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annotate pylons_app/config/environment.py @ 49:3ada2f409c1c

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Added sqlalchemy support made models for database changed views to handle sqlalchemy
author Marcin Kuzminski <marcin@python-blog.com>
date Thu, 08 Apr 2010 01:50:46 +0200
parents 2e1247e62c5b
children 5e2470ebdbc6
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1 """Pylons environment configuration"""
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2 import logging
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3 import os
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5 from mako.lookup import TemplateLookup
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6 from pylons.configuration import PylonsConfig
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7 from pylons.error import handle_mako_error
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8 from sqlalchemy import engine_from_config
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9
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10 import pylons_app.lib.app_globals as app_globals
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11 import pylons_app.lib.helpers
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12 from pylons_app.config.routing import make_map
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13 from pylons_app.model import init_model
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15 log = logging.getLogger(__name__)
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16
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17 def load_environment(global_conf, app_conf):
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18 """Configure the Pylons environment via the ``pylons.config``
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19 object
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20 """
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21 config = PylonsConfig()
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22
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23 # Pylons paths
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24 root = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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25 paths = dict(root=root,
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26 controllers=os.path.join(root, 'controllers'),
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27 static_files=os.path.join(root, 'public'),
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28 templates=[os.path.join(root, 'templates')])
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30 # Initialize config with the basic options
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31 config.init_app(global_conf, app_conf, package='pylons_app', paths=paths)
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33 config['routes.map'] = make_map(config)
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34 config['pylons.app_globals'] = app_globals.Globals(config)
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35 config['pylons.h'] = pylons_app.lib.helpers
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37 # Setup cache object as early as possible
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38 import pylons
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39 pylons.cache._push_object(config['pylons.app_globals'].cache)
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42 # Create the Mako TemplateLookup, with the default auto-escaping
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43 config['pylons.app_globals'].mako_lookup = TemplateLookup(
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44 directories=paths['templates'],
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45 error_handler=handle_mako_error,
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46 module_directory=os.path.join(app_conf['cache_dir'], 'templates'),
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47 input_encoding='utf-8', default_filters=['escape'],
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48 imports=['from webhelpers.html import escape'])
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49
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50 #sets the c attribute access when don't existing attribute ar accessed
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51 config['pylons.strict_tmpl_context'] = False
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52
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53 #MULTIPLE DB configs
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54 # Setup the SQLAlchemy database engine
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55 if config['debug']:
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56 #use query time debugging.
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57 from pylons_app.lib.timerproxy import TimerProxy
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58 sa_engine_db1 = engine_from_config(config, 'sqlalchemy.db1.',
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59 proxy=TimerProxy())
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60 else:
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61 sa_engine_db1 = engine_from_config(config, 'sqlalchemy.db1.')
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63 init_model(sa_engine_db1)
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64
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65 # CONFIGURATION OPTIONS HERE (note: all config options will override
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66 # any Pylons config options)
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68 return config