Noticed one unpleasant thing. Suppose there is a model that linked the other two have the same ForeignKey.
class File(models.Model):
#some stuff
pass
class ServerFile(models.Model):
file = models.ForeignKey('File')
#some stuff
class UserFile(models.Model):
file = models.ForeignKey('File')
#some stuff
class Link(models.Model):
user_file = models.ForeignKey('UserFile')
server_file = models.ForeignKey('ServerFile')
#some stuff
Accordingly, when included list_select_related, get an additional join File
SELECT
`fff_link`.`id`,
`fff_link`.`user_file_id`,
`fff_link`.`server_file_id`,
`fff_userfile`.`id`,
`fff_userfile`.`file_id`,
`fff_file`.`id`,`fff_serverfile`.`id`,
`fff_serverfile`.`file_id`,
T5.`id`FROM `fff_link`
INNER JOIN `fff_userfile`
ON (`fff_link`.`user_file_id` = `fff_userfile`.`id`)
INNER JOIN `fff_file`
ON (`fff_userfile`.`file_id` = `fff_file`.`id`)INNER JOIN `fff_serverfile`
ON (`fff_link`.`server_file_id` = `fff_serverfile`.`id`)
INNER JOIN `fff_file` T5
ON (`fff_serverfile`.`file_id` = T5.`id`)Can anyone come across? How to treat?
The rejection of the intersection is not an option, of course
