nedb - npm Package Compare versions

Comparing version 0.9.3 to 0.9.4

browser-version/out/nedb.min.js

@@ -1,2 +0,2 @@
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t(e,function(t,e){t.apply(n,r.concat([e]))},i)};if(arguments.length>2){var r=Array.prototype.slice.call(arguments,2);return n.apply(this,r)}return n};u.applyEach=h(_),u.applyEachSeries=y(_),u.forever=function(t,e){function n(r){if(r){if(e)return e(r);throw r}t(n)}n()},"undefined"!=typeof t&&t.amd?t([],function(){return u}):"undefined"!=typeof n&&n.exports?n.exports=u:i.async=u}()},{__browserify_process:3}],11:[function(t,e){e.exports.BinarySearchTree=t("./lib/bst"),e.exports.AVLTree=t("./lib/avltree")},{"./lib/avltree":12,"./lib/bst":13}],12:[function(t,e){function n(t){this.tree=new r(t)}function r(t){t=t||{},this.left=null,this.right=null,this.parent=void 0!==t.parent?t.parent:null,t.hasOwnProperty("key")&&(this.key=t.key),this.data=t.hasOwnProperty("value")?[t.value]:[],this.unique=t.unique||!1,this.compareKeys=t.compareKeys||o.defaultCompareKeysFunction,this.checkValueEquality=t.checkValueEquality||o.defaultCheckValueEquality}var i=t("./bst"),o=t("./customUtils"),u=t("util");t("underscore"),u.inherits(r,i),n._AVLTree=r,r.prototype.checkHeightCorrect=function(){var t,e;if(this.hasOwnProperty("key")){if(this.left&&void 0===this.left.height)throw"Undefined height for node "+this.left.key;if(this.right&&void 0===this.right.height)throw"Undefined height for node "+this.right.key;if(void 0===this.height)throw"Undefined height for node "+this.key;if(t=this.left?this.left.height:0,e=this.right?this.right.height:0,this.height!==1+Math.max(t,e))throw"Height constraint failed for node "+this.key;this.left&&this.left.checkHeightCorrect(),this.right&&this.right.checkHeightCorrect()}},r.prototype.balanceFactor=function(){var t=this.left?this.left.height:0,e=this.right?this.right.height:0;return t-e},r.prototype.checkBalanceFactors=function(){if(Math.abs(this.balanceFactor())>1)throw"Tree is unbalanced at node 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o?(t=o.left,i.parent?(o.parent=i.parent,i.parent.left===i?i.parent.left=o:i.parent.right=o):o.parent=null,o.left=i,i.parent=o,i.right=t,t&&(t.parent=i),e=i.left?i.left.height:0,n=t?t.height:0,r=o.right?o.right.height:0,i.height=Math.max(e,n)+1,o.height=Math.max(r,i.height)+1,o):this},r.prototype.rightTooSmall=function(){return this.balanceFactor()<=1?this:(this.left.balanceFactor()<0&&this.left.leftRotation(),this.rightRotation())},r.prototype.leftTooSmall=function(){return this.balanceFactor()>=-1?this:(this.right.balanceFactor()>0&&this.right.rightRotation(),this.leftRotation())},r.prototype.rebalanceAlongPath=function(t){var e,n,r=this;if(!this.hasOwnProperty("key"))return delete this.height,this;for(n=t.length-1;n>=0;n-=1)t[n].height=1+Math.max(t[n].left?t[n].left.height:0,t[n].right?t[n].right.height:0),t[n].balanceFactor()>1&&(e=t[n].rightTooSmall(),0===n&&(r=e)),t[n].balanceFactor()<-1&&(e=t[n].leftTooSmall(),0===n&&(r=e));return r},r.prototype.insert=function(t,e){var n=[],r=this;if(!this.hasOwnProperty("key"))return this.key=t,this.data.push(e),this.height=1,this;for(;;){if(0===r.compareKeys(r.key,t)){if(r.unique)throw{message:"Can't insert key "+t+", it violates the unique constraint",key:t,errorType:"uniqueViolated"};return