plugins/univbrisfoam/static/js/univbrisfoam.js

   1 /**
   2  * Description: display a query result in a datatables-powered <table>
   3  * Copyright (c) 2012-2013 UPMC Sorbonne Universite - INRIA
   4  * License: GPLv3
   5  */
   6
   7 (function($){
   8
   9     var debug=false;
  10     //debug=true
  11
  12     var UnivbrisFoam = Plugin.extend({
  13
  14         init: function(options, element) {
  15             //alert("foam init called");
  16             this.classname="univbrisfoam";
  17             this._super(options, element);
  18
  19             //alert(this.options.hidden_columns);
  20             /* Member variables */
  21             // in general we expect 2 queries here
  22             // query_uuid refers to a single object (typically a slice)
  23             // query_all_uuid refers to a list (typically resources or users)
  24             // these can return in any order so we keep track of which has been received yet
  25             this.received_all_query = false;
  26             this.received_query = false;
  27
  28             // We need to remember the active filter for datatables filtering
  29             this.filters = Array();
  30
  31             // an internal buffer for records that are 'in' and thus need to be checked
  32             this.buffered_records_to_check = [];
  33             // an internal buffer for keeping lines and display them in one call to fnAddData
  34             this.buffered_lines = [];
  35
  36             /* Events */
  37             // xx somehow non of these triggers at all for now
  38             this.elmt().on('show', this, this.on_show);
  39             this.elmt().on('shown.bs.tab', this, this.on_show);
  40             this.elmt().on('resize', this, this.on_resize);
  41
  42             var query = manifold.query_store.find_analyzed_query(this.options.query_uuid);
  43             this.object = query.object;
  44
  45             //// we need 2 different keys
  46             // * canonical_key is the primary key as derived from metadata (typically: urn)
  47             //   and is used to communicate about a given record with the other plugins
  48             // * init_key is a key that both kinds of records
  49             //   (i.e. records returned by both queries) must have (typically: hrn or hostname)
  50             //   in general query_all will return well populated records, but query
  51             //   returns records with only the fields displayed on startup
  52             var keys = manifold.metadata.get_key(this.object);
  53             this.canonical_key = (keys && keys.length == 1) ? keys[0] : undefined;
  54             //
  55             this.init_key = this.options.init_key;
  56             // have init_key default to canonical_key
  57             this.init_key = this.init_key || this.canonical_key;
  58             // sanity check
  59             if ( ! this.init_key ) messages.warning ("UnivbrisFoam : cannot find init_key");
  60             if ( ! this.canonical_key ) messages.warning ("UnivbrisFoam : cannot find canonical_key");
  61             if (debug) messages.debug("UnivbrisFoam: canonical_key="+this.canonical_key+" init_key="+this.init_key);
  62             /* Setup query and record handlers */
  63             this.listen_query(options.query_uuid);
  64             this.listen_query(options.query_all_uuid, 'all');
  65
  66             /* GUI setup and event binding */
  67             this.initialize_table();
  68
  69         },
  70
  71         /* PLUGIN EVENTS */
  72
  73         on_show: function(e) {
  74             if (debug) messages.debug("univbrisfoam.on_show");
  75             var self = e.data;
  76             self.table.fnAdjustColumnSizing();
  77         },
  78
  79         on_resize: function(e) {
  80             if (debug) messages.debug("univbrisfoam.on_resize");
  81             var self = e.data;
  82             self.table.fnAdjustColumnSizing();
  83         },
  84
  85         /* GUI EVENTS */
  86
  87         /* GUI MANIPULATION */
  88
  89         initialize_table: function()
  90         {
  91             /* Transforms the table into DataTable, and keep a pointer to it */
  92                 //alert("init");
  93             var self = this;
  94             var actual_options = {
  95                 // Customize the position of Datatables elements (length,filter,button,...)
  96                 // we use a fluid row on top and another on the bottom, making sure we take 12 grid elt's each time
  97                 //sDom: "<'row'<'col-xs-5'l><'col-xs-1'r><'col-xs-6'f>>t<'row'<'col-xs-5'i><'col-xs-7'p>>",
  98                 sDom: "<'row'<'col-xs-2'l><'col-xs-9'r><'col-xs-2'f>>t<'row'<'col-xs-5'i><'col-xs-5'p>><'next'>",
  99                 // XXX as of sept. 2013, I cannot locate a bootstrap3-friendly mode for now
 100                 // hopefully this would come with dataTables v1.10 ?
