CHANGELOG.md

Change Log

All notable changes to this project will be documented in this file. This file should follow the standards specified on [http://keepachangelog.com/] This project adheres to Semantic Versioning.

[Unreleased][unreleased]

Added

• model_class key on associations now supports an Array

Refactoring

• Major refactoring using rubocop and speed improvements

Changes above this point should conform to [http://keepachangelog.com/]

[4.1.2]

• Fixes two bugs related to inheritance: one regarding ActiveRel classes and relationship types, the other regarding ActiveNode primary_key properties not being set when a model is loaded prior to Neo4j session.

[4.1.1]

• Switches use of Fixnum to Integer to improve 32-bit support

[4.1.0]

This release includes many performance fixes and new features. The most notable:

• Huge stylist cleanup/refactoring by Brian on the entire gem by Brian armed with Rubocop. See http://neo4jrb.io/blog/2014/12/29/stay-out-of-trouble.html.
• Every node create, update, and destroy is now wrapped in a transaction. See http://neo4jrb.io/blog/2015/01/06/transactions_everywhere.html.
• New dependent options for associations: :delete, :destroy, :delete_orphans, :destroy_orphans. See http://neo4jrb.io/blog/2015/01/07/association_dependent_options.html.
• New unique: true option for associations, creates_unique_rel class method for ActiveRel. Both of these will result in relationship creation Cypher using "CREATE UNIQUE" instead of "CREATE".
• Fixed an n+1 query issue during node creation and update.
• Dieter simplified some code related to frozen attributes. See neo4jrb#655. We now have a new website online at http://neo4jrb.io! Keep an eye on it for news and blogs related to this and other projects.

[4.0.0]

• Change neo4j-core dependency from 3.1.0 to 4.0.0.

[4.0.0.rc.4]

• _classname property is disabled by default for ActiveRel! It had been disabled for ActiveNode, this just evens the score.
• Fixes a bug to create better result labels in Cypher.
• Made the delete_all and destroy_all ActiveNode class methods consistent with their ActiveRecord counterparts. destroy_all previously performed its deletes in Cypher but it should have been returning nodes to Ruby and calling destroy. delete_all didn't exist at all.

[4.0.0.rc.3]

Released minutes after rc.2 to catch one late addition!

• Adds serialization support for QueryProxy.

[4.0.0.rc.2]

This release builds on features introduced in the first RC. We are releasing this as another RC because the API may be tweaked before release.

• New proxy_as for Core::Query to build QueryProxy chains onto Core::Query objects!
• Using proxy_as, new optional method in QueryProxy to use the OPTIONAL MATCH Cypher function.
• match_to and methods that depend on it now support arrays of nodes or IDs.
• New rels_to/all_rels_to methods.
• New delete and destroy methods in QueryProxy to easily remove relationships.
• Serialized objects will include IDs by default.

[4.0.0.rc.1]

This release introduces API changes that may be considered breaking under certain conditions. See See https://github.com/neo4jrb/neo4j/wiki/Neo4j.rb-v4-Introduction. Please use https://github.com/neo4jrb/neo4j/issues for support regarding this update! You can also reach us on Twitter: @neo4jrb (Brian) and @subvertallmedia (Chris).

• Default behavior changed: relationship types default to all caps, no prepending of "#". This behavior can be changed.
• ActiveRel models no longer require explicit calling of type. When missing, the model will infer a type using the class name following the same rules used to determine automatic relationship types from ActiveNode models.
• _classname properties will not be added automatically if you are using a version Neo4j >= 2.1.5. Instead, models are found using labels or relationship type. This is a potentially breaking change, particularly where ActiveRel is concerned. See the link at the beginning of this message for the steps required to work around this.
• Query scopes are now chainable! Call all at the start of your scope or method to take advantage of this.
• Changes required for Neo4j 2.2.
• Support for custom typecasters.
• New method rel_where, expanded behavior of match_to and first_rel_to
• Implemented ActiveSupport load hooks.
• Assorted performance improvements and refactoring.

