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1 #!/usr/bin/python2.5 |
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2 # |
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3 # Copyright 2009 the Melange authors. |
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4 # |
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5 # Licensed under the Apache License, Version 2.0 (the "License"); |
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6 # you may not use this file except in compliance with the License. |
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7 # You may obtain a copy of the License at |
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8 # |
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9 # http://www.apache.org/licenses/LICENSE-2.0 |
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10 # |
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11 # Unless required by applicable law or agreed to in writing, software |
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12 # distributed under the License is distributed on an "AS IS" BASIS, |
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13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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14 # See the License for the specific language governing permissions and |
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15 # limitations under the License. |
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16 |
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17 """Version update Tasks starters. |
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18 """ |
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19 |
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20 __authors__ = [ |
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21 '"Sverre Rabbelier" <sverre@rabbelier.nl>', |
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22 '"Lennard de Rijk" <ljvderijk@gmail.com>', |
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23 ] |
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24 |
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25 |
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26 from django import http |
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27 from django.template import loader |
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28 from django.utils.translation import ugettext |
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29 |
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30 from soc.views.helper import responses |
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31 |
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32 |
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33 def getDjangoURLPatterns(): |
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34 """Returns the URL patterns for the views in this module. |
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35 """ |
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36 |
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37 patterns = [ |
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38 (r'tasks/update/start$', 'soc.tasks.updates.start_update.startTasks'), |
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39 (r'tasks/update/([a-z]+)$', 'soc.tasks.updates.start_update.runner')] |
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40 |
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41 return patterns |
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42 |
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43 |
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44 def startTasks(request): |
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45 """Presents a view that allows the user to start update tasks. |
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46 """ |
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47 |
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48 template = 'soc/tasks/start_update.html' |
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49 |
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50 context = responses.getUniversalContext(request) |
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51 |
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52 options = runner.getOptions() |
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53 |
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54 sorted_keys = [] |
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55 for key, option in options.iteritems(): |
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56 option['name'] = key |
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57 sorted_keys.append( |
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58 (option['from_version'], option['in_version_order'], key)) |
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59 |
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60 # sort the keys |
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61 sorted_keys.sort() |
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62 |
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63 # store only the true option |
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64 sorted_options = [] |
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65 |
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66 for key_tuple in sorted_keys: |
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67 option_key = key_tuple[2] |
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68 sorted_options.append(options[option_key]) |
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69 |
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70 context.update( |
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71 page_name='Update Tasks starter', |
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72 options=sorted_options, |
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73 ) |
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74 |
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75 content = loader.render_to_string(template, dictionary=context) |
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76 return http.HttpResponse(content) |
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77 |
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78 |
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79 class TaskRunner(object): |
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80 """Runs one of the supported task starters. |
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81 """ |
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82 |
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83 def __init__(self): |
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84 """Initializes the TaskRunner. |
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85 """ |
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86 |
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87 self.options = { |
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88 'program': self.programConversion(), |
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89 'student': self.studentConversion(), |
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90 'organization': self.orgConversion(), |
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91 } |
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92 |
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93 def getOptions(self): |
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94 """Returns the supported options. |
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95 """ |
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96 |
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97 return self.options |
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98 |
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99 def __call__(self, request, option): |
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100 """Starts the specified task. |
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101 """ |
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102 |
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103 context = responses.getUniversalContext(request) |
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104 context['page_name'] = 'Start Update Task' |
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105 |
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106 option = self.options.get(option) |
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107 if not option: |
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108 template = 'soc/error.html' |
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109 context['message'] = 'Uknown option "%s".' % option |
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110 else: |
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111 template = 'soc/tasks/run_update.html' |
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112 context['option'] = option |
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113 context['success'] = option['updater'](request) |
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114 |
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115 content = loader.render_to_string(template, dictionary=context) |
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116 return http.HttpResponse(content) |
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117 |
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118 def programConversion(self): |
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119 """ |
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120 """ |
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121 |
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122 description = ugettext('This converts the Program models to contain X,Y,Z. ' |
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123 'Note that this conversion will only work after Q') |
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124 |
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125 # TODO(ljvderijk): implement this |
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126 updater = lambda x:False |
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127 |
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128 conversion_information = {'from_version': 'V-1', |
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129 'in_version_order': 2, |
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130 'description': description, |
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131 'updater': updater} |
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132 |
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133 return conversion_information |
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134 |
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135 def studentConversion(self): |
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136 """ |
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137 """ |
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138 |
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139 description = ugettext('This converts the Student models to contain X,Y,Z.') |
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140 |
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141 # TODO(ljvderijk): implement this |
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142 updater = lambda x:False |
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143 |
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144 conversion_information = {'from_version': 'V-1', |
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145 'in_version_order': 1, |
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146 'description': description, |
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147 'updater': updater} |
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148 |
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149 return conversion_information |
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150 |
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151 def orgConversion(self): |
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152 """ |
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153 """ |
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154 |
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155 description = ugettext('This converts the Organization models to contain X,Y,Z.') |
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156 |
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157 # TODO(ljvderijk): implement this |
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158 updater = lambda x:False |
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159 |
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160 conversion_information = {'from_version': 'V-2', |
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161 'in_version_order': 1, |
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162 'description': description, |
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163 'updater': updater} |
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164 |
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165 return conversion_information |
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166 |
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167 runner = TaskRunner() |