 101                 // in any case, search for 'sPaginationType' all over the code for more comments
 102                 sPaginationType: 'bootstrap',
 103                 // Handle the null values & the error : Datatables warning Requested unknown parameter
 104                 // http://datatables.net/forums/discussion/5331/datatables-warning-...-requested-unknown-parameter/p2
 105                 aoColumnDefs: [{sDefaultContent: '',aTargets: [ '_all' ]}],
 106                 // WARNING: this one causes tables in a 'tabs' that are not exposed at the time this is run to show up empty
 107                 // sScrollX: '100%',       /* Horizontal scrolling */
 108                 bProcessing: true,      /* Loading */
 109                 fnDrawCallback: function() { self._querytable_draw_callback.call(self);}
 110                 //fnFooterCallback: function() {self._univbrisfoam_footer_callback.call(self,nFoot, aData, iStart, iEnd, aiDisplay)};}
 111                 // XXX use $.proxy here !
 112             };
 113             // the intention here is that options.datatables_options as coming from the python object take precedence
 114             // xxx DISABLED by jordan: was causing errors in datatables.js
 115             // xxx turned back on by Thierry - this is the code that takes python-provided options into account
 116             // check your datatables_options tag instead
 117             // however, we have to accumulate in aoColumnDefs from here (above)
 118             // and from the python wrapper (checkboxes management, plus any user-provided aoColumnDefs)
 119             if ( 'aoColumnDefs' in this.options.datatables_options) {
 120                 actual_options['aoColumnDefs']=this.options.datatables_options['aoColumnDefs'].concat(actual_options['aoColumnDefs']);
 121                 delete this.options.datatables_options['aoColumnDefs'];
 122             }
 123             $.extend(actual_options, this.options.datatables_options );
 124             this.table = $("#univbris_foam_ports_selection__table").dataTable(actual_options);
 125
 126             //this.table = this.elmt("table").dataTable(actual_options);
 127             //alert(this.table);
 128
 129             /* Setup the SelectAll button in the dataTable header */
 130             /* xxx not sure this is still working */
 131             var oSelectAll = $('#datatableSelectAll-'+ this.options.plugin_uuid);
 132             oSelectAll.html("<span class='glyphicon glyphicon-ok' style='float:right;display:inline-block;'></span>Select All");
 133             oSelectAll.button();
 134             oSelectAll.css('font-size','11px');
 135             oSelectAll.css('float','right');
 136             oSelectAll.css('margin-right','15px');
 137             oSelectAll.css('margin-bottom','5px');
 138             oSelectAll.unbind('click');
 139             oSelectAll.click(this._selectAll);
 140
 141             /* Add a filtering function to the current table
 142              * Note: we use closure to get access to the 'options'
 143              */
 144             $.fn.dataTableExt.afnFiltering.push(function( oSettings, aData, iDataIndex ) {
 145                 /* No filtering if the table does not match */
 146                 if (oSettings.nTable.id != self.options.plugin_uuid + '__table')
 147                     return true;
 148                 return self._querytable_filter.call(self, oSettings, aData, iDataIndex);
 149             });
 150
 151            //alert(this.options.hidden_columns);
 152
 153             /* Processing hidden_columns */
 154             $.each(this.options.hidden_columns, function(i, field) {
 155                 //manifold.raise_event(self.options.query_all_uuid, FIELD_REMOVED, field);
 156                 //alert (field);
 157                 self.hide_column(field);
 158                 //self.hide_column(field);
 159             });
 160
 161             $('<button id="next" type="button" style="height: 50px; width: 300px" onclick="fnButnext()">select flowspace</button>').appendTo('div.next');
 162
 163             //type="submit"
 164
 165               //$('<a href="http://localhost:8000/login/" id="next_link">next link</a>').appendTo('div.next');
 166             //$("#univbris_flowspace_selection").style.display="none";
 167
 168
 169         }, // initialize_table
 170
 171
 172         fnButnext:function(e){
 173                 e.stopPropagation();
 174                 //var sData = this.table.$('input').serialize();
 175                 //var sData = $(this).closest('checkboxes__table').find('input').serialize();
 176                 //var sData = $("form").find('input').serialize();
 177                 //var element=this.table.$("id="'NEC A/80<->NEC B/1080'"");
 178                 //var element=this.table.$("[id='"+"NEC A/80<->NEC B/1080"+"']");
