annotate MoinMoin/action/LocalSiteMap.py @ 5952:f6a74810da73

updated CHANGES
author Thomas Waldmann <tw AT waldmann-edv DOT de>
date Sun, 10 Mar 2013 15:28:04 +0100
parents a29847f26281
children
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1 # -*- coding: iso-8859-1 -*-
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2 """
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3 MoinMoin - LocalSiteMap action
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4
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5 The LocalSiteMap action gives you a page that shows
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6 nearby links. This is an example of what appears on the
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7 page (names are linkable on the real page):
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8
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9 MoinMoin
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10 GarthKidd
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11 OrphanedPages
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12 WantedPages
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13 JoeDoe
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14 CategoryHomepage
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15 CategoryCategory
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16 WikiHomePage
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17 JoeWishes
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18 WikiWiki
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19 OriginalWiki
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20
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21 @copyright: 2001 Steve Howell <showell@zipcon.com>,
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22 2001-2004 Juergen Hermann <jh@web.de>
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23 @license: GNU GPL, see COPYING for details.
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24 """
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25
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26 from MoinMoin import wikiutil
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27 from MoinMoin.Page import Page
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28
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29 class MaxNodesReachedException(Exception):
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30 pass
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31
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32 def execute(pagename, request):
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33 _ = request.getText
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34
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35 # This action generate data using the user language
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36 request.setContentLanguage(request.lang)
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37
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38 request.theme.send_title(_('Local Site Map for "%s"') % (pagename), pagename=pagename)
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39
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40 # Start content - IMPORTANT - witout content div, there is no
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41 # direction support!
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42 request.write(request.formatter.startContent("content"))
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43
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44 request.write(LocalSiteMap(pagename).output(request))
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45
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46 request.write(request.formatter.endContent()) # end content div
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47 request.theme.send_footer(pagename)
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48 request.theme.send_closing_html()
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49
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50 class LocalSiteMap:
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51 def __init__(self, name):
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52 self.name = name
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53 self.result = []
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54
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55 def output(self, request):
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56 tree = PageTreeBuilder(request).build_tree(self.name)
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57 #self.append("<small>")
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58 tree.depth_first_visit(request, self)
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59 #self.append("</small>")
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60 return """
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61 <p>
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62 %s
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63 </p>
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64 """ % ''.join(self.result)
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65
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66 def visit(self, request, name, depth):
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67 """ Visit a page, i.e. create a link.
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68 """
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69 if not name:
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70 return
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71 _ = request.getText
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72 pg = Page(request, name)
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73 action = __name__.split('.')[-1]
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74 self.append('&nbsp;' * (5*depth+1))
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75 self.append(pg.link_to(request, querystr={'action': action}))
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76 self.append("&nbsp;<small>[")
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77 self.append(pg.link_to(request, _('view')))
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78 self.append("</small>]<br>")
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79
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80 def append(self, text):
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81 self.result.append(text)
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82
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83
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84 class PageTreeBuilder:
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85 def __init__(self, request):
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86 self.request = request
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87 self.children = {}
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88 self.numnodes = 0
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89 self.maxnodes = 35
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90
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91 def mark_child(self, name):
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92 self.children[name] = 1
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93
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94 def child_marked(self, name):
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95 return name in self.children
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96
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97 def is_ok(self, child):
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98 if not self.child_marked(child):
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99 if not self.request.user.may.read(child):
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100 return 0
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101 if Page(self.request, child).exists():
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102 self.mark_child(child)
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103 return 1
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104 return 0
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105
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106 def new_kids(self, name):
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107 # does not recurse
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108 kids = []
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109 for child in Page(self.request, name).getPageLinks(self.request):
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110 if self.is_ok(child):
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111 kids.append(child)
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112 return kids
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113
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114 def new_node(self):
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115 self.numnodes = self.numnodes + 1
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116 if self.numnodes == self.maxnodes:
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117 raise MaxNodesReachedException
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118
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119 def build_tree(self, name):
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120 self.mark_child(name)
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121 tree = Tree(name)
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122 try:
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123 self.recurse_build([tree], 1)
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124 except MaxNodesReachedException:
0
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125 pass
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126 return tree
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127
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128 def recurse_build(self, trees, depth):
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129 all_kids = []
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130 for tree in trees:
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131 kids = self.new_kids(tree.node)
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132 for kid in kids:
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133 newTree = Tree(kid)
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134 tree.append(newTree)
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135 self.new_node()
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136 all_kids.append(newTree)
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137 if len(all_kids):
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138 self.recurse_build(all_kids, depth+1)
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139
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140 class Tree:
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141 def __init__(self, node):
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142 self.node = node
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143 self.children = []
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144
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145 def append(self, node):
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146 self.children.append(node)
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147
0
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148 def depth_first_visit(self, request, visitor, depth=0):
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149 visitor.visit(request, self.node, depth)
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150 for c in self.children:
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151 c.depth_first_visit(request, visitor, depth+1)
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152