[3.0.4]

• Gemspec requires the latest neo4j-core.
• Fixed a pagination bug — thanks, @chrisgogreen!
• New QueryProxy methods match_to and first_rel_to are pretty cool.
• include_root_in_json is now configurable through config.neo4j.include_root_in_json or Neo4j::Config[:include_root_in_json]. Also cool.
• There's a new delete_all method for QueryProxy, too.
• @codebeige removed the include? class method, which was smart.
• Did I mention we won an award from Neo Tech? Check it out. https://github.com/neo4jrb/neo4j#welcome-to-neo4jrb

[3.0.3]

• Gemspec has been updated to require neo4j-core 3.0.5
• Added find_in_batches
• Pagination has been updated to allow better ordering. Relaunch of neo4j-will_paginate as neo4j-will_paginate_redux is imminent!
• Everything is better: create's handling of blocks, better behavior from count, better ActiveRel from_class/to_class checks, better handling of rel_class strings, and more
• Added a new find_or_create_by class method

Big thanks to new contributors Miha Rekar and Michael Perez! Also check out or Github issues, where we're discussing changes for 3.1.0. https://github.com/neo4jrb/neo4j/issues

[3.0.2]

• "Model#all" now evaluates lazily, models no longer include Enumerable
• Faster, more efficient uniqueness validations
• Adjusted many common queries to use params, will improve performance
• ActiveRel fixes: create uses Core Query instead of Core's rels method, { classname: #{_classname} } no longer inserted into every query, find related node IDs without loading the nodes
• Allow inheritance when checking model class on a relation (Andrew Jones)
• Provided migrations will use Rake.original_dir instead of Rails.env to provide better compatibility with frameworks other than Rails
• rel_class option in ActiveNode models will now accept string of a model name
• Additional bug fixes

[3.0.1]

• Removed reference to neo4j-core from Gemfile and set neo4j.gemspec to use neo4j-core ~>3.0.0

[3.0.0]

No change from rc 4

[3.0.0.rc.4]

• UUIDs are now automatically specified on models as neo IDs won't be reliable in future versions of neo4j
• Migrations now supported (including built-in migrations to migrate UUIDs and insert the _classname property which is used for performance)
• Association reflection
• Model.find supports ids/node objects as well as arrays of id/node objects
• rake tasks now get automatically included into rails app

[3.0.0.rc.3]

• thread safety improvements
• scope and general refactoring
• Added ability to create relationships on init (persisted on save)

[3.0.0.rc.2]

• Use newer neo4j-core release

[3.0.0.rc.1]

• Support for count, size, length, empty, blank? for has_many relationship
• Support for rails logger of cypher queries in development
• Support for distinct count
• Optimized methods: https://github.com/andreasronge/neo4j/wiki/Optimized-Methods
• Queries should respect mapped label names (#421)
• Warn if no session is available
• Fix broken == and equality (#424)

[3.0.0.alpha.11]

• Bug fixes

[3.0.0.alpha.10]

• ActiveRel support, see Wiki pages (chris #393)

[3.0.0.alpha.9]

• Complete rewrite of the query api, see wiki page (#406, chris, brian)
• Performance improvements (#382,#400, #402, chris)
• idproperty - user defined primary keys (#396,#389)
• Reimplementation of Neo4j::Config
• Serialization of node properties (#381)
• Better first,last syntax (#379)

[3.0.0.alpha.8]

• Integration with new Query API from neo4j-core including:
• • .query_as and #query_as methods to get queries from models (#366)
• • .qq method for QuickQuery syntax ( https://github.com/andreasronge/neo4j/wiki/Neo4j-v3#quickquery-work-in-progress / #366)
• Before and after callbacks on associations (#373)
• .find / .all / .count changed to be more like ActiveRecord
• .first / .last methods (#378)
• .find_by / .find_by! (#375)

[3.0.0.alpha.7]

• Bug fix uniqueness-validator (#356 from JohnKellyFerguson)
• Many improvements, like update_attributes and validation while impl orm_adapter, Brian Underwood
• Impl orm_adapter API for neo4j so it can be used from for example devise, Brian Underwood (#355)
• Fix of inheritance of Neo4j::ActiveNode (#307)
• Expose add_label, and remove_label (#335)
• Fixed auto loading of classes bug, (#349)
• Bumped neo4j-core, 3.0.0.alpha.16

[3.0.0.alpha.6]

• Support for Heroku URLs, see wiki https://github.com/andreasronge/neo4j/wiki/Neo4j-v3 (#334)

[3.0.0.alpha.5]

• Added allow session options via 'config.neo4j.session_options' so it can run on heroku (#333)
• Relaxed Dependencies for Rails 4.1 (#332)
• Using neo4j-core version 3.0.0.alpha.12

