mirror of
https://github.com/django/django.git
synced 2025-10-31 01:25:32 +00:00
Removed obsolete SQL generation methods.
This commit is contained in:
Tim Graham
@@ -1,6 +1,5 @@
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from django.db.backends.mysql.base import DatabaseWrapper as MySQLDatabaseWrapper
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from .creation import MySQLCreation
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from .features import DatabaseFeatures
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from .introspection import MySQLIntrospection
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from .operations import MySQLOperations
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@@ -13,6 +12,5 @@ class DatabaseWrapper(MySQLDatabaseWrapper):
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def __init__(self, *args, **kwargs):
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super(DatabaseWrapper, self).__init__(*args, **kwargs)
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self.features = DatabaseFeatures(self)
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self.creation = MySQLCreation(self)
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self.ops = MySQLOperations(self)
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self.introspection = MySQLIntrospection(self)
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@@ -1,18 +0,0 @@
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from django.db.backends.mysql.creation import DatabaseCreation
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class MySQLCreation(DatabaseCreation):
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def sql_indexes_for_field(self, model, f, style):
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from django.contrib.gis.db.models.fields import GeometryField
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output = super(MySQLCreation, self).sql_indexes_for_field(model, f, style)
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if isinstance(f, GeometryField) and f.spatial_index:
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qn = self.connection.ops.quote_name
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db_table = model._meta.db_table
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idx_name = '%s_%s_id' % (db_table, f.column)
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output.append(style.SQL_KEYWORD('CREATE SPATIAL INDEX ') +
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style.SQL_TABLE(qn(idx_name)) +
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style.SQL_KEYWORD(' ON ') +
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style.SQL_TABLE(qn(db_table)) + '(' +
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style.SQL_FIELD(qn(f.column)) + ');')
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return output
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@@ -1,6 +1,5 @@
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from django.db.backends.oracle.base import DatabaseWrapper as OracleDatabaseWrapper
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from .creation import OracleCreation
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from .features import DatabaseFeatures
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from .introspection import OracleIntrospection
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from .operations import OracleOperations
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@@ -14,5 +13,4 @@ class DatabaseWrapper(OracleDatabaseWrapper):
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super(DatabaseWrapper, self).__init__(*args, **kwargs)
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self.features = DatabaseFeatures(self)
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self.ops = OracleOperations(self)
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self.creation = OracleCreation(self)
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self.introspection = OracleIntrospection(self)
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@@ -1,43 +0,0 @@
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from django.db.backends.oracle.creation import DatabaseCreation
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from django.db.backends.utils import truncate_name
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class OracleCreation(DatabaseCreation):
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def sql_indexes_for_field(self, model, f, style):
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"Return any spatial index creation SQL for the field."
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from django.contrib.gis.db.models.fields import GeometryField
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output = super(OracleCreation, self).sql_indexes_for_field(model, f, style)
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if isinstance(f, GeometryField):
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gqn = self.connection.ops.geo_quote_name
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qn = self.connection.ops.quote_name
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db_table = model._meta.db_table
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output.append(style.SQL_KEYWORD('INSERT INTO ') +
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style.SQL_TABLE('USER_SDO_GEOM_METADATA') +
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' (%s, %s, %s, %s)\n ' % tuple(map(qn, ['TABLE_NAME', 'COLUMN_NAME', 'DIMINFO', 'SRID'])) +
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style.SQL_KEYWORD(' VALUES ') + '(\n ' +
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style.SQL_TABLE(gqn(db_table)) + ',\n ' +
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style.SQL_FIELD(gqn(f.column)) + ',\n ' +
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style.SQL_KEYWORD("MDSYS.SDO_DIM_ARRAY") + '(\n ' +
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style.SQL_KEYWORD("MDSYS.SDO_DIM_ELEMENT") +
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("('LONG', %s, %s, %s),\n " % (f._extent[0], f._extent[2], f._tolerance)) +
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style.SQL_KEYWORD("MDSYS.SDO_DIM_ELEMENT") +
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("('LAT', %s, %s, %s)\n ),\n" % (f._extent[1], f._extent[3], f._tolerance)) +
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' %s\n );' % f.srid)
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if f.spatial_index:
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# Getting the index name, Oracle doesn't allow object
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# names > 30 characters.
