Open-ILS/xul/staff_client/chrome/content/OpenILS/data.js

   1 dump('entering OpenILS/data.js\n');
   2
   3 if (typeof OpenILS == 'undefined') OpenILS = {};
   4 OpenILS.data = function () {
   5
   6         JSAN.use('util.error'); this.error = new util.error();
   7         JSAN.use('util.network'); this.network = new util.network();
   8
   9         return this;
  10 }
  11
  12 OpenILS.data.prototype = {
  13
  14         'list' : {},
  15         'hash' : {},
  16         'tree' : {},
  17
  18         'temp' : '',
  19
  20         'init' : function (params) {
  21
  22                 try {
  23                         if (params && params.via == 'stash') {
  24                                 this.stash_retrieve();
  25                         } else {
  26                                 this.network_retrieve();
  27                         }
  28
  29                 } catch(E) {
  30                         this.error.sdump('D_ERROR','Error in OpenILS.data.init('
  31                                 +js2JSON(params)+'): ' + js2JSON(E) );
  32                 }
  33
  34
  35         },
  36
  37         'stash' : function () {
  38                 try {
  39                         netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
  40                         const OpenILS=new Components.Constructor("@mozilla.org/openils_data_cache;1", "nsIOpenILS");
  41                         var data_cache=new OpenILS( );
  42                         for (var i = 0; i < arguments.length; i++) {
  43                                 try {
  44                                         if (arguments[i] != 'hash' && arguments[i] != 'list') this.error.sdump('D_DATA_STASH','stashing ' + arguments[i] + ' : ' + this[arguments[i]] + (typeof this[arguments[i]] == 'object' ? ' = ' + js2JSON(this[arguments[i]]) : '') + '\n');
  45                                 } catch(F) { alert(F); }
  46                                 data_cache.wrappedJSObject.OpenILS.prototype.data[arguments[i]] = this[arguments[i]];
  47                         }
  48                 } catch(E) {
  49                         this.error.sdump('D_ERROR','Error in OpenILS.data.stash(): ' + js2JSON(E) );
  50                 }
  51         },
  52
  53         'lookup' : function(key,value) {
  54                 try {
  55                         var obj = this; var found;
  56                         if (obj.hash[key] && obj.hash[key][value]) return obj.hash[key][value];
  57                         switch(key) {
  58                                 case 'acpl':
  59                                         found = obj.network.simple_request('FM_ACPL_RETRIEVE_VIA_ID',[ value ]);
  60                                 break;
  61                                 default: return undefined; break;
  62                         }
  63                         if (typeof found.ilsevent != 'undefined') throw(found);
  64                         if (!obj.hash[key]) obj.hash[key] = {};
  65                         obj.hash[key][value] = found; obj.list[key].push( found ); obj.stash('hash','list');
  66                         return found;
  67                 } catch(E) {
  68                         this.error.sdump('D_ERROR','Error in OpenILS.data.lookup('+key+','+value+'): ' + js2JSON(E) );
  69                         return undefined;
  70                 }
  71         },
  72
  73         '_debug_stash' : function() {
  74                 try {
  75                         netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
  76                         const OpenILS=new Components.Constructor("@mozilla.org/openils_data_cache;1", "nsIOpenILS");
  77                         var data_cache=new OpenILS( );
  78                         for (var i in data_cache.wrappedJSObject.OpenILS.prototype.data) {
  79                                 dump('_debug_stash ' + i + '\n');
  80                         }
  81                 } catch(E) {
  82                         this.error.sdump('D_ERROR','Error in OpenILS.data._debug_stash(): ' + js2JSON(E) );
  83                 }
  84         },
  85
  86         '_fm_objects' : {
  87
  88                 'pgt' : [ api.FM_PGT_RETRIEVE.app, api.FM_PGT_RETRIEVE.method, [], true ],
  89                 'cit' : [ api.FM_CIT_RETRIEVE.app, api.FM_CIT_RETRIEVE.method, [], true ],
  90                 'citm' : [ api.FM_CITM_RETRIEVE.app, api.FM_CITM_RETRIEVE.method, [], true ],
  91                 /*
  92                 'cst' : [ api.FM_CST_RETRIEVE.app, api.FM_CST_RETRIEVE.method, [], true ],
  93                 */
  94                 /*
  95                 'acpl' : [ api.FM_ACPL_RETRIEVE.app, api.FM_ACPL_RETRIEVE.method, [], true ],
  96                 */
  97                 'ccs' : [ api.FM_CCS_RETRIEVE.app, api.FM_CCS_RETRIEVE.method, [], true ],
  98                 'aou' : [ api.FM_AOU_RETRIEVE.app, api.FM_AOU_RETRIEVE.method, [], true ],
  99                 'aout' : [ api.FM_AOUT_RETRIEVE.app, api.FM_AOUT_RETRIEVE.method, [], true ],
 100                 'crahp' : [ api.FM_CRAHP_RETRIEVE.app, api.FM_CRAHP_RETRIEVE.method, [], true ],
 101         },
 102
 103         'stash_retrieve' : function() {
 104                 try {