[3.0.0.alpha.4]

• Implemented validates_uniqueness_of (#311)
• Using neo4j-core version 3.0.0.alpha.11

[3.0.0.alpha.3]

• Support for rails scaffolds
• Support for created_at and updated_at (#305)
• Support for ability to select a session to use per model (#299)
• BugFix: updating a model should not clear out old properties (#296)

[3.0.0.alpha.2]

• Support for both embedded (only JRuby) and server API (runs on MRI Ruby !)
• Simple Rails app now work
• Support for has_n and has_one method
• ActiveModel support, callback, validation
• Declared properties (via active_attr gem)

[2.3.0 / 2013-07-18]

• Fix Issue with HA console when ruby-debug is loaded (#261, thekendalmiller)
• Use 1.9 Neo4j

[2.2.4 / 2013-05-19]

• get_or_create should return wrapped ruby nodes, alex-klepa, #241, #246
• Make sure freeze does not have side effects, #235
• Fix for carrierwave-neo4j (attribute_defaults), #235

[2.2.3 / 2012-12-28]

• Support for HA cluster with neo4j 1.9.X, #228, #99, #223
• Make sure the Identity map is cleared after an exception, #214
• Relationship other_node should return wrapped node, #226
• Automatically convert DateTimes to UTC, (neo4j-wrapper #7)
• get_or_create should return a wrapped node (neo4j-wrapper #8)
• Make it work with Neo4j 1.7.1 (neo4j-core, #19)

[2.2.2 - skipped]

[2.2.1 / 2012-12-18]

• Fix for JRuby 1.7.1 and Equal #225
• Fix for create nodes and relationship using Cypher (neo4j-core #17)

[2.2.0 / 2012-10-02]

• Using neo4j-cypher gem (1.0.0)
• Fix of neo4j-core configuration issue using boolean values #218
• Fixed RSpec issue on JRuby 1.7.x #217
• Aliased has_many to has_n, #183

[2.2.0.rc1 / 2012-09-21]

• Use neo4j-core and neo4j-wrapper version 2.2.0.rc1
• Use the neo4j-cypher gem
• Better support for Orm Adapter, #212
• Use Cypher query when finder method does not have a lucene index, #210

[2.0.1 / 2012-06-06]

• Use neo4j-core and neo4j-wrapper version 2.0.1

[2.0.0 / 2012-05-07]

(same as rc2)

[2.0.0.rc2 / 2012-05-04]

• Enable Identity Map by default
• Added versioning for Neo4j::Core

[2.0.0.rc1 / 2012-05-03]

• Fix of rake task to upgrade to 2.0
• Various Cypher DSL improvements, core(#3,#4,#5), #196
• Added Neo4j::VERSION

[2.0.0.alpha.9 / 2012-04-27]

• Fix for rails scaffold generator

[2.0.0.alpha.8 / 2012-04-27]

• Fix for "relationship to :all assigned twice for single instance" #178
• Fix for callback fire more then once (=> performance increase) #172
• Support for lucene search on array properties, #118
• Support for creating unique entities (get_or_create) #143
• Support for specifying has_n/has_one relationship with Strings instead of Class #160
• Support for serializer of hash and arrays on properties #185
• Fix for Neo4j::Rails::Relationship default property, #195
• Added support for pagination, see the neo4j-will_paginate gem
• Fixed Rails generators
• Added Cypher DSL support for is_a?
• Fix for "write_attribute persistes, contrary to AR convention" closes #182

[2.0.0.alpha.7 / 2012-04-19]

• fix for Neo4j::Config bug - did not work from rails to set the db location, closes #191
• has_n and has_one method generate class method returning the name of the relationship as a Symbol, closes #170
• Raise exception if trying to index boolean property, closes #180
• Made start_node= and end_node= protected closes 186
• Support for things like @dungeon.monsters.dangerous { |m| m[:weapon?] == 'sword' } closes #181

[2.0.0.alpha.6 / 2012-04-15]

• Complete rewrite and smaller change of API + lots of refactoring and better RSpecs
• Moved code to the neo4j-core and neo4j-wrapper gems
• Changed API - index properties using the Neo4j::Rails::Model (property :name, :index => :exact)
• Changed API - rel_type always returns a Symbol
• Changed API - #rels and #rel first parameter is always :outgoing, :incoming or :both
• Cypher DSL support, see neo4j-core
• Made the Lucene indexing more flexible
• Renamed size methods to count since it does simply count all the relationships (e.g. Person.all.count)
• Modularization - e.g. make it possible to create your own wrapper
• Added builder method for has_one relationships (just like ActiveRecord build_best_friend)