 179                 //var x = element.checked;
 180                 //var uuid=this.id.split("-");
 181                 //var oTable=$('checkboxes__table').dataTable();
 182                 //var oTable=$.fn.dataTable();
 183                 //this.elts("table").unbind('click').click(this, this.fnButnext);
 184                 //var sData = $('input', oTable.fnGetNodes()).serialize();
 185                 //$.fn.dataTable()
 186                 //sData="test";
 187                 ///var self = e.data;
 188                 //self=self.options.query_uuid;
 189                 //var oTable=$("#querytable-"+self).dataTable();
 190                 //var sData = $('input', oTable.fnGetNodes()).serialize();
 191                 //e.stopPropagation();
 192                 //var oTable=$('#myTable').dataTable();
 193                 //var sData = $('input', $("#uob_form")).serialize();
 194                 //$("#univbris_flowspace_selection").style.visibility='visible';
 195                 var sData=$("#uob_form").find("input").serialize();
 196                 //alert("clicked: "+sData);
 197                 jQuery( "#univbris_flowspace_selection" ).show();
 198                 //$("#multi_flowpspace_ports_selected").append('<label><input type="checkbox" name="option[]" value="1" />chocolate</label>');
 199
 200                 $("form#uob_form :input[type=checkbox]").each(function(){
 201                         var input = $(this); // This is the jquery object of the input, do what you will
 202                         //alert("id: "+ input.attr('id') + " checked: "+ input.is(':checked'));
 203                         if(input.is(':checked')==true){
 204                                 //alert("got true");
 205                                 $("#multi_flowpspace_ports_selected").append('<label><input type="checkbox" name="'+input.attr('id')+'" />'+input.attr('id')+'</label>');
 206                         }
 207                 });
 208
 209                 jQuery( "#univbris_foam_ports_selection" ).hide();
 210                 //jQuery( "#univbris_flowspace_selection" ).hide();
 211
 212                 //var url = "http://localhost:8000/login/";
 213                 //$(location).attr('href',url);
 214                 //window.location.href = "http://localhost:8000/login/"
 215                 //window.location.replace("http://localhost:8000/login/");
 216                 //UnivbrisFv(options,elements);
 217
 218                         //$("#next_link").click();
 219
 220                 },
 221
 222
 223
 224         /**
 225          * @brief Determine index of key in the table columns
 226          * @param key
 227          * @param cols
 228          */
 229         getColIndex: function(key, cols) {
 230             var tabIndex = $.map(cols, function(x, i) { if (x.sTitle == key) return i; });
 231             return (tabIndex.length > 0) ? tabIndex[0] : -1;
 232         }, // getColIndex
 233
 234         // create a checkbox <input> tag
 235         // computes 'id' attribute from canonical_key
 236         // computes 'init_id' from init_key for initialization phase
 237         // no need to used convoluted ids with plugin-uuid or others, since
 238         // we search using table.$ which looks only in this table
 239         checkbox_html : function (record) {
 240             var result="";
 241             // Prefix id with plugin_uuid
 242             result += "<input";
 243             result += " class='univbrisfoam-checkbox'";
 244          // compute id from canonical_key
 245             var id = record[this.canonical_key]
 246          // compute init_id form init_key
 247             var init_id=record[this.init_key];
 248          // set id - for retrieving from an id, or for posting events upon user's clicks
 249             result += " id='"+record[this.canonical_key]+"'";
 250          // set init_id
 251             result += "init_id='" + init_id + "'";
 252          // wrap up
 253             result += " type='checkbox'";
 254             result += " autocomplete='off'";
 255             result += "></input>";
 256             return result;
 257         },
 258
 259          fake_checkbox_html : function (record) {
 260             //alert("fake fun called");
 261             var result="";
 262             // Prefix id with plugin_uuid
 263             result += "<input";
 264             //result += " class='univbrisfoam-checkbox'";
 265          // set id - for retrieving from an id, or for posting events upon user's clicks
 266             result += " id='"+ record +"'";
 267             result += " name='"+ record +"'";
 268          // set init_id
 269             result += " init_id='" + record + "'";
 270          // wrap up
 271             result += " type='checkbox'";