r.data.push(e),this}if(n.push(r),r.compareKeys(t,r.key)<0){if(!r.left){n.push(r.createLeftChild({key:t,value:e}));break}r=r.left}else{if(!r.right){n.push(r.createRightChild({key:t,value:e}));break}r=r.right}}return this.rebalanceAlongPath(n)},n.prototype.insert=function(t,e){var n=this.tree.insert(t,e);n&&(this.tree=n)},r.prototype.delete=function(t,e){var n,r=[],i=this,o=[];if(!this.hasOwnProperty("key"))return this;for(;;){if(0===i.compareKeys(t,i.key))break;if(o.push(i),i.compareKeys(t,i.key)<0){if(!i.left)return this;i=i.left}else{if(!i.right)return this;i=i.right}}if(i.data.length>1&&e)return i.data.forEach(function(t){i.checkValueEquality(t,e)||r.push(t)}),i.data=r,this;if(!i.left&&!i.right)return i===this?(delete 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this.getMinKeyDescendant().key},n.prototype.checkAllNodesFullfillCondition=function(t){this.hasOwnProperty("key")&&(t(this.key,this.data),this.left&&this.left.checkAllNodesFullfillCondition(t),this.right&&this.right.checkAllNodesFullfillCondition(t))},n.prototype.checkNodeOrdering=function(){var t=this;this.hasOwnProperty("key")&&(this.left&&(this.left.checkAllNodesFullfillCondition(function(e){if(t.compareKeys(e,t.key)>=0)throw"Tree with root "+t.key+" is not a binary search tree"}),this.left.checkNodeOrdering()),this.right&&(this.right.checkAllNodesFullfillCondition(function(e){if(t.compareKeys(e,t.key)<=0)throw"Tree with root "+t.key+" is not a binary search tree"}),this.right.checkNodeOrdering()))},n.prototype.checkInternalPointers=function(){if(this.left){if(this.left.parent!==this)throw"Parent pointer broken for key "+this.key;this.left.checkInternalPointers()}if(this.right){if(this.right.parent!==this)throw"Parent pointer broken for key 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constraint",key:t,errorType:"uniqueViolated"};return this.data.push(e),void 0}this.compareKeys(t,this.key)<0?this.left?this.left.insert(t,e):this.createLeftChild({key:t,value:e}):this.right?this.right.insert(t,e):this.createRightChild({key:t,value:e})},n.prototype.search=function(t){return this.hasOwnProperty("key")?0===this.compareKeys(this.key,t)?this.data:this.compareKeys(t,this.key)<0?this.left?this.left.search(t):[]:this.right?this.right.search(t):[]:[]},n.prototype.getLowerBoundMatcher=function(t){var e=this;return t.hasOwnProperty("$gt")||t.hasOwnProperty("$gte")?t.hasOwnProperty("$gt")&&t.hasOwnProperty("$gte")?0===e.compareKeys(t.$gte,t.$gt)?function(n){return e.compareKeys(n,t.$gt)>0}:e.compareKeys(t.$gte,t.$gt)>0?function(n){return e.compareKeys(n,t.$gte)>=0}:function(n){return e.compareKeys(n,t.$gt)>0}:t.hasOwnProperty("$gt")?function(n){return e.compareKeys(n,t.$gt)>0}:function(n){return 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this.left||this.right?!1:this.parent?(this.parent.left===this?this.parent.left=null:this.parent.right=null,!0):(delete this.key,this.data=[],!0)},n.prototype.deleteIfOnlyOneChild=function(){var t;return this.left&&!this.right&&(t=this.left),!this.left&&this.right&&(t=this.right),t?this.parent?(this.parent.left===this?