[2.0.0.alpha.5 / 2012-03-27]

• Fix for HA/cluster bug [#173]
• Upgrade to neo4j-community jars 1.7.0.alpha.1
• Fix for rails 3.2 [#131]
• Fix for BatchInserter bug, [#139]
• Added rake task for upgrading [#116]
• Added scripts for upgrading database [#116]

[2.0.0.alpha.4 / 2012-01-17]

• Fix node and rel enumerable for JRuby 1.9, Dmytrii Nagirniak
• Remove the will_paginate and move it to a separate gem Dmytrii Nagirniak, [#129][#132]
• Use type converter to determine how to handle multi-param attributes, Dmyitrii Nagirniak [#97]
• Set default storage_path in Rails to db [#96]
• Fix numeric Converter with nils and Float converter, Dmytrii Nagirniak
• Fix Neo4j::Rails::Model.find incorrect behavior with negative numbers, Dmytrii Nagirniak [#101]
• Allow to use symbols in batch inserter [#104]
• Split neo4j-jars gem into three jars, community,advanced&enterprise

== 2.0.0.alpha.1 / 2012-01-11

• Split JARS into a separate gem (neo4j-jars) [#115]
• Changed prefix of relationships so that it allows having incoming relationships from different classes with different relationship names. Migration is needed to update an already existing database - see issue #116. [#117]
• Fix for undefined method 'add_unpersited_outgoing_rel' [#111]
• Fix for Rails models named Property [#108] (Vivek Prahlad)

== 1.3.1 / 2011-12-14

• Make all relationships visible in Rails callback (rspecs #87, Dmytrii Nagirniak) [#211]
• Enable travis to build JRuby 1.9 (pull #87, Dmytrii Nagirniak) [#214]
• Support for composite lucene queries with OR and NOT (pull #89, Deepak N)
• Enforce the correct converter on a property type when the type is given (pull #86, Dmytrii Nagirniak)
• Development: make it easier to run RSpecs and guard (pull #85, Dmytrii Nagirniak)
• Added ability to disable observer (pull #84, Dmytrii Nagirniak)
• Fixing multiple assignment of has_one assocaition (pull #83 Deepak N)
• Accept association_id for has_one assocations (pull #82, Deepak N)
• Upgrade to 1.6.M01 Neo4j java jars [#209]
• Defer warning message 'Unknown outgoing relationship' (pull #81, Vivek Prahlad)
• Added string converter, e.g. property :name, :type => String (pull #80, Dmytrii Nagirniak)
• Added symbol converter e.g. property :status, :type => Symbol (pull #79, Dmytrii Nagirniak) [#205]

== 1.3.0 / 2011-12-06

• Added neo4j-upgrade script to rename lucene index files and upgrade to 1.5 [#197]
• Expose Neo4j::NodeMixin#index_types returning available indices (useful for Cypher queries) [#194]
• The to_other method is now available also in the Neo4j::Rails API [#193]
• Expose rel_type method for Neo4j::Rails::Relationship [#196]
• Support for breadth and depth first traversals [#198]
• Support for cypher query [#197]
• Fix for rule node concurrency issue (pull #78, Vivek Prahlad)
• Bugfix for the uniqueness validation for properties with quotes (pull #76, Vivek Prahlad)
• More performance tweaks (pull #75, #77, Vivek Prahlad)
• Fixing add_index for properties other than type string (pull #74, Deepak N)
• Significant performance boost for creating large numbers of models in a transaction (pull #73, Vivek Prahlad)
• Upgrade to neo4j 1.5 jars (pull #72, Vivek Prahlad)
• Fix for assigning nil values to incoming has_one relation (pull #70, Deepak N)
• Support for revert and fixes for Neo4j::Rails::Versioning (pull #71, Vivek Prahlad)

== 1.2.6 / 2011-11-02

• Generators can now generate relationships as well [#195]
• Better will_paginate support for Neo4j::Rails::Model [#194]
• Fixing updated_at to be set only if model has changed (pull #68, Deepak N)
• Bringing back changes removed during identiy map to fix bug [#190] (Deepak N)
• Fixing updated_at to be set only if model has changed, using callbacks instead of overriding method for stamping time (Deepak N)
• Added versioning support (pull #67) (Vivek Prahlad)

