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nedb
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pull/2/head
Louis Chatriot 11 years ago
parent 804c5cd6cc
commit 9643a43e12
2 changed files with 256 additions and 75 deletions
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  1. 319
      browser-version/out/nedb.js
  2. 4
      browser-version/out/nedb.min.js

319
browser-version/out/nedb.js
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@ -1,6 +1,6 @@
(function(e){if("function"==typeof bootstrap)bootstrap("nedb",e);else if("object"==typeof exports)module.exports=e();else if("function"==typeof define&&define.amd)define(e);else if("undefined"!=typeof ses){if(!ses.ok())return;ses.makeNedb=e}else"undefined"!=typeof window?window.Nedb=e():global.Nedb=e()})(function(){var define,ses,bootstrap,module,exports;
return (function(e,t,n){function i(n,s){if(!t[n]){if(!e[n]){var o=typeof require=="function"&&require;if(!s&&o)return o(n,!0);if(r)return r(n,!0);throw new Error("Cannot find module '"+n+"'")}var u=t[n]={exports:{}};e[n][0].call(u.exports,function(t){var r=e[n][1][t];return i(r?r:t)},u,u.exports)}return t[n].exports}var r=typeof require=="function"&&require;for(var s=0;s<n.length;s++)i(n[s]);return i})({1:[function(require,module,exports){
(function(process){if (!process.EventEmitter) process.EventEmitter = function () {};
var process=require("__browserify_process");if (!process.EventEmitter) process.EventEmitter = function () {};
var EventEmitter = exports.EventEmitter = process.EventEmitter;
var isArray = typeof Array.isArray === 'function'
@ -184,7 +184,17 @@ EventEmitter.prototype.listeners = function(type) {
return this._events[type];
};
})(require("__browserify_process"))
EventEmitter.listenerCount = function(emitter, type) {
var ret;
if (!emitter._events || !emitter._events[type])
ret = 0;
else if (typeof emitter._events[type] === 'function')
ret = 1;
else
ret = emitter._events[type].length;
return ret;
};
},{"__browserify_process":3}],2:[function(require,module,exports){
var events = require('events');
@ -229,8 +239,8 @@ exports.inspect = function(obj, showHidden, depth, colors) {
'regexp': 'red' }[styleType];
if (style) {
return '\033[' + styles[style][0] + 'm' + str +
'\033[' + styles[style][1] + 'm';
return '\u001b[' + styles[style][0] + 'm' + str +
'\u001b[' + styles[style][1] + 'm';
} else {
return str;
}
@ -415,24 +425,18 @@ exports.inspect = function(obj, showHidden, depth, colors) {
function isArray(ar) {
return ar instanceof Array ||
Array.isArray(ar) ||
(ar && ar !== Object.prototype && isArray(ar.__proto__));
return Array.isArray(ar) ||
(typeof ar === 'object' && Object.prototype.toString.call(ar) === '[object Array]');
}
function isRegExp(re) {
return re instanceof RegExp ||
(typeof re === 'object' && Object.prototype.toString.call(re) === '[object RegExp]');
typeof re === 'object' && Object.prototype.toString.call(re) === '[object RegExp]';
}
function isDate(d) {
if (d instanceof Date) return true;
if (typeof d !== 'object') return false;
var properties = Date.prototype && Object_getOwnPropertyNames(Date.prototype);
var proto = d.__proto__ && Object_getOwnPropertyNames(d.__proto__);
return JSON.stringify(proto) === JSON.stringify(properties);
return typeof d === 'object' && Object.prototype.toString.call(d) === '[object Date]';
}
function pad(n) {
@ -593,7 +597,7 @@ process.chdir = function (dir) {
};
