-
Notifications
You must be signed in to change notification settings - Fork 7
/
database.js
104 lines (98 loc) · 3.36 KB
/
database.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
var sys = require('sys');
var path = require('path');
var resourcer = require('resourcer'),
cradle = require('cradle');
resourcer.Cache = require('resourcer/cache').Cache;
this.Connection = function (config) {
this.connection = new(cradle.Connection)({
host: config.uri || '127.0.0.1',
port: config.port || 5984,
raw: true,
cache: false,
auth: config && config.auth || null
}).database(config.database || resourcer.env);
this.cache = new(resourcer.Cache);
};
this.Connection.prototype = {
protocol: 'database',
load: function(data) {
throw new(Error)("Load not valid for database engine.");
},
request: function (method) {
var args = Array.prototype.slice.call(arguments, 1);
return this.connection[method].apply(this.connection, args);
},
head: function (id, callback) {
return this.request('head', id, callback);
},
get: function (id, callback) {
this.request.call(this, 'get', id, function (e, res) {
if (e) { callback(e) }
else {
if (Array.isArray(id)) {
callback(null, res.rows.map(function (r) { return r.doc }));
} else {
callback(null, res);
}
}
});
},
put: function (id, doc, callback) {
var args = Array.prototype.slice.call(arguments);
return this.request('put', id, doc, function (e, res) {
if (e) {
callback(e);
} else {
res.status = 201;
callback(null, res);
}
});
},
save: function () {
return this.put.apply(this, arguments);
},
update: function (id, doc, callback) {
if (this.cache.has(id)) {
this.put(id, resourcer.mixin({}, this.cache.get(id).toJSON(), doc), callback);
} else {
this.request('merge', id, doc, callback);
}
},
destroy: function () {
var that = this,
args = Array.prototype.slice.call(arguments),
id = args[0];
if (this.cache.has(id)) {
args.splice(1, -1, this.cache.get(id)._rev);
return this.request.apply(this, ['remove'].concat(args));
} else {
this.head(id, function (e, headers) {
if (headers.etag) {
args.splice(1, -1, headers.etag.slice(1, -1));
return that.request.apply(that, ['remove'].concat(args));
} else { args.pop()(e) }
});
}
},
view: function (path, opts, callback) {
return this.request.call(this, 'view', path, opts, function (e, res) {
if (e) { callback(e) }
else {
callback(null, res.rows.map(function (r) {
// With `include_docs=true`, the 'doc' attribute is set instead of 'value'.
var doc = r.doc || r.value;
if (r.id) { doc._id = r.id }
return doc;
}));
}
});
},
all: function (callback) {
return this.request.call(this, 'all', { include_docs: 'true' }, function (e, res) {
if (e) { callback(e) }
else {
callback(null, res.rows.map(function (r) { return r.doc }));
}
});
}
};