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298
datahandler.js
Normal file
298
datahandler.js
Normal file
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var DataHandlerJSRevision="$Revision: 69 $".split(' ')[1]
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function changedEntryDataHandler(response) {
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var allEntries=response.Entries;
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var maxModified=0;
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if (allEntries != null) {
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db.transaction(["Entry"]).then( // transaction has three callbacks in the .then function:
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function(){ // Transaction Complete
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if (maxModified > 0) {
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db.objectStore("maxModified").put({objectId:"Entry",value:maxModified});
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}
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$("#lstEntries").listview("refresh");
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console.log("Transaction complete [ changedEntryDataHandler ]" );
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check4Changes();
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},
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function(){ // Transaction Aborted
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$("#lstEntries").listview("refresh");
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console.log("Transaction aborted! [ changedEntryDataHandler ]" );
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},
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function(t){ // Transaction in Progress
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for (i=0;i<allEntries.length;i++){
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var theEntry=allEntries[i];
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// this has to be it's own function so that theEntry resolves to the right value also in the callback events!
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function singleEntryInsert(theEntry){
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t.objectStore("Entry").index("Description").getKey(theEntry.Description).done( function (result,event) {
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if (null==result) {
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if (theEntry.Status != "d") {// if item doesn't exist then add it.
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t.objectStore("Entry").add({"Description":theEntry.Description, "shopGlobalId":theEntry.shopGlobalId }).done( function(result,event){
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if (getActiveShopGlobalId()==theEntry.shopGlobalId) {
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addEntryToUi(result,theEntry.Description);
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}
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if (Number(theEntry.Modified) > Number(maxModified)) {
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maxModified=theEntry.Modified;
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}
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console.log("[ changedEntryDataHandler ] Added Entry from Server : " , theEntry);
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}).fail( function (result, event){
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console.log("Failed Inserting List Item: " , result , event )
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});
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} else {
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console.log("[ changedEntryDataHandler ] Entry from Server : " , theEntry, " didn't exist on the client, therefore doing nothing");
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if (Number(theEntry.Modified) > Number(maxModified)) {
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maxModified=theEntry.Modified;
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}
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}
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} else {
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if (theEntry.Status=="d") {
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t.objectStore("Entry").delete(result).done(function (result,event){
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if (Number(theEntry.Modified) > Number(maxModified)) {
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maxModified=theEntry.Modified;
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}
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});
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deleteEntryFromUi(result);
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console.log("Deleted Entry:" , theEntry.Description , " Key:" , result)
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} else {
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// shop updated
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t.objectStore("Entry").put({"Description":theEntry.Description, "shopGlobalId":theEntry.ShopGlobalId }).done( function(result,event){
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if (Number(theEntry.Modified) > Number(maxModified)) {
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maxModified=theEntry.Modified;
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}
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console.log("[ changedEntryDataHandler ] changed Entry from Server : " , theEntry );
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}).fail( function (result, event){
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console.log("Failed changing Entry List Item: " , result , event )
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});
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}
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}
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});
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}
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singleEntryInsert(theEntry);
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}
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}
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);
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} else {
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deleteQitem(response);
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console.log("[ changedEntryDataHandler ] - No New Entries." );
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}
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}
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function brandBrowser(sShoppingListName) {
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sGShoppingListName=sShoppingListName;
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sGBrowserId=generateUUID();
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addToQ("BrandBrowser",sGShoppingListName);
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db.objectStore("Config").add({Id:"ShoppingListName",value:sGShoppingListName});
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db.objectStore("Config").add({Id:"BrowserId",value:sGBrowserId});
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db.objectStore("maxModified").add({objectId:"Entry",value:0});
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db.objectStore("maxModified").add({objectId:"Shop",value:0});
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// Actually - that's not it: it's only for new shopping lists and not if a member is added...
