Midgard Updates

Midgard core 10.05.5.1 hotfix

piotrek.pokora@gmail.com (Piotr Pokora) — Wed, 16 Nov 2011 08:14:09 +0000

Midgard core 10.05.5.1 hotfix has been released.
It includes set_guid method bugfix.

Midgard 10.05.5 Ratatoskr LTS released!

piotrek.pokora@gmail.com (Piotr Pokora) — Wed, 02 Nov 2011 15:39:05 +0000

Lodz, November 2nd 2011 -- The Midgard Project has released the fifth maintenance release of Midgard2 10.05.5 "Ratatoskr" LTS. Ratatoskr LTS is a Long Term Support version of Midgard2 Content Repository.

About 10.05 releases

Midgard2 10.05 is targeted at web framework and desktop application developers. It provides a comprehensive set of content repository APIs that can be used to build replicated information applications that share their information using a common storage layer and replication tools.

In this release we provide:

Content Repository API bindings for the following programming languages: C, Python, PHP and Objective-C. D-Bus signals are used to inform different Midgard2 applications about things happening in the repository, enabling for example a PHP website and a Python background process to communicate with each other.
Midgard MVC, an elegant framework for PHP web applications. Midgard MVC includes interfaces for loadable components, hierarchical sub-requests, a forms system and much more.
Midgard Runtime that combines the Midgard MVC, a PHP application server and a WebKit UI to provide a full Midgard web development environment on the desktop.

Main changes from 10.05.4 release:

Core

Added Workspaces
Added new Validable and Executable interfaces
Added save() method to MidgardObject
Added MidgardRepligard class
Added support for abstract classes, interfaces and mixins
Added new methods to reflector classes
MidgardView bugfixes and improvements
Other major bugfixes

See the full list

PHP extension

Added reflector classes
Added missed MidgardConnection's methods
Midgard core classes are registered with CamelCase naming convention
GLib errors are propagated as PHP ones
Other bugfixes

See the full list

Main changes from 9.09 releases:

Improved core which supports GObject Introspection
Built on top of Libgda4
Replication , quota and DBus are now optional and fully configurable
Improved performance

New functionalities in 10.05 releases:

New reflection and introspection routines
New database query interfaces
New language bindings: vala and mono (C#)

Midgard2

Midgard2 is a content repository. It provides an object-oriented and replicated environment for building data-intensive applications. This provides several advantages

Common rules for data access mean that multiple applications can work with same content without breaking consistency of the data
Signals about changes let applications know when another application using the repository modifies something, enabling collaborative data management between apps
Objects instead of SQL mean that developers can deal with data using APIs more compatible with the rest of their desktop programming environment, and without having to fear issues like SQL injection
Data model is scriptable when you use a content repository, meaning that users can easily write Python or PHP scripts to perform batch operations on their data without having to learn your storage format
Synchronization and sharing features can be implemented on the content repository level meaning that you gain these features without having to worry about them

Midgard's philosophy includes building on top of a well-known and supported GNOME libraries like glib and libgda on the system end, and connecting with popular programming languages like PHP and Python. Data storage can utilize SQLite with desktop and mobile applications, or a database server like MySQL or Postgres for web application storage.

The Midgard2 platform enables developers to define a storage structure once and use it on both web and desktop applications, with the possibility of easy data replication between the two.

Read more about Midgard's content repository approach:

New Midgard architecture

Language independence

Midgard is also language independent and due to its powerful architecture has proven as stable, secure and flexible solution implemented in various environments:

PHP5 extension for web application and CMS development
Python module for desktop application and background process development
Objective-C package for Mac OS X and GNUstep developers

It also provides bindings for other languages:

Vala
Mono (C#)

Database independence

The Midgard 1.x was heavily coupled with the MySQL database. The new Midgard2 architecture is instead built on top of libgda, the GNOME database abstraction layer. This enables Midgard to be used with various storage engines, including:

MySQL
Postgres
SQLite
Microsoft SQL Server
Oracle
DB2

Built-in replication and metadata

All Midgard objects are automatically equipped with a consistent set of metadata properties that can be used for access control and workflow.

In addition, Midgard provides an API for serializing and unserializing stored objects in XML format that can be used for replicating data between different systems. The replication architecture can be used for staging/live web environments or mobile applications that synchronize between each other or a web back-end.

