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Commit
d823c2ba
authored
Feb 02, 2013
by
Őry Máté
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school: new simple school model
ref
#30
parent
c0e5d189
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Showing
3 changed files
with
341 additions
and
39 deletions
+341
-39
school/migrations/0002_auto__del_entity__del_lessonclass__del_lesson__del_person__del_mark__d.py
+134
-0
school/migrations/0003_auto__add_course__add_semester__add_person__add_group__add_unique_grou.py
+166
-0
school/models.py
+41
-39
No files found.
school/migrations/0002_auto__del_entity__del_lessonclass__del_lesson__del_person__del_mark__d.py
0 → 100644
View file @
d823c2ba
# -*- coding: utf-8 -*-
import
datetime
from
south.db
import
db
from
south.v2
import
SchemaMigration
from
django.db
import
models
class
Migration
(
SchemaMigration
):
def
forwards
(
self
,
orm
):
# Deleting model 'Entity'
db
.
delete_table
(
'school_entity'
)
# Deleting model 'LessonClass'
db
.
delete_table
(
'school_lessonclass'
)
# Deleting model 'Lesson'
db
.
delete_table
(
'school_lesson'
)
# Deleting model 'Person'
db
.
delete_table
(
'school_person'
)
# Deleting model 'Mark'
db
.
delete_table
(
'school_mark'
)
# Deleting model 'Course'
db
.
delete_table
(
'school_course'
)
# Deleting model 'Semester'
db
.
delete_table
(
'school_semester'
)
# Deleting model 'Event'
db
.
delete_table
(
'school_event'
)
# Deleting model 'Attendance'
db
.
delete_table
(
'school_attendance'
)
# Deleting model 'Group'
db
.
delete_table
(
'school_group'
)
def
backwards
(
self
,
orm
):
# Adding model 'Entity'
db
.
create_table
(
'school_entity'
,
(
(
'id'
,
self
.
gf
(
'django.db.models.fields.AutoField'
)(
primary_key
=
True
)),
(
'parent'
,
self
.
gf
(
'django.db.models.fields.related.ForeignKey'
)(
to
=
orm
[
'school.Group'
])),
(
'name'
,
self
.
gf
(
'django.db.models.fields.CharField'
)(
max_length
=
100
)),
))
db
.
send_create_signal
(
'school'
,
[
'Entity'
])
# Adding model 'LessonClass'
db
.
create_table
(
'school_lessonclass'
,
(
(
'group'
,
self
.
gf
(
'django.db.models.fields.related.ForeignKey'
)(
to
=
orm
[
'school.Group'
])),
(
'id'
,
self
.
gf
(
'django.db.models.fields.AutoField'
)(
primary_key
=
True
)),
))
db
.
send_create_signal
(
'school'
,
[
'LessonClass'
])
# Adding model 'Lesson'
db
.
create_table
(
'school_lesson'
,
(
(
'group'
,
self
.
gf
(
'django.db.models.fields.related.ForeignKey'
)(
to
=
orm
[
'school.Group'
])),
(
'id'
,
self
.
gf
(
'django.db.models.fields.AutoField'
)(
primary_key
=
True
)),
(
'lesson_class'
,
self
.
gf
(
'django.db.models.fields.related.ForeignKey'
)(
to
=
orm
[
'school.LessonClass'
])),
))
db
.
send_create_signal
(
'school'
,
[
'Lesson'
])
# Adding model 'Person'
db
.
create_table
(
'school_person'
,
(
(
'id'
,
self
.
gf
(
'django.db.models.fields.AutoField'
)(
primary_key
=
True
)),
(
'language'
,
self
.
gf
(
'django.db.models.fields.CharField'
)(
default
=
'hu'
,
max_length
=
6
)),
(
'user'
,
self
.
gf
(
'django.db.models.fields.related.ForeignKey'
)(
to
=
orm
[
'auth.User'
],
unique
=
True
)),
))
db
.
send_create_signal
(
'school'
,
[
'Person'
])
# Adding model 'Mark'
db
.
create_table
(
'school_mark'
,
(
(
'modified_by'
,
self
.
gf
(
'django.db.models.fields.related.ForeignKey'
)(
related_name
=
'modified_marks'
,
to
=
orm
[
'school.Person'
])),
(
'value'
,
self
.
gf
(
'django.db.models.fields.CharField'
)(
max_length
=
100
)),
(
'student'
,
self
.
gf
(
'django.db.models.fields.related.ForeignKey'
)(
to
=
orm
[
'school.Person'
])),
(
'created_at'
,
self
.
