Fluent api configuration
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The document lists important Fluent API methods for configuring Entity Framework Core models and their corresponding usages. It groups the methods into model-wide configurations, entity configurations, and property configurations. Some key methods listed include HasDefaultSchema() for model-wide schema, HasKey() for configuring primary keys, HasMany() for many-to-many relationships, and property specific methods like HasColumnType() for configuring column data types.
Fluent api configuration
- 1. The following table lists important Fluent API methods. Configurations Fluent API Methods Usage Model-wide Configurations HasDefaultSchema() Specifies the default database schema. ComplexType() Configures the class as complex type. Entity Configurations HasIndex() Configures the index property for the entity type. HasKey() Configures the primary key property for the entity type. HasMany() Configures the Many relationship for one-to-many or many-to- many relationships. HasOptional() Configures an optional relationship which will create a nullable foreign key in the database. HasRequired() Configures the required relationship which will create a non- nullable foreign key column in the database. Ignore() Configures that the class or property should not be mapped to a table or column. Map() Allows advanced configuration related to how the entity is mapped to the database schema. MapToStoredProcedures() Configures the entity type to use INSERT, UPDATE and DELETE stored procedures. ToTable() Configures the table name for the entity. Property Configurations HasColumnAnnotation() Sets an annotation in the model for the database column used to store the property. IsRequired() Configures the property to be required on SaveChanges(). IsConcurrencyToken() Configures the property to be used as an optimistic concurrency token.
- 2. The following table lists important Fluent API methods. IsOptional() Configures the property to be optional which will create a nullable column in the database. HasParameterName() Configures the name of the parameter used in the stored procedure for the property. HasDatabaseGeneratedOption() Configures how the value will be generated for the corresponding column in the database e.g. computed, identity or none. HasColumnOrder() Configures the order of the database column used to store the property. HasColumnType() Configures the data type of the corresponding column of a property in the database. HasColumnName() Configures the corresponding column name of a property in the database. IsConcurrencyToken() Configures the property to be used as an optimistic concurrency token.