Created
April 14, 2015 15:17
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Copying items from a Realtime Cloud Storage table to another table (with the same key schema)
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script src="http://storage-cdn.realtime.co/storage/1.0.0/realtime-storage-min.js"></script> | |
| <script src="migration.js"></script> | |
| </head> | |
| <body> | |
| <h1>Realtime Cloud Storage: Copy items | |
| <p> | |
| <input type="button" | |
| onclick="copyItems('YOUR_REALTIME_APPKEY', 'authtoken', 'YOUR_ORIGIN_TABLENAME', 'YOUR_DESTINATION_TABLENAME')" | |
| value="Start copying items" /> | |
| </body> | |
| </html> |
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| function copyItems(fromAppKey, token, fromTableName, toTableName) | |
| { | |
| storageRef = Realtime.Storage.create({ | |
| applicationKey: fromAppKey, | |
| authenticationToken: token | |
| }, function() { | |
| var fromTableRef = storageRef.table(fromTableName); | |
| var toTableRef = storageRef.table(toTableName); | |
| console.log("Preparing copy"); | |
| fromTableRef.getItems( | |
| function success(itemSnapshot) { | |
| if (itemSnapshot && itemSnapshot.val()) { | |
| // copying item | |
| // WARNING: You might need to increase the write throughput on the destination table | |
| console.log("Buffering copy of item: " + JSON.stringify(itemSnapshot.val())); | |
| toTableRef.push( itemSnapshot.val(), | |
| function success(itemSnapshot) { | |
| console.log('Successfully copied item: '+ JSON.stringify(itemSnapshot.val())); | |
| }, | |
| function error(message) { | |
| console.log('Error:', message); | |
| } | |
| ); | |
| } | |
| else | |
| { | |
| console.log("The copy operations are now buffered. Please wait for completion ..."); | |
| } | |
| }, function error(message) { | |
| console.log('error copying:' + message); | |
| }); | |
| }, function(error) { | |
| console.log(error); | |
| }); | |
| }; |
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