gf
(
'django.db.models.fields.DateTimeField'
)(
auto_now_add
=
True
,
blank
=
True
)),
(
'modified_at'
,
self
.
gf
(
'django.db.models.fields.DateTimeField'
)(
auto_now
=
True
,
blank
=
True
)),
(
'event'
,
self
.
gf
(
'django.db.models.fields.related.ForeignKey'
)(
to
=
orm
[
'school.Event'
])),
(
'created_by'
,
self
.
gf
(
'django.db.models.fields.related.ForeignKey'
)(
related_name
=
'created_marks'
,
to
=
orm
[
'school.Person'
])),
(
'id'
,
self
.
gf
(
'django.db.models.fields.AutoField'
)(
primary_key
=
True
)),
))
db
.
send_create_signal
(
'school'
,
[
'Mark'
])
# Adding model 'Course'
db
.
create_table
(
'school_course'
,
(
(
'entity_ptr'
,
self
.
gf
(
'django.db.models.fields.related.OneToOneField'
)(
to
=
orm
[
'school.Entity'
],
unique
=
True
,
primary_key
=
True
)),
))
db
.
send_create_signal
(
'school'
,
[
'Course'
])
# Adding model 'Semester'
db
.
create_table
(
'school_semester'
,
(
(
'entity_ptr'
,
self
.
gf
(
'django.db.models.fields.related.OneToOneField'
)(
to
=
orm
[
'school.Entity'
],
unique
=
True
,
primary_key
=
True
)),
(
'start'
,
self
.
gf
(
'django.db.models.fields.DateField'
)()),
(
'end'
,
self
.
gf
(
'django.db.models.fields.DateField'
)()),
))
db
.
send_create_signal
(
'school'
,
[
'Semester'
])
# Adding model 'Event'
db
.
create_table
(
'school_event'
,
(
(
'type'
,
self
.
gf
(
'django.db.models.fields.CharField'
)(
max_length
=
5
)),
(
'group'
,
self
.
gf
(
'django.db.models.fields.related.ForeignKey'
)(
to
=
orm
[
'school.Group'
])),
(
'id'
,
self
.
gf
(
'django.db.models.fields.AutoField'
)(
primary_key
=
True
)),
(
'title'
,
self
.
gf
(
'django.db.models.fields.CharField'
)(
max_length
=
100
)),
))
db
.
send_create_signal
(
'school'
,
[
'Event'
])
# Adding model 'Attendance'
db
.
create_table
(
'school_attendance'
,
(
(
'modified_by'
,
self
.
gf
(
'django.db.models.fields.related.ForeignKey'
)(
related_name
=
'modified_attendances'
,
to
=
orm
[
'school.Person'
])),
(
'modified_at'
,
self
.
gf
(
'django.db.models.fields.DateTimeField'
)(
auto_now
=
True
,
blank
=
True
)),
(
'student'
,
self
.
gf
(
'django.db.models.fields.related.ForeignKey'
)(
to
=
orm
[
'school.Person'
])),
(
'lesson'
,
self
.
gf
(
'django.db.models.fields.related.ForeignKey'
)(
to
=
orm
[
'school.Lesson'
])),
(
'id'
,
self
.
gf
(
'django.db.models.fields.AutoField'
)(
primary_key
=
True
)),
(
'present'
,
self
.
gf
(
'django.db.models.fields.NullBooleanField'
)(
null
=
True
,
blank
=
True
)),
))
db
.
send_create_signal
(
'school'
,
[
'Attendance'
])
# Adding model 'Group'
db
.
create_table
(
'school_group'
,
(
(
'entity_ptr'
,
self
.
gf
(
'django.db.models.fields.related.OneToOneField'
)(
to
=
orm
[
'school.Entity'
],
unique
=
True
,
primary_key
=
True
)),
(
'recursive_unique'
,
self
.
gf
(
'django.db.models.fields.BooleanField'
)(
default
=
False
)),
))
db
.
send_create_signal
(
'school'
,
[
'Group'
])
models
=
{
}
complete_apps
=
[
'school'
]
\ No newline at end of file
school/migrations/0003_auto__add_course__add_semester__add_person__add_group__add_unique_grou.py
0 → 100644
View file @
d823c2ba
# -*- coding: utf-8 -*-
import
datetime
from
south.db
import
db
from
south.v2
import
SchemaMigration
from
django.db
import
models
class
Migration
(
SchemaMigration
):
def
forwards
(
self
,
orm
):
# Adding model 'Course'
db
.