(this.parent.left=t,t.parent=this.parent):(this.parent.right=t,t.parent=this.parent),!0):(this.key=t.key,this.data=t.data,this.left=null,t.left&&(this.left=t.left,t.left.parent=this),this.right=null,t.right&&(this.right=t.right,t.right.parent=this),!0):!1},n.prototype.delete=function(t,e){var n,r=[],i=this;if(this.hasOwnProperty("key")){if(this.compareKeys(t,this.key)<0)return this.left&&this.left.delete(t,e),void 0;if(this.compareKeys(t,this.key)>0)return this.right&&this.right.delete(t,e),void 0;if(0!==!this.compareKeys(t,this.key))return this.data.length>1&&e?(this.data.forEach(function(t){i.checkValueEquality(t,e)||r.push(t)}),i.data=r,void 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r=Array.prototype.slice.call(arguments,2);return n.apply(this,r)}return n};u.applyEach=h(_),u.applyEachSeries=y(_),u.forever=function(t,e){function n(r){if(r){if(e)return e(r);throw r}t(n)}n()},"undefined"!=typeof t&&t.amd?t([],function(){return u}):"undefined"!=typeof n&&n.exports?n.exports=u:i.async=u}()},{__browserify_process:3}],11:[function(t,e){e.exports.BinarySearchTree=t("./lib/bst"),e.exports.AVLTree=t("./lib/avltree")},{"./lib/avltree":12,"./lib/bst":13}],12:[function(t,e){function n(t){this.tree=new r(t)}function r(t){t=t||{},this.left=null,this.right=null,this.parent=void 0!==t.parent?t.parent:null,t.hasOwnProperty("key")&&(this.key=t.key),this.data=t.hasOwnProperty("value")?[t.value]:[],this.unique=t.unique||!1,this.compareKeys=t.compareKeys||o.defaultCompareKeysFunction,this.checkValueEquality=t.checkValueEquality||o.defaultCheckValueEquality}var i=t("./bst"),o=t("./customUtils"),u=t("util");t("underscore"),u.inherits(r,i),n._AVLTree=r,r.prototype.checkHeightCorrect=function(){var t,e;if(this.hasOwnProperty("key")){if(this.left&&void 0===this.left.height)throw"Undefined height for node "+this.left.key;if(this.right&&void 0===this.right.height)throw"Undefined height for node "+this.right.key;if(void 0===this.height)throw"Undefined height for node "+this.key;if(t=this.left?this.left.height:0,e=this.right?this.right.height:0,this.height!==1+Math.max(t,e))throw"Height constraint failed for node "+this.key;this.left&&this.left.checkHeightCorrect(),this.right&&this.right.checkHeightCorrect()}},r.prototype.balanceFactor=function(){var t=this.left?this.left.height:0,e=this.right?this.right.height:0;return t-e},r.prototype.checkBalanceFactors=function(){if(Math.abs(this.balanceFactor())>1)throw"Tree is unbalanced at node 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o?(t=o.left,i.parent?(o.parent=i.parent,i.parent.left===i?i.parent.left=o:i.parent.right=o):o.parent=null,o.left=i,i.parent=o,i.right=t,t&&(t.parent=i),e=i.left?i.left.height:0,n=t?t.height:0,r=o.right?o.right.height:0,i.height=Math.max(e,n)+1,o.height=Math.max(r,i.height)+1,o):this},r.prototype.rightTooSmall=function(){return this.balanceFactor()<=1?this:(this.left.balanceFactor()<0&&this.left.leftRotation(),this.rightRotation())},r.prototype.leftTooSmall=function(){return this.balanceFactor()>=-1?this:(this.right.balanceFactor()>0&&this.right.rightRotation(),this.leftRotation())},r.prototype.rebalanceAlongPath=function(t){var e,n,r=this;if(!this.hasOwnProperty("key"))return delete this.height,this;for(n=t.length-1;n>=0;n-=1)t[n].height=1+Math.max(t[n].left?t[n].left.height:0,t[n].right?t[n].right.height:0),t[n].balanceFactor()>1&&(e=t[n].rightTooSmall(),0===n&&(r=e)),t[n].balanceFactor()<-1&&(e=t[n].leftTooSmall(),0===n&&(r=e));return r},r.prototype.insert=function(t,e){var