 272             result += " autocomplete='off'";
 273             result += "></input>";
 274             ///alert(result);
 275             return result;
 276         },
 277
 278
 279         new_record: function(record)
 280         {
 281
 282          // this models a line in dataTables, each element in the line describes a cell
 283             line = new Array();
 284
 285             // go through table headers to get column names we want
 286             // in order (we have temporarily hack some adjustments in names)
 287             var cols = this.table.fnSettings().aoColumns;
 288             var colnames = cols.map(function(x) {return x.sTitle})
 289             var nb_col = cols.length;
 290             /* if we've requested checkboxes, then forget about the checkbox column for now */
 291             if (this.options.checkboxes) nb_col -= 1;
 292
 293
 294             var urn = record['urn'];
 295             //alert(urn);
 296             var pos = urn.search('link');
 297             //filter records to add links only
 298             if (pos!=-1){
 299                     //alert(urn);
 300                     var link = urn.substring(pos+5);
 301                     pos = link.search("_");
 302                     var head_node=link.substring(0,pos);
 303                     link=link.substring(pos+1);
 304                     pos = link.search("_");
 305                     var head_port=link.substring(0,pos);
 306                     link=link.substring(pos+1);
 307                     pos = link.search("_");
 308                     var tail_node=link.substring(0,pos);
 309                     link=link.substring(pos+1);
 310                     //pos = link.search("_");
 311                     var tail_port=link;
 312
 313
 314                     //var head_node=urn.substring(pos+5,pos+28);
 315                     //var head_port=urn.substring(pos+29,pos+31);
 316                     //var tail_node=urn.substring(pos+32,pos+55);
 317                     //var tail_port=urn.substring(pos+56,pos+58);
 318
 319                     //link type int 0-packet, 1-optical, 2-compute
 320                     var link_type=0;
 321                     if (urn.search('circuit')!=-1){
 322                         link_type=1;
 323                     }
 324                     else if (urn.search('compute')!=-1){
 325                         link_type=2;
 326                     }
 327
 328                     //get island name
 329                     pos = urn.search('ofam');
 330                     var testbed=urn.substring(pos+5);
 331                     testbed=testbed.substring(0, testbed.search('link')-1);
 332
 333                     //alert(urn);
 334
 335                     //alert("h: "+head_node+"/"+head_port);
 336                     //alert("t: "+tail_node+"/"+tail_port);
 337
 338
 339                     //alert(colnames);
 340                     /*replace production*/
 341                     /* fill in stuff depending on the column name */
 342                     for (var j = 0; j < nb_col; j++) {
 343                         if (typeof colnames[j] == 'undefined') {
 344                             line.push('...');
 345                         } else if (colnames[j] == 'testbed') {
 346                            line.push(testbed);
 347                         } else if (colnames[j] == 'head node id/port') {
 348                             line.push(head_node+"/"+head_port);
 349                         }
 350                           else if (colnames[j] == 'tail node id/port'){
 351                             line.push(tail_node+"/"+tail_port);
 352                         }
 353                           else if (colnames[j] == 'link type'){
 354                             switch (link_type){
 355                                 case 0:
 356                                         line.push("packet");
 357                                         break;
 358
 359                                 case 1:
 360                                         line.push("optical");
 361                                         break;
 362
 363                                 case 2:
 364                                         line.push("compute");
 365                                         break;
 366                             }
 367                         }
 368                           else if (colnames[j] == 'selected'){
 369
 370                             line.push(this.fake_checkbox_html(urn));
 371                         }
 372
 373                     }
 374
 375
 376                     // catch up with the last column if checkboxes were requested
 377                     if (this.options.checkboxes) {
 378                         // Use a key instead of hostname (hard coded...)