create_table
(
'school_course'
,
(
(
'id'
,
self
.
gf
(
'django.db.models.fields.AutoField'
)(
primary_key
=
True
)),
(
'code'
,
self
.
gf
(
'django.db.models.fields.CharField'
)(
unique
=
True
,
max_length
=
10
)),
(
'name'
,
self
.
gf
(
'django.db.models.fields.CharField'
)(
max_length
=
80
,
null
=
True
,
blank
=
True
)),
(
'default_group'
,
self
.
gf
(
'django.db.models.fields.related.ForeignKey'
)(
blank
=
True
,
related_name
=
'default_group_of'
,
null
=
True
,
to
=
orm
[
'school.Group'
])),
))
db
.
send_create_signal
(
'school'
,
[
'Course'
])
# Adding M2M table for field owners on 'Course'
db
.
create_table
(
'school_course_owners'
,
(
(
'id'
,
models
.
AutoField
(
verbose_name
=
'ID'
,
primary_key
=
True
,
auto_created
=
True
)),
(
'course'
,
models
.
ForeignKey
(
orm
[
'school.course'
],
null
=
False
)),
(
'user'
,
models
.
ForeignKey
(
orm
[
'auth.user'
],
null
=
False
))
))
db
.
create_unique
(
'school_course_owners'
,
[
'course_id'
,
'user_id'
])
# Adding model 'Semester'
db
.
create_table
(
'school_semester'
,
(
(
'id'
,
self
.
gf
(
'django.db.models.fields.AutoField'
)(
primary_key
=
True
)),
(
'start'
,
self
.
gf
(
'django.db.models.fields.DateField'
)()),
(
'end'
,
self
.
gf
(
'django.db.models.fields.DateField'
)()),
))
db
.
send_create_signal
(
'school'
,
[
'Semester'
])
# Adding model 'Person'
db
.
create_table
(
'school_person'
,
(
(
'id'
,
self
.
gf
(
'django.db.models.fields.AutoField'
)(
primary_key
=
True
)),
(
'user'
,
self
.
gf
(
'django.db.models.fields.related.ForeignKey'
)(
to
=
orm
[
'auth.User'
],
unique
=
True
)),
))
db
.
send_create_signal
(
'school'
,
[
'Person'
])
# Adding model 'Group'
db
.
create_table
(
'school_group'
,
(
(
'id'
,
self
.
gf
(
'django.db.models.fields.AutoField'
)(
primary_key
=
True
)),
(
'name'
,
self
.
gf
(
'django.db.models.fields.CharField'
)(
unique
=
True
,
max_length
=
80
)),
(
'course'
,
self
.
gf
(
'django.db.models.fields.related.ForeignKey'
)(
to
=
orm
[
'school.Course'
],
null
=
True
,
blank
=
True
)),
(
'semester'
,
self
.
gf
(
'django.db.models.fields.related.ForeignKey'
)(
to
=
orm
[
'school.Semester'
])),
))
db
.
send_create_signal
(
'school'
,
[
'Group'
])
# Adding M2M table for field owners on 'Group'
db
.
create_table
(
'school_group_owners'
,
(
(
'id'
,
models
.
AutoField
(
verbose_name
=
'ID'
,
primary_key
=
True
,
auto_created
=
True
)),
(
'group'
,
models
.
ForeignKey
(
orm
[
'school.group'
],
null
=
False
)),
(
'user'
,
models
.
ForeignKey
(
orm
[
'auth.user'
],
null
=
False
))
))
db
.
create_unique
(
'school_group_owners'
,
[
'group_id'
,
'user_id'
])
# Adding M2M table for field members on 'Group'
db
.
create_table
(
'school_group_members'
,
(
(
'id'
,
models
.
AutoField
(
verbose_name
=
'ID'
,
primary_key
=
True
,
auto_created
=
True
)),
(
'group'
,
models
.
ForeignKey
(
orm
[
'school.group'
],
null
=
False
)),
(
'user'
,
models
.