 105                         netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
 106                         const OpenILS=new Components.Constructor("@mozilla.org/openils_data_cache;1", "nsIOpenILS");
 107                         var data_cache=new OpenILS( );
 108                         var dc = data_cache.wrappedJSObject.OpenILS.prototype.data;
 109                         for (var i in dc) {
 110                                 this.error.sdump('D_DATA_RETRIEVE','Retrieving ' + i + ' : ' + dc[i] + '\n');
 111                                 this[i] = dc[i];
 112                         }
 113                         if (typeof this.on_complete == 'function') {
 114
 115                                 this.on_complete();
 116                         }
 117                 } catch(E) {
 118                         this.error.sdump('D_ERROR','Error in OpenILS.data._debug_stash(): ' + js2JSON(E) );
 119                 }
 120         },
 121
 122         'print_list_defaults' : function() {
 123                 var obj = this;
 124                 //if (typeof obj.print_list_templates == 'undefined') {
 125                 {
 126                         obj.print_list_types = [
 127                                 'offline_checkout',
 128                                 'offline_checkin',
 129                                 'offline_renew',
 130                                 'offline_inhouse_use',
 131                                 'items',
 132                                 'bills',
 133                                 'payment',
 134                                 'holds',
 135                                 /* 'patrons' */
 136                         ];
 137                         obj.print_list_templates = {
 138                                 'item_status' : {
 139                                         'type' : 'items',
 140                                         'header' : 'The following items have been examined:<hr/><ol>',
 141                                         'line_item' : '<li>%title%<br/>\r\nBarcode: %barcode%\r\n',
 142                                         'footer' : '</ol><hr />%PINES_CODE% %TODAY_TRIM%<br/>\r\n<br/>\r\n',
 143                                 },
 144                                 'items_out' : {
 145                                         'type' : 'items',
 146                                         'header' : 'Welcome %PATRON_FIRSTNAME%, to %LIBRARY%!<br/>\r\nYou have the following items:<hr/><ol>',
 147                                         'line_item' : '<li>%title%<br/>\r\nBarcode: %barcode% Due: %due_date%\r\n',
 148                                         'footer' : '</ol><hr />%PINES_CODE% %TODAY_TRIM%<br/>\r\nYou were helped by %STAFF_FIRSTNAME% %STAFF_LASTNAME%<br/>\r\n<br/>\r\n',
 149                                 },
 150                                 'checkout' : {
 151                                         'type' : 'items',
 152                                         'header' : 'Welcome %PATRON_FIRSTNAME%, to %LIBRARY%!<br/>\r\nYou checked out the following items:<hr/><ol>',
 153                                         'line_item' : '<li>%title%<br/>\r\nBarcode: %barcode% Due: %due_date%\r\n',
 154                                         'footer' : '</ol><hr />%PINES_CODE% %TODAY_TRIM%<br/>\r\nYou were helped by %STAFF_FIRSTNAME% %STAFF_LASTNAME%<br/>\r\n<br/>\r\n',
 155                                 },
 156                                 'offline_checkout' : {
 157                                         'type' : 'offline_checkout',
 158                                         'header' : 'Patron %patron_barcode%<br/>\r\nYou checked out the following items:<hr/><ol>',
 159                                         'line_item' : '<li>Barcode: %barcode%<br/>\r\nDue: %due_date%\r\n',
 160                                         'footer' : '</ol><hr />%TODAY_TRIM%<br/>\r\n<br/>\r\n',
 161                                 },
 162                                 'checkin' : {
 163                                         'type' : 'items',
 164                                         'header' : 'You checked in the following items:<hr/><ol>',
 165                                         'line_item' : '<li>%title%<br/>\r\nBarcode: %barcode%  Call Number: %call_number%\r\n',
 166                                         'footer' : '</ol><hr />%PINES_CODE% %TODAY_TRIM%<br/>\r\n<br/>\r\n',
 167                                 },
 168                                 'bill_payment' : {
 169                                         'type' : 'payment',
 170                                         'header' : 'Welcome %PATRON_FIRSTNAME%, to %LIBRARY%!<br/>A receipt of your  transaction:<hr/> <table width="100%"> <tr> <td>Original Balance:</td> <td align="right">$%original_balance%</td> </tr> <tr> <td>Payment Method:</td> <td align="right">%payment_type%</td> </tr> <tr> <td>Payment Received:</td> <td align="right">$%payment_received%</td> </tr> <tr> <td>Payment Applied:</td> <td align="right">$%payment_applied%</td> </tr> <tr> <td>Change Given:</td> <td align="right">$%change_given%</td> </tr> <tr> <td>Credit Given:</td> <td align="right">$%credit_given%</td> </tr> <tr> <td>New Balance:</td> <td align="right">$%new_balance%</td> </tr> </table> <p> Note: %note% </p> <p> Specific bills: <blockquote>',