Midgard resources

User and developers support:

Users' forum
Developers' forum
IRC: #midgard on irc.freenode.net
#midgard on Qaiku
MidgardProject on Twitter

About Midgard

The Midgard Framework development started in 1997 and it was initially released as free software in May 1999. Midgard Project has since gathered an active user and developer community, powering thousands of web sites ranging from simple organizational intranets to large community portals.

Midgard is being developed by an international team of professionals. Midgard's development team includes new media designers, system integrators and content management consultants. Midgard development has been supported by several commercial and governmental entities including the European Union and the Swedish Internet Foundation.

Midgard2 is free software available under the GNU LGPL license.

http://www.midgard2.org

Contacts

Piotr Pokora, Midgard release manager piotrek.pokora(at)gmail.com

Henri Bergius, Midgard spokesman henri.bergius(at)iki.fi

The Midgard Project http://www.midgard-project.org

Midgard2 10.05.4 "Ratatoskr" LTS released!

piotrek.pokora@gmail.com (Piotr Pokora) — Tue, 01 Mar 2011 12:18:22 +0000

Lodz, March 1st 2011 -- The Midgard Project has released the fourth maintenance release of Midgard2 10.05.4 "Ratatoskr" LTS. Ratatoskr LTS is a Long Term Support version of Midgard2 Content Repository.

About 10.05 releases

In this release we provide:

Content Repository API bindings for the following programming languages: C, Python, PHP and Objective-C. D-Bus signals are used to inform different Midgard2 applications about things happening in the repository, enabling for example a PHP website and a Python background process to communicate with each other.
Midgard MVC, an elegant framework for PHP web applications. Midgard MVC includes interfaces for loadable components, hierarchical sub-requests, a forms system and much more.
Midgard Runtime that combines the Midgard MVC, a PHP application server and a WebKit UI to provide a full Midgard web development environment on the desktop.

Main changes from 10.05.3 release:

Core

Fixed MidgardUser memory leaks (#71, #72, #73)
Fixed SQL prepared statements memory leaks (#76)
Major memory leak fixes

PHP extension

Improved MidgardConnection singleton
Improved property handling routines
Major memory leak fixes

Main changes from 9.09 releases:

Improved core which supports GObject Introspection
Built on top of Libgda4
Replication , quota and DBus are now optional and fully configurable
Improved performance

New functionalities in 10.05 releases:

New reflection and introspection routines
New database query interfaces
New language bindings: vala and mono (C#)

Midgard2

Midgard2 is a content repository. It provides an object-oriented and replicated environment for building data-intensive applications. This provides several advantages

Common rules for data access mean that multiple applications can work with same content without breaking consistency of the data
Signals about changes let applications know when another application using the repository modifies something, enabling collaborative data management between apps
Objects instead of SQL mean that developers can deal with data using APIs more compatible with the rest of their desktop programming environment, and without having to fear issues like SQL injection
Data model is scriptable when you use a content repository, meaning that users can easily write Python or PHP scripts to perform batch operations on their data without having to learn your storage format
Synchronization and sharing features can be implemented on the content repository level meaning that you gain these features without having to worry about them

The Midgard2 platform enables developers to define a storage structure once and use it on both web and desktop applications, with the possibility of easy data replication between the two.

Read more about Midgard's content repository approach:

New Midgard architecture

Language independence

Midgard is also language independent and due to its powerful architecture has proven as stable, secure and flexible solution implemented in various environments:

PHP5 extension for web application and CMS development
Python module for desktop application and background process development
Objective-C package for Mac OS X and GNUstep developers

It also provides bindings for other languages:

Vala
Mono (C#)

Database independence

MySQL
Postgres
SQLite
Microsoft SQL Server
Oracle
DB2

Built-in replication and metadata

All Midgard objects are automatically equipped with a consistent set of metadata properties that can be used for access control and workflow.

Midgard resources

User and developers support:

Users' forum
Developers' forum
IRC: #midgard on irc.freenode.net
#midgard on Qaiku
MidgardProject on Twitter

About Midgard

Midgard2 is free software available under the GNU LGPL license.

http://www.midgard2.org

Contacts

Piotr Pokora, Midgard release manager piotrek.pokora(at)gmail.com

Henri Bergius, Midgard spokesman henri.bergius(at)iki.fi

The Midgard Project http://www.midgard-project.org

Midgard2 10.05.3 "Ratatoskr" LTS released!

piotrek.pokora@gmail.com (Piotr Pokora) — Tue, 08 Feb 2011 08:55:44 +0000

Lodz, Feb 08th 2011 -- The Midgard Project has released the third maintenance release of Midgard2 10.05.3 "Ratatoskr" LTS. Ratatoskr LTS is a Long Term Support version of Midgard2 Content Repository.

