Open-ILS/src/javascript/opac/RecordResultPage.js

   1 var globalRecordResultPage = null;                                      /* our global object */
   2
   3 RecordResultPage.prototype                                      = new AbstractRecordResultPage();
   4 RecordResultPage.prototype.constructor  = RecordResultPage;
   5 RecordResultPage.baseClass                                      = AbstractRecordResultPage.constructor;
   6
   7 /* constructor for our singleton object */
   8 function RecordResultPage() {
   9
  10         debug("in RecordResultPage()");
  11
  12         if( globalRecordResultPage != null ) {
  13                 debug("globalRecordResultPage already exists: " +
  14                                 globalRecordResultPage.toString() );
  15                 return globalRecordResultPage;
  16         }
  17         globalRecordResultPage = this;
  18         this.resetSearch();
  19         debug("Built a new RecordResultPage()");
  20 }
  21
  22
  23 /* returns the global instance. builds the instance if necessary.  All client
  24  * code should use this method */
  25 RecordResultPage.instance = function() {
  26         if( globalRecordResultPage != null ) {
  27                 return globalRecordResultPage;
  28         }
  29         return new RecordResultPage();
  30 }
  31
  32 RecordResultPage.prototype.next = function() {
  33         paramObj.__page = parseInt(paramObj.__page) + 1;
  34         var paramArray = build_param_array();
  35         url_redirect( paramArray )
  36 }
  37
  38
  39 RecordResultPage.prototype.prev = function() {
  40         paramObj.__page = parseInt(paramObj.__page) - 1;
  41         var paramArray = build_param_array();
  42         url_redirect( paramArray )
  43 }
  44
  45
  46 RecordResultPage.prototype.mkLink = function(id, type, value) {
  47
  48         var href;
  49
  50         switch(type) {
  51
  52                 case "title":
  53                         href = createAppElement("a");
  54                         add_css_class(href,"record_result_title_link");
  55                         href.setAttribute("href","?target=record_result&mrid=" + id );
  56                         href.appendChild(createAppTextNode(value));
  57                         break;
  58
  59                 case "author":
  60                         href = createAppElement("a");
  61                         add_css_class(href,"record_result_author_link");
  62                         href.setAttribute("href","?target=mr_result&mr_search_type=author&mr_search_query=" +
  63                                               encodeURIComponent(value));
  64                         href.appendChild(createAppTextNode(value));
  65                         break;
  66
  67                 default:
  68                         throw new EXArg("Unknown link type: " + type );
  69         }
  70
  71         return href;
  72
  73 }
  74
  75 RecordResultPage.prototype.toString = function() {
  76
  77         return "\nRecordResultPage:\n"  +
  78                 "page: "                                                + this.page + "\n" +
  79                 "searchOffset: "                        + this.searchOffset + "\n" +
  80                 "recordIDs: "                           + this.recordIDs + "\n" +
  81                 "hitCount: "                            + this.hitCount + "\n" +
  82                 "hitsPerPage: "                 + this.hitsPerPage + "\n";
  83
  84 }
  85
  86
  87 RecordResultPage.prototype.isNewSearch = function() {
  88         if(this.page == 0)
  89                 return true;
  90         return false;
  91
  92 }
  93
  94 /* performs a new search */
  95 RecordResultPage.prototype.doSearch = function() {
  96
  97         debug( "Key Value Array \n" + js2JSON( paramObj ) );
  98
  99         this.page                       = parseInt(paramObj.__page);
 100         this.searchOffset = this.page * this.hitsPerPage;
 101
 102
 103         if(this.isNewSearch()) {
 104                 debug("RecordResultPage resetting search..");
 105                 this.resetSearch();
 106         }
 107
 108         var offset = parseInt(this.searchOffset);
 109         var hitspp      = parseInt(this.hitsPerPage);
 110
 111         /* is this just a call to next/prev? */
 112         if( this.recordIDs && this.recordIDs[offset] != null )  {
 113                 debug("We have the first part of the ID's");
 114                 if( this.recordIDs[offset + (hitspp -1 )] != null  ||
 115                                 this.recordIDs[this.hitCount - 1] != null ) {
 116                         /* we already have all of the IDS */
 117                         debug("We alread have the required mr " +
 118                                         "ids for the search: [" + this.string + "]");
 119                         this.collectRecords();
 120                         return;
 121                 }
 122         }
 123
 124
 125         if( paramObj.__mrid != null ) {
 126                 this.mrSearch(paramObj.__mrid);
 127                 return;
 128         }
 129
 130         if( paramObj.__search == "global" ) {
 131
 132                 if( paramObj.__tcn != null ) {
 133                         this.globalSearch("tcn", paramObj.__tcn);
 134                         return;
 135                 }
 136
 137                 if( paramObj.__isbn != null ) {