},{}],4:[function(require,module,exports){
(function(){/**
/**
* Specific customUtils for the browser, where we don't have access to the Crypto and Buffer modules
*/
@ -672,7 +676,6 @@ function uid (len) {
module.exports.uid = uid;
})()
},{}],5:[function(require,module,exports){
var customUtils = require('./customUtils')
, model = require('./model')
@ -834,6 +837,7 @@ Datastore.prototype.removeFromIndexes = function (doc) {
/**
* Update one or several documents in all indexes
* To update multiple documents, oldDoc must be an array of { oldDoc, newDoc } pairs
* If one update violates a constraint, all changes are rolled back
*/
Datastore.prototype.updateIndexes = function (oldDoc, newDoc) {
@ -851,7 +855,7 @@ Datastore.prototype.updateIndexes = function (oldDoc, newDoc) {
}
}
// If an error happened, we need to rollback the insert on all other indexes
// If an error happened, we need to rollback the update on all other indexes
if (error) {
for (i = 0; i < failingIndex; i += 1) {
this.indexes[keys[i]].revertUpdate(oldDoc, newDoc);
@ -922,32 +926,113 @@ Datastore.prototype.getCandidates = function (query) {
*/
Datastore.prototype._insert = function (newDoc, cb) {
var callback = cb || function () {}
, self = this
, insertedDoc
;
// Ensure the document has the right format
try {
newDoc._id = customUtils.uid(16);
model.checkObject(newDoc);
insertedDoc = model.deepCopy(newDoc);
this._insertInCache(newDoc);
} catch (e) {
return callback(e);
}
// Insert in all indexes (also serves to ensure uniqueness)
try { self.addToIndexes(insertedDoc); } catch (e) { return callback(e); }
this.persistence.persistNewState([newDoc], function (err) {
this.persistence.persistNewState(util.isArray(newDoc) ? newDoc : [newDoc], function (err) {
if (err) { return callback(err); }
return callback(null, newDoc);
});
};
/**
* Prepare a document (or array of documents) to be inserted in a database
* @api private
*/
Datastore.prototype.prepareDocumentForInsertion = function (newDoc) {
var preparedDoc, self = this;
if (util.isArray(newDoc)) {
preparedDoc = [];
newDoc.forEach(function (doc) { preparedDoc.push(self.prepareDocumentForInsertion(doc)); });
} else {
newDoc._id = customUtils.uid(16);
preparedDoc = model.deepCopy(newDoc);
model.checkObject(preparedDoc);
}
return preparedDoc;
};
/**
* If newDoc is an array of documents, this will insert all documents in the cache
* @api private
*/
Datastore.prototype._insertInCache = function (newDoc) {
if (util.isArray(newDoc)) {
this._insertMultipleDocsInCache(newDoc);
} else {
this.addToIndexes(this.prepareDocumentForInsertion(newDoc));
}
};
/**
* If one insertion fails (e.g. because of a unique constraint), roll back all previous
* inserts and throws the error
* @api private
*/
Datastore.prototype._insertMultipleDocsInCache = function (newDocs) {
var i, failingI, error
, preparedDocs = this.prepareDocumentForInsertion(newDocs)
;
for (i = 0; i < preparedDocs.length; i += 1) {
try {
this.addToIndexes(preparedDocs[i]);
} catch (e) {
error = e;
failingI = i;
break;
}
}
if (error) {
for (i = 0; i < failingI; i += 1) {
this.removeFromIndexes(preparedDocs[i]);
}
throw error;
}
};
Datastore.prototype.insert = function () {
this.executor.push({ this: this, fn: this._insert, arguments: arguments });
};
/**
* Count all documents matching the query
* @param {Object} query MongoDB-style query
*
* @api private Use count
*/
Datastore.prototype._count = function(query, callback) {