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idx_name = truncate_name('%s_%s_id' % (db_table, f.column), 30)
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output.append(style.SQL_KEYWORD('CREATE INDEX ') +
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style.SQL_TABLE(qn(idx_name)) +
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style.SQL_KEYWORD(' ON ') +
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style.SQL_TABLE(qn(db_table)) + '(' +
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style.SQL_FIELD(qn(f.column)) + ') ' +
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style.SQL_KEYWORD('INDEXTYPE IS ') +
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style.SQL_TABLE('MDSYS.SPATIAL_INDEX') + ';')
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return output
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@@ -2,68 +2,6 @@ from django.db.backends.postgresql_psycopg2.creation import DatabaseCreation
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class PostGISCreation(DatabaseCreation):
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geom_index_type = 'GIST'
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geom_index_ops = 'GIST_GEOMETRY_OPS'
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geom_index_ops_nd = 'GIST_GEOMETRY_OPS_ND'
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def sql_indexes_for_field(self, model, f, style):
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"Return any spatial index creation SQL for the field."
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from django.contrib.gis.db.models.fields import GeometryField
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output = super(PostGISCreation, self).sql_indexes_for_field(model, f, style)
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if isinstance(f, GeometryField):
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gqn = self.connection.ops.geo_quote_name
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qn = self.connection.ops.quote_name
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db_table = model._meta.db_table
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if f.geography or self.connection.ops.geometry:
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# Geography and Geometry (PostGIS 2.0+) columns are
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# created normally.
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pass
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else:
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# Geometry columns are created by `AddGeometryColumn`
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# stored procedure.
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output.append(style.SQL_KEYWORD('SELECT ') +
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style.SQL_TABLE('AddGeometryColumn') + '(' +
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style.SQL_TABLE(gqn(db_table)) + ', ' +
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style.SQL_FIELD(gqn(f.column)) + ', ' +
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style.SQL_FIELD(str(f.srid)) + ', ' +
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style.SQL_COLTYPE(gqn(f.geom_type)) + ', ' +
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style.SQL_KEYWORD(str(f.dim)) + ');')
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if not f.null:
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# Add a NOT NULL constraint to the field
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output.append(style.SQL_KEYWORD('ALTER TABLE ') +
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style.SQL_TABLE(qn(db_table)) +
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style.SQL_KEYWORD(' ALTER ') +
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style.SQL_FIELD(qn(f.column)) +
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style.SQL_KEYWORD(' SET NOT NULL') + ';')
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if f.spatial_index:
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# Spatial indexes created the same way for both Geometry and
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# Geography columns.
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# PostGIS 2.0 does not support GIST_GEOMETRY_OPS. So, on 1.5
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# we use GIST_GEOMETRY_OPS, on 2.0 we use either "nd" ops
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# which are fast on multidimensional cases, or just plain
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# gist index for the 2d case.