ForeignKey
(
orm
[
'auth.user'
],
null
=
False
))
))
db
.
create_unique
(
'school_group_members'
,
[
'group_id'
,
'user_id'
])
# Adding unique constraint on 'Group', fields ['name', 'course', 'semester']
db
.
create_unique
(
'school_group'
,
[
'name'
,
'course_id'
,
'semester_id'
])
def
backwards
(
self
,
orm
):
# Removing unique constraint on 'Group', fields ['name', 'course', 'semester']
db
.
delete_unique
(
'school_group'
,
[
'name'
,
'course_id'
,
'semester_id'
])
# Deleting model 'Course'
db
.
delete_table
(
'school_course'
)
# Removing M2M table for field owners on 'Course'
db
.
delete_table
(
'school_course_owners'
)
# Deleting model 'Semester'
db
.
delete_table
(
'school_semester'
)
# Deleting model 'Person'
db
.
delete_table
(
'school_person'
)
# Deleting model 'Group'
db
.
delete_table
(
'school_group'
)
# Removing M2M table for field owners on 'Group'
db
.
delete_table
(
'school_group_owners'
)
# Removing M2M table for field members on 'Group'
db
.
delete_table
(
'school_group_members'
)
models
=
{
'auth.group'
:
{
'Meta'
:
{
'object_name'
:
'Group'
},
'id'
:
(
'django.db.models.fields.AutoField'
,
[],
{
'primary_key'
:
'True'
}),
'name'
:
(
'django.db.models.fields.CharField'
,
[],
{
'unique'
:
'True'
,
'max_length'
:
'80'
}),
'permissions'
:
(
'django.db.models.fields.related.ManyToManyField'
,
[],
{
'to'
:
"orm['auth.Permission']"
,
'symmetrical'
:
'False'
,
'blank'
:
'True'
})
},
'auth.permission'
:
{
'Meta'
:
{
'ordering'
:
"('content_type__app_label', 'content_type__model', 'codename')"
,
'unique_together'
:
"(('content_type', 'codename'),)"
,
'object_name'
:
'Permission'
},
'codename'
:
(
'django.db.models.fields.CharField'
,
[],
{
'max_length'
:
'100'
}),
'content_type'
:
(
'django.db.models.fields.related.ForeignKey'
,
[],
{
'to'
:
"orm['contenttypes.ContentType']"
}),
'id'
:
(
'django.db.models.fields.AutoField'
,
[],
{
'primary_key'
:
'True'
}),
'name'
:
(
'django.db.models.fields.CharField'
,
[],
{
'max_length'
:
'50'
})
},
'auth.user'
:
{
'Meta'
:
{
'object_name'
:
'User'
},
'date_joined'
:
(
'django.db.models.fields.DateTimeField'
,
[],
{
'default'
:
'datetime.datetime.now'
}),
'email'
:
(
'django.db.models.fields.EmailField'
,
[],
{
'max_length'
:
'75'
,
'blank'
:
'True'
}),
'first_name'
:
(
'django.db.models.fields.CharField'
,
[],
{
'max_length'
:
'30'
,
'blank'
:
'True'
}),
'groups'
:
(
'django.db.models.fields.related.ManyToManyField'
,
[],
{
'to'
:
"orm['auth.Group']"
,
'symmetrical'
:
'False'
,
'blank'
:
'True'
}),
'id'
:
(
'django.db.models.fields.AutoField'
,
[],
{
'primary_key'
:
'True'
}),
'is_active'
:
(
'django.db.models.fields.BooleanField'
,
[],
{
'default'
:
'True'
}),
'is_staff'
:
(
'django.db.models.fields.BooleanField'
,
[],
{
'default'
:
'False'
}),
'is_superuser'
:
(
'django.db.models.fields.BooleanField'
,
[],
{
'default'
:
'False'
}),
'last_login'
:
(
'django.db.models.fields.DateTimeField'
,
[],
{
'default'
:
'datetime.datetime.now'
}),
'last_name'
:
(
'django.db.models.fields.CharField'
,
[],
{
'max_length'
:
'30'
,
'blank'
:
'True'
}),
'password'
:
(
'django.db.models.fields.CharField'
,
[],
{
'max_length'
:
'128'
}),
'user_permissions'
:
(
'django.db.models.fields.related.ManyToManyField'
,
[],
{
'to'
:
"orm['auth.Permission']"
,
'symmetrical'
:
'False'
,
'blank'
:
'True'
}),
'username'
:
(
'django.db.models.fields.CharField'
,
[],
{
'unique'
:
'True'
,
'max_length'
:
'30'
})
},
'contenttypes.contenttype'
:
{
'Meta'
:
