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authormensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f>2008-11-13 09:49:11 +0000
committermensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f>2008-11-13 09:49:11 +0000
commite44a7e37b6c7b5961adaffc62b9042b8d442938e (patch)
tree95b67c356e93163467db2451f2b8cce84ed5d582 /includes/js/dojox/grid/_data/model.js
parenta62b9742ee5e28bcec6872d88f50f25b820914f6 (diff)
downloadsemanticscuttle-e44a7e37b6c7b5961adaffc62b9042b8d442938e.tar.gz
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New feature: basic Ajax suggestion for tags and implementation of Dojo toolkit
git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@151 b3834d28-1941-0410-a4f8-b48e95affb8f
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+if(!dojo._hasResource['dojox.grid._data.model']){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
+dojo._hasResource['dojox.grid._data.model'] = true;
+dojo.provide('dojox.grid._data.model');
+dojo.require('dojox.grid._data.fields');
+
+dojo.declare("dojox.grid.data.Model", null, {
+ // summary:
+ // Base abstract grid data model.
+ // Makes no assumptions about the structure of grid data.
+ constructor: function(inFields, inData){
+ this.observers = [];
+ this.fields = new dojox.grid.data.Fields();
+ if(inFields){
+ this.fields.set(inFields);
+ }
+ this.setData(inData);
+ },
+ count: 0,
+ updating: 0,
+ // observers
+ observer: function(inObserver, inPrefix){
+ this.observers.push({o: inObserver, p: inPrefix||'model' });
+ },
+ notObserver: function(inObserver){
+ for(var i=0, m, o; (o=this.observers[i]); i++){
+ if(o.o==inObserver){
+ this.observers.splice(i, 1);
+ return;
+ }
+ }
+ },
+ notify: function(inMsg, inArgs){
+ if(!this.isUpdating()){
+ var a = inArgs || [];
+ for(var i=0, m, o; (o=this.observers[i]); i++){
+ m = o.p + inMsg; o = o.o;
+ (m in o)&&(o[m].apply(o, a));
+ }
+ }
+ },
+ // updates
+ clear: function(){
+ this.fields.clear();
+ this.clearData();
+ },
+ beginUpdate: function(){
+ this.updating++;
+ },
+ endUpdate: function(){
+ if(this.updating){
+ this.updating--;
+ }
+ /*if(this.updating){
+ if(!(--this.updating)){
+ this.change();
+ }
+ }
+ }*/
+ },
+ isUpdating: function(){
+ return Boolean(this.updating);
+ },
+ // data
+ clearData: function(){
+ this.setData(null);
+ },
+ // observer events
+ change: function(){
+ this.notify("Change", arguments);
+ },
+ insertion: function(/* index */){
+ this.notify("Insertion", arguments);
+ this.notify("Change", arguments);
+ },
+ removal: function(/* keys */){
+ this.notify("Removal", arguments);
+ this.notify("Change", arguments);
+ },
+ // insert
+ insert: function(inData /*, index */){
+ if(!this._insert.apply(this, arguments)){
+ return false;
+ }
+ this.insertion.apply(this, dojo._toArray(arguments, 1));
+ return true;
+ },
+ // remove
+ remove: function(inData /*, index */){
+ if(!this._remove.apply(this, arguments)){
+ return false;
+ }
+ this.removal.apply(this, arguments);
+ return true;
+ },
+ // sort
+ canSort: function(/* (+|-)column_index+1, ... */){
