mirror of
https://github.com/veekun/pokedex.git
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bad044d1d8
Includes a wrapper script 'pokedex' that can, so far, read data from a db and spit out CSVs or deploy CSVs to a db.
98 lines
2.8 KiB
Python
98 lines
2.8 KiB
Python
# encoding: utf8
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import sys
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from .db import connect, metadata
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def main():
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if len(sys.argv) <= 1:
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help()
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command = sys.argv[1]
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args = sys.argv[2:]
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# Find the command as a function in this file
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func = globals().get(command, None)
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if func and callable(func) and command != 'main':
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func(*args)
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else:
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help()
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def csvimport(engine_uri, dir='.'):
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import csv
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from sqlalchemy.orm.attributes import instrumentation_registry
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session = connect(engine_uri)
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metadata.create_all()
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# This is a secret attribute on a secret singleton of a secret class that
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# appears to hopefully contain all registered classes as keys.
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# There is no other way to accomplish this, as far as I can tell.
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# Fuck.
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for table in sorted(instrumentation_registry.manager_finders.keys(),
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key=lambda self: self.__table__.name):
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table_name = table.__table__.name
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print table_name
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reader = csv.reader(open("%s/%s.csv" % (dir, table_name), 'rb'), lineterminator='\n')
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columns = [unicode(column) for column in reader.next()]
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for csvs in reader:
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row = table()
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for column, value in zip(columns, csvs):
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value = value.decode('utf-8')
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setattr(row, column, value)
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session.add(row)
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session.commit()
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def csvexport(engine_uri, dir='.'):
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import csv
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session = connect(engine_uri)
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for table_name in sorted(metadata.tables.keys()):
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print table_name
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table = metadata.tables[table_name]
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writer = csv.writer(open("%s/%s.csv" % (dir, table_name), 'wb'), lineterminator='\n')
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columns = [col.name for col in table.columns]
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writer.writerow(columns)
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for row in session.query(table).all():
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csvs = []
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for col in columns:
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# Convert Pythony values to something more universal
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val = getattr(row, col)
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if val == None:
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val = ''
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elif val == True:
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val = '1'
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elif val == False:
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val = '0'
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else:
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val = unicode(val).encode('utf-8')
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csvs.append(val)
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writer.writerow(csvs)
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def help():
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print u"""pokedex -- a command-line Pokédex interface
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help Displays this message.
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These commands are only useful for developers:
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csvimport {uri} [dir] Import data from a set of CSVs to the database
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given by the URI.
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csvexport {uri} [dir] Export data from the database given by the URI
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to a set of CSVs.
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Directory defaults to cwd.
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"""
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sys.exit(0)
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