in a schema.
• ScalarFieldAttributeWalker
  A scalar field as referenced in a key specification (id, index or unique).
• TwoWayEmbeddedManyToManyRelationWalker
  Describes an explicit m:n relation between two models. Both sides define fields which must be a single array scalar field, and references that should point to a single scalar field on the referenced model.
• TypedFieldWalker
  A model or composite type field of a scalar type.
• Walker
  A generic walker. Only walkers intantiated with a concrete ID type (I) are useful.

Enums

• IndexFieldWalker
  A field in an index definition. It can point to a scalar field in the current model, or through embedding a field in a composite type.
• RefinedFieldWalker
  A field that has been identified as scalar field or relation field.
• RefinedRelationWalker
  Splits the relation to different types.
• RelationName
  The relation name.

Type Aliases

• CompositeTypeFieldWalker
  A field in a composite type.
• CompositeTypeWalker
  A composite type, introduced with the type keyword in the schema.
• EnumValueWalker
  One value in an enum declaration in the schema.
• EnumWalker
  An enum declaration in the schema.
• FieldWalker
  A model field, scalar or relation.
• ImplicitManyToManyRelationWalker
  Describes an implicit m:n relation between two models. Neither side defines fields, attributes or referential actions, which are all inferred by Prisma.
• ModelWalker
  A model declaration in the Prisma schema.
• RelationFieldWalker
  A relation field on a model in the schema.
• RelationWalker
  A relation that has the minimal amount of information for us to create one. Useful for validation purposes. Holds all possible relation types.
• ScalarFieldWalker
  A scalar field, as part of a model.