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if f.geography:
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index_ops = ''
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elif self.connection.ops.geometry:
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if f.dim > 2:
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index_ops = ' ' + style.SQL_KEYWORD(self.geom_index_ops_nd)
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else:
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index_ops = ''
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else:
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index_ops = ' ' + style.SQL_KEYWORD(self.geom_index_ops)
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output.append(style.SQL_KEYWORD('CREATE INDEX ') +
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style.SQL_TABLE(qn('%s_%s_id' % (db_table, f.column))) +
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style.SQL_KEYWORD(' ON ') +
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style.SQL_TABLE(qn(db_table)) +
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style.SQL_KEYWORD(' USING ') +
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style.SQL_COLTYPE(self.geom_index_type) + ' ( ' +
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style.SQL_FIELD(qn(f.column)) + index_ops + ' );')
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return output
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def sql_table_creation_suffix(self):
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if self.connection.template_postgis is not None:
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@@ -9,7 +9,6 @@ from django.db.backends.sqlite3.base import (
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from django.utils import six
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from .client import SpatiaLiteClient
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from .creation import SpatiaLiteCreation
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from .features import DatabaseFeatures
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from .introspection import SpatiaLiteIntrospection
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from .operations import SpatiaLiteOperations
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@@ -41,7 +40,6 @@ class DatabaseWrapper(SQLiteDatabaseWrapper):
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self.features = DatabaseFeatures(self)
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self.ops = SpatiaLiteOperations(self)
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self.client = SpatiaLiteClient(self)
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self.creation = SpatiaLiteCreation(self)
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self.introspection = SpatiaLiteIntrospection(self)
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def get_new_connection(self, conn_params):
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@@ -1,32 +0,0 @@
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from django.db.backends.sqlite3.creation import DatabaseCreation
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class SpatiaLiteCreation(DatabaseCreation):
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def sql_indexes_for_field(self, model, f, style):
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"Return any spatial index creation SQL for the field."
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from django.contrib.gis.db.models.fields import GeometryField
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output = super(SpatiaLiteCreation, self).sql_indexes_for_field(model, f, style)
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if isinstance(f, GeometryField):
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gqn = self.connection.ops.geo_quote_name
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db_table = model._meta.db_table
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output.append(style.SQL_KEYWORD('SELECT ') +
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style.SQL_TABLE('AddGeometryColumn') + '(' +
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style.SQL_TABLE(gqn(db_table)) + ', ' +
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style.SQL_FIELD(gqn(f.column)) + ', ' +
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style.SQL_FIELD(str(f.srid)) + ', ' +
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style.SQL_COLTYPE(gqn(f.geom_type)) + ', ' +
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style.SQL_KEYWORD(str(f.dim)) + ', ' +
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style.SQL_KEYWORD(str(int(not f.null))) +
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');')
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if f.spatial_index:
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output.append(style.SQL_KEYWORD('SELECT ') +
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style.SQL_TABLE('CreateSpatialIndex') + '(' +
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style.SQL_TABLE(gqn(db_table)) + ', ' +
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style.SQL_FIELD(gqn(f.column)) + ');')
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return output
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@@ -1,15 +1,10 @@
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import hashlib
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import sys
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import time
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import warnings
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from django.apps import apps
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from django.conf import settings
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from django.core import serializers
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from django.db import router
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from django.db.backends.utils import truncate_name
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from django.utils.deprecation import RemovedInDjango20Warning
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from django.utils.encoding import force_bytes
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from django.utils.six import StringIO
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from django.utils.six.moves import input
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@@ -22,9 +17,7 @@ TEST_DATABASE_PREFIX = 'test_'
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class BaseDatabaseCreation(object):
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"""
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This class encapsulates all backend-specific differences that pertain to
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database *creation*, such as the column types to use for particular Django
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Fields, the SQL used to create and destroy tables, and the creation and
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destruction of test databases.
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creation and destruction of the test database.
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"""
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def __init__(self, connection):
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self.connection = connection
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@@ -36,296 +29,6 @@ class BaseDatabaseCreation(object):
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"""
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return self.connection._nodb_connection
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@classmethod
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def _digest(cls, *args):
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"""
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Generates a 32-bit digest of a set of arguments that can be used to
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shorten identifying names.
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"""
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h = hashlib.md5()
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for arg in args:
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h.update(force_bytes(arg))
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return h.hexdigest()[:8]
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def sql_create_model(self, model, style, known_models=set()):
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"""
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Returns the SQL required to create a single model, as a tuple of:
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(list_of_sql, pending_references_dict)
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"""
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opts = model._meta
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if not opts.managed or opts.proxy or opts.swapped:
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return [], {}
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final_output = []
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table_output = []
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pending_references = {}
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qn = self.connection.ops.quote_name
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for f in opts.local_fields:
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db_params = f.db_parameters(connection=self.connection)
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col_type = db_params['type']
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if db_params['check']:
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col_type = '%s CHECK (%s)' % (col_type, db_params['check'])
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col_type_suffix = f.db_type_suffix(connection=self.connection)
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tablespace = f.db_tablespace or opts.db_tablespace
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if col_type is None:
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# Skip ManyToManyFields, because they're not represented as
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# database columns in this table.