 379                         line.push(this.checkbox_html(record));
 380                         }
 381
 382                     // adding an array in one call is *much* more efficient
 383                         // this.table.fnAddData(line);
 384                         this.buffered_lines.push(line);
 385
 386             }
 387         },
 388
 389         clear_table: function()
 390         {
 391             this.table.fnClearTable();
 392         },
 393
 394         redraw_table: function()
 395         {
 396             this.table.fnDraw();
 397         },
 398
 399         show_column: function(field)
 400         {
 401             var oSettings = this.table.fnSettings();
 402             var cols = oSettings.aoColumns;
 403             var index = this.getColIndex(field,cols);
 404             if (index != -1)
 405                 this.table.fnSetColumnVis(index, true);
 406         },
 407
 408         hide_column: function(field)
 409         {
 410             var oSettings = this.table.fnSettings();
 411             var cols = oSettings.aoColumns;
 412             var index = this.getColIndex(field,cols);
 413             //index=-1;
 414             //alert(field + ": index: " + index );
 415             if (index != -1)
 416                 //alert(field + ": hidden with index: " + index );
 417                 this.table.fnSetColumnVis(index, false);
 418         },
 419
 420         // this is used at init-time, at which point only init_key can make sense
 421         // (because the argument record, if it comes from query, might not have canonical_key set
 422         set_checkbox_from_record: function (record, checked) {
 423             if (checked === undefined) checked = true;
 424             var init_id = record[this.init_key];
 425             if (debug) messages.debug("univbrisfoam.set_checkbox_from_record, init_id="+init_id);
 426             // using table.$ to search inside elements that are not visible
 427             var element = this.table.$('[init_id="'+init_id+'"]');
 428             element.attr('checked',checked);
 429         },
 430
 431         // id relates to canonical_key
 432         set_checkbox_from_data: function (id, checked) {
 433             if (checked === undefined) checked = true;
 434             if (debug) messages.debug("univbrisfoam.set_checkbox_from_data, id="+id);
 435             // using table.$ to search inside elements that are not visible
 436             var element = this.table.$("[id='"+id+"']");
 437             element.attr('checked',checked);
 438         },
 439
 440         /*************************** QUERY HANDLER ****************************/
 441
 442         on_filter_added: function(filter)
 443         {
 444             this.filters.push(filter);
 445             this.redraw_table();
 446         },
 447
 448         on_filter_removed: function(filter)
 449         {
 450             // Remove corresponding filters
 451             this.filters = $.grep(this.filters, function(x) {
 452                 return x != filter;
 453             });
 454             this.redraw_table();
 455         },
 456
 457         on_filter_clear: function()
 458         {
 459             // XXX
 460             this.redraw_table();
 461         },
 462
 463         on_field_added: function(field)
 464         {
 465             this.show_column(field);
 466         },
 467
 468         on_field_removed: function(field)
 469         {
 470             this.hide_column(field);
 471         },
 472
 473         on_field_clear: function()
 474         {
 475             alert('UnivbrisFoam::clear_fields() not implemented');
 476         },
 477
 478         /* XXX TODO: make this generic a plugin has to subscribe to a set of Queries to avoid duplicated code ! */
 479         /*************************** ALL QUERY HANDLER ****************************/
 480
 481         on_all_filter_added: function(filter)
 482         {
 483             // XXX
 484             this.redraw_table();
 485         },
 486
 487         on_all_filter_removed: function(filter)
 488         {
 489             // XXX
 490             this.redraw_table();
 491         },
 492
 493         on_all_filter_clear: function()
 494         {
 495             // XXX
 496             this.redraw_table();
 497         },
 498
 499         on_all_field_added: function(field)
 500         {
 501             this.show_column(field);
 502         },
 503
 504         on_all_field_removed: function(field)
 505         {
 506             this.hide_column(field);
 507         },
 508
 509         on_all_field_clear: function()
 510         {
 511             alert('UnivbrisFoam::clear_fields() not implemented');
 512         },
 513
 514
 515         /*************************** RECORD HANDLER ***************************/
 516
 517         on_new_record: function(record)
 518         {
 519             if (this.received_all_query) {
 520                 // if the 'all' query has been dealt with already we may turn on the checkbox
 521                 this.set_checkbox_from_record(record, true);
 522             } else {
 523                 this.buffered_records_to_check.push(record);
 524             }
 525         },
 526
 527         on_clear_records: function()
 528         {
 529         },
 530
 531         // Could be the default in parent
 532         on_query_in_progress: function()
 533         {
 534             this.spin();
 535         },
