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1 from django.core.management.base import BaseCommand |
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2 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 import os |
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6 |
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7 try: |
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8 set |
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9 except NameError: |
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10 from sets import Set as set # Python 2.3 fallback |
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11 |
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12 class Command(BaseCommand): |
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13 option_list = BaseCommand.option_list + ( |
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14 make_option('--verbosity', action='store', dest='verbosity', default='1', |
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15 type='choice', choices=['0', '1', '2'], |
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16 help='Verbosity level; 0=minimal output, 1=normal output, 2=all output'), |
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17 ) |
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18 help = 'Installs the named fixture(s) in the database.' |
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19 args = "fixture [fixture ...]" |
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20 |
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21 def handle(self, *fixture_labels, **options): |
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22 from django.db.models import get_apps |
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23 from django.core import serializers |
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24 from django.db import connection, transaction |
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25 from django.conf import settings |
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26 |
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27 self.style = no_style() |
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28 |
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29 verbosity = int(options.get('verbosity', 1)) |
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30 show_traceback = options.get('traceback', False) |
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31 |
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32 # Keep a count of the installed objects and fixtures |
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33 fixture_count = 0 |
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34 object_count = 0 |
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35 models = set() |
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36 |
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37 humanize = lambda dirname: dirname and "'%s'" % dirname or 'absolute path' |
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38 |
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39 # Get a cursor (even though we don't need one yet). This has |
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40 # the side effect of initializing the test database (if |
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41 # it isn't already initialized). |
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42 cursor = connection.cursor() |
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43 |
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44 # Start transaction management. All fixtures are installed in a |
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45 # single transaction to ensure that all references are resolved. |
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46 transaction.commit_unless_managed() |
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47 transaction.enter_transaction_management() |
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48 transaction.managed(True) |
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49 |
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50 app_fixtures = [os.path.join(os.path.dirname(app.__file__), 'fixtures') for app in get_apps()] |
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51 for fixture_label in fixture_labels: |
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52 parts = fixture_label.split('.') |
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53 if len(parts) == 1: |
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54 fixture_name = fixture_label |
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55 formats = serializers.get_public_serializer_formats() |
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56 else: |
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57 fixture_name, format = '.'.join(parts[:-1]), parts[-1] |
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58 if format in serializers.get_public_serializer_formats(): |
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59 formats = [format] |
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60 else: |
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61 formats = [] |
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62 |
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63 if verbosity >= 2: |
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64 if formats: |
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65 print "Loading '%s' fixtures..." % fixture_name |
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66 else: |
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67 print "Skipping fixture '%s': %s is not a known serialization format" % (fixture_name, format) |
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68 |
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69 if os.path.isabs(fixture_name): |
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70 fixture_dirs = [fixture_name] |
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71 else: |
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72 fixture_dirs = app_fixtures + list(settings.FIXTURE_DIRS) + [''] |
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73 |
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74 for fixture_dir in fixture_dirs: |
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75 if verbosity > 1: |
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76 print "Checking %s for fixtures..." % humanize(fixture_dir) |
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77 |
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78 label_found = False |
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79 for format in formats: |
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80 serializer = serializers.get_serializer(format) |
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81 if verbosity > 1: |
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82 print "Trying %s for %s fixture '%s'..." % \ |
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83 (humanize(fixture_dir), format, fixture_name) |
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84 try: |
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85 full_path = os.path.join(fixture_dir, '.'.join([fixture_name, format])) |
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86 fixture = open(full_path, 'r') |
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87 if label_found: |
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88 fixture.close() |
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89 print self.style.ERROR("Multiple fixtures named '%s' in %s. Aborting." % |
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90 (fixture_name, humanize(fixture_dir))) |
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91 transaction.rollback() |
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92 transaction.leave_transaction_management() |
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93 return |
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94 else: |
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95 fixture_count += 1 |
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96 if verbosity > 0: |
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97 print "Installing %s fixture '%s' from %s." % \ |
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98 (format, fixture_name, humanize(fixture_dir)) |
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99 try: |
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100 objects = serializers.deserialize(format, fixture) |
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101 for obj in objects: |
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102 object_count += 1 |
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103 models.add(obj.object.__class__) |
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104 obj.save() |
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105 label_found = True |
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106 except Exception, e: |
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107 fixture.close() |
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108 transaction.rollback() |
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109 transaction.leave_transaction_management() |
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110 if show_traceback: |
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111 import traceback |
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112 traceback.print_exc() |
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113 else: |
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114 sys.stderr.write( |
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115 self.style.ERROR("Problem installing fixture '%s': %s\n" % |
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116 (full_path, str(e)))) |
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117 return |
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118 fixture.close() |
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119 except: |
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120 if verbosity >= 2: |
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121 print "No %s fixture '%s' in %s." % \ |
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122 (format, fixture_name, humanize(fixture_dir)) |
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123 |
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124 if object_count > 0: |
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125 sequence_sql = connection.ops.sequence_reset_sql(self.style, models) |
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126 if sequence_sql: |
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127 if verbosity > 1: |
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128 print "Resetting sequences" |
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129 for line in sequence_sql: |
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130 cursor.execute(line) |
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131 |
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132 transaction.commit() |
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133 transaction.leave_transaction_management() |
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134 |
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135 if object_count == 0: |
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136 if verbosity >= 2: |
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137 print "No fixtures found." |
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138 else: |
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139 if verbosity > 0: |
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140 print "Installed %d object(s) from %d fixture(s)" % (object_count, fixture_count) |