+ return this.sort != null;
+ },
+ generateComparator: function(inCompare, inField, inTrueForAscend, inSubCompare){
+ return function(a, b){
+ var ineq = inCompare(a[inField], b[inField]);
+ return ineq ? (inTrueForAscend ? ineq : -ineq) : inSubCompare && inSubCompare(a, b);
+ }
+ },
+ makeComparator: function(inIndices){
+ var idx, col, field, result = null;
+ for(var i=inIndices.length-1; i>=0; i--){
+ idx = inIndices[i];
+ col = Math.abs(idx) - 1;
+ if(col >= 0){
+ field = this.fields.get(col);
+ result = this.generateComparator(field.compare, field.key, idx > 0, result);
+ }
+ }
+ return result;
+ },
+ sort: null,
+ dummy: 0
+});
+
+dojo.declare("dojox.grid.data.Rows", dojox.grid.data.Model, {
+ // observer events
+ allChange: function(){
+ this.notify("AllChange", arguments);
+ this.notify("Change", arguments);
+ },
+ rowChange: function(){
+ this.notify("RowChange", arguments);
+ },
+ datumChange: function(){
+ this.notify("DatumChange", arguments);
+ },
+ // copyRow: function(inRowIndex); // abstract
+ // update
+ beginModifyRow: function(inRowIndex){
+ if(!this.cache[inRowIndex]){
+ this.cache[inRowIndex] = this.copyRow(inRowIndex);
+ }
+ },
+ endModifyRow: function(inRowIndex){
+ var cache = this.cache[inRowIndex];
+ if(cache){
+ var data = this.getRow(inRowIndex);
+ if(!dojox.grid.arrayCompare(cache, data)){
+ this.update(cache, data, inRowIndex);
+ }
+ delete this.cache[inRowIndex];
+ }
+ },
+ cancelModifyRow: function(inRowIndex){
+ var cache = this.cache[inRowIndex];
+ if(cache){
+ this.setRow(cache, inRowIndex);
+ delete this.cache[inRowIndex];
+ }
+ }
+});
+
+dojo.declare("dojox.grid.data.Table", dojox.grid.data.Rows, {
+ // summary:
+ // Basic grid data model for static data in the form of an array of rows
+ // that are arrays of cell data
+ constructor: function(){
+ this.cache = [];
+ },
+ colCount: 0, // tables introduce cols
+ data: null,
+ cache: null,
+ // morphology
+ measure: function(){
+ this.count = this.getRowCount();
+ this.colCount = this.getColCount();
+ this.allChange();
+ //this.notify("Measure");
+ },
+ getRowCount: function(){
+ return (this.data ? this.data.length : 0);
+ },
+ getColCount: function(){
+ return (this.data && this.data.length ? this.data[0].length : this.fields.count());
+ },
+ badIndex: function(inCaller, inDescriptor){
+ console.debug('dojox.grid.data.Table: badIndex');
+ },
+ isGoodIndex: function(inRowIndex, inColIndex){
+ return (inRowIndex >= 0 && inRowIndex < this.count && (arguments.length < 2 || (inColIndex >= 0 && inColIndex < this.colCount)));
+ },
+ // access
+ getRow: function(inRowIndex){
+ return this.data[inRowIndex];
+ },
+ copyRow: function(inRowIndex){
+ return this.getRow(inRowIndex).slice(0);
+ },
+ getDatum: function(inRowIndex, inColIndex){
+ return this.data[inRowIndex][inColIndex];
+ },
+ get: function(){
+ throw('Plain "get" no longer supported. Use "getRow" or "getDatum".');
+ },
+ setData: function(inData){
+ this.data = (inData || []);
+ this.allChange();
+ },
+ setRow: function(inData, inRowIndex){