 536
 537         on_query_done: function()
 538         {
 539             this.received_query = true;
 540             // unspin once we have received both
 541             if (this.received_all_query && this.received_query) this.unspin();
 542         },
 543
 544         on_field_state_changed: function(data)
 545         {
 546             switch(data.request) {
 547                 case FIELD_REQUEST_ADD:
 548                 case FIELD_REQUEST_ADD_RESET:
 549                     this.set_checkbox_from_data(data.value, true);
 550                     break;
 551                 case FIELD_REQUEST_REMOVE:
 552                 case FIELD_REQUEST_REMOVE_RESET:
 553                     this.set_checkbox_from_data(data.value, false);
 554                     break;
 555                 default:
 556                     break;
 557             }
 558         },
 559
 560         /* XXX TODO: make this generic a plugin has to subscribe to a set of Queries to avoid duplicated code ! */
 561         // all
 562         on_all_field_state_changed: function(data)
 563         {
 564             switch(data.request) {
 565                 case FIELD_REQUEST_ADD:
 566                 case FIELD_REQUEST_ADD_RESET:
 567                     this.set_checkboxfrom_data(data.value, true);
 568                     break;
 569                 case FIELD_REQUEST_REMOVE:
 570                 case FIELD_REQUEST_REMOVE_RESET:
 571                     this.set_checkbox_from_data(data.value, false);
 572                     break;
 573                 default:
 574                     break;
 575             }
 576         },
 577
 578         on_all_new_record: function(record)
 579         {
 580             this.new_record(record);
 581         },
 582
 583         on_all_clear_records: function()
 584         {
 585             this.clear_table();
 586
 587         },
 588
 589         on_all_query_in_progress: function()
 590         {
 591             // XXX parent
 592             this.spin();
 593         }, // on_all_query_in_progress
 594
 595         on_all_query_done: function()
 596         {
 597             if (debug) messages.debug("1-shot initializing dataTables content with " + this.buffered_lines.length + " lines");
 598             this.table.fnAddData (this.buffered_lines);
 599             this.buffered_lines=[];
 600
 601             var self = this;
 602             // if we've already received the slice query, we have not been able to set
 603             // checkboxes on the fly at that time (dom not yet created)
 604             $.each(this.buffered_records_to_check, function(i, record) {
 605                 if (debug) messages.debug ("querytable delayed turning on checkbox " + i + " record= " + record);
 606                 self.set_checkbox_from_record(record, true);
 607             });
 608             this.buffered_records_to_check = [];
 609
 610             this.received_all_query = true;
 611             // unspin once we have received both
 612             if (this.received_all_query && this.received_query) this.unspin();
 613
 614         }, // on_all_query_done
 615
 616         /************************** PRIVATE METHODS ***************************/
 617
 618         /**
 619          * @brief QueryTable filtering function
 620          */
 621         _querytable_filter: function(oSettings, aData, iDataIndex)
 622         {
 623             var ret = true;
 624             $.each (this.filters, function(index, filter) {
 625                 /* XXX How to manage checkbox ? */
 626                 var key = filter[0];
 627                 var op = filter[1];
 628                 var value = filter[2];
 629
 630                 /* Determine index of key in the table columns */
 631                 var col = $.map(oSettings.aoColumns, function(x, i) {if (x.sTitle == key) return i;})[0];
 632
 633                 /* Unknown key: no filtering */
 634                 if (typeof(col) == 'undefined')
 635                     return;
 636
 637                 col_value=unfold.get_value(aData[col]);
 638                 /* Test whether current filter is compatible with the column */
 639                 if (op == '=' || op == '==') {
 640                     if ( col_value != value || col_value==null || col_value=="" || col_value=="n/a")
 641                         ret = false;
 642                 }else if (op == '!=') {
 643                     if ( col_value == value || col_value==null || col_value=="" || col_value=="n/a")
 644                         ret = false;
 645                 } else if(op=='<') {
 646                     if ( parseFloat(col_value) >= value || col_value==null || col_value=="" || col_value=="n/a")
 647                         ret = false;
 648                 } else if(op=='>') {
 649                     if ( parseFloat(col_value) <= value || col_value==null || col_value=="" || col_value=="n/a")
 650                         ret = false;
 651                 } else if(op=='<=' || op=='≤') {
 652                     if ( parseFloat(col_value) > value || col_value==null || col_value=="" || col_value=="n/a")
 653                         ret = false;
 654                 } else if(op=='>=' || op=='≥') {
 655                     if ( parseFloat(col_value) < value || col_value==null || col_value=="" || col_value=="n/a")
 656                         ret = false;
 657                 }else{
 658                     // How to break out of a loop ?