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//db.objectStore("Shop").add({ShopName:"ShopName(Click to change)"});
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$("#pnlBranding").hide();
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setMode("Entries");
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loadAndShowShops();
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window.setTimeout(check4Changes,1000);
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}
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function unbrandBrowser() {
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db.deleteDatabase("Shoppinglist").done(function(){
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window.location.reload()
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});
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}
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function addNewEntry(sEntry){
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var shopGlobalId=getActiveShopGlobalId();
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if (shopGlobalId== null) {
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shopGlobalId=generateUUID();
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shopChangeHandler(shopGlobalId,"Default");
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}
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db.objectStore("Entry").add({"Description":sEntry,"shopGlobalId":shopGlobalId }).done( function(result,event){
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addToQ("SendEntry",result);
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addEntryToUi(result,sEntry);
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$("#lstEntries").listview("refresh");
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}).fail( function (result, event){
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console.log("Failed Inserting List Item: " , result, event )
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});
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}
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function deleteEntry(sKey) {
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db.objectStore("Entry").get(Number(sKey)).done( function(result,event){
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addToQ("DeleteEntry",result);
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db.objectStore("Entry").delete(Number(sKey)).done( function(result,event){
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deleteEntryFromUi(sKey)
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}).fail( function (result, event){
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console.log("[deleteEntry] Failed deleting List Item: " , result , event )
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});
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}).fail( function (result, event){
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console.log("[deleteEntry] Failed retrieving List Item Details: " , result , event )
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});
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}
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function shopDeletion(shopGlobalId){
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db.objectStore("Shop").delete(shopGlobalId)
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.done(function(){
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addToQ("ShopDeletion",shopGlobalId);
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$("#pnlShops>ul>li>a.ui-btn-active").remove();
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loadAndShowShops(null).done(function(){
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setMode("Entries");
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});
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});
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}
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function shopChangeHandler(shopGlobalId,shopName){
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db.objectStore("Shop").put({"GlobalId":shopGlobalId, "Description":shopName})
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.done(function(result){
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console.log("[shopChangeHandler] - created new Shop with UUID " , shopGlobalId , " and Description " , shopName , " resulting in key " , result );
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addToQ("SendShop",shopGlobalId);
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loadAndShowShops(shopGlobalId).done(function(){
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setMode("Entries");
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});
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})
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.fail(function (result,event){
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console.log("[shopChangeHandler] - error creating new Shop: " , result , event )
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});
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}
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function check4Changes(){
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var ojAllModi=new Object();
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ojAllModi.maxModified=new Object();
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db.transaction(["maxModified"]).then( // transaction has three callbacks in the .then function:
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function() { // transaction complete
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callServerFunction("SendChangedData",ojAllModi,changedDataTypeDispatcher,
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function(){
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// on error wait 5 sec.
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window.setTimeout(check4Changes,5000);
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}
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);
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},
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function(){ // Transaction Aborted
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console.log("Transaction aborted! [ check4Changes ]" );
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},
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function(t){ // Transaction in Progress
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t.objectStore("maxModified").each(function(result){
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if (result != null) {
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console.log("[Check4Changes] - maxModified " , result);
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ojAllModi.maxModified[result.key]=result.value.value;
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}
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});
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}
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);
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}
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function changedDataTypeDispatcher(response){
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console.log("[changedDataTypeDispatcher] Detected type: " , response.ChangeType);
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if (response.ChangeType=="Entry") {
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changedEntryDataHandler(response)
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}
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if (response.ChangeType=="Shop") {
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changedShopDataHandler(response)
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}
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if (response.ChangeType=="None"){
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check4Changes();
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}
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}
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function changedShopDataHandler(response){
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var allShops=response.Shops;
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var maxModified=0;
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if (allShops != null) {
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db.transaction(["Shop"]).then( // transaction has three callbacks in the .then function:
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function(){ // Transaction Complete
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if (maxModified > 0) {
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db.objectStore("maxModified").put({objectId:"Shop",value:maxModified})
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.done(function(result){
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console.log("updated modified to " + maxModified + " [ changedShopDataHandler ]" );
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})
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.fail(function(result,event){
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console.log("[changeShopDataHandler] Failed to update modified: " , result ,event );
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});
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}
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loadAndShowShops();
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console.log("[changeShopDataHandler] Transaction complete" );
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check4Changes();
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},
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function(){ // Transaction Aborted
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console.log("Transaction aborted! [ changedShopDataHandler ]" );
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},
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function(t){ // Transaction in Progress
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for (i=0;i<allShops.length;i++){
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var theShop=allShops[i];
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// this has to be it's own function so that theShop resolves to the right value also in the callback events!
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function singleShopInsert(theShop){
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t.objectStore("Shop").get(theShop.GlobalId).done( function (result,event) {
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if (null==result) {
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if (theShop.Status != "d") {// if item doesn't exist then add it.
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t.objectStore("Shop").add({"Description":theShop.Description, "GlobalId":theShop.GlobalId}).done( function(result,event){
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if (Number(theShop.Modified) > Number(maxModified)) {
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maxModified=theShop.Modified;
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}
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console.log("[ changedShopDataHandler ] Added Shop from Server : " . theShop);
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}).fail( function (result, event){
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console.log("Failed Inserting List Item: " , result , event )
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});
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} else {
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// yes, looks a bit doubled but has to be as the other 2 are transaction success dependant...
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if (Number(theShop.Modified) > Number(maxModified)) {
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maxModified=theShop.Modified;
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}
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}
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} else {
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if (theShop.Status=="d") {
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t.objectStore("Shop").delete(result.GlobalId).done(function (result,event){
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if (Number(theShop.Modified) > Number(maxModified)) {
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maxModified=theShop.Modified;
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}
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});
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console.log("Deleted Shop:" , theShop )
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} else {
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// shop updated
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t.objectStore("Shop").put({"Description":theShop.Description, "GlobalId":theShop.GlobalId }).done( function(result,event){
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if (Number(theShop.Modified) > Number(maxModified)) {
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maxModified=theShop.Modified;
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}
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console.log("[ changedShopDataHandler ] changed Shop from Server : " , theShop );
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}).fail( function (result, event){
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console.log("[ changedShopDataHandler ] Failed changing Shop Item: " , result,event );
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});
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}
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}
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});
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}
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singleShopInsert(theShop);
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}
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}
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);
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} else {
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deleteQitem(response);
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console.log("[ changedShopDataHandler ] - No New Shops." );
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}
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}
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