== 1.2.5 / 2011-10-21

• Faster traversals by avoiding loading Ruby wrappers (new method 'raw' on traversals) [#189]
• Support for IdentityMap [#188]
• Improved performance in event handler (Vivek Prahlad)
• Fixing issue with validates_presence_of validation (Vivek Prahlad)
• Implemented compositions support on Neo4j::Rails::Relationship (Kalyan Akella)
• Added after_initialize callback (Deepak N)
• Fixed performance issues on node deleted (Vivek Prahlad)
• Fixed a performance issue in the index_registry (Vivek Prahlad)
• Fixed uniqueness validation for :case_sensitive => false (Vivek Prahlad)
• Fixed update_attributes deleting relations when model is invalid (Deepak N)
• Fixed timestamp rails generator (Marcio Toshio)

== 1.2.4 / 2011-10-07

• Support for traversing with Neo4j::Node#eval_paths and setting uniqueness on traversals [#187]
• Removed unnecessary node creation on database start up (class nodes attached to reference node) (Vivek Prahlad)
• Safer multitenancy - automatically reset the reference node in thread local context after each request using rack middleware
• Bugfixes for multitenancy (Deepak N and Vivek Prahlad)

== 1.2.3 / 2011-10-01

• Multitenancy support by namespaced-indices & changeable reference node (Vivek Prahlad, pull 41)
• Added a Neo4j::Rails::Model#columns which returns all defined properties [#186]
• Fixed validation associated entities, parent model should be invalid if its nested model(s) is invalid (Vivek Prahlad)
• Fixed property validation to read value before conversion as per active model conventions (Deepak N)
• Fixed property_before_type_cast for loaded models (Deepak N)
• Better support for nested models via ActionView field_for [#185]
• BUG: fix for null pointer issue after delete_all on Neo4j::Rails::Model#has_n relationships (Vivek Prahlad)
• BUG: init_on_create was not called when creating a new relationship via the << operator [#183]

== 1.2.2 / 2011-09-15

• Added compositions support for rails mode (Deepak N)
• Added support for nested transactions at the Rails model level (Vivek Prahlad)
• Fixing issue where save for invalid entities puts them into an inconsistent state (Vivek Prahlad)
• Fix for issue with save when validation fails (Vivek Prahlad)
• Fix for accepts_nested_attributes_for when the associated entities are created before a new node (Vivek Prahlad)
• Fix to allow has_one relationships to handle nil assignments in models (Vivek Prahlad)
• Observers support for neo4j rails model using active model (Deepak N)
• Override ActiveModel i18n_scope for neo4j (Deepak N)
• Added finders similar to active record and mongoid (Deepak N)
• Added find!, find_or_create_by and find_or_initialize_by methods, similar to active record finders (Deepak N)

== 1.2.1 / 2011-08-29

• Fixed failing RSpecs for devise-neo4j gem - column_names method on neo4j orm adapter throws NoMethodError (thanks Deepak N)

== 1.2.0 / 2011-08-16

• Upgrade to java library neo4j 1.4.1, see http://neo4j.rubyforge.org/guides/configuration.html

== 1.1.4 / 2011-08-10

• Fixed dependency to will_paginate, locked to 3.0.pre4 (newly released 3.0.0 does not work yet with neo4j.rb)

  == 1.1.3 / 2011-08-09

• real recursive rule to the top class, subclasses with rules did not work (Frédéric Vanclef)

• BUG: not able to create array properties on relationships (Pere Urbon)

• BUG: lucene did not work if starting up neo4j in read only mode (like rails console when the rails is already running)

== 1.1.2 / 2011-06-08

• Added configuration option 'enable_rules' to disable the _all relationships and custom rules [#176]
• Added a #node method on the Neo4j::Node and Neo4j::NodeMixin. Works like the #rel method but returns the node instead. [#174]
• Simplify creating relationship between two existing nodes [#175]

== 1.1.1 / 2011-05-26

• Made neo4j compatible with rails 3.1.0.rc1 [#170]
• Fix for neo4j-devise [#171]
• BUG: Neo4j::GraphAlgo shortest path does raise exception if two nodes are not connected [#172]