{
'ordering'
:
"('name',)"
,
'unique_together'
:
"(('app_label', 'model'),)"
,
'object_name'
:
'ContentType'
,
'db_table'
:
"'django_content_type'"
},
'app_label'
:
(
'django.db.models.fields.CharField'
,
[],
{
'max_length'
:
'100'
}),
'id'
:
(
'django.db.models.fields.AutoField'
,
[],
{
'primary_key'
:
'True'
}),
'model'
:
(
'django.db.models.fields.CharField'
,
[],
{
'max_length'
:
'100'
}),
'name'
:
(
'django.db.models.fields.CharField'
,
[],
{
'max_length'
:
'100'
})
},
'school.course'
:
{
'Meta'
:
{
'object_name'
:
'Course'
},
'code'
:
(
'django.db.models.fields.CharField'
,
[],
{
'unique'
:
'True'
,
'max_length'
:
'10'
}),
'default_group'
:
(
'django.db.models.fields.related.ForeignKey'
,
[],
{
'blank'
:
'True'
,
'related_name'
:
"'default_group_of'"
,
'null'
:
'True'
,
'to'
:
"orm['school.Group']"
}),
'id'
:
(
'django.db.models.fields.AutoField'
,
[],
{
'primary_key'
:
'True'
}),
'name'
:
(
'django.db.models.fields.CharField'
,
[],
{
'max_length'
:
'80'
,
'null'
:
'True'
,
'blank'
:
'True'
}),
'owners'
:
(
'django.db.models.fields.related.ManyToManyField'
,
[],
{
'symmetrical'
:
'False'
,
'to'
:
"orm['auth.User']"
,
'null'
:
'True'
,
'blank'
:
'True'
})
},
'school.group'
:
{
'Meta'
:
{
'unique_together'
:
"(('name', 'course', 'semester'),)"
,
'object_name'
:
'Group'
},
'course'
:
(
'django.db.models.fields.related.ForeignKey'
,
[],
{
'to'
:
"orm['school.Course']"
,
'null'
:
'True'
,
'blank'
:
'True'
}),
'id'
:
(
'django.db.models.fields.AutoField'
,
[],
{
'primary_key'
:
'True'
}),
'members'
:
(
'django.db.models.fields.related.ManyToManyField'
,
[],
{
'blank'
:
'True'
,
'related_name'
:
"'course_groups'"
,
'null'
:
'True'
,
'symmetrical'
:
'False'
,
'to'
:
"orm['auth.User']"
}),
'name'
:
(
'django.db.models.fields.CharField'
,
[],
{
'unique'
:
'True'
,
'max_length'
:
'80'
}),
'owners'
:
(
'django.db.models.fields.related.ManyToManyField'
,
[],
{
'blank'
:
'True'
,
'related_name'
:
"'owned_groups'"
,
'null'
:
'True'
,
'symmetrical'
:
'False'
,
'to'
:
"orm['auth.User']"
}),
'semester'
:
(
'django.db.models.fields.related.ForeignKey'
,
[],
{
'to'
:
"orm['school.Semester']"
})
},
'school.person'
:
{
'Meta'
:
{
'object_name'
:
'Person'
},
'id'
:
(
'django.db.models.fields.AutoField'
,
[],
{
'primary_key'
:
'True'
}),
'user'
:
(
'django.db.models.fields.related.ForeignKey'
,
[],
{
'to'
:
"orm['auth.User']"
,
'unique'
:
'True'
})
},
'school.semester'
:
{
'Meta'
:
{
'object_name'
:
'Semester'
},
'end'
:
(
'django.db.models.fields.DateField'
,
[],
{}),
'id'
:
(
'django.db.models.fields.AutoField'
,
[],
{
'primary_key'
:
'True'
}),
'start'
:
(
'django.db.models.fields.DateField'
,
[],
{})
}
}
complete_apps
=
[
'school'
]
\ No newline at end of file
school/models.py
View file @
d823c2ba
...
...
@@ -2,63 +2,65 @@ from django.db import models
from
django.utils.translation
import
ugettext_lazy
as
_
from
django.contrib.auth.models
import
User
from
django.db.models.signals
import
post_save
from
django.core.exceptions
import
ValidationError
from
datetime
import
datetime
def
create_user_profile
(
sender
,
instance
,
created
,
**
kwargs
):
if
created
:
try
:
Person
.
objects
.
create
(
user
=
instance
)
except
:
pass
post_save
.
connect
(
create_user_profile
,
sender
=
User
)
LANGS
=
[(
'hu'
,
_
(
'Hungarian'
)),
(
'en_US'
,
_
(
'US English'
))]
class
Person
(
models
.
Model
):
user
=
models
.
ForeignKey
(
User
,
null
=
False
,
blank
=
False
,
unique
=
True
)
language
=
models
.
