From a6b5b9ffe5de0d5184254b888a9dbca4941442b0 Mon Sep 17 00:00:00 2001
From: Makara Wang <makara15@gmail.com>
Date: Wed, 25 May 2016 17:26:16 +0800
Subject: [PATCH] Use `merge` so `autoupdate` keeps user created design docs.

---
 lib/couchdb.js            |   6 +--
 package.json              |   1 +
 test/20.operation.test.js | 103 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 107 insertions(+), 3 deletions(-)

diff --git a/lib/couchdb.js b/lib/couchdb.js
index 642f5ce..471faa1 100644
--- a/lib/couchdb.js
+++ b/lib/couchdb.js
@@ -11,6 +11,7 @@ var util = require('util');
 var Connector = require('loopback-connector').Connector;
 var httpError = require('http-errors');
 var Promise = require('bluebird');
+var merge = require('mixable-object').merge;
 
 /*!
  * Generate the CouchDB URL from the options
@@ -391,9 +392,8 @@ CouchDB.prototype.saveDesignDocs = function() {
     var options = { docName: _id };
     return connection.call('getAsync', _id).then(function(data) {
       debug('updating design doc:', name);
-      return connection.call('insertAsync', Object.assign({}, designDocs[name], {
-        _rev: data._rev
-      }), options);
+      // Using `merge` here, to keep the things created in the other ways.
+      return connection.call('insertAsync', merge.call(data, designDocs[name]), options);
     }, function(err) {
       debug('creating design doc:', name);
       return connection.call('insertAsync', designDocs[name], options);
diff --git a/package.json b/package.json
index 2a03cb7..bc434fa 100644
--- a/package.json
+++ b/package.json
@@ -31,6 +31,7 @@
     "debug": "^2.2.0",
     "http-errors": "^1.5.0",
     "loopback-connector": "^2.3.0",
+    "mixable-object": "^0.1.1",
     "nano": "^6.2.0"
   },
   "devDependencies": {
diff --git a/test/20.operation.test.js b/test/20.operation.test.js
index b5edea8..0684ba5 100644
--- a/test/20.operation.test.js
+++ b/test/20.operation.test.js
@@ -78,6 +78,14 @@ describe('CouchDB operations', function() {
     }).catch(done);
   });
 
+  it('can use the DB', function(done) {
+    Person.create(persons[1]).then(function(person) {
+      person.id.should.equal('1');
+      person.name.should.equal('Mary');
+      done();
+    }).catch(done);
+  });
+
   it('can use the DB', function(done) {
     Person.create(persons[3]).then(function(person) {
       person.id.should.be.String();
@@ -111,6 +119,101 @@ describe('CouchDB operations', function() {
     }).catch(done);
   });
 
+  it('can have another view', function(done) {
+    connector.connect().call('insertAsync', {
+      _id: '_design/group',
+      views: {
+        byAge: {
+          map: 'function(doc) { if (doc.age) emit(doc.age, null); }'
+        }
+      }
+    }).asCallback(done);
+  });
+
+  it('can use the other view', function(done) {
+    connector.connect().call('viewAsync', 'group', 'byAge', { keys: [24] }).then(function(res) {
+      res.should.be.Object();
+      res.should.have.property('rows').which.is.Array().with.length(2);
+      done();
+    }).catch(done);
+  });
+
+  it('can do autoupdate again', function(done) {
+    ds.autoupdate(function(err, res) {
+      if (err) {
+        return done(err);
+      }
+      done();
+    });
+  });
+
+  it('can use the view', function(done) {
+    connector.connect().call('viewAsync', 'find', 'byName', { keys: ['Charlie'] }).then(function(res) {
+      res.should.be.Object();
+      res.should.have.property('rows').which.is.Array().with.length(1);
+      done();
+    }).catch(done);
+  });
+
+  it('can still use the other view', function(done) {
+    connector.connect().call('viewAsync', 'group', 'byAge', { keys: [24] }).then(function(res) {
+      res.should.be.Object();
+      res.should.have.property('rows').which.is.Array().with.length(2);
+      done();
+    }).catch(done);
+  });
+
+  it('can remove the design docs', function(done) {
+    var connection = connector.connect();
+    return connection.call('getAsync', '_design/find').then(function(data) {
+      return connection.call('destroyAsync', data._id, data._rev);
+    }).asCallback(done);
+  });
+
+  it('can have another view', function(done) {
+    connector.connect().call('insertAsync', {
+      _id: '_design/find',
+      views: {
+        byAge: {
+          map: 'function(doc) { if (doc.age) emit(doc.age, null); }'
+        }
+      }
+    }).asCallback(done);
+  });
+
+  it('can use the other view', function(done) {
+    connector.connect().call('viewAsync', 'find', 'byAge', { keys: [24] }).then(function(res) {
+      res.should.be.Object();
+      res.should.have.property('rows').which.is.Array().with.length(2);
+      done();
+    }).catch(done);
+  });
+
+  it('can do autoupdate again', function(done) {
+    ds.autoupdate(function(err, res) {
+      if (err) {
+        return done(err);
+      }
+      done();
+    });
+  });
+
+  it('can use the view', function(done) {
+    connector.connect().call('viewAsync', 'find', 'byName', { keys: ['Charlie'] }).then(function(res) {
+      res.should.be.Object();
+      res.should.have.property('rows').which.is.Array().with.length(1);
+      done();
+    }).catch(done);
+  });
+
+  it('can still use the other view', function(done) {
+    connector.connect().call('viewAsync', 'find', 'byAge', { keys: [24] }).then(function(res) {
+      res.should.be.Object();
+      res.should.have.property('rows').which.is.Array().with.length(2);
+      done();
+    }).catch(done);
+  });
+
   it('can do automigrate', function(done) {
     ds.automigrate(function(err, res) {
       if (err) {