+ this.data[inRowIndex] = inData;
+ this.rowChange(inData, inRowIndex);
+ this.change();
+ },
+ setDatum: function(inDatum, inRowIndex, inColIndex){
+ this.data[inRowIndex][inColIndex] = inDatum;
+ this.datumChange(inDatum, inRowIndex, inColIndex);
+ },
+ set: function(){
+ throw('Plain "set" no longer supported. Use "setData", "setRow", or "setDatum".');
+ },
+ setRows: function(inData, inRowIndex){
+ for(var i=0, l=inData.length, r=inRowIndex; i<l; i++, r++){
+ this.setRow(inData[i], r);
+ }
+ },
+ // update
+ update: function(inOldData, inNewData, inRowIndex){
+ //delete this.cache[inRowIndex];
+ //this.setRow(inNewData, inRowIndex);
+ return true;
+ },
+ // insert
+ _insert: function(inData, inRowIndex){
+ dojox.grid.arrayInsert(this.data, inRowIndex, inData);
+ this.count++;
+ return true;
+ },
+ // remove
+ _remove: function(inKeys){
+ for(var i=inKeys.length-1; i>=0; i--){
+ dojox.grid.arrayRemove(this.data, inKeys[i]);
+ }
+ this.count -= inKeys.length;
+ return true;
+ },
+ // sort
+ sort: function(/* (+|-)column_index+1, ... */){
+ this.data.sort(this.makeComparator(arguments));
+ },
+ swap: function(inIndexA, inIndexB){
+ dojox.grid.arraySwap(this.data, inIndexA, inIndexB);
+ this.rowChange(this.getRow(inIndexA), inIndexA);
+ this.rowChange(this.getRow(inIndexB), inIndexB);
+ this.change();
+ },
+ dummy: 0
+});
+
+dojo.declare("dojox.grid.data.Objects", dojox.grid.data.Table, {
+ constructor: function(inFields, inData, inKey){
+ if(!inFields){
+ this.autoAssignFields();
+ }
+ },
+ allChange: function(){
+ this.notify("FieldsChange");
+ this.inherited(arguments);
+ },
+ autoAssignFields: function(){
+ var d = this.data[0], i = 0, field;
+ for(var f in d){
+ field = this.fields.get(i++);
+ if (!dojo.isString(field.key)){
+ field.key = f;
+ }
+ }
+ },
+ setData: function(inData){
+ this.data = (inData || []);
+ this.autoAssignFields();
+ this.allChange();
+ },
+ getDatum: function(inRowIndex, inColIndex){
+ return this.data[inRowIndex][this.fields.get(inColIndex).key];
+ }
+});
+
+dojo.declare("dojox.grid.data.Dynamic", dojox.grid.data.Table, {
+ // summary:
+ // Grid data model for dynamic data such as data retrieved from a server.
+ // Retrieves data automatically when requested and provides notification when data is received
+ constructor: function(){
+ this.page = [];
+ this.pages = [];
+ },
+ page: null,
+ pages: null,
+ rowsPerPage: 100,
+ requests: 0,
+ bop: -1,
+ eop: -1,
+ // data
+ clearData: function(){
+ this.pages = [];
+ this.bop = this.eop = -1;
+ this.setData([]);
+ },
+ getRowCount: function(){
+ return this.count;
+ },
+ getColCount: function(){
+ return this.fields.count();
+ },
+ setRowCount: function(inCount){
+ this.count = inCount;
+ this.change();
+ },
+ // paging
+ requestsPending: function(inBoolean){
+ },
+ rowToPage: function(inRowIndex){
+ return (this.rowsPerPage ? Math.floor(inRowIndex / this.rowsPerPage) : inRowIndex);
+ },
+ pageToRow: function(inPageIndex){
+ return (this.rowsPerPage ? this.rowsPerPage * inPageIndex : inPageIndex);
