Mercurial Hosting > luan
diff src/luan/modules/lucene/Web_search.luan @ 775:1a68fc55a80c
simplify dir structure
| author | Franklin Schmidt <fschmidt@gmail.com> |
|---|---|
| date | Fri, 26 Aug 2016 14:36:40 -0600 |
| parents | lucene/src/luan/modules/lucene/Web_search.luan@ca169567ce07 |
| children | bae2d0c2576c |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/luan/modules/lucene/Web_search.luan Fri Aug 26 14:36:40 2016 -0600 @@ -0,0 +1,189 @@ + local Luan = require "luan:Luan.luan" +local error = Luan.error +local pairs = Luan.pairs or error() +local ipairs = Luan.ipairs or error() +local range = Luan.range or error() +local to_string = Luan.to_string or error() +local Io = require "luan:Io.luan" +local repr = Io.repr or error() +local Http = require "luan:http/Http.luan" +local String = require "luan:String.luan" +local string_to_number = String.to_number or error() +local Html = require "luan:Html.luan" + + +local M = {} + +local function style() %> + body { + font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; + margin: 2em 5%; + } + h2 { + margin-bottom: .5em; + } + label { + text-align: right; + min-width: 6em; + display: inline-block; + margin-right: .5em; + } +<% +end + +local function form() %> +<html> + <head> + <title>Lucene Query</title> + <style> + <% style() %> + input { + margin-top: 1em; + } + input[type="text"] { + font: inherit; + padding: .5em .8em; + border-radius: 8px; + border-style: groove; + } + input[type="text"]:focus { + border-color: #66afe9; + outline: none; + } + span[tip] { + color: #888; + font-size: smaller; + margin-left: .5em; + } + input[type="submit"] { + color: white; + background: #337ab7; + border-color: #337ab7; + font: inherit; + padding: .5em; + border-radius: 4px; + } + input[type="submit"]:hover { + background: #236aa7 !important; + } + </style> + </head> + <body> + <h2>Lucene Query</h2> + <form horizontal name="form0" method="post"> + <div> + <label>Query:</label> + <input type=text name="query" size="80" autofocus /> + </div> + <div> + <label></label> + <span tip>Query examples: <i>type:user</i> or <i>+type:user +name:Joe"</i></span> + </div> + <div> + <label>Max Rows:</label> + <input type=text name="rows" value="100" size="3" maxlength="5" /> + </div> + <div> + <label>Sort:</label> + <input type=text name="sort" size="60" /> + </div> + <div> + <label></label> + <span tip>Sort examples: <i>name, id</i></span> + </div> + <div> + <label></label> + <input type="submit" /> + </div> + </form> + </body> +</html> +<% end + + +local function result(query,sort,headers,table) %> +<html> + <head> + <title>Lucene Query</title> + <style> + <% style() %> + table { + border-collapse: collapse; + width: 100%; + font-size: smaller; + } + th, td { + text-align: left; + padding: .5em; + border: solid 1px #ddd; + } + </style> + </head> + <body> + <h2>Lucene Query Results</h2> + <p><label>Query:</label> <b><%=Html.encode(to_string(query))%></b></p> + <p><label>Sort:</label> <b><%=Html.encode(to_string(sort))%></b></p> + <table> + <tr> + <th></th> + <% for _, header in ipairs(headers) do %> + <th><%=header%></th> + <% end %> + </tr> + <% for i, row in ipairs(table) do %> + <tr> + <td><%=i%></td> + <% + for col in range(1, #headers) do + local val = row[col] + %><td><%= val and repr(val) or "" %></td><% + end + %> + </tr> + <% end %> + </table> + </body> +</html> +<% end + + +local function index_of(tbl,val) + for i, v in ipairs(tbl) do + if v == val then + return i + end + end + local n = #tbl + 1 + tbl[n] = val + return n +end + + +function M.of(index) + index or error "index is nil" + + return function() + Io.stdout = Http.response.text_writer() + local query = Http.request.parameter.query + if query == nil then + form() + return + end + local rows = string_to_number(Http.request.parameter.rows) + local sort = Http.request.parameter.sort + local results = index.search(query,1,rows,sort) + local headers = {} + local table = {} + for _, doc in ipairs(results) do + local row = {} + for field, value in pairs(doc) do + row[index_of(headers,field)] = value + end + table[#table+1] = row + end + result(query,sort,headers,table) + end + +end + +return M