var res = 0
, self = this
, candidates = this.getCandidates(query)
, i
;
try {
for (i = 0; i < candidates.length; i += 1) {
if (model.match(candidates[i], query)) {
res++;
}
}
} catch (err) {
return callback(err);
}
return callback(null, res);
}
Datastore.prototype.count = function() {
this.executor.push({this: this, fn: this._count, arguments: arguments });
}
/**
* Find all documents matching the query
@ -989,20 +1074,20 @@ Datastore.prototype.find = function () {
Datastore.prototype._findOne = function (query, callback) {
var self = this
, candidates = this.getCandidates(query)
, i
, i, found = null
;
try {
for (i = 0; i < candidates.length; i += 1) {
if (model.match(candidates[i], query)) {
return callback(null, model.deepCopy(candidates[i]));
found = model.deepCopy(candidates[i]);
}
}
} catch (err) {
return callback(err);
}
return callback(null, null);
return callback(null, found);
};
Datastore.prototype.findOne = function () {
@ -1027,8 +1112,6 @@ Datastore.prototype._update = function (query, updateQuery, options, cb) {
, self = this
, numReplaced = 0
, multi, upsert
, updatedDocs = []
, candidates
, i
;
@ -1056,24 +1139,34 @@ Datastore.prototype._update = function (query, updateQuery, options, cb) {
});
}
, function () { // Perform the update
var modifiedDoc;
candidates = self.getCandidates(query);
var modifiedDoc
, candidates = self.getCandidates(query)
, modifications = []
;
// Preparing update (if an error is thrown here neither the datafile nor
// the in-memory indexes are affected)
try {
for (i = 0; i < candidates.length; i += 1) {
if (model.match(candidates[i], query) && (multi || numReplaced === 0)) {
numReplaced += 1;
modifiedDoc = model.modify(candidates[i], updateQuery);
self.updateIndexes(candidates[i], modifiedDoc);
updatedDocs.push(modifiedDoc);
modifications.push({ oldDoc: candidates[i], newDoc: modifiedDoc });
}
}
} catch (err) {
return callback(err);
}
self.persistence.persistNewState(updatedDocs, function (err) {
// Change the docs in memory
try {
self.updateIndexes(modifications);
} catch (err) {
return callback(err);
}
// Update the datafile
self.persistence.persistNewState(_.pluck(modifications, 'newDoc'), function (err) {
if (err) { return callback(err); }
return callback(null, numReplaced);
});
@ -1128,11 +1221,9 @@ Datastore.prototype.remove = function () {
};
module.exports = Datastore;
},{"./customUtils":4,"./executor":6,"./indexes":7,"./model":8,"./persistence":9,"async":10,"underscore":15,"util":2}],6:[function(require,module,exports){
(function(){/**
/**
* Responsible for sequentially executing actions on the database
*/
@ -1206,7 +1297,6 @@ Executor.prototype.processBuffer = function () {
// Interface
module.exports = Executor;
})()
},{"async":10}],7:[function(require,module,exports){
var BinarySearchTree = require('binary-search-tree').AVLTree
, model = require('./model')
@ -1221,9 +1311,24 @@ function checkValueEquality (a, b) {
return a === b;
}
/**
* Type-aware projection
*/
function projectForUnique (elt) {
if (elt === null) { return '$null'; }
if (typeof elt === 'string') { return '$string' + elt; }
if (typeof elt === 'boolean') { return '$boolean' + elt; }
if (typeof elt === 'number') { return '$number' + elt; }
if (util.isArray(elt)) { return '$date' + elt.getTime(); }
return elt; // Arrays and objects, will check for pointer equality
}
/**
* Create a new index