n=[],r=this;if(!this.hasOwnProperty("key"))return this.key=t,this.data.push(e),this.height=1,this;for(;;){if(0===r.compareKeys(r.key,t)){if(r.unique)throw{message:"Can't insert key "+t+", it violates the unique constraint",key:t,errorType:"uniqueViolated"};return r.data.push(e),this}if(n.push(r),r.compareKeys(t,r.key)<0){if(!r.left){n.push(r.createLeftChild({key:t,value:e}));break}r=r.left}else{if(!r.right){n.push(r.createRightChild({key:t,value:e}));break}r=r.right}}return this.rebalanceAlongPath(n)},n.prototype.insert=function(t,e){var n=this.tree.insert(t,e);n&&(this.tree=n)},r.prototype.delete=function(t,e){var n,r=[],i=this,o=[];if(!this.hasOwnProperty("key"))return this;for(;;){if(0===i.compareKeys(t,i.key))break;if(o.push(i),i.compareKeys(t,i.key)<0){if(!i.left)return this;i=i.left}else{if(!i.right)return this;i=i.right}}if(i.data.length>1&&e)return i.data.forEach(function(t){i.checkValueEquality(t,e)||r.push(t)}),i.data=r,this;if(!i.left&&!i.right)return i===this?(delete i.key,i.data=[],delete i.height,this):(i.parent.left===i?i.parent.left=null:i.parent.right=null,this.rebalanceAlongPath(o));if(!i.left||!i.right)return n=i.left?i.left:i.right,i===this?(n.parent=null,n):(i.parent.left===i?(i.parent.left=n,n.parent=i.parent):(i.parent.right=n,n.parent=i.parent),this.rebalanceAlongPath(o));if(o.push(i),n=i.left,!n.right)return i.key=n.key,i.data=n.data,i.left=n.left,n.left&&(n.left.parent=i),this.rebalanceAlongPath(o);for(;;){if(!n.right)break;o.push(n),n=n.right}return i.key=n.key,i.data=n.data,n.parent.right=n.left,n.left&&(n.left.parent=n.parent),this.rebalanceAlongPath(o)},n.prototype.delete=function(t,e){var n=this.tree.delete(t,e);n&&(this.tree=n)},["getNumberOfKeys","search","betweenBounds","prettyPrint","executeOnEveryNode"].forEach(function(t){n.prototype[t]=function(){return this.tree[t].apply(this.tree,arguments)}}),e.exports=n},{"./bst":13,"./customUtils":14,underscore:15,util:2}],13:[function(t,e){function n(t){t=t||{},this.left=null,this.right=null,this.parent=void 0!==t.parent?t.parent:null,t.hasOwnProperty("key")&&(this.key=t.key),this.data=t.hasOwnProperty("value")?[t.value]:[],this.unique=t.unique||!1,this.compareKeys=t.compareKeys||i.defaultCompareKeysFunction,this.checkValueEquality=t.checkValueEquality||i.defaultCheckValueEquality}function r(t,e){var n;for(n=0;n<e.length;n+=1)t.push(e[n])}var i=t("./customUtils");n.prototype.getMaxKeyDescendant=function(){return this.right?this.right.getMaxKeyDescendant():this},n.prototype.getMaxKey=function(){return this.getMaxKeyDescendant().key},n.prototype.getMinKeyDescendant=function(){return this.left?this.left.getMinKeyDescendant():this},n.prototype.getMinKey=function(){return this.getMinKeyDescendant().key},n.prototype.checkAllNodesFullfillCondition=function(t){this.hasOwnProperty("key")&&(t(this.key,this.data),this.left&&this.left.checkAllNodesFullfillCondition(t),this.right&&this.right.checkAllNodesFullfillCondition(t))},n.prototype.checkNodeOrdering=function(){var t=this;this.hasOwnProperty("key")&&(this.left&&(this.left.checkAllNodesFullfillCondition(function(e){if(t.compareKeys(e,t.key)>=0)throw"Tree with root "+t.key+" is not a binary search tree"}),this.left.checkNodeOrdering()),this.right&&(this.right.checkAllNodesFullfillCondition(function(e){if(t.compareKeys(e,t.key)<=0)throw"Tree with root "+t.key+" is not a binary search tree"}),this.right.checkNodeOrdering()))},n.prototype.checkInternalPointers=function(){if(this.left){if(this.left.parent!