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| <html> | |
| <body> | |
| <pre id="display"></pre> | |
| <script src="//cdn.jsdelivr.net/pouchdb/latest/pouchdb.min.js"></script> | |
| <script src="index.js"></script> | |
| </body> | |
| </html> |
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| // Destroy the database before doing anything, because I want | |
| // you to see the same thing if you reload. | |
| // Ignore the man behind the curtain! | |
| new PouchDB('sample').destroy().then(function () { | |
| return new PouchDB('kittens', {auto_compaction: true}); | |
| }).then(function (db) { | |
| function log(str) { | |
| var display = document.getElementById('display'); | |
| display.innerHTML = display.innerHTML || ''; | |
| display.innerHTML += '\n' + str; | |
| } | |
| // | |
| // IMPORTANT CODE STARTS HERE | |
| // | |
| function printRevisions() { | |
| return db.get('foo', {revs: true}).then(function (doc) { | |
| // convert revision IDs into full _rev hashes | |
| var start = doc._revisions.start; | |
| return Promise.all(doc._revisions.ids.map(function (id, i) { | |
| var rev = (start - i) + '-' + id; | |
| return db.get('foo', {rev: rev}).then(function (doc) { | |
| return [rev, doc]; | |
| }).catch(function (err) { | |
| if (err.status !== 404) { | |
| throw err; | |
| } | |
| return [rev, err]; | |
| }); | |
| })).then(function (revsAndDocs) { | |
| revsAndDocs.forEach(function (revAndDoc) { | |
| log('Fetched revision "' + revAndDoc[0] +'": '+ JSON.stringify(revAndDoc[1])); | |
| }); | |
| }); | |
| }); | |
| } | |
| db.put({_id: 'foo', version: 1}).then(function () { | |
| log('After putting version 1:') | |
| return printRevisions(); | |
| }).then(function () { | |
| return db.get('foo'); | |
| }).then(function (doc) { | |
| doc.version = 2; | |
| return db.put(doc); | |
| }).then(function () { | |
| // Revision 1 is already unavailable! | |
| log('\nAfter putting version 2:') | |
| return printRevisions(); | |
| }).catch(function (err) { | |
| // handle errors | |
| log(err); | |
| }); | |
| // | |
| // IMPORTANT CODE ENDS HERE | |
| // | |
| }); |
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