 171                                         'line_item' : 'Bill #%bill_id%  Received: $%payment%<br />',
 172                                         'footer' : '</blockquote> </p> <hr />%PINES_CODE% %TODAY_TRIM%<br/> <br/> ',
 173                                 },
 174                                 'bills_historical' : {
 175                                         'type' : 'bills',
 176                                         'header' : 'Welcome %PATRON_FIRSTNAME%, to %LIBRARY%!<br/>You had the following bills:<hr/><ol>',
 177                                         'line_item' : '<dt><b>Bill #%id%</b></dt> <dd> <table> <tr valign="top"><td>Date:</td><td>%xact_start%</td></tr> <tr valign="top"><td>Type:</td><td>%xact_type%</td></tr> <tr valign="top"><td>Last Billing:</td><td>%last_billing_type%<br/>%last_billing_note%</td></tr> <tr valign="top"><td>Total Billed:</td><td>$%total_owed%</td></tr> <tr valign="top"><td>Last Payment:</td><td>%last_payment_type%<br/>%last_payment_note%</td></tr> <tr valign="top"><td>Total Paid:</td><td>$%total_paid%</td></tr> <tr valign="top"><td><b>Balance:</b></td><td><b>$%balance_owed%</b></td></tr> </table><br/>',
 178                                         'footer' : '</ol><hr />%PINES_CODE% %TODAY_TRIM%<br/>\r\n<br/>\r\n',
 179                                 },
 180                                 'bills_current' : {
 181                                         'type' : 'bills',
 182                                         'header' : 'Welcome %PATRON_FIRSTNAME%, to %LIBRARY%!<br/>You have the following bills:<hr/><ol>',
 183                                         'line_item' : '<dt><b>Bill #%id%</b></dt> <dd> <table> <tr valign="top"><td>Date:</td><td>%xact_start%</td></tr> <tr valign="top"><td>Type:</td><td>%xact_type%</td></tr> <tr valign="top"><td>Last Billing:</td><td>%last_billing_type%<br/>%last_billing_note%</td></tr> <tr valign="top"><td>Total Billed:</td><td>$%total_owed%</td></tr> <tr valign="top"><td>Last Payment:</td><td>%last_payment_type%<br/>%last_payment_note%</td></tr> <tr valign="top"><td>Total Paid:</td><td>$%total_paid%</td></tr> <tr valign="top"><td><b>Balance:</b></td><td><b>$%balance_owed%</b></td></tr> </table><br/>',
 184                                         'footer' : '</ol><hr />%PINES_CODE% %TODAY_TRIM%<br/>\r\n<br/>\r\n',
 185                                 },
 186                                 'offline_checkin' : {
 187                                         'type' : 'offline_checkin',
 188                                         'header' : 'You checked in the following items:<hr/><ol>',
 189                                         'line_item' : '<li>Barcode: %barcode%\r\n',
 190                                         'footer' : '</ol><hr />%TODAY_TRIM%<br/>\r\n<br/>\r\n',
 191                                 },
 192                                 'offline_renew' : {
 193                                         'type' : 'offline_renew',
 194                                         'header' : 'You renewed the following items:<hr/><ol>',
 195                                         'line_item' : '<li>Barcode: %barcode%\r\n',
 196                                         'footer' : '</ol><hr />%TODAY_TRIM%<br/>\r\n<br/>\r\n',
 197                                 },
 198                                 'offline_inhouse_use' : {
 199                                         'type' : 'offline_inhouse_use',
 200                                         'header' : 'You marked the following in-house items used:<hr/><ol>',
 201                                         'line_item' : '<li>Barcode: %barcode%\r\nUses: %count%',
 202                                         'footer' : '</ol><hr />%TODAY_TRIM%<br/>\r\n<br/>\r\n',
 203                                 },
 204                                 'in_house_use' : {
 205                                         'type' : 'items',
 206                                         'header' : 'You marked the following in-house items used:<hr/><ol>',
 207                                         'line_item' : '<li>Barcode: %barcode%\r\nUses: %uses%\r\n<br />%alert_message%',
 208                                         'footer' : '</ol><hr />%TODAY_TRIM%<br/>\r\n<br/>\r\n',
 209                                 },
 210                                 'holds' : {
 211                                         'type' : 'holds',
 212                                         'header' : 'Welcome %PATRON_FIRSTNAME%, to %LIBRARY%!<br/>\r\nYou have the following titles on hold:<hr/><ol>',
 213                                         'line_item' : '<li>%title%\r\n',
 214                                         'footer' : '</ol><hr />%PINES_CODE% %TODAY_TRIM%<br/>\r\nYou were helped by %STAFF_FIRSTNAME% %STAFF_LASTNAME%<br/>\r\n<br/>\r\n',
 215                                 }
 216                         };
 217
 218                         obj.stash( 'print_list_templates', 'print_list_types' );
 219                 }
 220         },
 221
 222         'network_retrieve' : function() {
