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var wrappers = require("pouchdb-wrappers");

var noops = {};
// also add all the other methods
"get allDocs getAttachment info revsDiff put post".split(" ")).forEach(function (name) {
  noops[name] = function (orig) {return orig(); };
});
wrappers.installWrapperMethods(db, noops);

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Running CouchApps on PouchDB in the browser using service workers

What is this?

A description of how to run an existing CouchApp on PouchDB in the browser using service workers - without any modifications to existing code being necessary! The best thing is that if service workers aren't available, the CouchApp will still run as normal: that is, online.

Demo

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  //PouchDB.destroy() is (going to be) deprecated by PouchDB, but the
  //semantics from db.destroy() differ when wrapped so re-add it.
  if (!(PouchDB.destroy || {}).isResurrected) {
    var orig = PouchDB.destroy;
    PouchDB.destroy = function (name, options, callback) {
      var args = parseBaseArgs(PouchDB, this, options, callback);

      //3.2.2 deprecates .destroy() and introduces opts.internal for as
      //long as PouchDB will still use the method internally (hopefully)
      if (!(PouchDB.version >= '3.2.2') || args.options.internal) {

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How to run

1. Get index.js and test.js in the same (otherwise empty) directory.
2. Execute the following commands:

npm install pouchdb memdown pouchdb-abstract-mapreduce evaljs
node test.js

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marten@procyon:~/Bureaublad$ mkdir temp
marten@procyon:~/Bureaublad$ cd temp/
marten@procyon:~/Bureaublad/temp$ npm cache clean
marten@procyon:~/Bureaublad/temp$ git clone --depth=30 git://github.com/pouchdb/express-pouchdb.git pouchdb/express-pouchdb
marten@procyon:~/Bureaublad/temp$ cd pouchdb/express-pouchdb
marten@procyon:~/Bureaublad/temp/pouchdb/express-pouchdb$ git fetch origin +refs/pull/170/merge:
marten@procyon:~/Bureaublad/temp/pouchdb/express-pouchdb$ git checkout -qf FETCH_HEAD
marten@procyon:~/Bureaublad/temp/pouchdb/express-pouchdb$ export CLIENT=node
marten@procyon:~/Bureaublad/temp/pouchdb/express-pouchdb$ export COMMAND=test-pouchdb-minimum
marten@procyon:~/Bureaublad/temp/pouchdb/express-pouchdb$ npm install

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msgid ""
msgstr ""

msgid "Most of the PouchDB API is exposed as `fun(arg, [options], [callback])` where both the options and the callback are optional. Callbacks use the `function(err, result)` idiom where the first argument will be undefined unless there is an error, and the second argument holds the result."
msgstr ""

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marten@marten-laptop:~/git/mapreduce$ npm run test --coverage

> pouchdb-mapreduce@2.2.3 test /home/marten/git/mapreduce
> npm run jshint && ./bin/run-test.sh


> pouchdb-mapreduce@2.2.3 jshint /home/marten/git/mapreduce
> jshint -c .jshintrc *.js test/test.js