CharField
(
max_length
=
6
,
choices
=
LANGS
,
default
=
'hu'
,
verbose_name
=
_
(
'Preferred language'
))
def
__unicode__
(
self
):
return
self
.
user
.
__unicode__
()
class
Entity
(
models
.
Model
):
parent
=
models
.
ForeignKey
(
'school.Group'
)
name
=
models
.
CharField
(
max_length
=
100
)
class
Group
(
Entity
):
recursive_unique
=
models
.
BooleanField
()
class
Course
(
models
.
Model
):
code
=
models
.
CharField
(
max_length
=
10
,
unique
=
True
)
name
=
models
.
CharField
(
max_length
=
80
,
null
=
True
,
blank
=
True
)
default_group
=
models
.
ForeignKey
(
'Group'
,
null
=
True
,
blank
=
True
,
related_name
=
'default_group_of'
)
owners
=
models
.
ManyToManyField
(
User
,
blank
=
True
,
null
=
True
)
def
get_or_create_default_group
(
self
):
self
.
default_group
=
Group
(
name
=
self
.
name
,
semester
=
Semester
.
get_current
())
self
.
default_group
.
save
()
def
save
(
self
,
*
args
,
**
kwargs
):
if
self
.
default_group
:
self
.
default_group
.
course
=
self
self
.
default_group
.
save
()
self
.
full_clean
()
super
(
Course
,
self
)
.
save
(
*
args
,
**
kwargs
)
class
Course
(
Entity
):
pass
class
Semester
(
Entity
):
class
Semester
(
models
.
Model
):
start
=
models
.
DateField
()
end
=
models
.
DateField
()
EVENT_CHOICES
=
[(
'free'
,
_
(
'free text'
)),
(
'num'
,
_
(
'number'
)),
(
'int'
,
_
(
'integer'
))]
class
Event
(
models
.
Model
):
title
=
models
.
CharField
(
max_length
=
100
)
group
=
models
.
ForeignKey
(
'school.Group'
)
type
=
models
.
CharField
(
max_length
=
5
,
choices
=
EVENT_CHOICES
)
def
is_on
(
self
,
time
):
return
self
.
start
<=
time
.
date
()
and
self
.
end
>=
time
.
date
()
class
Mark
(
models
.
Model
):
value
=
models
.
CharField
(
max_length
=
100
)
student
=
models
.
ForeignKey
(
'Person'
)
event
=
models
.
ForeignKey
(
'school.Event'
)
created_by
=
models
.
ForeignKey
(
'Person'
,
related_name
=
'created_marks'
)
created_at
=
models
.
DateTimeField
(
auto_now_add
=
True
)
modified_by
=
models
.
ForeignKey
(
'Person'
,
related_name
=
'modified_marks'
)
modified_at
=
models
.
DateTimeField
(
auto_now
=
True
)
@classmethod
def
get_current
(
cls
):
n
=
datetime
.
now
(
)
current
=
[
s
for
s
in
Semester
.
objects
.
all
()
if
s
.
is_on
(
n
)]
try
:
return
current
[
0
]
except
:
raise
ValidationError
(
_
(
'There is no current semester.'
)
)
class
Attendance
(
models
.
Model
):
present
=
models
.
NullBooleanField
()
student
=
models
.
ForeignKey
(
'Person'
)
lesson
=
models
.
ForeignKey
(
'school.Lesson'
)
modified_by
=
models
.
ForeignKey
(
'Person'
,
related_name
=
'modified_attendances'
)
modified_at
=
models
.
DateTimeField
(
auto_now
=
True
)
class
LessonClass
(
models
.
Model
):
group
=
models
.
ForeignKey
(
'school.Group'
)
class
Group
(
models
.
Model
):
name
=
models
.
CharField
(
max_length
=
80
,
unique
=
True
)
course
=
models
.
ForeignKey
(
'Course'
,
null
=
True
,
blank
=
True
)
semester
=
models
.
ForeignKey
(
'Semester'
,
null
=
False
,
blank
=
False
)
owners
=
models
.
ManyToManyField
(
User
,
blank
=
True
,
null
=
True
,
related_name
=
'owned_groups'
)
members
=
models
.
ManyToManyField
(
User
,
blank
=
True
,
null
=
True
,
related_name
=
'course_groups'
)
class
Lesson
(
models
.
Model
):
lesson_class
=
models
.
ForeignKey
(
'school.LessonClass'
)
group
=
models
.
ForeignKey
(
'school.Group'
)
class
Meta
:
unique_together
=
((
'name'
,
'course'
,
'semester'
,
),
)
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