+ },
+ requestRows: function(inRowIndex, inCount){
+ // summary:
+ // stub. Fill in to perform actual data row fetching logic. The
+ // returning logic must provide the data back to the system via
+ // setRow
+ },
+ rowsProvided: function(inRowIndex, inCount){
+ this.requests--;
+ if(this.requests == 0){
+ this.requestsPending(false);
+ }
+ },
+ requestPage: function(inPageIndex){
+ var row = this.pageToRow(inPageIndex);
+ var count = Math.min(this.rowsPerPage, this.count - row);
+ if(count > 0){
+ this.requests++;
+ this.requestsPending(true);
+ setTimeout(dojo.hitch(this, "requestRows", row, count), 1);
+ //this.requestRows(row, count);
+ }
+ },
+ needPage: function(inPageIndex){
+ if(!this.pages[inPageIndex]){
+ this.pages[inPageIndex] = true;
+ this.requestPage(inPageIndex);
+ }
+ },
+ preparePage: function(inRowIndex, inColIndex){
+ if(inRowIndex < this.bop || inRowIndex >= this.eop){
+ var pageIndex = this.rowToPage(inRowIndex);
+ this.needPage(pageIndex);
+ this.bop = pageIndex * this.rowsPerPage;
+ this.eop = this.bop + (this.rowsPerPage || this.count);
+ }
+ },
+ isRowLoaded: function(inRowIndex){
+ return Boolean(this.data[inRowIndex]);
+ },
+ // removal
+ removePages: function(inRowIndexes){
+ for(var i=0, r; ((r=inRowIndexes[i]) != undefined); i++){
+ this.pages[this.rowToPage(r)] = false;
+ }
+ this.bop = this.eop =-1;
+ },
+ remove: function(inRowIndexes){
+ this.removePages(inRowIndexes);
+ dojox.grid.data.Table.prototype.remove.apply(this, arguments);
+ },
+ // access
+ getRow: function(inRowIndex){
+ var row = this.data[inRowIndex];
+ if(!row){
+ this.preparePage(inRowIndex);
+ }
+ return row;
+ },
+ getDatum: function(inRowIndex, inColIndex){
+ var row = this.getRow(inRowIndex);
+ return (row ? row[inColIndex] : this.fields.get(inColIndex).na);
+ },
+ setDatum: function(inDatum, inRowIndex, inColIndex){
+ var row = this.getRow(inRowIndex);
+ if(row){
+ row[inColIndex] = inDatum;
+ this.datumChange(inDatum, inRowIndex, inColIndex);
+ }else{
+ console.debug('[' + this.declaredClass + '] dojox.grid.data.dynamic.set: cannot set data on an non-loaded row');
+ }
+ },
+ // sort
+ canSort: function(){
+ return false;
+ }
+});
+
+// FIXME: deprecated: (included for backward compatibility only)
+dojox.grid.data.table = dojox.grid.data.Table;
+dojox.grid.data.dynamic = dojox.grid.data.Dynamic;
+
+// we treat dojo.data stores as dynamic stores because no matter how they got
+// here, they should always fill that contract
+dojo.declare("dojox.grid.data.DojoData", dojox.grid.data.Dynamic, {
+ // summary:
+ // A grid data model for dynamic data retreived from a store which
+ // implements the dojo.data API set. Retrieves data automatically when
+ // requested and provides notification when data is received
+ // description:
+ // This store subclasses the Dynamic grid data object in order to
+ // provide paginated data access support, notification and view
+ // updates for stores which support those features, and simple
+ // field/column mapping for all dojo.data stores.
