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annotate lucene/src/luan/modules/lucene/Web_search.luan @ 540:4362eb720da9

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add Number module
author Franklin Schmidt <fschmidt@gmail.com>
date Mon, 01 Jun 2015 18:04:50 -0600
parents 473e456444ff
children c5a93767cc5c
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1 local Luan = require "luan:Luan"
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2 local load = Luan.load
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3 local pairs = Luan.pairs
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4 local ipairs = Luan.ipairs
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5 local range = Luan.range
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6 local to_string = Luan.to_string
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7 local Number = require "luan:Number"
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8 local integer = Number.integer
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9 local long = Number.long
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10 local double = Number.double
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11 local Io = require "luan:Io"
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12 local Http = require "luan:http/Http"
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13 local String = require "luan:String"
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14 local string_to_number = String.string_to_number
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15 local Html = require "luan:Html"
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16
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17 local M = {}
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18
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19 local function form() %>
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20 <html>
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21 <head>
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22 <% Html.simply_html_head() %>
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23 <title>Lucene Query</title>
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24 </head>
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25 <body>
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26 <div container>
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27 <h3 margin-top="1.5em">Lucene Query</h3>
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28 <form horizontal name="form0" method="post" margin-top="2em">
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29 <div row>
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30 <div colspan=2 align="right">
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31 <label>Query:</label>
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32 </div>
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33 <div colspan=10>
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34 <input name="query" size="80" value="query.all_docs" autofocus />
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35 <div textcolor="#888">Query examples: <i>query.term{ type = 'user' }</i> or <i>"type:user AND name:Joe"</i></div>
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36 </div>
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37 </div>
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38 <div row margin-top="1em">
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39 <div colspan=2 align="right">
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40 <label>Max Rows:</label>
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41 </div>
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42 <div colspan=10>
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43 <input name="rows" value="100" size="3" maxlength="5" /></p>
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44 </div>
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45 </div>
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46 <div row margin-top="1em">
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47 <div colspan=2 align="right">
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48 <label>Sort:</label>
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49 </div>
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50 <div colspan=10>
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51 <input name="sort" size="60" />
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52 <div textcolor="#888">Sort examples: sort{{ field = 'id', type='int' }}</div>
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53 </div>
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54 </div>
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55 <div row margin-top="1em">
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56 <div colspan=2></div>
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57 <div colspan=10>
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58 <input type="submit" textcolor="white" bgcolor="#337ab7" large/>
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59 </div>
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60 </div>
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61 </form>
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62 </div>
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63 <% Html.simply_html_body_bottom() %>
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64 </body>
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65 </html>
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66 <% end
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67
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68
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69 local function result(query,sort,headers,table) %>
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70 <html>
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71 <head>
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72 <% Html.simply_html_head() %>
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73 <title>Lucene Query</title>
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74 </head>
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75 <body>
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76 <div container>
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77 <h3 margin-top="1.5em">Lucene Query Results</h3>
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78 <div row>
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79 <div colspan=2 align="right">
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80 <label>Query:</label>
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81 </div>
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82 <div colspan=10>
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83 <b><%=Html.encode(to_string(query))%></b></p>
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84 </div>
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85 </div>
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86 <div row>
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87 <div colspan=2 align="right">
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88 <label>Sort:</label>
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89 </div>
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90 <div colspan=10>
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91 <b><%=Html.encode(to_string(sort))%></b></p>
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92 </div>
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93 </div>
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94 <table border condensed margin-top="1.5em">
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95 <tr>
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96 <th></th>
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97 <% for _, header in ipairs(headers) do %>
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98 <th><%=header%></th>
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99 <% end %>
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100 </tr>
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101 <% for i, row in ipairs(table) do %>
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102 <tr>
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103 <td><%=i%></td>
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104 <% for col in range(1, #headers) do %>
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105 <td><%= row[col] or "" %></td>
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106 <% end %>
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107 </tr>
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108 <% end %>
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109 </table>
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110 </div>
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111 <% Html.simply_html_body_bottom() %>
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112 </body>
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113 </html>
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114 <% end
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115
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116
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117 local function index_of(tbl,val)
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118 for i, v in ipairs(tbl) do
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119 if v == val then
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120 return i
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121 end
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122 end
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123 local n = #tbl + 1
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124 tbl[n] = val
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125 return n
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126 end
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127
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128
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129 function M.of(index)
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130
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131 return function()
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132 Io.stdout = Http.response.text_writer()
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133 local query_string = Http.request.parameter.query
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134 if query_string == nil then
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135 form()
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136 return
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137 end
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138 local query_env = {
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139 query=index.query;
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140 integer=integer;
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141 long=long;
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142 double=double;
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143 }
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144 local query = load(query_string,"<query>",query_env,true)()
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145 local rows = string_to_number(Http.request.parameter.rows)
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146 local sort = load(Http.request.parameter.sort,"<sort>",{sort=index.query.sort},true)()
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147 index.Searcher( function(searcher)
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148 local results, length, total_hits = searcher.search(query,rows,sort)
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149 local headers = {}
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150 local table = {}
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151 for doc in results do
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152 local row = {}
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153 for field, value in pairs(doc) do
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154 row[index_of(headers,field)] = value
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155 end
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156 table[#table+1] = row
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157 end
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158 result(query,sort,headers,table)
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159 end )
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160 end
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161
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162 end
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163
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164 return M