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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 """Views for GHOP Task Subscription. |
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18 """ |
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19 |
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20 __authors__ = [ |
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21 '"Madhusudan.C.S" <madhusudancs@gmail.com>' |
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22 ] |
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23 |
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24 |
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25 from google.appengine.ext import db |
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26 |
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27 from django import http |
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28 |
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29 from soc.logic import dicts |
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30 from soc.logic.models import user as user_logic |
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31 from soc.views.helper import decorators |
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32 from soc.views.models import base |
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33 |
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34 from soc.modules.ghop.logic.models import task as ghop_task_logic |
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35 from soc.modules.ghop.logic.models import task_subscription as \ |
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36 ghop_task_subscription_logic |
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37 from soc.modules.ghop.views.helper import access as ghop_access |
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38 |
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39 import soc.modules.ghop.logic.models.task_subscription |
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40 |
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41 |
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42 class View(base.View): |
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43 """View methods for the Task Subscriptions. |
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44 """ |
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45 |
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46 def __init__(self, params=None): |
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47 """Defines the fields and methods required for the task_subscription. |
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48 |
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49 Params: |
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50 params: a dict with params for this View |
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51 """ |
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52 |
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53 rights = ghop_access.GHOPChecker(params) |
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54 rights['subscribe'] = ['checkIsUser'] |
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55 |
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56 new_params = {} |
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57 new_params['logic'] = soc.modules.ghop.logic.models.task_subscription.logic |
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58 new_params['rights'] = rights |
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59 |
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60 new_params['name'] = "Task Subscription" |
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61 new_params['module_name'] = "task_subscription" |
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62 |
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63 new_params['module_package'] = 'soc.modules.ghop.views.models' |
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64 new_params['url_name'] = 'ghop/task_subscription' |
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65 |
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66 patterns = [] |
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67 patterns += [ |
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68 (r'^%(url_name)s/(?P<access_type>subscribe)$', |
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69 '%(module_package)s.%(module_name)s.subscribe', |
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70 'Subscribe to the %(name)s'), |
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71 ] |
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72 |
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73 new_params['extra_django_patterns'] = patterns |
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74 |
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75 params = dicts.merge(params, new_params, sub_merge=True) |
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76 |
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77 super(View, self).__init__(params=params) |
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78 |
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79 @decorators.merge_params |
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80 @decorators.check_access |
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81 def subscribe(self, request, access_type, page_name=None, |
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82 params=None, **kwargs): |
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83 """View that subscribes/unsubscribes an user. |
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84 |
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85 This view is accessed by an AJAX call from task public page. |
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86 |
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87 Args: |
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88 request: the standard Django HTTP request object |
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89 """ |
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90 |
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91 get_params = request.GET |
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92 |
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93 task_entity = ghop_task_logic.logic.getFromKeyNameOr404( |
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94 get_params['key_name']) |
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95 |
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96 user_account = user_logic.logic.getForCurrentAccount() |
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97 |
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98 fields = { |
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99 'task': task_entity, |
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100 } |
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101 |
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102 entity = ghop_task_subscription_logic.logic.getForFields( |
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103 fields, unique=True) |
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104 |
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105 subscribers = db.get(entity.subscribers) |
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106 |
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107 # TODO: this should not loop over all subscribers but use GET argument |
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108 remove = False |
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109 |
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110 if entity: |
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111 for subscriber in subscribers: |
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112 if subscriber.key() == user_account.key(): |
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113 remove = True |
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114 break |
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115 |
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116 if remove: |
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117 subscribers.remove(subscriber) |
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118 data = 'remove' |
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119 else: |
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120 subscribers.append(user_account) |
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121 data = 'add' |
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122 |
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123 # TODO: missing description for this argument, is it even necessary? |
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124 if not get_params.get('no_toggle'): |
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125 sub_keys = [] |
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126 for subscriber in subscribers: |
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127 sub_keys.append(subscriber.key()) |
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128 |
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129 properties = { |
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130 'subscribers': sub_keys, |
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131 } |
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132 |
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133 ghop_task_subscription_logic.logic.updateEntityProperties( |
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134 entity, properties) |
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135 |
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136 return http.HttpResponse(data) |
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137 |
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138 |
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139 view = View() |
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140 |
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141 subscribe = decorators.view(view.subscribe) |