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continue
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# Make the definition (e.g. 'foo VARCHAR(30)') for this field.
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field_output = [style.SQL_FIELD(qn(f.column)),
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style.SQL_COLTYPE(col_type)]
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# Oracle treats the empty string ('') as null, so coerce the null
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# option whenever '' is a possible value.
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null = f.null
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if (f.empty_strings_allowed and not f.primary_key and
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self.connection.features.interprets_empty_strings_as_nulls):
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null = True
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if not null:
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field_output.append(style.SQL_KEYWORD('NOT NULL'))
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if f.primary_key:
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field_output.append(style.SQL_KEYWORD('PRIMARY KEY'))
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elif f.unique:
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field_output.append(style.SQL_KEYWORD('UNIQUE'))
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if tablespace and f.unique:
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# We must specify the index tablespace inline, because we
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# won't be generating a CREATE INDEX statement for this field.
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tablespace_sql = self.connection.ops.tablespace_sql(
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tablespace, inline=True)
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if tablespace_sql:
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field_output.append(tablespace_sql)
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if f.rel and f.db_constraint:
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ref_output, pending = self.sql_for_inline_foreign_key_references(
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model, f, known_models, style)
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if pending:
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pending_references.setdefault(f.rel.to, []).append(
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(model, f))
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else:
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field_output.extend(ref_output)
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if col_type_suffix:
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field_output.append(style.SQL_KEYWORD(col_type_suffix))
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table_output.append(' '.join(field_output))
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for field_constraints in opts.unique_together:
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table_output.append(style.SQL_KEYWORD('UNIQUE') + ' (%s)' %
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", ".join(
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[style.SQL_FIELD(qn(opts.get_field(f).column))
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for f in field_constraints]))
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full_statement = [style.SQL_KEYWORD('CREATE TABLE') + ' ' +
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style.SQL_TABLE(qn(opts.db_table)) + ' (']
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for i, line in enumerate(table_output): # Combine and add commas.
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full_statement.append(
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' %s%s' % (line, ',' if i < len(table_output) - 1 else ''))
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full_statement.append(')')
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if opts.db_tablespace:
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tablespace_sql = self.connection.ops.tablespace_sql(
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opts.db_tablespace)
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if tablespace_sql:
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full_statement.append(tablespace_sql)
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full_statement.append(';')
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final_output.append('\n'.join(full_statement))
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if opts.has_auto_field:
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# Add any extra SQL needed to support auto-incrementing primary
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# keys.
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auto_column = opts.auto_field.db_column or opts.auto_field.name
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autoinc_sql = self.connection.ops.autoinc_sql(opts.db_table,
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auto_column)
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if autoinc_sql:
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for stmt in autoinc_sql:
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final_output.append(stmt)
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return final_output, pending_references
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def sql_for_inline_foreign_key_references(self, model, field, known_models, style):
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"""
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Return the SQL snippet defining the foreign key reference for a field.
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"""
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qn = self.connection.ops.quote_name
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rel_to = field.rel.to
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if rel_to in known_models or rel_to == model:
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output = [style.SQL_KEYWORD('REFERENCES') + ' ' +
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style.SQL_TABLE(qn(rel_to._meta.db_table)) + ' (' +
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style.SQL_FIELD(qn(rel_to._meta.get_field(
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field.rel.field_name).column)) + ')' +
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self.connection.ops.deferrable_sql()
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]
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pending = False
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else:
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# We haven't yet created the table to which this field
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# is related, so save it for later.