* All methods on an index guarantee that either the whole operation was successful and the index changed
* or the operation was unsuccessful and an error is thrown while the index is unchanged
* @param {String} options.fieldName On which field should the index apply (can use dot notation to index on sub fields)
* @param {Boolean} options.unique Optional, enforce a unique constraint (default: false)
* @param {Boolean} options.sparse Optional, allow a sparse index (we can have documents for which fieldName is undefined) (default: false)
@ -1257,7 +1362,9 @@ Index.prototype.reset = function (newData) {
* O(log(n))
*/
Index.prototype.insert = function (doc) {
var key, self = this;
var key, self = this
, keys, i, failingI, error
;
if (util.isArray(doc)) { this.insertMultipleDocs(doc); return; }
@ -1266,13 +1373,38 @@ Index.prototype.insert = function (doc) {
// We don't index documents that don't contain the field if the index is sparse
if (key === undefined && this.sparse) { return; }
this.tree.insert(key, doc);
if (!util.isArray(key)) {
this.tree.insert(key, doc);
} else {
// If an insert fails due to a unique constraint, roll back all inserts before it
keys = _.uniq(key, projectForUnique);
for (i = 0; i < keys.length; i += 1) {
try {
this.tree.insert(keys[i], doc);
} catch (e) {
error = e;
failingI = i;
break;
}
}
if (error) {
for (i = 0; i < failingI; i += 1) {
this.tree.delete(keys[i], doc);
}
throw error;
}
}
};
/**
* Insert an array of documents in the index
* If a constraint is violated, an error should be thrown and the changes rolled back
* If a constraint is violated, the changes should be rolled back and an error thrown
*
* @API private
*/
Index.prototype.insertMultipleDocs = function (docs) {
var i, error, failingI;
@ -1312,7 +1444,13 @@ Index.prototype.remove = function (doc) {
if (key === undefined && this.sparse) { return; }
this.tree.delete(key, doc);
if (!util.isArray(key)) {
this.tree.delete(key, doc);
} else {
_.uniq(key, projectForUnique).forEach(function (_key) {
self.tree.delete(_key, doc);
});
}
};
@ -1340,6 +1478,8 @@ Index.prototype.update = function (oldDoc, newDoc) {
* If a constraint is violated, the changes need to be rolled back
* and an error thrown
* @param {Array of oldDoc, newDoc pairs} pairs
*
* @API private
*/
Index.prototype.updateMultipleDocs = function (pairs) {
var i, failingI, error;
@ -1587,6 +1727,20 @@ function deepCopy (obj) {
}
/**
* Tells if an object is a primitive type or a "real" object
* Arrays are considered primitive
*/
function isPrimitiveType (obj) {
return ( typeof obj === 'boolean' ||
typeof obj === 'number' ||
typeof obj === 'string' ||
obj === null ||
util.isDate(obj) ||
util.isArray(obj));
}
/**
* Utility functions for comparing things
* Assumes type checking was already done (a and b already have the same type)
@ -1616,7 +1770,7 @@ function compareArrays (a, b) {
* Compare { things U undefined }
* Things are defined as any native types (string, number, boolean, null, date) and objects
* We need to compare with undefined as it will be used in indexes
* In the case of objects and arrays, we compare the serialized versions
* In the case of objects and arrays, we deep-compare
* If two objects dont have the same type, the (arbitrary) type hierarchy is: undefined, null, number, strings, boolean, dates, arrays, objects
* Return -1 if a < b, 1 if a > b and 0 if a = b (note that equality here is NOT the same as defined in areThingsEqual!)
