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"""
test autoloaded entities
"""
from sqlalchemy import Table, Column, ForeignKey, MetaData
from elixir import *
from elixir import options
import elixir
def setup_entity_raise(cls):
try:
setup_entities([cls])
except Exception, e:
pass
else:
assert False, "Exception did not occur setting up %s" % cls.__name__
# ------
def setup():
# First create the tables
meta = MetaData('sqlite:///')
person_table = Table('person', meta,
Column('id', Integer, primary_key=True),
Column('father_id', Integer, ForeignKey('person.id')),
Column('name', String(32)))
animal_table = Table('animal', meta,
Column('id', Integer, primary_key=True),
Column('name', String(30)),
Column('owner_id', Integer, ForeignKey('person.id')),
Column('feeder_id', Integer, ForeignKey('person.id')))
category_table = Table('category', meta,
Column('name', String(30), primary_key=True))
person_category_table = Table('person_category', meta,
Column('person_id', Integer, ForeignKey('person.id')),
Column('category_name', String(30), ForeignKey('category.name')))
person_person_table = Table('person_person', meta,
Column('person_id1', Integer, ForeignKey('person.id')),
Column('person_id2', Integer, ForeignKey('person.id')))
meta.create_all()
elixir.options_defaults.update(dict(autoload=True, shortnames=True))
global Person, Animal, Category
#TODO: split these into individual classes for each test.
class Person(Entity):
father = ManyToOne('Person')
children = OneToMany('Person')
pets = OneToMany('Animal', inverse='owner')
animals = OneToMany('Animal', inverse='feeder')
categories = ManyToMany('Category',
tablename='person_category')
appreciate = ManyToMany('Person',
tablename='person_person',
local_side='person_id1')
isappreciatedby = ManyToMany('Person',
tablename='person_person',
local_side='person_id2')
class Animal(Entity):
owner = ManyToOne('Person', colname='owner_id')
feeder = ManyToOne('Person', colname='feeder_id')
class Category(Entity):
persons = ManyToMany('Person',
tablename='person_category')
metadata.bind = meta.bind
setup_all()
def teardown():
cleanup_all()
elixir.options_defaults.update(dict(autoload=False, shortnames=False))
# -----------
class TestAutoload(object):
def setup(self):
create_all()
def teardown(self):
drop_all()
session.clear()
def test_simple(self):
snowball = Animal(name="Snowball II")
slh = Animal(name="Santa's Little Helper")
homer = Person(name="Homer", animals=[snowball, slh], pets=[slh])
lisa = Person(name="Lisa", pets=[snowball])
session.commit()
session.clear()
homer = Person.get_by(name="Homer")
lisa = Person.get_by(name="Lisa")
slh = Animal.get_by(name="Santa's Little Helper")
assert len(homer.animals) == 2
assert homer == lisa.pets[0].feeder
assert homer == slh.owner
def test_selfref(self):
grampa = Person(name="Abe")
homer = Person(name="Homer")
bart = Person(name="Bart")
lisa = Person(name="Lisa")
grampa.children.append(homer)
homer.children.append(bart)
lisa.father = homer
session.commit()
session.clear()
p = Person.get_by(name="Homer")
assert p in p.father.children
assert p.father.name == "Abe"
assert p.father is Person.get_by(name="Abe")
assert p is Person.get_by(name="Lisa").father
def test_m2m(self):
stupid = Category(name="Stupid")
simpson = Category(name="Simpson")
old = Category(name="Old")
grampa = Person(name="Abe", categories=[simpson, old])
homer = Person(name="Homer", categories=[simpson, stupid])
bart = Person(name="Bart")
lisa = Person(name="Lisa")
simpson.persons.extend([bart, lisa])
session.commit()
session.clear()
c = Category.get_by(name="Simpson")
grampa = Person.get_by(name="Abe")
print "Persons in the '%s' category: %s." % (
c.name,
", ".join([p.name for p in c.persons]))
assert len(c.persons) == 4
assert c in grampa.categories
def test_m2m_selfref(self):
barney = Person(name="Barney")
homer = Person(name="Homer", appreciate=[barney])
session.commit()
session.clear()
homer = Person.get_by(name="Homer")
barney = Person.get_by(name="Barney")
assert barney in homer.appreciate
assert homer in barney.isappreciatedby
# overrides tests
def test_override_pk_fails(self):
class Person(Entity):
id = Field(Integer, primary_key=True)
setup_entity_raise(Person)
def test_override_non_pk_fails(self):
class Animal(Entity):
name = Field(String(30))
setup_entity_raise(Animal)
def test_override_pk(self):
class Person(Entity):
using_options(allowcoloverride=True)
id = Field(Integer, primary_key=True)
setup_entities([Person])
def test_override_non_pk(self):
class Animal(Entity):
using_options(allowcoloverride=True)
name = Field(String(30))
setup_entities([Animal])
assert isinstance(Animal.table.columns['name'].type, String)
# ----------------
def test_nopk(self):
metadata.bind = 'sqlite:///'
local_meta = MetaData(metadata.bind)
table = Table('a', local_meta,
Column('id', Integer),
Column('name', String(32)))
local_meta.create_all()
class A(Entity):
using_options(tablename='a', autoload=True)
using_mapper_options(primary_key=['id'])
setup_all()
a1 = A(id=1, name="a1")
session.commit()
session.clear()
res = A.query.all()
assert len(res) == 1
assert res[0].name == "a1"
def test_inheritance(self):
metadata.bind = 'sqlite:///'
local_meta = MetaData(metadata.bind)
table = Table('father', local_meta,
Column('id', Integer, primary_key=True),
Column('row_type', options.POLYMORPHIC_COL_TYPE))
local_meta.create_all()
options_defaults["autoload"] = True
class Father(Entity):
using_options(tablename='father')
class Son(Father):
pass
setup_all()
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