mirror of
https://github.com/sqlalchemy/sqlalchemy.git
synced 2026-05-31 12:58:45 -04:00
Mike Bayer
5ab558004c
such that the Session, cache manager, declarative_base are part of environment, and custom cache code is portable and now within "caching_query.py". This allows the example to be easier to "drop in" to existing projects.
49 lines
1.6 KiB
Python
49 lines
1.6 KiB
Python
"""fixture_data.py
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Installs some sample data. Here we have a handful of postal codes for a few US/
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Canadian cities. Then, 100 Person records are installed, each with a
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randomly selected postal code.
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"""
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from environment import Session, Base
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from model import City, Country, PostalCode, Person, Address
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import random
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def install():
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Base.metadata.create_all(Session().bind)
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data = [
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('Chicago', 'United States', ('60601', '60602', '60603', '60604')),
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('Montreal', 'Canada', ('H2S 3K9', 'H2B 1V4', 'H7G 2T8')),
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('Edmonton', 'Canada', ('T5J 1R9', 'T5J 1Z4', 'T5H 1P6')),
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('New York', 'United States', ('10001', '10002', '10003', '10004', '10005', '10006')),
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('San Francisco', 'United States', ('94102', '94103', '94104', '94105', '94107', '94108'))
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]
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countries = {}
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all_post_codes = []
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for city, country, postcodes in data:
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try:
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country = countries[country]
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except KeyError:
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countries[country] = country = Country(country)
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city = City(city, country)
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pc = [PostalCode(code, city) for code in postcodes]
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Session.add_all(pc)
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all_post_codes.extend(pc)
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for i in xrange(1, 51):
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person = Person(
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"person %.2d" % i,
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Address(
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street="street %.2d" % i,
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postal_code=all_post_codes[random.randint(0, len(all_post_codes) - 1)]
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)
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)
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Session.add(person)
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Session.commit()
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# start the demo fresh
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Session.remove() |