==this)throw"Parent pointer broken for key "+this.key;this.left.checkInternalPointers()}if(this.right){if(this.right.parent!==this)throw"Parent pointer broken for key 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constraint",key:t,errorType:"uniqueViolated"};return this.data.push(e),void 0}this.compareKeys(t,this.key)<0?this.left?this.left.insert(t,e):this.createLeftChild({key:t,value:e}):this.right?this.right.insert(t,e):this.createRightChild({key:t,value:e})},n.prototype.search=function(t){return this.hasOwnProperty("key")?0===this.compareKeys(this.key,t)?this.data:this.compareKeys(t,this.key)<0?this.left?this.left.search(t):[]:this.right?this.right.search(t):[]:[]},n.prototype.getLowerBoundMatcher=function(t){var e=this;return t.hasOwnProperty("$gt")||t.hasOwnProperty("$gte")?t.hasOwnProperty("$gt")&&t.hasOwnProperty("$gte")?0===e.compareKeys(t.$gte,t.$gt)?function(n){return e.compareKeys(n,t.$gt)>0}:e.compareKeys(t.$gte,t.$gt)>0?function(n){return e.compareKeys(n,t.$gte)>=0}:function(n){return e.compareKeys(n,t.$gt)>0}:t.hasOwnProperty("$gt")?function(n){return e.compareKeys(n,t.$gt)>0}:function(n){return e.compareKeys(n,t.$gte)>=0}:function(){return!0}},n.prototype.getUpperBoundMatcher=function(t){var e=this;return t.hasOwnProperty("$lt")||t.hasOwnProperty("$lte")?t.hasOwnProperty("$lt")&&t.hasOwnProperty("$lte")?0===e.compareKeys(t.$lte,t.$lt)?function(n){return e.compareKeys(n,t.$lt)<0}:e.compareKeys(t.$lte,t.$lt)<0?function(n){return e.compareKeys(n,t.$lte)<=0}:function(n){return e.compareKeys(n,t.$lt)<0}:t.hasOwnProperty("$lt")?function(n){return e.compareKeys(n,t.$lt)<0}:function(n){return e.compareKeys(n,t.$lte)<=0}:function(){return!0}},n.prototype.betweenBounds=function(t,e,n){var i=[];return this.hasOwnProperty("key")?(e=e||this.getLowerBoundMatcher(t),n=n||this.getUpperBoundMatcher(t),e(this.key)&&this.left&&r(i,this.left.betweenBounds(t,e,n)),e(this.key)&&n(this.key)&&r(i,this.data),n(this.key)&&this.right&&r(i,this.right.betweenBounds(t,e,n)),i):[]},n.prototype.deleteIfLeaf=function(){return this.left||this.right?!1:this.parent?(this.parent.left===this?this.parent.left=null:this.parent.right=null,!0):(delete this.key,this.data=[],!0)},n.prototype.deleteIfOnlyOneChild=function(){var t;return this.left&&!this.right&&(t=this.left),!this.left&&this.right&&(t=this.right),t?this.parent?(this.parent.left===this?(this.parent.left=t,t.parent=this.parent):(this.parent.right=t,t.parent=this.parent),!0):(this.key=t.key,this.data=t.data,this.left=null,t.left&&(this.left=t.left,t.left.parent=this),this.right=null,t.right&&(this.right=t.right,t.right.parent=this),!0):!1},n.prototype.delete=function(t,e){var n,r=[],i=this;if(this.hasOwnProperty("key")){if(this.compareKeys(t,this.key)<0)return this.left&&this.left.delete(t,e),void 0;if(this.compareKeys(t,this.key)>0)return this.right&&this.right.delete(t,e),void 0;if(0!==!this.compareKeys(t,this.key))return this.data.length>1&&e?(this.data.forEach(function(t){i.checkValueEquality(t,e)||r.push(t)}),i.data=r,void 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lib/datastore.js