 138                         this.globalSearch("isbn", paramObj.__isbn);
 139                         return;
 140                 }
 141         }
 142
 143 }
 144
 145
 146 /* these are the simple global searches */
 147 RecordResultPage.prototype.globalSearch = function(type, term) {
 148
 149         if( !term || term.length < 2 )
 150                 throw new EXArg( "globalSearch needs valid term: " + term );
 151
 152         debug("Performing Global search for term: " + term );
 153
 154         var method;
 155         switch( type ) {
 156                 case "tcn":
 157                         method = "open-ils.search.biblio.tcn";
 158                         break;
 159
 160                 case "isbn":
 161                         method = "open-ils.search.biblio.isbn";
 162                         break;
 163         }
 164
 165         var request = new RemoteRequest( "open-ils.search",  method, term );
 166
 167         var obj = this;
 168         request.setCompleteCallback(
 169                 function(req) {
 170                         try {
 171                                 var result = req.getResultObject();
 172                                 debug( "Global Search returned: " + js2JSON(result) );
 173                                 obj.gatherIDs(result)
 174                                 obj.collectRecords();
 175                         } catch(E) { throw ("Search Error " + E ); }
 176                 }
 177         );
 178         request.send();
 179 }
 180
 181
 182 RecordResultPage.prototype.mrSearch = function(mrid) {
 183
 184         var request = new RemoteRequest("open-ils.search",
 185                 "open-ils.search.biblio.metarecord_to_records", mrid );
 186         debug("Gathering doc ids for metarecord " + mrid );
 187
 188         var obj = this;
 189         request.setCompleteCallback(
 190                 function(req) {
 191                         try{
 192                                 obj.gatherIDs(req.getResultObject());
 193                                 obj.collectRecords();
 194                         } catch(E) { throw ("Search Error " + E ); }
 195                 }
 196         );
 197         request.send();
 198 }
 199
 200 RecordResultPage.prototype.collectRecords = function() {
 201
 202         var i = this.searchOffset;
 203
 204         var hcell = getById("hit_count_cell");
 205         hcell.innerHTML = "Hits";
 206         hcell.innerHTML += "&nbsp;&nbsp;";
 207         hcell.innerHTML += this.hitCount;
 208
 209         while( i < (this.searchOffset + this.hitsPerPage) ) {
 210                 var id = this.recordIDs[i];
 211
 212                 if(id==null){ i++;  continue; }
 213
 214                 var request = new RemoteRequest( "open-ils.search",
 215                         "open-ils.search.biblio.record.mods_slim.retrieve", id );
 216                 this.requestBatch.push(request);
 217
 218                 request.name = "record_request_" + i;
 219                 request.search_id = i;
 220                 request.page_id = parseInt(i) - parseInt(this.searchOffset);
 221
 222                 /* define the callback for when we receive the record */
 223                 var obj = this;
 224                 request.setCompleteCallback(
 225                         function(req) {
 226                                 var record = req.getResultObject();
 227                                 obj.displayRecord( record, req.search_id, req.page_id );
 228                                 obj.doCopyCount( record, req.search_id, req.page_id );
 229                         }
 230                 );
 231
 232                 request.send();
 233                 i++;
 234         }
 235 }
 236
 237 RecordResultPage.prototype.doCopyCount = function( record, search_id, page_id ) {
 238
 239         var copy_box    = getById("record_result_copy_count_box_" + page_id );
 240
 241         /* kick off the copy count search */
 242         var orgunit = globalSelectedLocation;
 243         if(!orgunit) orgunit = globalLocation;
 244
 245         var copy_request = new RemoteRequest( "open-ils.search",
 246                 "open-ils.search.biblio.record.copy_count",
 247                 orgunit.id(), record.doc_id() );
 248
 249         this.requestBatch.push(copy_request);
 250
 251         copy_request.search_id = search_id;
 252         copy_request.name = "copy_request_" + (search_id+this.searchOffset);
 253
 254         debug("Sending copy request " + search_id + ":" + record.doc_id() );
 255
 256         var obj = this;
 257         copy_request.setCompleteCallback(
 258                 function(req) {
 259                         try {
 260                                 /*
 261                                 //copy_box.innerHTML = req.getResultObject();
 262                                 copy_box.appendChild(
 263                                         createAppTextNode(req.getResultObject()));
 264                                         */
 265                                 obj.displayCopyCounts(req.getResultObject(), search_id, page_id );
 266                         } catch(E) {
 267                                 alert("Copy Count Retrieval Error:\n" + E );
 268                         }
 269                 }
 270         );
 271
 272         copy_request.send();
 273 }
 274
 275
 276
 277