== 1.1.0 / 2011-05-13

• Support for embedding neo4j.rb by providing an already running db instance (#168)
• Neo4j::Rails::Relationships should be ActiveModel compliant (#156)
• Support for incoming relationships in Neo4j::Rails::Model (#157)
• to_json method for models no tags √ resolved (#154)
• Implement hash so that it will work with Sets (#160)
• Modified the traverser to allow iterating over paths not just over end_nodes (#161)
• Create method should take a block to initialize itself (#162)
• Upgrade to 1.3 neo4j java library (#164)
• Default `nodes' invocation for Algo path finders (#165)
• Property and index class methods modified to take arbitrary number of symbols optionally followed by options hash (#166)
• BUG: Setting property :system on Neo4j::Rails::Model should work (#163)
• BUG: update_attributes should convert values according to Type (#155)
• BUG: Neo4j::RelationshipMixin#relationship_type broken #(169)
• BUG: Relationship.load(nil) == Relationship.load(0) (#167)
• BUG: Full text search returns nil in rails model (#153)

[1.0.0 / 2011-03-02]

• Complete rewrite of everything.
• Replaced the lucene module with using the java neo4j-lucene integration instead
• Lots of improvements of the API
• Better ActiveModel/Rails integration

[0.4.4 / 2010-08-01]

• Fixed bug on traversing when using the RelationshipMixin (#121)
• BatchInserter and JRuby 1.6 - Fix iteration error with trying to modify in-place hash

[0.4.3 / 2010-04-10]

• Fixed .gitignore - make sure that we do not include unnecessarily files like neo4j databases. Release 0.4.2 contained test data.
• Added synchronize around Index.new so that two thread can't modify the same index at the same time.

[0.4.2 / 2010-04-08]

• No index on properties for the initialize method bug (#116)
• Tidy up Thread Synchronization in Lucene wrapper - lucene indexing performance improvement (#117)
• Permission bug loading neo4j jar file (#118)
• Spike: Make NodeMixin ActiveModel complient - experimental (#115)

[0.4.1 / 2010-03-11]

• Migrations (#108)
• BatchInserter (#111)
• Neo4j::Relationship.new should take a hash of properties (#110)
• Upgrade to neo4j-1.0 (#114)
• Bigfix: has_one should replace old relationship (#106)
• Bugfix: custom accessors for NodeMixin#update (#113)
• Bugfix: Indexed properties problem on extented ruby classes critical "properties indexer" (#112)

[0.4.0 / 2010-02-06]

• Performance improvements and Refactoring: Use and Extend Neo4j Java Classes (#97)
• Support for Index and Declaration of Properties on Relationships (#91)
• Upgrade to neo4j-1.0 rc (#100)
• All internal properties should be prefix with a '_',0.4.0 (#105)
• Generate relationship accessor methods for declared has_n and has_one relationships (#104)
• New way of creating relationship - Neo4j::Relationship.new (#103)
• Neo4j#init_node method should take one or more args (#98)
• Namespaced relationships: has_one...from using the wrong has_n...to(#92)
• Neo4j::NodeMixin and Neo4j::Node should allow a hash for initialization (#99)

[0.3.3 / 2009-11-25]

• Support for a counter property on has_lists (#75)
• Support for Cascade delete. On has_n, had_one and has_list (#81)
• NodeMixin#all should work with inheritance - Child classes should have a relationship of their own. (#64)
• Support for other lucene analyzer then StandardAnalyzer (#87)
• NodeMixin initialize should accept block like docs (#82)
• Add incoming relationship should work as expected: n1.relationships.incoming(:foo) << n2 (#80)
• Delete node from a has_list relationship should work as expected (#79)
• Improve stacktraces (#94)
• Removed sideeffect of rspecs (#90)
• Add debug method on NodeMixin to print it self (#88)
• Removed to_a method (#73)
• Upgrade to neo4j-1.0b10 (#95)
• Upgrade to lucene 2.9.0 (#83)
• Refactoring: RSpecs (#74)
• Refactoring: aggregate each, renamed to property aggregator (#72)
• BugFix: neo4j gem cannot be built from the source (#86)
• BugFix: Neo4j::relationship should not raise Exception if there are no relationships (#78)

[0.3.2 / 2009-09-17]