+ constructor: function(inFields, inData, args){
+ this.count = 1;
+ this._rowIdentities = {};
+ this._currentlyProcessing = [];
+ if(args){
+ dojo.mixin(this, args);
+ }
+ if(this.store){
+ var f = this.store.getFeatures();
+ this._canNotify = f['dojo.data.api.Notification'];
+ this._canWrite = f['dojo.data.api.Write'];
+ this._canIdentify = f['dojo.data.api.Identity'];
+ if(this._canNotify){
+ dojo.connect(this.store, "onSet", this, "_storeDatumChange");
+ dojo.connect(this.store, "onDelete", this, "_storeDatumDelete");
+ dojo.connect(this.store, "onNew", this, "_storeDatumNew");
+ }
+ if(this._canWrite) {
+ dojo.connect(this.store, "revert", this, "refresh");
+ }
+ }
+ },
+ markupFactory: function(args, node){
+ return new dojox.grid.data.DojoData(null, null, args);
+ },
+ query: { name: "*" }, // default, stupid query
+ store: null,
+ _currentlyProcessing: null,
+ _canNotify: false,
+ _canWrite: false,
+ _canIdentify: false,
+ _rowIdentities: {},
+ clientSort: false,
+ sortFields: null,
+ queryOptions: null,
+
+ // data
+ setData: function(inData){
+ this.store = inData;
+ this.data = [];
+ this.allChange();
+ },
+ setRowCount: function(inCount){
+ //console.debug("inCount:", inCount);
+ this.count = inCount;
+ this.allChange();
+ },
+ beginReturn: function(inCount){
+ if(this.count != inCount){
+ // this.setRowCount(0);
+ // this.clear();
+ // console.debug(this.count, inCount);
+ this.setRowCount(inCount);
+ }
+ },
+ _setupFields: function(dataItem){
+ // abort if we already have setup fields
+ if(this.fields._nameMaps){
+ return;
+ }
+ // set up field/index mappings
+ var m = {};
+ //console.debug("setting up fields", m);
+ var fields = dojo.map(this.store.getAttributes(dataItem),
+ function(item, idx){
+ m[item] = idx;
+ m[idx+".idx"] = item;
+ // name == display name, key = property name
+ return { name: item, key: item };
+ },
+ this
+ );
+ this.fields._nameMaps = m;
+ // console.debug("new fields:", fields);
+ this.fields.set(fields);
+ this.notify("FieldsChange");
+ },
+ _getRowFromItem: function(item){
+ // gets us the row object (and row index) of an item
+ },
+ _createRow: function(item){
+ var row = {};
+ row.__dojo_data_item = item;
+ dojo.forEach(this.fields.values, function(a){
+ value = this.store.getValue(item, a.name);
+ row[a.name] = (value === undefined || value === null)?"":value;
+ }, this);
+ return row;
+ },
+ processRows: function(items, request){
+ // console.debug(arguments);
+ if(!items || items.length == 0){ return; }
+ this._setupFields(items[0]);
+ dojo.forEach(items, function(item, idx){
+ var row = this._createRow(item);
+ this._setRowId(item, request.start, idx);
+ this.setRow(row, request.start+idx);
+ }, this);
+ // FIXME:
+ // Q: scott, steve, how the hell do we actually get this to update
+ // the visible UI for these rows?
+ // A: the goal is that Grid automatically updates to reflect changes
+ // in model. In this case, setRow -> rowChanged -> (observed by) Grid -> modelRowChange -> updateRow
+ },
+ // request data
+ requestRows: function(inRowIndex, inCount){
+ var row = inRowIndex || 0;
+ var params = {
+ start: row,
+ count: this.rowsPerPage,
+ query: this.query,
+ sort: this.sortFields,
+ queryOptions: this.queryOptions,
+ onBegin: dojo.hitch(this, "beginReturn"),
+ onComplete: dojo.hitch(this, "processRows"), // add to deferred?
