author | Sverre Rabbelier <srabbelier@gmail.com> |
Thu, 19 Mar 2009 23:25:34 +0000 | |
changeset 1942 | 832a1e80eee0 |
parent 323 | ff1a9aa48cfd |
permissions | -rw-r--r-- |
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1 |
from django.core.management.base import NoArgsCommand |
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from django.core.management.color import no_style |
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3 |
from optparse import make_option |
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4 |
import sys |
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5 |
|
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Major reorganization of the soc svn repo, to merge into a single App Engine
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6 |
try: |
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7 |
set |
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8 |
except NameError: |
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9 |
from sets import Set as set # Python 2.3 fallback |
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10 |
|
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11 |
class Command(NoArgsCommand): |
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12 |
option_list = NoArgsCommand.option_list + ( |
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13 |
make_option('--noinput', action='store_false', dest='interactive', default=True, |
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14 |
help='Tells Django to NOT prompt the user for input of any kind.'), |
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15 |
) |
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16 |
help = "Create the database tables for all apps in INSTALLED_APPS whose tables haven't already been created." |
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|
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def handle_noargs(self, **options): |
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from django.db import connection, transaction, models |
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from django.conf import settings |
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from django.core.management.sql import custom_sql_for_model, emit_post_sync_signal |
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verbosity = int(options.get('verbosity', 1)) |
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interactive = options.get('interactive') |
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25 |
show_traceback = options.get('traceback', False) |
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self.style = no_style() |
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28 |
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# Import the 'management' module within each installed app, to register |
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# dispatcher events. |
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for app_name in settings.INSTALLED_APPS: |
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32 |
try: |
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__import__(app_name + '.management', {}, {}, ['']) |
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except ImportError, exc: |
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35 |
# This is slightly hackish. We want to ignore ImportErrors |
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36 |
# if the "management" module itself is missing -- but we don't |
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37 |
# want to ignore the exception if the management module exists |
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Pawel Solyga <Pawel.Solyga@gmail.com>
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38 |
# but raises an ImportError for some reason. The only way we |
ff1a9aa48cfd
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parents:
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39 |
# can do this is to check the text of the exception. Note that |
ff1a9aa48cfd
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40 |
# we're a bit broad in how we check the text, because different |
ff1a9aa48cfd
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41 |
# Python implementations may not use the same text. |
ff1a9aa48cfd
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42 |
# CPython uses the text "No module named management" |
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# PyPy uses "No module named myproject.myapp.management" |
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44 |
msg = exc.args[0] |
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45 |
if not msg.startswith('No module named') or 'management' not in msg: |
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46 |
raise |
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47 |
|
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48 |
cursor = connection.cursor() |
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49 |
|
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50 |
# Get a list of already installed *models* so that references work right. |
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51 |
tables = connection.introspection.table_names() |
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52 |
seen_models = connection.introspection.installed_models(tables) |
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53 |
created_models = set() |
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54 |
pending_references = {} |
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55 |
|
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# Create the tables for each model |
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57 |
for app in models.get_apps(): |
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58 |
app_name = app.__name__.split('.')[-2] |
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59 |
model_list = models.get_models(app) |
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for model in model_list: |
03e267d67478
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61 |
# Create the model's database table, if it doesn't already exist. |
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if verbosity >= 2: |
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63 |
print "Processing %s.%s model" % (app_name, model._meta.object_name) |
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64 |
if connection.introspection.table_name_converter(model._meta.db_table) in tables: |
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continue |
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66 |
sql, references = connection.creation.sql_create_model(model, self.style, seen_models) |
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67 |
seen_models.add(model) |
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68 |
created_models.add(model) |
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69 |
for refto, refs in references.items(): |
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70 |
pending_references.setdefault(refto, []).extend(refs) |
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71 |
if refto in seen_models: |
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72 |
sql.extend(connection.creation.sql_for_pending_references(refto, self.style, pending_references)) |
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73 |
sql.extend(connection.creation.sql_for_pending_references(model, self.style, pending_references)) |
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74 |
if verbosity >= 1: |
03e267d67478
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75 |
print "Creating table %s" % model._meta.db_table |
03e267d67478
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76 |
for statement in sql: |
03e267d67478
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77 |
cursor.execute(statement) |
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78 |
tables.append(connection.introspection.table_name_converter(model._meta.db_table)) |
54