• Added support for aggregating nodes (#65)
• Wrapped Neo4j GraphAlgo AllSimplePath (#70)
• Added traversal with traversal position (#71)
• Removed DynamicAccessors mixin, replaced by [] operator (#67)
• Impl Neo4j.all_nodes (#69)
• Upgrated Neo4j jar file to 1.0-b9
• The Neo4j#relationship method now allows a filter parameter (#66)
• Neo4j.rb now can read database not created by Neo4j.rb - does not require classname property (#63)
• REST - added an "all" value for the depth traversal query parameter (#62)
• REST - Performance improvments using the Rest Mixin (#60)

[0.3.1 / 2009-07-25]

• Feature, extension - find path between given pair of nodes (#58)
• Fix a messy exception on GET /nodes/UnknownClassName (#57)
• Bug - exception on GET /nodes/classname/rel if rel is a has_one relationship (#56)
• Bug: GET /nodes/classname missing out nodes with no properties (#55)
• Bug: Lucene sorting caused exception if there were no documents (#54)
• Bug: reindexer fails to connect nodes to the IndexNode (#53)

[0.3.0 / 2009-06-25]

• Neo4j should track node changes
• RESTful support for lucene queries, sorting and paging
• RESTful support for Relationships
• RESTful support for Node and properties
• Experimental support for Master-Slave Replication via REST
• RESTful Node representation should contain hyperlinks to relationships
• Added some handy method like first and empty? on relationships
• Use new neo4j: neo-1.0-b8
• Add an event handler for create/delete nodes start/stop neo, update property/relationship
• The NodeMixin should behave like a hash, added [] and []= methods
• Support list topology - has_list and belongs_to_list Neo4j::NodeMixin Classmethods
• Should be possible to add relationships without declaring them (Neo4j#relationships.outgoing(:friends) << node)
• Neo4j extensions file structure, should be easy to create your own extensions
• Rename relation to relationship (Neo4j::Relations => Neo4j::Relationships, DynamicRelation => Relationship) [data incompatible change]
• Auto Transaction is now optional
• Setting Float properties fails under JRuby1.2.0
• Bug: Indexing relationships does not work
• Make the ReferenceNode include Neo4j::NodeMixin
• Added handy Neo4j class that simply includes the Neo4j::NodeMixin
• Neo4j::IndexNode now holds references to all nodes (Neo4j.ref_node -> Neo4j::IndexNode -> ...)

[0.2.1 / 2009-03-15]

• Refactoring of lucene indexing of the node space (28)
• Fixed bug on Neo4j::Nodemixin#property? (#22)

[0.2.0 / 2009-01-20]

• Impl. Neo4j::Node#traverse - enables traversal and filtering using TraversalPosition info (#17,#19)
• Impl. traversal to any depth (#15)
• Impl. traversal several relationships type at the same time (#16)
• Fixed a Lucene timezone bug (#20)
• Lots of refactoring of the neo4j.rb traversal code and RSpecs

[0.1.0 / 2008-12-18]

• Property can now be of any type (and not only String, Fixnum, Float)
• Indexing and Query with Date and DateTime
• YARD documentation
• Properties can be removed
• A property can be set to nil (it will then be removed).

[0.0.7 / 2008-12-10]

• Added method to_param and methods on the value object needed for Ruby on Rails
• Impl. update from a value object/hash for a node
• Impl. generation of value object classes/instances from a node.
• Refactoring the Transaction handling (reuse PlaceboTransaction instances if possible)
• Removed the need to start and stop neo. It will be done automatically when needed.

[0.0.6 / 2008-12-03]

• Removed the configuration from the Neo4j.start method. Now exist in Neo4j::Config and Lucene::Config.
• Implemented sort_by method.
• Lazy loading of search result. Execute the query and load the nodes only if needed.
• Added support to use lucene query language, example: Person.find("name:foo AND age:42")
• All test now uses RAM based lucene indexes.

[0.0.5 / 2008-11-17]

• Supports keeping lucene index in memory instead of on disk
• Added support for lucene full text search
• Fixed so neo4j runs on JRuby 1.1.5
• Implemented support for reindex all instances of a node class. This is needed if the lucene index is kept in memory or if the index is changed.
• Added ReferenceNode. All nodes now have a relationship from this reference node.
• Lots of refactoring
• Added the IMDB example. It shows how to create a neo database, lucene queries and node traversals.

[0.0.4 / 2008-10-23]

• First release to rubyforge