 223                 netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
 224                 var obj = this;
 225
 226
 227                 JSAN.use('util.file'); var file = new util.file('print_list_templates');
 228                 obj.print_list_defaults();
 229                 if (file._file.exists()) {
 230                         try {
 231                                 var x = file.get_object();
 232                                 if (x) {
 233                                         for (var i in x) {
 234                                                 obj.print_list_templates[i] = x[i];
 235                                         }
 236                                         obj.stash('print_list_templates');
 237                                 }
 238                         } catch(E) {
 239                                 alert(E);
 240                         }
 241                 }
 242                 file.close();
 243
 244                 JSAN.use('util.file');
 245                 JSAN.use('util.functional');
 246                 JSAN.use('util.fm_utils');
 247
 248                 function gen_fm_retrieval_func(classname,data) {
 249                         var app = data[0]; var method = data[1]; var params = data[2]; var cacheable = data[3];
 250                         return function () {
 251                                 netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
 252
 253                                 function convert() {
 254                                         netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
 255                                         try {
 256                                                 if (obj.list[classname].constructor.name == 'Array') {
 257                                                         obj.hash[classname] =
 258                                                                 util.functional.convert_object_list_to_hash(
 259                                                                         obj.list[classname]
 260                                                                 );
 261                                                 }
 262                                         } catch(E) {
 263
 264                                                 obj.error.sdump('D_ERROR',E + '\n');
 265                                         }
 266
 267                                 }
 268
 269                                 try {
 270                                         var level = obj.error.sdump_levels.D_SES_RESULT;
 271                                         if (classname == 'aou' || classname == 'my_aou')
 272                                                 obj.error.sdump_levels.D_SES_RESULT = false;
 273                                         var robj = obj.network.request( app, method, params);
 274                                         if (!robj || robj.ilsevent) {
 275                                                 obj.error.standard_unexpected_error_alert('The staff client failed to retrieve expected data from this call, "' + method + '"',robj);
 276                                                 throw(robj);
 277                                         }
 278                                         obj.list[classname] = robj;
 279                                         obj.error.sdump_levels.D_SES_RESULT = level;
 280                                         convert();
 281                                         // if cacheable, store an offline copy
 282                                         /* FIXME -- we're going to revisit caching and do it differently
 283                                         if (cacheable) {
 284                                                 var file = new util.file( classname );
 285                                                 file.set_object( obj.list[classname] );
 286                                         }
 287                                         */
 288
 289                                 } catch(E) {
 290                                         // if cacheable, try offline
 291                                         if (cacheable) {
 292                                                 /* FIXME -- we're going to revisit caching and do it differently
 293                                                 try {
 294                                                         var file = new util.file( classname );
 295                                                         obj.list[classname] = file.get_object(); file.close();
 296                                                         convert();
 297                                                 } catch(E) {
 298                                                         throw(E);
 299                                                 }
 300                                                 */
 301                                                 throw(E); // for now
 302                                         } else {
 303                                                 throw(E); // for now
 304                                         }
 305                                 }
 306                         }
 307                 }
 308
