1
2
3
4
5
6
7
8
9
10
11
12
|
{
"views" : {
"get" : {
"map" : "function(doc) {\n if (doc.u1db_rev) {\n var is_tombstone = true;\n var has_conflicts = false;\n if (doc._attachments) {\n if (doc._attachments.u1db_content)\n is_tombstone = false;\n if (doc._attachments.u1db_conflicts)\n has_conflicts = true;\n }\n emit(doc._id,\n {\n \"couch_rev\": doc._rev,\n \"u1db_rev\": doc.u1db_rev,\n \"is_tombstone\": is_tombstone,\n \"has_conflicts\": has_conflicts,\n }\n );\n }\n}\n"
}
},
"_id" : "_design/docs",
"updates" : {
"resolve_doc" : "function(doc, req){\n /* we expect to receive the following in `req.body`:\n * {\n * 'couch_rev': '<couch_rev>',\n * 'conflicts': '<base64 encoded conflicts>',\n * }\n */\n var body = JSON.parse(req.body);\n\n // fail if no document was given\n if (!doc) {\n return [null, 'document does not exist']\n } \n\n // fail if couch revisions do not match\n if (body['couch_rev'] != null\n && doc['_rev'] != body['couch_rev']) {\n return [null, 'revision conflict']\n }\n\n // fail if conflicts were not sent\n if (body['conflicts'] == null)\n return [null, 'missing conflicts']\n\n // save conflicts as attachment if they were sent\n if (body['conflicts'] != null) {\n if (!doc._attachments)\n doc._attachments = {};\n doc._attachments.u1db_conflicts = {\n content_type: \"application/octet-stream\",\n data: body['conflicts'] // should be base64 encoded\n }\n }\n // or delete attachment if there are no conflicts\n else if (doc._attachments && doc._attachments.u1db_conflicts)\n delete doc._attachments.u1db_conflicts;\n\n return [doc, 'ok'];\n}\n",
"put" : "function(doc, req){\n /* we expect to receive the following in `req.body`:\n * {\n * 'couch_rev': '<couch_rev>',\n * 'u1db_rev': '<u1db_rev>',\n * 'content': '<base64 encoded content>',\n * 'trans_id': '<reansaction_id>'\n * 'conflicts': '<base64 encoded conflicts>',\n * 'update_conflicts': <boolean>\n * }\n */\n var body = JSON.parse(req.body);\n\n // create a new document document\n if (!doc) {\n doc = {}\n doc['_id'] = req['id'];\n }\n // or fail if couch revisions do not match\n else if (doc['_rev'] != body['couch_rev']) {\n // of fail if revisions do not match\n return [null, 'revision conflict']\n }\n\n // store u1db rev\n doc.u1db_rev = body['u1db_rev'];\n\n // save content as attachment\n if (body['content'] != null) {\n // save u1db content as attachment\n if (!doc._attachments)\n doc._attachments = {};\n doc._attachments.u1db_content = {\n content_type: \"application/octet-stream\",\n data: body['content'] // should be base64 encoded\n };\n }\n // or delete the attachment if document is tombstone\n else if (doc._attachments &&\n doc._attachments.u1db_content)\n delete doc._attachments.u1db_content;\n\n // store the transaction id\n if (!doc.u1db_transactions)\n doc.u1db_transactions = [];\n var d = new Date();\n doc.u1db_transactions.push([d.getTime(), body['trans_id']]);\n\n // save conflicts as attachment if they were sent\n if (body['update_conflicts'])\n if (body['conflicts'] != null) {\n if (!doc._attachments)\n doc._attachments = {};\n doc._attachments.u1db_conflicts = {\n content_type: \"application/octet-stream\",\n data: body['conflicts'] // should be base64 encoded\n }\n } else {\n if(doc._attachments && doc._attachments.u1db_conflicts)\n delete doc._attachments.u1db_conflicts\n }\n\n return [doc, 'ok'];\n}\n"
}
}
|
