root/trunk/cstr/src/recpt/cstrqueryaction.cpp @ 891

Revision 891, 5.7 KB (checked in by sjboddie, 20 years ago)

Initial revision

  • Property svn:keywords set to Author Date Id Revision
Line 
1/**********************************************************************
2 *
3 * cstrqueryaction.cpp --
4 * Copyright (C) 1999  The New Zealand Digital Library Project
5 *
6 * A component of the Greenstone digital library software
7 * from the New Zealand Digital Library Project at the
8 * University of Waikato, New Zealand.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 *
24 * $Id$
25 *
26 *********************************************************************/
27
28/*
29   $Log$
30   Revision 1.1  2000/02/01 22:32:37  sjboddie
31   Initial revision
32
33   Revision 1.1  1999/09/07 21:49:43  sjboddie
34   new cstr receptionist
35
36
37 */
38
39
40#include "cstrqueryaction.h"
41#include "cstrquerytools.h"
42#include "formattools.h"
43#include "OIDtools.h"
44#include "text_t.h"
45
46
47struct ltint
48{
49  bool operator()(const int &t1, const int &t2) const
50  { return t1 < t2; }
51};
52
53
54bool cstrqueryaction::do_action (cgiargsclass &args, const ColInfoResponse_t &collectinfo,
55                 recptproto *collectproto, displayclass &disp,
56                 outconvertclass &outconvert, ostream &textout,
57                 ostream &logout) {
58
59  if (formatstring.empty()) {
60    text_tmap::const_iterator result = collectinfo.format.find("result");
61    if (result != collectinfo.format.end())
62      formatstring = (*result).second;
63  }
64
65  // if we still don't have a format string use the default
66  if (formatstring.empty())
67    formatstring = "<td valign=top nowrap>[link]_icontext_[/link]</td><td>[Title]</td>";
68
69  if (collectproto == NULL) {
70    logout << "cstrqueryaction::do_action called with NULL collectproto\n";
71    textout << outconvert << disp << "_query:header_\n"
72        << "Error: Attempt to do query without setting collection\n"
73        << "_query:footer_\n";
74  } else { 
75
76    FilterRequest_t request;
77    FilterResponse_t response;
78    format_t *formatlistptr = new format_t();
79
80    parse_formatstring (formatstring, formatlistptr, request.fields, request.getParents);
81
82    request.fields.push_back ("Title");
83    int metasize = request.fields.size();
84
85    // do the query
86    request.filterResultOptions = FROID | FRmetadata | FRtermFreq;
87    if (!do_query (request, args, collectproto, response, logout))
88      return false;
89   
90    // set macros
91    define_query_macros (args, disp, response);
92   
93    // output the header
94    textout << outconvert << disp << "_query:header_\n"
95        << "_query:content_";
96
97    // output the results
98    textout << "<table cellspacing=4>\n";
99    ResultDocInfo_tarray::const_iterator this_doc = response.docInfo.begin();
100    ResultDocInfo_tarray::const_iterator end_doc = response.docInfo.end();
101
102    text_t top;
103    map<text_t, int, lttext_t> topOIDs;
104    map<int, ResultDocInfo_tarray, ltint> OIDs;
105    int count = 0;
106
107    // sort the result set to get document pages together
108    while (this_doc != end_doc) {
109      // don't include docs that didn't match phrases (if there were any)
110      // those that did match will have been sorted to the top
111      if ((*this_doc).num_phrase_match < num_phrases) break;
112
113      get_top ((*this_doc).OID, top);
114      map<text_t, int, lttext_t>::const_iterator it = topOIDs.find (top);
115      if (it == topOIDs.end()) {
116    // haven't seen this document before
117    topOIDs[top] = count;
118    OIDs[count].push_back (*this_doc);
119    count ++;
120      } else {
121    OIDs[(*it).second].push_back (*this_doc);
122      }
123      this_doc ++;
124    }
125
126    text_t link, icon;
127    map<int, ResultDocInfo_tarray, ltint>::iterator here = OIDs.begin();
128    map<int, ResultDocInfo_tarray, ltint>::iterator end = OIDs.end();
129    count = 1;
130    bool done = false;
131    int arg_r = args.getintarg("r");
132    int arg_o = args.getintarg("o");
133    int arg_m = args.getintarg("m");
134    while (here != end) {
135      ResultDocInfo_tarray::const_iterator thisOID = (*here).second.begin();
136      ResultDocInfo_tarray::const_iterator lastOID = (*here).second.end();
137     
138      icon.clear();
139      link.clear(); // link will always be empty as we're including the link in the icon
140      bool first = true;
141
142      while (thisOID != lastOID) {
143
144    if (count < arg_r) {thisOID ++; count ++; continue;}
145    if ((count >= (arg_o + arg_r)) || count > arg_m) {
146      done = true;
147      if (!icon.empty()) {
148        textout << outconvert << disp << "<tr>\n"
149            << get_formatted_string (*thisOID, formatlistptr, link, icon) << "\n"
150            << "</tr>\n";
151      }
152      break;
153
154    } else {
155
156      const text_t &title = (*thisOID).metadata[metasize-1].values.back();
157     
158      if (title.empty() && ((*here).second.size() == 1))
159        icon = "<a href=\"_httpdocument_&cl=search&d=" + (*thisOID).OID + "\">_iconclosedbook_</a>";
160      else {
161        if (first) icon += "_icontext_<br>";
162        icon += "<a href=\"_httpdocument_&cl=search&d=" + (*thisOID).OID + "\">page " +
163          title + "</a><br>\n";
164      }
165     
166      if ((thisOID + 1) == lastOID) {
167        textout << outconvert << disp << "<tr>\n"
168            << get_formatted_string (*thisOID, formatlistptr, link, icon) << "\n"
169            << "</tr>\n";
170      }
171      count ++;
172    }
173    if (done) break;
174    first = false;
175    thisOID ++;
176      }
177      here ++;
178    }
179
180    textout << "</table>\n";
181
182    delete (formatlistptr);
183
184    // output the footer
185    textout << outconvert << disp << "_query:footer_";
186  }
187 
188  return true;
189}
190
191
192
Note: See TracBrowser for help on using the browser.