About 10.05 releases

In this release we provide:

Content Repository API bindings for the following programming languages: C, Python, PHP and Objective-C. D-Bus signals are used to inform different Midgard2 applications about things happening in the repository, enabling for example a PHP website and a Python background process to communicate with each other.
Midgard MVC, an elegant framework for PHP web applications. Midgard MVC includes interfaces for loadable components, hierarchical sub-requests, a forms system and much more.
Midgard Runtime that combines the Midgard MVC, a PHP application server and a WebKit UI to provide a full Midgard web development environment on the desktop.

Main changes from 10.05.2 release:

Core

Added LDAP authentication type (#68)
Added new signals to QueryExecutor (#57)
Added support for metadata in views (#48)
Added RDF mapping for selected base classes (#55)
Improved delete operation for classes without metadata (#45)
Improved performance of SQL UPDATE queries (MidgardObject derived classes) (#46)
Fixed QuerySelect bugs (add_order, set_offset, INTREE operator) (#50, #51, #60)
Fixed memory leaks in QuerySelect (#44)
Fixed generated SQL queries (#41, #42, #47,#49, #52, #58)

PHP extension

Added GMainLoop wrapper (#33)
Added midgard_connection reopen method (#19)
Improved midgard_object derived class' constructor (#20)
Fixed metadata property bugs (#22, #25, #26, #32)
Fixed memamory leaks (#22)

Main changes from 9.09 releases:

Improved core which supports GObject Introspection
Built on top of Libgda4
Replication , quota and DBus are now optional and fully configurable
Improved performance

New functionalities in 10.05 releases:

New reflection and introspection routines
New database query interfaces
New language bindings: vala and mono (C#)

Midgard2

Midgard2 is a content repository. It provides an object-oriented and replicated environment for building data-intensive applications. This provides several advantages

Common rules for data access mean that multiple applications can work with same content without breaking consistency of the data
Signals about changes let applications know when another application using the repository modifies something, enabling collaborative data management between apps
Objects instead of SQL mean that developers can deal with data using APIs more compatible with the rest of their desktop programming environment, and without having to fear issues like SQL injection
Data mode l is scriptable when you use a content repository, meaning that users can easily write Python or PHP scripts to perform batch operations on their data without having to learn your storage format
Synchronization and sharing features can be implemented on the content repository level meaning that you gain these features without having to worry about them

The Midgard2 platform enables developers to define a storage structure once and use it on both web and desktop applications, with the possibility of easy data replication between the two.

Read more about Midgard's content repository approach:

New Midgard architecture

Language independence

Midgard is also language independent and due to its powerful architecture has proven as stable, secure and flexible solution implemented in various environments:

PHP5 extension for web application and CMS development
Python module for desktop application and background process development
Objective-C package for Mac OS X and GNUstep developers

It also provides bindings for other languages:

Vala
Mono (C#)

Database independence

MySQL
Postgres
SQLite
Microsoft SQL Server
Oracle
DB2

Built-in replication and metadata

All Midgard objects are automatically equipped with a consistent set of metadata properties that can be used for access control and workflow.

Midgard resources

User and developers support:

Users' forum
Developers' forum
IRC: #midgard on irc.freenode.net
#midgard on Qaiku
MidgardProject on Twitter

About Midgard

Midgard2 is free software available under the GNU LGPL license.

http://www.midgard2.org

Contacts

Piotr Pokora, Midgard release manager piotrek.pokora(at)gmail.com

Henri Bergius, Midgard spokesman henri.bergius(at)iki.fi

The Midgard Project http://www.midgard-project.org

MidgardCR 10.12 "Hrungnir" released

piotrek.pokora@gmail.com (Piotr Pokora) — Thu, 16 Dec 2010 15:45:50 +0000

Lodz, Dec 16th 2010 -- The Midgard Project has released the first release of the third generation of the Midgard Content Repository.