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output = []
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pending = True
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return output, pending
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def sql_for_pending_references(self, model, style, pending_references):
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"""
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Returns any ALTER TABLE statements to add constraints after the fact.
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"""
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opts = model._meta
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if not opts.managed or opts.swapped:
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return []
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qn = self.connection.ops.quote_name
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final_output = []
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if model in pending_references:
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for rel_class, f in pending_references[model]:
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rel_opts = rel_class._meta
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r_table = rel_opts.db_table
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r_col = f.column
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table = opts.db_table
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col = opts.get_field(f.rel.field_name).column
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# For MySQL, r_name must be unique in the first 64 characters.
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# So we are careful with character usage here.
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r_name = '%s_refs_%s_%s' % (
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r_col, col, self._digest(r_table, table))
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final_output.append(style.SQL_KEYWORD('ALTER TABLE') +
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' %s ADD CONSTRAINT %s FOREIGN KEY (%s) REFERENCES %s (%s)%s;' %
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(qn(r_table), qn(truncate_name(
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r_name, self.connection.ops.max_name_length())),
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qn(r_col), qn(table), qn(col),
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self.connection.ops.deferrable_sql()))
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del pending_references[model]
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return final_output
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def sql_indexes_for_model(self, model, style):
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"""
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Returns the CREATE INDEX SQL statements for a single model.
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"""
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warnings.warn("DatabaseCreation.sql_indexes_for_model is deprecated, "
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"use the equivalent method of the schema editor instead.",
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RemovedInDjango20Warning)
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if not model._meta.managed or model._meta.proxy or model._meta.swapped:
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return []
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output = []
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for f in model._meta.local_fields:
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output.extend(self.sql_indexes_for_field(model, f, style))
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for fs in model._meta.index_together:
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fields = [model._meta.get_field(f) for f in fs]
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output.extend(self.sql_indexes_for_fields(model, fields, style))
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return output
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def sql_indexes_for_field(self, model, f, style):
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"""
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Return the CREATE INDEX SQL statements for a single model field.
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"""
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if f.db_index and not f.unique:
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return self.sql_indexes_for_fields(model, [f], style)
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else:
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return []
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def sql_indexes_for_fields(self, model, fields, style):
|
||||
if len(fields) == 1 and fields[0].db_tablespace:
|
||||
tablespace_sql = self.connection.ops.tablespace_sql(fields[0].db_tablespace)
|
||||
elif model._meta.db_tablespace:
|
||||
tablespace_sql = self.connection.ops.tablespace_sql(model._meta.db_tablespace)
|
||||
else:
|
||||
tablespace_sql = ""
|
||||
if tablespace_sql:
|
||||
tablespace_sql = " " + tablespace_sql
|
||||
|
||||
field_names = []
|
||||
qn = self.connection.ops.quote_name
|
||||
for f in fields:
|
||||
field_names.append(style.SQL_FIELD(qn(f.column)))
|
||||
|
||||
index_name = "%s_%s" % (model._meta.db_table, self._digest([f.name for f in fields]))
|
||||
|
||||
return [
|
||||
style.SQL_KEYWORD("CREATE INDEX") + " " +
|
||||
style.SQL_TABLE(qn(truncate_name(index_name, self.connection.ops.max_name_length()))) + " " +
|
||||
style.SQL_KEYWORD("ON") + " " +
|
||||
style.SQL_TABLE(qn(model._meta.db_table)) + " " +
|
||||
"(%s)" % style.SQL_FIELD(", ".join(field_names)) +
|
||||
"%s;" % tablespace_sql,
|
||||
]
|
||||
|
||||
def sql_destroy_model(self, model, references_to_delete, style):
|
||||
"""
|
||||
Return the DROP TABLE and restraint dropping statements for a single
|
||||
model.