 309                 this.chain = [];
 310
 311                 this.chain.push(
 312                         function() {
 313                                 var f = gen_fm_retrieval_func(
 314                                         'cnal',
 315                                         [
 316                                                 api.FM_CNAL_RETRIEVE.app,
 317                                                 api.FM_CNAL_RETRIEVE.method,
 318                                                 [ obj.session.key ],
 319                                                 false
 320                                         ]
 321                                 );
 322                                 try {
 323                                         f();
 324                                 } catch(E) {
 325                                         var error = 'Error: ' + js2JSON(E);
 326                                         obj.error.sdump('D_ERROR',error);
 327                                         throw(E);
 328                                 }
 329                         }
 330                 );
 331
 332                 this.chain.push(
 333                         function() {
 334                                 var f = gen_fm_retrieval_func(
 335                                         'au',
 336                                         [
 337                                                 api.FM_AU_RETRIEVE_VIA_SESSION.app,
 338                                                 api.FM_AU_RETRIEVE_VIA_SESSION.method,
 339                                                 [ obj.session.key ],
 340                                                 false
 341                                         ]
 342                                 );
 343                                 try {
 344                                         f();
 345                                 } catch(E) {
 346                                         var error = 'Error: ' + js2JSON(E);
 347                                         obj.error.sdump('D_ERROR',error);
 348                                         throw(E);
 349                                 }
 350                                 obj.list.au = [ obj.list.au ];
 351                         }
 352                 );
 353
 354                 this.chain.push(
 355                         function() {
 356                                 netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
 357                                 var f = gen_fm_retrieval_func(
 358                                         'my_asv',
 359                                         [
 360                                                 api.FM_ASV_RETRIEVE_REQUIRED.app,
 361                                                 api.FM_ASV_RETRIEVE_REQUIRED.method,
 362                                                 [ obj.session.key ],
 363                                                 true
 364                                         ]
 365                                 );
 366                                 try {
 367                                         netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
 368                                         f();
 369                                 } catch(E) {
 370                                         var error = 'Error: ' + js2JSON(E);
 371                                         obj.error.sdump('D_ERROR',error);
 372                                         throw(E);
 373                                 }
 374                         }
 375                 );
 376
 377                 this.chain.push(
 378                         function() {
 379                                 netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
 380                                 var f = gen_fm_retrieval_func(
 381                                         'asv',
 382                                         [
 383                                                 api.FM_ASV_RETRIEVE.app,
 384                                                 api.FM_ASV_RETRIEVE.method,
 385                                                 [ obj.session.key ],
 386                                                 true
 387                                         ]
 388                                 );
 389                                 try {
 390                                         netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
 391                                         f();
 392                                 } catch(E) {
 393                                         var error = 'Error: ' + js2JSON(E);
 394                                         obj.error.sdump('D_ERROR',error);
 395                                         throw(E);
 396                                 }
 397                         }
 398                 );
 399
 400                 obj.error.sdump('D_DEBUG','_fm_objects = ' + js2JSON(this._fm_objects) + '\n');
 401
 402                 for (var i in this._fm_objects) {
 403                         this.chain.push( gen_fm_retrieval_func(i,this._fm_objects[i]) );
 404                 }
 405
 406                 // The previous org_tree call returned a tree, not a list or hash.
