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Added MySQLOperations.geom_func_prefix to simplify.

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This commit is contained in:
Sergey Fedoseev 2016-10-24 21:12:47 +06:00 committed by Tim Graham
parent 6b5106b1ce
commit 7d51e406bd
1 changed files with 8 additions and 22 deletions
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30
django/contrib/gis/db/backends/mysql/operations.py
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@ -14,6 +14,10 @@ class MySQLOperations(BaseSpatialOperations, DatabaseOperations):
Adapter = WKTAdapter
@cached_property
def geom_func_prefix(self):
return '' if self.is_mysql_5_5 else 'ST_'
@cached_property
def is_mysql_5_5(self):
return self.connection.mysql_version < (5, 6, 1)
@ -28,21 +32,15 @@ class MySQLOperations(BaseSpatialOperations, DatabaseOperations):
@cached_property
def select(self):
if self.is_mysql_5_5:
return 'AsText(%s)'
return 'ST_AsText(%s)'
return self.geom_func_prefix + 'AsText(%s)'
@cached_property
def from_wkb(self):
if self.is_mysql_5_5:
return 'GeomFromWKB'
return 'ST_GeomFromWKB'
return self.geom_func_prefix + 'GeomFromWKB'
@cached_property
def from_text(self):
if self.is_mysql_5_5:
return 'GeomFromText'
return 'ST_GeomFromText'
return self.geom_func_prefix + 'GeomFromText'
@cached_property
def gis_operators(self):
@ -64,19 +62,7 @@ class MySQLOperations(BaseSpatialOperations, DatabaseOperations):
@cached_property
def function_names(self):
return {
'Area': 'Area' if self.is_mysql_5_5 else 'ST_Area',
'Centroid': 'Centroid' if self.is_mysql_5_5 else 'ST_Centroid',
'Difference': 'ST_Difference',
'Distance': 'ST_Distance',
'Envelope': 'Envelope' if self.is_mysql_5_5 else 'ST_Envelope',
'Intersection': 'ST_Intersection',
'Length': 'GLength' if self.is_mysql_5_5 else 'ST_Length',
'NumGeometries': 'NumGeometries' if self.is_mysql_5_5 else 'ST_NumGeometries',
'NumPoints': 'NumPoints' if self.is_mysql_5_5 else 'ST_NumPoints',
'SymDifference': 'ST_SymDifference',
'Union': 'ST_Union',
}
return {'Length': 'GLength'} if self.is_mysql_5_5 else {}
disallowed_aggregates = (
aggregates.Collect, aggregates.Extent, aggregates.Extent3D,