MidgardCR 10.12 "Hrungnir" is a technology preview of the third generation of the Midgard Content Repository. It is released to allow developers to gain familiarity with the upcoming Midgard storage APIs and RDF storage.

MidgardCR is available as a GObject-oriented C library with language bindings for multiple languages including Python, JavaScript, Scheme and Java through GObject Introspection.

Content managed in MidgardCR can be stored to multiple relational databases supported by the GNOME Database Abstraction Library. Databases tested with MidgardCR include SQLite, MySQL and Postgres.

Why use a Content Repository?

Content Repository is a service that sits between an application and a data store. It provides several advantages to using application-specific data storage:

Common rules for data access mean that multiple applications can work with same content without breaking consistency of the data
Signals about changes let applications know when another application using the repository modifies something, enabling collaborative data management between apps
Objects instead of SQL mean that developers can deal with data using APIs more compatible with the rest of their desktop programming environment, and without having to fear issues like SQL injection
Data model is scriptable when you use a content repository, meaning that users can easily write Python or PHP scripts to perform batch operations on their data without having to learn your storage format
Synchronization and sharing features can be implemented on the content repository level meaning that you gain these features without having to worry about them

Key features

Flexible storage definitions

In previous Midgard content repository versions the content models have been defined with MgdSchema XML files loaded at application start-up. MidgardCR makes this approach more flexible by providing fully programmable interfaces for model definition.

Vala example:

/* Define Person class */
ObjectModel person_model = new ObjectModel ("Person");    
/* Define properties: 'firstname' and 'lastname' */
person_model
    .add_model (new ObjectPropertyModel ("firstname", "string", ""))
    .add_model (new ObjectPropertyModel ("lastname", "string", ""));

Multiple database connections

Content storage and retrieval in MidgardCR is handled through Storage Managers. This approach allows multiple different databases and connections to be used within an application, and storing different types of content to most appropriate backends.

Vala example:

SQLStorageManager storage_manager = null;

/* Create new Config which sets SQL database type and its name */
Config config = new Config ();    
config.dbtype = "SQLite";
config.dbname = "ExampleDB";
config.dbdir = "./";

/* Create new, named StorageManager for given Config instance */
try {
    storage_manager = new SQLStorageManager ("test_manager", config);
} catch (StorageManagerError e) {
    GLib.warning ("Failed to initialize new SQLStorageManager");
}

/* Open connection to underlying SQL database and "bootstrap" storage */
try {
    storage_manager.open ();
    storage_manager.initialize_storage ();
} catch (StorageManagerError e) {
    GLib.warning (e.message);
}

RDF storage and querying

In addition to object storage, MidgardCR also provides APIs for storing and querying RDF triples. This makes Midgard a capable Content Repository also for Linked Data applications.

RDF storage example:

var rdf_vali = new RDFGenericObject ("http://xmlns.com/foaf/0.1/Person");
rdf_vali.identifier = "http://www.midgard-project.org/people/vali";

rdf_vali.set_property_literal ("foaf:currentProject", "http://www.midgard-project.org/");
rdf_vali.set_property_value ("foaf:myersBriggs",    "INTJ");
rdf_vali.set_property_value ("foaf:name",           "Vali");
rdf_vali.set_property_value ("foaf:homepage",       "http://www.midgard-project.org/people/vali");

RDF querying example:

/* Query Data */
var query = content_manager.query_manager.create_query_select ("foaf:Person");
query.set_constraint (new SQLQueryConstraint(
    new QueryProperty ("http://xmlns.com/foaf/0.1/currentProject", null),
    "=",
    QueryValue.create_with_value ("http://www.midgard-project.org/"),
    null
));

query.validate();
query.execute();

GLib.print ("These people work on midgard!\n");
foreach (Storable object in query.list_objects ()) {
    RDFGenericObject rdf_obj = (RDFGenericObject) object;
    var name = rdf_obj.get_property_value ("foaf:name");
    GLib.print("\t%s\n", name != null ? (string) name : "Empty name");
}

Upcoming features

The first production-ready MidgardCR release is targeted for April 2011. This release will add functionality to the library including:

Workspaces support. Workspaces in MidgardCR provide a sort of branching interface on top of a relational databases. Instances of same content can live in different branches, and queries can work with a tree of branches. This allows for efficient and clean management of different workflow, data validation and temporary storage needs.
PHP5 bindings through the GObject for PHP extension: https://bitbucket.org/indeyets/gobject-for-php
Replication support
SPARQL query interface

Installing MidgardCR

MidgardCR can be installed from sources with manual builds or easier, from binary packages. Instructions about installation can be found at download page http://www.midgard-project.org/download/10-12/

Contributing

MidgardCR is a free software library licensed under LGPL. It is developed using the Vala language and managed on GitHub.