 659                     alert("filter not supported");
 660                     return false;
 661                 }
 662
 663             });
 664             return ret;
 665         },
 666
 667         _querytable_draw_callback: function()
 668         {
 669             /*
 670              * Handle clicks on checkboxes: reassociate checkbox click every time
 671              * the table is redrawn
 672              */
 673             this.elts('querytable-checkbox').unbind('click').click(this, this._check_click);
 674             this.elts("next").unbind('click').click(this, this.fnButnext);
 675
 676
 677             if (!this.table)
 678                 return;
 679
 680             /* Remove pagination if we show only a few results */
 681             var wrapper = this.table; //.parent().parent().parent();
 682             var rowsPerPage = this.table.fnSettings()._iDisplayLength;
 683             var rowsToShow = this.table.fnSettings().fnRecordsDisplay();
 684             var minRowsPerPage = this.table.fnSettings().aLengthMenu[0];
 685
 686             if ( rowsToShow <= rowsPerPage || rowsPerPage == -1 ) {
 687                 $('.querytable_paginate', wrapper).css('visibility', 'hidden');
 688             } else {
 689                 $('.querytable_paginate', wrapper).css('visibility', 'visible');
 690             }
 691
 692             if ( rowsToShow <= minRowsPerPage ) {
 693                 $('.querytable_length', wrapper).css('visibility', 'hidden');
 694             } else {
 695                 $('.querytable_length', wrapper).css('visibility', 'visible');
 696             }
 697
 698         },
 699
 700
 701
 702         _check_click: function(e)
 703         {
 704             e.stopPropagation();
 705
 706             var self = e.data;
 707             var id=this.id;
 708
 709             // this.id = key of object to be added... what about multiple keys ?
 710             if (debug) messages.debug("querytable._check_click key="+this.canonical_key+"->"+id+" checked="+this.checked);
 711             manifold.raise_event(self.options.query_uuid, this.checked?SET_ADD:SET_REMOVED, id);
 712             //return false; // prevent checkbox to be checked, waiting response from manifold plugin api
 713
 714         },
 715
 716         _selectAll: function()
 717         {
 718             // requires jQuery id
 719             var uuid=this.id.split("-");
 720             var oTable=$("#querytable-"+uuid[1]).dataTable();
 721             // Function available in QueryTable 1.9.x
 722             // Filter : displayed data only
 723             var filterData = oTable._('tr', {"filter":"applied"});
 724             /* TODO: WARNING if too many nodes selected, use filters to reduce nuber of nodes */
 725             if(filterData.length<=100){
 726                 $.each(filterData, function(index, obj) {
 727                     var last=$(obj).last();
 728                     var key_value=unfold.get_value(last[0]);
 729                     if(typeof($(last[0]).attr('checked'))=="undefined"){
 730                         $.publish('selected', 'add/'+key_value);
 731                     }
 732                 });
 733             }
 734         },
 735
 736     });
 737
 738     $.plugin('UnivbrisFoam', UnivbrisFoam);
 739
 740   /* define the 'dom-checkbox' type for sorting in datatables
 741      http://datatables.net/examples/plug-ins/dom_sort.html
 742      using trial and error I found that the actual column number
 743      was in fact given as a third argument, and not second
 744      as the various online resources had it - go figure */
 745     $.fn.dataTableExt.afnSortData['dom-checkbox'] = function  ( oSettings, _, iColumn ) {
 746         return $.map( oSettings.oApi._fnGetTrNodes(oSettings), function (tr, i) {
 747             return result=$('td:eq('+iColumn+') input', tr).prop('checked') ? '1' : '0';
 748         } );
 749     }
 750
 751 })(jQuery);
 752