Class DatabaseIntrospection

Declaration

Methods

• ▶ def get_constraints(self, cursor, table_name) override

  Retrieve any constraints or keys (unique, pk, fk, check, index) across one or more columns.

  source link

  This method overrides django.db.backends.base.introspection.BaseDatabaseIntrospection.get_constraints.

  Overrides

  This method is overriden in:

  • django.contrib.gis.db.backends.spatialite.introspection.SpatiaLiteIntrospection
• ▶ def get_field_type(self, data_type, description) override

  inherited doc Hook for a database backend to use the cursor description to match a Django field type to a database column.

  source link

  This method overrides django.db.backends.base.introspection.BaseDatabaseIntrospection.get_field_type.

  For Oracle, the column data_type on its own is insufficient to
  distinguish between a FloatField and IntegerField, for example.

• ▶ def get_key_columns(self, cursor, table_name) override

  Return a list of (column_name, referenced_table_name, referenced_column_name) for all key columns in given table.

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  This method overrides django.db.backends.base.introspection.BaseDatabaseIntrospection.get_key_columns.

• ▶ def get_primary_key_column(self, cursor, table_name) override

  Return the column name of the primary key for the given table.

  source link

  This method overrides django.db.backends.base.introspection.BaseDatabaseIntrospection.get_primary_key_column.

• ▶ def get_relations(self, cursor, table_name) override

  Return a dictionary of {field_name: (field_name_other_table, other_table)} representing all relationships to the given table.

  source link

  This method overrides django.db.backends.base.introspection.BaseDatabaseIntrospection.get_relations.

• ▶ def get_sequences(self, cursor, table_name, table_fields=()) override

  inherited doc Return a list of introspected sequences for table_name. Each sequence is a dict: {'table': <table_name>, 'column': <column_name>}. An optional 'name' key can be added if the backend supports named sequences.

  source link

  This method overrides django.db.backends.base.introspection.BaseDatabaseIntrospection.get_sequences.

• ▶ def get_table_description(self, cursor, table_name) override

  Return a description of the table with the DB-API cursor.description interface.

  source link

  This method overrides django.db.backends.base.introspection.BaseDatabaseIntrospection.get_table_description.

• ▶ def get_table_list(self, cursor) override

  Return a list of table and view names in the current database.

  source link

  This method overrides django.db.backends.base.introspection.BaseDatabaseIntrospection.get_table_list.

Inherited methods

• Methods inherited from django.db.backends.base.introspection.BaseDatabaseIntrospection:
  __init__, django_table_names, get_migratable_models, identifier_converter, installed_models, sequence_list, table_names

Subclasses

• django.contrib.gis.db.backends.spatialite.introspection.SpatiaLiteIntrospection

Reexports

• Imported in django.contrib.gis.db.backends.spatialite.introspection.
• Imported in django.db.backends.sqlite3.base.

Generated by nedoc v0.9 at 2020-12-29 14:04