|
||||
"""
|
||||
if not model._meta.managed or model._meta.proxy or model._meta.swapped:
|
||||
return []
|
||||
# Drop the table now
|
||||
qn = self.connection.ops.quote_name
|
||||
output = ['%s %s;' % (style.SQL_KEYWORD('DROP TABLE'),
|
||||
style.SQL_TABLE(qn(model._meta.db_table)))]
|
||||
if model in references_to_delete:
|
||||
output.extend(self.sql_remove_table_constraints(
|
||||
model, references_to_delete, style))
|
||||
if model._meta.has_auto_field:
|
||||
ds = self.connection.ops.drop_sequence_sql(model._meta.db_table)
|
||||
if ds:
|
||||
output.append(ds)
|
||||
return output
|
||||
|
||||
def sql_remove_table_constraints(self, model, references_to_delete, style):
|
||||
if not model._meta.managed or model._meta.proxy or model._meta.swapped:
|
||||
return []
|
||||
output = []
|
||||
qn = self.connection.ops.quote_name
|
||||
for rel_class, f in references_to_delete[model]:
|
||||
table = rel_class._meta.db_table
|
||||
col = f.column
|
||||
r_table = model._meta.db_table
|
||||
r_col = model._meta.get_field(f.rel.field_name).column
|
||||
r_name = '%s_refs_%s_%s' % (
|
||||
col, r_col, self._digest(table, r_table))
|
||||
output.append('%s %s %s %s;' % (
|
||||
style.SQL_KEYWORD('ALTER TABLE'),
|
||||
style.SQL_TABLE(qn(table)),
|
||||
style.SQL_KEYWORD(self.connection.ops.drop_foreignkey_sql()),
|
||||
style.SQL_FIELD(qn(truncate_name(
|
||||
r_name, self.connection.ops.max_name_length())))
|
||||
))
|
||||
del references_to_delete[model]
|
||||
return output
|
||||
|
||||
def sql_destroy_indexes_for_model(self, model, style):
|
||||
"""
|
||||
Returns the DROP INDEX SQL statements for a single model.
|
||||
"""
|
||||
if not model._meta.managed or model._meta.proxy or model._meta.swapped:
|
||||
return []
|
||||
output = []
|
||||
for f in model._meta.local_fields:
|
||||
output.extend(self.sql_destroy_indexes_for_field(model, f, style))
|
||||
for fs in model._meta.index_together:
|
||||
fields = [model._meta.get_field(f) for f in fs]
|
||||
output.extend(self.sql_destroy_indexes_for_fields(model, fields, style))
|
||||
return output
|
||||
|
||||
def sql_destroy_indexes_for_field(self, model, f, style):
|
||||
"""
|
||||
Return the DROP INDEX SQL statements for a single model field.
|
||||
"""
|
||||
if f.db_index and not f.unique:
|
||||
return self.sql_destroy_indexes_for_fields(model, [f], style)
|
||||
else:
|
||||
return []
|
||||
|
||||
def sql_destroy_indexes_for_fields(self, model, fields, style):
|
||||
if len(fields) == 1 and fields[0].db_tablespace:
|
||||
tablespace_sql = self.connection.ops.tablespace_sql(fields[0].db_tablespace)
|
||||
elif model._meta.db_tablespace:
|
||||
tablespace_sql = self.connection.ops.tablespace_sql(model._meta.db_tablespace)
|
||||
else:
|
||||
tablespace_sql = ""
|
||||
if tablespace_sql:
|
||||
tablespace_sql = " " + tablespace_sql
|
||||
|
||||
field_names = []
|
||||
qn = self.connection.ops.quote_name
|
||||
for f in fields:
|
||||
field_names.append(style.SQL_FIELD(qn(f.column)))
|
||||
|
||||
index_name = "%s_%s" % (model._meta.db_table, self._digest([f.name for f in fields]))
|
||||
|
||||
return [
|
||||
style.SQL_KEYWORD("DROP INDEX") + " " +
|