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79 |
|
03e267d67478
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80 |
# Create the m2m tables. This must be done after all tables have been created |
03e267d67478
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81 |
# to ensure that all referred tables will exist. |
03e267d67478
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82 |
for app in models.get_apps(): |
03e267d67478
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parents:
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83 |
app_name = app.__name__.split('.')[-2] |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
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84 |
model_list = models.get_models(app) |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
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85 |
for model in model_list: |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
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|
86 |
if model in created_models: |
323
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87 |
sql = connection.creation.sql_for_many_to_many(model, self.style) |
54
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88 |
if sql: |
03e267d67478
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parents:
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|
89 |
if verbosity >= 2: |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
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|
90 |
print "Creating many-to-many tables for %s.%s model" % (app_name, model._meta.object_name) |
03e267d67478
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parents:
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|
91 |
for statement in sql: |
03e267d67478
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|
92 |
cursor.execute(statement) |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
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93 |
|
03e267d67478
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94 |
transaction.commit_unless_managed() |
03e267d67478
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95 |
|
03e267d67478
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96 |
# Send the post_syncdb signal, so individual apps can do whatever they need |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
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parents:
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97 |
# to do at this point. |
03e267d67478
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98 |
emit_post_sync_signal(created_models, verbosity, interactive) |
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Major reorganization of the soc svn repo, to merge into a single App Engine
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99 |
|
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parents:
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100 |
# The connection may have been closed by a syncdb handler. |
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101 |
cursor = connection.cursor() |
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102 |
|
54
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103 |
# Install custom SQL for the app (but only if this |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
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parents:
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|
104 |
# is a model we've just created) |
03e267d67478
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parents:
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|
105 |
for app in models.get_apps(): |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
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parents:
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106 |
app_name = app.__name__.split('.')[-2] |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
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107 |
for model in models.get_models(app): |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
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parents:
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108 |
if model in created_models: |
323
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109 |
custom_sql = custom_sql_for_model(model, self.style) |
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110 |
if custom_sql: |
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111 |
if verbosity >= 1: |
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112 |
print "Installing custom SQL for %s.%s model" % (app_name, model._meta.object_name) |
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113 |
try: |
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114 |
for sql in custom_sql: |
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115 |
cursor.execute(sql) |
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116 |
except Exception, e: |
323
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117 |
sys.stderr.write("Failed to install custom SQL for %s.%s model: %s\n" % \ |
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118 |
(app_name, model._meta.object_name, e)) |
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119 |
if show_traceback: |
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120 |
import traceback |
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121 |
traceback.print_exc() |
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122 |
transaction.rollback_unless_managed() |
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123 |
else: |
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transaction.commit_unless_managed() |
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125 |
else: |
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126 |
if verbosity >= 2: |
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127 |
print "No custom SQL for %s.%s model" % (app_name, model._meta.object_name) |
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128 |
# Install SQL indicies for all newly created models |
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129 |
for app in models.get_apps(): |
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130 |
app_name = app.__name__.split('.')[-2] |
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131 |
for model in models.get_models(app): |
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132 |
if model in created_models: |
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133 |
index_sql = connection.creation.sql_indexes_for_model(model, self.style) |
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134 |
if index_sql: |
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135 |
if verbosity >= 1: |
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136 |
print "Installing index for %s.%s model" % (app_name, model._meta.object_name) |
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137 |
try: |
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138 |
for sql in index_sql: |
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139 |
cursor.execute(sql) |
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140 |
except Exception, e: |
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141 |
sys.stderr.write("Failed to install index for %s.%s model: %s\n" % \ |
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|
142 |
(app_name, model._meta.object_name, e)) |
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|
143 |
transaction.rollback_unless_managed() |
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|
144 |
else: |
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|
145 |
transaction.commit_unless_managed() |
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|
146 |
|
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147 |
# Install the 'initial_data' fixture, using format discovery |
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|
148 |
from django.core.management import call_command |
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|
149 |
call_command('loaddata', 'initial_data', verbosity=verbosity) |