☰

HIT Database Backup

Does things...

目前為 2018-01-04 提交的版本，檢視 最新版本。

  1. // ==UserScript==
  2. // @name         HIT Database Backup
  3. // @namespace    https://github.com/Kadauchi
  4. // @version      1.0.0
  5. // @description  Does things...
  6. // @author       Kadauchi
  7. // @icon         http://i.imgur.com/oGRQwPN.png
  8. // @include      https://www.mturk.com/hitdb
  9. // ==/UserScript==
  10.  
  11. document.body.innerHTML = `generating hit_database.json.... please wait`;
  12.  
  13. let hitdb;
  14.  
  15. const request = window.indexedDB.open(`HITDB`);
  16.  
  17. request.onsuccess = (event) => {
  18. 	hitdb = event.target.result;
  19. 	generateFile();
  20. };
  21. request.onupgradeneeded = (event) => {
  22. 	document.body.innerHTML = `no hit database found`;
  23. };
  24. request.onerror = (event) => {
  25. 	document.body.innerHTML = `error: something went wrong`;
  26. };
  27.  
  28. async function generateFile() {
  29. 	const data = JSON.stringify({
  30. 		HIT: await getObjectStore(`HIT`),
  31. 		STATS: await getObjectStore(`STATS`),
  32. 		NOTES: await getObjectStore(`NOTES`)
  33. 	});
  34.  
  35. 	const exportFile = document.createElement(`a`);
  36. 	exportFile.href = window.URL.createObjectURL(new Blob([data], { type: `application/json` }));
  37. 	exportFile.download = `hit_database.json`;
  38. 	exportFile.click();
  39.  
  40. 	document.body.innerHTML = `hit_database.json.... downloaded`;
  41. }
  42.  
  43. function getObjectStore(name) {
  44. 	return new Promise((resolve) => {
  45. 		try {
  46. 			const transaction = hitdb.transaction([name], `readonly`);
  47. 			const objectStore = transaction.objectStore(name);
  48.  
  49. 			objectStore.getAll().onsuccess = (event) => {
  50. 				resolve(event.target.result);
  51. 			};
  52. 		}
  53. 		catch (error) {
  54. 			resolve();
  55. 		}
  56. 	});
  57. }