 407                 this.chain.push(
 408                         function () {
 409                                 obj.tree.aou = obj.list.aou;
 410                                 obj.list.aou = util.fm_utils.flatten_ou_branch( obj.tree.aou );
 411                                 obj.hash.aou = util.functional.convert_object_list_to_hash( obj.list.aou );
 412                         }
 413                 );
 414
 415                 // The previous pgt call returned a tree, not a list or hash.
 416                 this.chain.push(
 417                         function () {
 418                                 obj.tree.pgt = obj.list.pgt;
 419                                 obj.list.pgt = util.fm_utils.flatten_ou_branch( obj.tree.pgt );
 420                                 obj.hash.pgt = util.functional.convert_object_list_to_hash( obj.list.pgt );
 421                         }
 422                 );
 423
 424                 // Do this after we get the user object
 425                 this.chain.push(
 426
 427                         function() {
 428
 429                                 gen_fm_retrieval_func('my_aou',
 430                                         [
 431                                                 api.FM_AOU_RETRIEVE_RELATED_VIA_SESSION.app,
 432                                                 api.FM_AOU_RETRIEVE_RELATED_VIA_SESSION.method,
 433                                                 [ obj.session.key, obj.list.au[0].ws_ou() ], /* use ws_ou and not home_ou */
 434                                                 true
 435                                         ]
 436                                 )();
 437                         }
 438                 );
 439
 440                 this.chain.push(
 441
 442                         function () {
 443
 444                                 gen_fm_retrieval_func( 'my_actsc',
 445                                         [
 446                                                 api.FM_ACTSC_RETRIEVE_VIA_AOU.app,
 447                                                 api.FM_ACTSC_RETRIEVE_VIA_AOU.method,
 448                                                 [ obj.session.key, obj.list.au[0].ws_ou() ],
 449                                                 true
 450                                         ]
 451                                 )();
 452                         }
 453                 );
 454
 455                 this.chain.push(
 456
 457                         function () {
 458
 459                                 gen_fm_retrieval_func( 'my_asc',
 460                                         [
 461                                                 api.FM_ASC_RETRIEVE_VIA_AOU.app,
 462                                                 api.FM_ASC_RETRIEVE_VIA_AOU.method,
 463                                                 [ obj.session.key, obj.list.au[0].ws_ou() ],
 464                                                 true
 465                                         ]
 466                                 )();
 467                         }
 468                 );
 469
 470
 471                 this.chain.push(
 472                         function() {
 473                                 var f = gen_fm_retrieval_func(
 474                                         'cnct',
 475                                         [
 476                                                 api.FM_CNCT_RETRIEVE.app,
 477                                                 api.FM_CNCT_RETRIEVE.method,
 478                                                 [ obj.list.au[0].ws_ou() ],
 479                                                 false
 480                                         ]
 481                                 );
 482                                 try {
 483                                         f();
 484                                 } catch(E) {
 485                                         var error = 'Error: ' + js2JSON(E);
 486                                         obj.error.sdump('D_ERROR',error);
 487                                         throw(E);
 488                                 }
 489                         }
 490                 );
 491
 492                 this.chain.push(
 493                         function() {
 494                                 var f = gen_fm_retrieval_func(
 495                                         'acpl',
 496                                         [
 497                                                 api.FM_ACPL_RETRIEVE.app,
 498                                                 api.FM_ACPL_RETRIEVE.method,
 499                                                 [ obj.list.au[0].ws_ou() ],
 500                                                 false
 501                                         ]
 502                                 );
 503                                 try {
 504                                         f();
 505                                 } catch(E) {
 506                                         var error = 'Error: ' + js2JSON(E);
 507                                         obj.error.sdump('D_ERROR',error);
 508                                         throw(E);
 509                                 }
 510                         }
 511                 );
 512
 513
 514
 515                 if (typeof this.on_complete == 'function') {
 516
 517                         this.chain.push( this.on_complete );
 518                 }
 519                 JSAN.use('util.exec'); this.exec = new util.exec();
 520                 this.exec.on_error = function(E) {
 521
 522                         if (typeof obj.on_error == 'function') {
 523                                 obj.on_error();
 524                         } else {
 525                                 alert('oops: ' + E );
 526                         }
 527
 528                         return false; /* break chain */
 529                 }
 530
 531                 this.exec.chain( this.chain );
 532
 533         }
 534 }
 535
 536 dump('exiting OpenILS/data.js\n');