*/
@ -1687,6 +1841,14 @@ lastStepModifierFunctions.$set = function (obj, field, value) {
};
/**
* Unset a field
*/
lastStepModifierFunctions.$unset = function (obj, field, value) {
delete obj[field];
};
/**
* Push an element to the end of an array field
*/
@ -1754,6 +1916,23 @@ lastStepModifierFunctions.$pop = function (obj, field, value) {
};
/**
* Removes all instances of a value from an existing array
*/
lastStepModifierFunctions.$pull = function (obj, field, value) {
var arr, i;
if (!util.isArray(obj[field])) { throw "Can't $pull an element from non-array values"; }
arr = obj[field];
for (i = arr.length - 1; i >= 0; i -= 1) {
if (match(arr[i], value)) {
arr.splice(i, 1);
}
}
};
/**
* Increment a numeric field's value
*/
@ -2036,12 +2215,27 @@ logicalOperators.$not = function (obj, query) {
* @param {Object} query
*/
function match (obj, query) {
var queryKeys = Object.keys(query)
, i
;
var queryKeys, queryKey, queryValue, i;
// Primitive query against a primitive type
// This is a bit of a hack since we construct an object with an arbitrary key only to dereference it later
// But I don't have time for a cleaner implementation now
if (isPrimitiveType(obj) || isPrimitiveType(query)) {
return matchQueryPart({ needAKey: obj }, 'needAKey', query);
}
// Normal query
queryKeys = Object.keys(query);
for (i = 0; i < queryKeys.length; i += 1) {
if (!matchQueryPart(obj, queryKeys[i], query[queryKeys[i]])) { return false; }
queryKey = queryKeys[i];
queryValue = query[queryKey];
if (queryKey[0] === '$') {
if (!logicalOperators[queryKey]) { throw "Unknown logical operator " + queryKey; }
if (!logicalOperators[queryKey](obj, queryValue)) { return false; }
} else {
if (!matchQueryPart(obj, queryKey, queryValue)) { return false; }
}
}
return true;
@ -2053,16 +2247,7 @@ function match (obj, query) {
*/
function matchQueryPart (obj, queryKey, queryValue) {
var objValue = getDotValue(obj, queryKey)
, i
, keys, firstChars, dollarFirstChars
;
// Query part begins with a logical operator: apply it
if (queryKey[0] === '$') {
if (!logicalOperators[queryKey]) { throw "Unknown logical operator " + queryKey; }
return logicalOperators[queryKey](obj, queryValue);
}
, i, keys, firstChars, dollarFirstChars;
// Check if the object value is an array treat it as an array of { obj, query }
// Where there needs to be at least one match
@ -2111,6 +2296,7 @@ module.exports.serialize = serialize;
module.exports.deserialize = deserialize;
module.exports.deepCopy = deepCopy;
module.exports.checkObject = checkObject;
module.exports.isPrimitiveType = isPrimitiveType;
module.exports.modify = modify;
module.exports.getDotValue = getDotValue;
module.exports.match = match;
@ -2160,7 +2346,7 @@ Persistence.prototype.loadDatabase = function (cb) {
module.exports = Persistence;
},{}],10:[function(require,module,exports){
(function(process){/*global setImmediate: false, setTimeout: false, console: false */
var process=require("__browserify_process");/*global setImmediate: false, setTimeout: false, console: false */
(function () {
var async = {};
@ -2253,10 +2439,7 @@ module.exports = Persistence;
else {
async.nextTick = process.nextTick;
if (typeof setImmediate !== 'undefined') {
async.setImmediate = function (fn) {
// not a direct alias for IE10 compatibility
setImmediate(fn);
};
async.setImmediate = setImmediate;
}
else {
async.setImmediate = async.nextTick;
@ -3119,7 +3302,6 @@ module.exports = Persistence;
}());
})(require("__browserify_process"))
},{"__browserify_process":3}],11:[function(require,module,exports){
module.exports.BinarySearchTree = require('./lib/bst');
module.exports.AVLTree = require('./lib/avltree');
@ -4167,7 +4349,7 @@ function defaultCheckValueEquality (a, b) {
module.exports.defaultCheckValueEquality = defaultCheckValueEquality;
},{}],15:[function(require,module,exports){
(function(){// Underscore.js 1.4.4
// Underscore.js 1.4.4
// http://underscorejs.org
// (c) 2009-2013 Jeremy Ashkenas, DocumentCloud Inc.
// Underscore may be freely distributed under the MIT license.
@ -5394,7 +5576,6 @@ module.exports.defaultCheckValueEquality = defaultCheckValueEquality;
}).call(this);
})()
},{}]},{},[5])(5)
});
;

4
browser-version/out/nedb.min.js vendored
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