+ onError: dojo.hitch(this, "processError")
+ };
+ this.store.fetch(params);
+ },
+ getDatum: function(inRowIndex, inColIndex){
+ //console.debug("getDatum", inRowIndex, inColIndex);
+ var row = this.getRow(inRowIndex);
+ var field = this.fields.values[inColIndex];
+ return row && field ? row[field.name] : field ? field.na : '?';
+ //var idx = row && this.fields._nameMaps[inColIndex+".idx"];
+ //return (row ? row[idx] : this.fields.get(inColIndex).na);
+ },
+ setDatum: function(inDatum, inRowIndex, inColIndex){
+ var n = this.fields._nameMaps[inColIndex+".idx"];
+ // console.debug("setDatum:", "n:"+n, inDatum, inRowIndex, inColIndex);
+ if(n){
+ this.data[inRowIndex][n] = inDatum;
+ this.datumChange(inDatum, inRowIndex, inColIndex);
+ }
+ },
+ // modification, update and store eventing
+ copyRow: function(inRowIndex){
+ var row = {};
+ var backstop = {};
+ var src = this.getRow(inRowIndex);
+ for(var x in src){
+ if(src[x] != backstop[x]){
+ row[x] = src[x];
+ }
+ }
+ return row;
+ },
+ _attrCompare: function(cache, data){
+ dojo.forEach(this.fields.values, function(a){
+ if(cache[a.name] != data[a.name]){ return false; }
+ }, this);
+ return true;
+ },
+ endModifyRow: function(inRowIndex){
+ var cache = this.cache[inRowIndex];
+ if(cache){
+ var data = this.getRow(inRowIndex);
+ if(!this._attrCompare(cache, data)){
+ this.update(cache, data, inRowIndex);
+ }
+ delete this.cache[inRowIndex];
+ }
+ },
+ cancelModifyRow: function(inRowIndex){
+ // console.debug("cancelModifyRow", arguments);
+ var cache = this.cache[inRowIndex];
+ if(cache){
+ this.setRow(cache, inRowIndex);
+ delete this.cache[inRowIndex];
+ }
+ },
+ _setRowId: function(item, offset, idx){
+ // FIXME: where else do we need to keep this in sync?
+ //Handle stores that implement identity and try to handle those that do not.
+ if (this._canIdentify) {
+ this._rowIdentities[this.store.getIdentity(item)] = {rowId: offset+idx, item: item};
+ }else{
+ var identity = dojo.toJson(this.query) + ":start:" + offset + ":idx:" + idx + ":sort:" + dojo.toJson(this.sortFields);
+ this._rowIdentities[identity] = {rowId: offset+idx, item: item};
+ }
+ },
+ _getRowId: function(item, isNotItem){
+ // summary:
+ // Function determine the row index for a particular item
+ // item:
+ // The store item to examine to determine row index.
+ // isNotItem:
+ // Boolean flag to indicate if the item passed is a store item or not.
+ var rowId = null;
+ //Handle identity and nonidentity capable stores.
+ if(this._canIdentify && !isNotItem){
+ rowId = this._rowIdentities[this.store.getIdentity(item)].rowId;
+ }else{
+ //Not efficient, but without identity support,
+ //not a better way to do it. Basically, do our best to locate it
+ //This may or may not work, but best we can do here.
+ var id;
+ for(id in this._rowIdentities){
+ if(this._rowIdentities[id].item === item){
+ rowId = this._rowIdentities[id].rowId;
+ break;
+ }
+ }
+ }
+ return rowId;
+ },
+ _storeDatumChange: function(item, attr, oldVal, newVal){
+ // the store has changed some data under us, need to update the display
+ var rowId = this._getRowId(item);
+ var row = this.getRow(rowId);
+ if(row){
+ row[attr] = newVal;
+ var colId = this.fields._nameMaps[attr];
+ this.notify("DatumChange", [ newVal, rowId, colId ]);
+ }
+ },
+ _storeDatumDelete: function(item){
+ if(dojo.indexOf(this._currentlyProcessing, item) != -1)
+ return;
+ // the store has deleted some item under us, need to remove that item from
+ // the view if possible. It may be the deleted item isn't even in the grid.
+ var rowId = this._getRowId(item, true);
+ if(rowId != null){
+ this._removeItems([rowId]);
+ }
+ },
+ _storeDatumNew: function(item){
+ if(this._disableNew){
+ return;
+ }
+ // the store has added some item under us, need to add it to the view.