||||
style.SQL_TABLE(qn(truncate_name(index_name, self.connection.ops.max_name_length()))) + " " +
|
||||
";",
|
||||
]
|
||||
|
||||
def create_test_db(self, verbosity=1, autoclobber=False, serialize=True, keepdb=False):
|
||||
"""
|
||||
Creates a test database, prompting the user for confirmation if the
|
||||
|
||||
@@ -11,33 +11,3 @@ class DatabaseCreation(BaseDatabaseCreation):
|
||||
if test_settings['COLLATION']:
|
||||
suffix.append('COLLATE %s' % test_settings['COLLATION'])
|
||||
return ' '.join(suffix)
|
||||
|
||||
def sql_for_inline_foreign_key_references(self, model, field, known_models, style):
|
||||
"All inline references are pending under MySQL"
|
||||
return [], True
|
||||
|
||||
def sql_destroy_indexes_for_fields(self, model, fields, style):
|
||||
if len(fields) == 1 and fields[0].db_tablespace:
|
||||
tablespace_sql = self.connection.ops.tablespace_sql(fields[0].db_tablespace)
|
||||
elif model._meta.db_tablespace:
|
||||
tablespace_sql = self.connection.ops.tablespace_sql(model._meta.db_tablespace)
|
||||
else:
|
||||
tablespace_sql = ""
|
||||
if tablespace_sql:
|
||||
tablespace_sql = " " + tablespace_sql
|
||||
|
||||
field_names = []
|
||||
qn = self.connection.ops.quote_name
|
||||
for f in fields:
|
||||
field_names.append(style.SQL_FIELD(qn(f.column)))
|
||||
|
||||
index_name = "%s_%s" % (model._meta.db_table, self._digest([f.name for f in fields]))
|
||||
|
||||
from ..utils import truncate_name
|
||||
|
||||
return [
|
||||
style.SQL_KEYWORD("DROP INDEX") + " " +
|
||||
style.SQL_TABLE(qn(truncate_name(index_name, self.connection.ops.max_name_length()))) + " " +
|
||||
style.SQL_KEYWORD("ON") + " " +
|
||||
style.SQL_TABLE(qn(model._meta.db_table)) + ";",
|
||||
]
|
||||
|
||||
@@ -1,5 +1,4 @@
|
||||
from django.db.backends.base.creation import BaseDatabaseCreation
|
||||
from django.db.backends.utils import truncate_name
|
||||
|
||||
|
||||
class DatabaseCreation(BaseDatabaseCreation):
|
||||
@@ -12,40 +11,3 @@ class DatabaseCreation(BaseDatabaseCreation):
|
||||
if test_settings['CHARSET']:
|
||||
return "WITH ENCODING '%s'" % test_settings['CHARSET']
|
||||
return ''
|
||||
|
||||
def sql_indexes_for_field(self, model, f, style):
|
||||
output = []
|
||||
db_type = f.db_type(connection=self.connection)
|
||||
if db_type is not None and (f.db_index or f.unique):
|
||||
qn = self.connection.ops.quote_name
|
||||
db_table = model._meta.db_table
|
||||
tablespace = f.db_tablespace or model._meta.db_tablespace
|
||||
if tablespace:
|
||||
tablespace_sql = self.connection.ops.tablespace_sql(tablespace)
|
||||
if tablespace_sql:
|
||||
tablespace_sql = ' ' + tablespace_sql
|
||||
else:
|
||||
tablespace_sql = ''
|
||||
|
||||
def get_index_sql(index_name, opclass=''):
|
||||
return (style.SQL_KEYWORD('CREATE INDEX') + ' ' +
|
||||
style.SQL_TABLE(qn(truncate_name(index_name, self.connection.ops.max_name_length()))) + ' ' +
|
||||
style.SQL_KEYWORD('ON') + ' ' +
|
||||
style.SQL_TABLE(qn(db_table)) + ' ' +
|
||||
"(%s%s)" % (style.SQL_FIELD(qn(f.column)), opclass) +
|
||||
"%s;" % tablespace_sql)
|
||||
|
||||
if not f.unique:
|
||||
output = [get_index_sql('%s_%s' % (db_table, f.column))]
