Do something in 5 with gas 8-copy between databases
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This document provides instructions for copying data between databases in 5 minutes using Apps Script. It describes opening a Google Sheet using the database abstraction library, getting all the data, opening a MongoDB database on MongoLab, writing the sheet data to the MongoDB database, and verifying the data was copied correctly. The document then suggests copying the data to a Google Drive file as homework using the driver sheet and driver drive libraries instead of MongoLab.
![check all was written
● do a count query on what was written
// check that it was all written
var dbResult = dbHandler.count ();
if (dbResult.data[0].count !== result.data.length)
throw 'data counts dont match';](https://image.slidesharecdn.com/dosomethingin5withgas-8-copybetweendatabases-151126145020-lva1-app6892/85/Do-something-in-5-with-gas-8-copy-between-databases-14-320.jpg)
Do something in 5 with gas 8-copy between databases
- 1. do something useful with Apps Script in 5 minutes 8. Copy between databases Bruce McPherson www.mcpher.com
- 2. Snippet objectives ● Open a database using dbabstraction ● Copy to another couple of formats Libraries used ● database abstraction ● driver sheet ● driver mongoLab ● driver drive
- 3. Add libraries to script ● get the id of the sheet you want to copy ● create a script ● open resources ● add references to libraries MHfCjPQlweartW45xYs6hFai_d-phDA33 Mrckbr9_w7PCphJtOzhzA_Cz3TLx7pV4j MPAHw_-cHNDxsYAg263J7Fai_d-phDA33
- 4. create mongolab account ● If you havent already got a mongolab account, sign up to a free plan https: //mongolab.com ● Create a new free deployment
- 5. create mongolab api key ● Click on your username ● get an API key and enable data access
- 6. write mongo key to properties ● Write and execute one off script to store mongolab restapikey to properties service function oneTimeSet () { PropertiesService.getUserProperties() .setProperty("mongoLabKeys", JSON.stringify({ "restAPIKey":"h3xxxxxxcz" })); }
- 7. layout what you are going to do function copyTheSheet () { // open the sheet to be copied // get all the data // open the database to copy it to // write it // check it }
- 8. My test data looks like this Sheet name is 'customers'
- 9. open the sheet to be copied ● use the ID and Sheet name to open. // open the sheet to be copied var sheetHandler = cDbAbstraction.DbAbstraction(cDriverSheet, { dbid:"1EhgZ1-q9tP1u9BSEQPIQiSGozdfjsHn3zB1JfQGbftw", siloid:"customers" }); if (!sheetHandler.isHappy()) throw 'could not open sheet';
- 10. Get the data on the sheet ● a query with no arguments gets all the data // get all the data var result = sheetHandler.query(); if (result.handleCode < 0) throw JSON.stringify(result);
- 11. Get handle for mongolab database ● will use a collection called 'customers' in the database 'dosomethinginfive' var dbHandler = cDbAbstraction.DbAbstraction(cDriverMongoLab, { dbid:"dosomethinginfive", siloid:"customers", driverob:JSON.parse(PropertiesService.getUserProperties() .getProperty("mongoLabKeys")) }); if (!dbHandler.isHappy()) throw 'could not open database';
- 12. delete any existing data ● delete all the current data in the db table // delete any data already there var dbResult = dbHandler.remove(); if (dbResult.handleCode < 0) throw JSON.stringify(dbResult);
- 13. copy the data from the sheet ● copy the data from the sheet // write it all var dbResult = dbHandler.save (result.data); if (dbResult.handleCode < 0) throw JSON.stringify(dbResult);
- 14. check all was written ● do a count query on what was written // check that it was all written var dbResult = dbHandler.count (); if (dbResult.data[0].count !== result.data.length) throw 'data counts dont match';
- 15. look at data on mongolab
- 16. Homework Do the same thing, but copy to a Drive file instead of MongoLab. Hints. ● You'll need cDriverDrive (Ma__4vH--nQ_FPsuNF1BFuyz3TLx7pV4j) ● There is only one line different from the mongolab version (specify the folder and file name) // open the database to copy it to var dbHandler = cDbAbstraction.DbAbstraction(cDriverDrive, { dbid:"/datahandler/driverdrive/tasks", siloid:"customers.json" });
- 17. Follow up materials Take a copy of these slides Join me on G+, or the G+ community More on desktop liberation More on database abstraction More 5 minute things