+ this._insertItem(item, this.data.length);
+ },
+ insert: function(item, index){
+ // Push the given item back to the store
+ this._disableNew = true;
+ var i = this.store.newItem(item);
+ this._disableNew = false;
+ this._insertItem(i, index);
+ },
+ _insertItem: function(storeItem, index){
+ // Set up our fields if we haven't already
+ if(!this.fields._nameMaps){
+ this._setupFields(storeItem);
+ }
+ var row = this._createRow(storeItem);
+ for(var i in this._rowIdentities){ //increment all the remaining row ids up one
+ var rowIdentity = this._rowIdentities[i];
+ if(rowIdentity.rowId >= index){
+ rowIdentity.rowId++;
+ }
+ }
+ this._setRowId(storeItem, 0, index);
+ dojox.grid.data.Dynamic.prototype.insert.apply(this, [row, index]);
+ },
+ datumChange: function(value, rowIdx, colIdx){
+ if(this._canWrite){
+ // we're chaning some data, which means we need to write back
+ var row = this.getRow(rowIdx);
+ var field = this.fields._nameMaps[colIdx+".idx"];
+ this.store.setValue(row.__dojo_data_item, field, value);
+ // we don't need to call DatumChange, an eventing store will tell
+ // us about the row change events
+ }else{
+ // we can't write back, so just go ahead and change our local copy
+ // of the data
+ this.notify("DatumChange", arguments);
+ }
+ },
+ insertion: function(/* index */){
+ console.debug("Insertion", arguments);
+ this.notify("Insertion", arguments);
+ this.notify("Change", arguments);
+ },
+ removal: function(/* keys */){
+ console.debug("Removal", arguments);
+ this.notify("Removal", arguments);
+ this.notify("Change", arguments);
+ },
+ remove: function(inRowIndexes){
+ // summary:
+ // Function to remove a set of items from the store based on the row index.
+ // inRowIndexes:
+ // An array of row indexes from the grid to remove from the store.
+ /* Call delete on the store */
+ for(var i=inRowIndexes.length-1; i>=0; i--){
+ // Need to find the item, then remove each from the data store
+ var item = this.data[inRowIndexes[i]].__dojo_data_item;
+ this._currentlyProcessing.push(item);
+ this.store.deleteItem(item);
+ }
+ /* Remove from internal data structure and the view */
+ this._removeItems(inRowIndexes);
+ this._currentlyProcessing = [];
+ },
+ _removeItems: function(inRowIndexes /*array*/){
+ // summary:
+ // Function to remove a set of items from the store based on the row index.
+ // inRowIndexes:
+ // An array of row indexes from the grid to remove from the store.
+ dojox.grid.data.Dynamic.prototype.remove.apply(this, arguments);
+ // Rebuild _rowIdentities
+ this._rowIdentities = {};
+ for (var i = 0; i < this.data.length; i++){
+ this._setRowId(this.data[i].__dojo_data_item, 0, i);
+ }
+ },
+ canSort: function(){
+ // Q: Return true and re-issue the queries?
+ // A: Return true only. Re-issue the query in 'sort'.
+ // Note, above are original comments :)
+ return true;
+ },
+ sort: function(colIndex){
+ var col = Math.abs(colIndex) - 1;
+ this.sortFields = [{'attribute': this.fields.values[col].name, 'descending': (colIndex>0)}];
+
+ // Since we're relying on the data store to sort, we have to refresh our data.
+ this.refresh();
+ },
+ refresh: function(){
+ // summary:
+ // Function to cause the model to re-query the store and rebuild the current viewport.
+ this.clearData(true);
+ this.requestRows();
+ },
+ clearData: function(/* boolean */ keepStore){
+ this._rowIdentities = {};
+ this.pages = [];
+ this.bop = this.eop = -1;
+ this.count = 0;
+ this.setData((keepStore?this.store:[]));
+ },
+ processError: function(error, request){
+ // summary:
+ // Hook function to trap error messages from the store and emit them.
+ // Intended for connecting to and handling the error object or at least reporting it.
+ //
+ // error:
+ // The error object returned by the store when a problem occurred.
+ // request:
+ // The request object that caused the error.
+ console.log(error);
+ }
+});
+
+}