|
||||
|
||||
# Fields with database column types of `varchar` and `text` need
|
||||
# a second index that specifies their operator class, which is
|
||||
# needed when performing correct LIKE queries outside the
|
||||
# C locale. See #12234.
|
||||
if db_type.startswith('varchar'):
|
||||
output.append(get_index_sql('%s_%s_like' % (db_table, f.column),
|
||||
' varchar_pattern_ops'))
|
||||
elif db_type.startswith('text'):
|
||||
output.append(get_index_sql('%s_%s_like' % (db_table, f.column),
|
||||
' text_pattern_ops'))
|
||||
return output
|
||||
|
||||
@@ -8,14 +8,6 @@ from django.utils.six.moves import input
|
||||
|
||||
class DatabaseCreation(BaseDatabaseCreation):
|
||||
|
||||
def sql_for_pending_references(self, model, style, pending_references):
|
||||
"SQLite3 doesn't support constraints"
|
||||
return []
|
||||
|
||||
def sql_remove_table_constraints(self, model, references_to_delete, style):
|
||||
"SQLite3 doesn't support constraints"
|
||||
return []
|
||||
|
||||
def _get_test_db_name(self):
|
||||
test_database_name = self.connection.settings_dict['TEST']['NAME']
|
||||
if test_database_name and test_database_name != ':memory:':
|
||||
|
||||
@@ -1,48 +1,11 @@
|
||||
from unittest import skipUnless
|
||||
|
||||
from django.core.management.color import no_style
|
||||
from django.db import connection
|
||||
from django.test import TestCase, ignore_warnings
|
||||
from django.utils.deprecation import RemovedInDjango20Warning
|
||||
from django.test import TestCase
|
||||
|
||||
from .models import Article, ArticleTranslation, IndexTogetherSingleList
|
||||
|
||||
|
||||
@ignore_warnings(category=RemovedInDjango20Warning)
|
||||
class CreationIndexesTests(TestCase):
|
||||
"""
|
||||
Test index handling by the to-be-deprecated connection.creation interface.
|
||||
"""
|
||||
def test_index_together(self):
|
||||
index_sql = connection.creation.sql_indexes_for_model(Article, no_style())
|
||||
self.assertEqual(len(index_sql), 1)
|
||||
|
||||
def test_index_together_single_list(self):
|
||||
# Test for using index_together with a single list (#22172)
|
||||
index_sql = connection.creation.sql_indexes_for_model(IndexTogetherSingleList, no_style())
|
||||
self.assertEqual(len(index_sql), 1)
|
||||
|
||||
@skipUnless(connection.vendor == 'postgresql',
|
||||
"This is a postgresql-specific issue")
|
||||
def test_postgresql_text_indexes(self):
|
||||
"""Test creation of PostgreSQL-specific text indexes (#12234)"""
|
||||
from .models import IndexedArticle
|
||||
index_sql = connection.creation.sql_indexes_for_model(IndexedArticle, no_style())
|
||||
self.assertEqual(len(index_sql), 5)
|
||||
self.assertIn('("headline" varchar_pattern_ops)', index_sql[1])
|
||||
self.assertIn('("body" text_pattern_ops)', index_sql[3])
|
||||
# unique=True and db_index=True should only create the varchar-specific
|
||||
# index (#19441).
|
||||
self.assertIn('("slug" varchar_pattern_ops)', index_sql[4])
|
||||
|
||||
@skipUnless(connection.vendor == 'postgresql',
|
||||
"This is a postgresql-specific issue")
|
||||
def test_postgresql_virtual_relation_indexes(self):
|
||||
"""Test indexes are not created for related objects"""
|
||||
index_sql = connection.creation.sql_indexes_for_model(Article, no_style())
|
||||
self.assertEqual(len(index_sql), 1)
|
||||
|
||||
|
||||
class SchemaIndexesTests(TestCase):
|
||||
"""
|
||||
Test index handling by the db.backends.schema infrastructure.
|
||||
|
||||
Reference in New Issue
Block a user