@@ -19,2 +19,3 @@ var customUtils = require('./customUtils')
  * @param {Boolean} options.autoload Optional, defaults to false
+ * @param {Function} options.onload Optional, if autoload is used this will be called after the load database with the error object as parameter. If you don't pass it the error will be thrown
  */
@@ -57,3 +58,7 @@ function Datastore (options) {
   
-  if (this.autoload) { this.loadDatabase(); }
+  // Queue a load of the database right away and call the onload handler
+  // By default (no onload handler), if there is an error there, no operation will be possible so warn the user by throwing an exception
+  if (this.autoload) { this.loadDatabase(options.onload || function (err) {
+    if (err) { throw err; }
+  }); }
 }
@@ -60,0 +65,0 @@

package.json

 {
   "name": "nedb",
-  "version": "0.9.3",
+  "version": "0.9.4",
   "author": {
-    "name": "tldr.io",
-    "email": "[e-mail]"
+    "name": "Louis Chatriot",
+    "email": "[e-mail]"
   },
@@ -8,0 +8,0 @@ "contributors": [

README.md

@@ -13,3 +13,3 @@ # NeDB (Node embedded database)
 
-Check the <a href="https://github.com/louischatriot/nedb/wiki/Change-log" target="_blank">change log in the wiki</a> if you think nedb doesn't behaves as the documentation describes! Most of the issues I get are due to non-latest version NeDBs.
+Check the <a href="https://github.com/louischatriot/nedb/wiki/Change-log" target="_blank">change log in the wiki</a> if you think nedb doesn't behave as the documentation describes! Most of the issues I get are due to non-latest version NeDBs.
 
@@ -29,2 +29,3 @@
 * <a href="#creatingloading-a-database">Creating/loading a database</a>
+* <a href="#compacting-the-database">Compacting the database</a>
 * <a href="#inserting-documents">Inserting documents</a>
@@ -47,2 +48,3 @@ * <a href="#finding-documents">Finding documents</a>
 load is done.
+* `onload` (optional): if you use autoloading, this is the handler called after the `loadDatabase`. It takes one `error` argument. If you use autoloading without specifying this handler, and an error happens during load, an error will be thrown.
 * `nodeWebkitAppName` (optional, **DEPRECATED**): if you are using NeDB from whithin a Node Webkit app, specify its name (the same one you use in the `package.json`) in this field and the `filename` will be relative to the directory Node Webkit uses to store the rest of the application's data (local storage etc.). It works on Linux, OS X and Windows. Now that you can use `require('nw.gui').App.dataPath` in Node Webkit to get the path to the data directory for your application, you should not use this option anymore and it will be removed.
@@ -79,3 +81,4 @@
 var Datastore = require('nedb')
-  , db = new Datastore({ filename: 'something.db', nodeWebkitAppName: 'nwtest' });
+  , path = require('path')
+  , db = new Datastore({ filename: path.join(require('nw.gui').App.dataPath, 'something.db') });
 
@@ -94,2 +97,12 @@
 
+### Compacting the database
+Under the hood, NeDB's persistence uses an append-only format, meaning that all updates and deletes actually result in lines added at the end of the datafile. The reason for this is that disk space is very cheap and appends are much faster than rewrites since they don't do a seek. The database is automatically compacted (i.e. put back in the one-line-per-document format) everytime your application restarts.
+
+You can manually call the compaction function with `yourDatabase.persistence.compactDatafile` which takes a `callback(err)` as argument.
+
+You can also set automatic compaction at regular intervals with `yourDatabase.persistence.setAutocompactionInterval(interval)`, `interval` in milliseconds (a minimum of 5s is enforced), and stop automatic compaction with `yourDatabase.persistence.stopAutocompaction()`.
+
+Keep in mind that compaction takes a bit of time (not too much: 130ms for 50k records on my slow machine) and no other operation can happen when it does, so most projects actually don't need to use it.
+
+
 ### Inserting documents
@@ -511,3 +524,3 @@ The native types are `String`, `Number`, `Boolean`, `Date` and `null`. You can also use
 
-**The browser version is still young!** For now you can only use it as an in-memory database in browser environments, I'll implement persistence using indexeddb and localstorage later.
+**The browser version is still young!** For now you can only use it as an in-memory database in browser environments, I'll implement persistence later.
 
@@ -514,0 +527,0 @@

No alert changes

Improved metrics

Total package byte prevSize

665526

increased by0.94%

Lines of code

15653

increased by0.53%

Number of lines in readme file

571

increased by2.33%

No dependency changes