Issues can be reported in https://github.com/midgardproject/midgard-core/issues.

Developers interested in working on the MidgardCR library are free to fork the project with Git and submit pull requests to the project.

There is a development mailing list available at http://lists.midgard-project.org/mailman/listinfo/dev and a #midgard IRC channel on FreeNode.

Contact

Piotr Pokora piotrek.pokora@gmail.com

Henri Bergius henri.bergius@iki.fi

Midgard2 10.05.2 "Ratatoskr" LTS released!

piotrek.pokora@gmail.com (Piotr Pokora) — Tue, 14 Dec 2010 13:37:28 +0000

Lodz, Dec 14th 2010 -- The Midgard Project has released the second maintenance release of Midgard2 10.05.2 "Ratatoskr" LTS. Ratatoskr LTS is a Long Term Support version of Midgard2 Content Repository.

About 10.05 releases

In this release we provide:

Content Repository API bindings for the following programming languages: C, Python, PHP and Objective-C. D-Bus signals are used to inform different Midgard2 applications about things happening in the repository, enabling for example a PHP website and a Python background process to communicate with each other.
Midgard MVC, an elegant framework for PHP web applications. Midgard MVC includes interfaces for loadable components, hierarchical sub-requests, a forms system and much more.
Midgard Runtime that combines the Midgard MVC, a PHP application server and a WebKit UI to provide a full Midgard web development environment on the desktop.

Main changes from 10.05.1 release:

Fixed duplicate object returned from QuerySelect (#41)
Fixed boolean property values set by QueryBuilder (#42)
Improved UPDATE SQL queries (#46)
Fixed views related SQL queries (#48, #52)
Fixed SQL queries generated by QuerySelect (#47, #49, #50, #51)
Fixed memory leaks in PHP bindings
Fixed crash in reflection property class in PHP bindings

Main changes from 9.09 releases:

Improved core which supports GObject Introspection
Built on top of Libgda4
Replication , quota and DBus are now optional and fully configurable
Improved performance

New functionalities in 10.05 releases:

New reflection and introspection routines
New database query interfaces
New language bindings: vala and mono (C#)

Midgard2

Midgard2 is a content repository. It provides an object-oriented and replicated environment for building data-intensive applications. This provides several advantages

Common rules for data access mean that multiple applications can work with same content without breaking consistency of the data
Signals about changes let applications know when another application using the repository modifies something, enabling collaborative data management between apps
Objects instead of SQL mean that developers can deal with data using APIs more compatible with the rest of their desktop programming environment, and without having to fear issues like SQL injection
Data model is scriptable when you use a content repository, meaning that users can easily write Python or PHP scripts to perform batch operations on their data without having to learn your storage format
Synchronization and sharing features can be implemented on the content repository level meaning that you gain these features without having to worry about them

The Midgard2 platform enables developers to define a storage structure once and use it on both web and desktop applications, with the possibility of easy data replication between the two.

Read more about Midgard's content repository approach:

New Midgard architecture

Language independence

Midgard is also language independent and due to its powerful architecture has proven as stable, secure and flexible solution implemented in various environments:

PHP5 extension for web application and CMS development
Python module for desktop application and background process development
Objective-C package for Mac OS X and GNUstep developers

It also provides bindings for other languages:

Vala
Mono (C#)

Database independence

MySQL
Postgres
SQLite
Microsoft SQL Server
Oracle
DB2

Built-in replication and metadata

All Midgard objects are automatically equipped with a consistent set of metadata properties that can be used for access control and workflow.

Midgard resources

User and developers support:

Users' forum
Developers' forum
IRC: #midgard on irc.freenode.net
#midgard on Qaiku
MidgardProject on Twitter

About Midgard

Midgard2 is free software available under the GNU LGPL license.

http://www.midgard2.org

Midgard2 Ratatoskr hotfix package

piotrek.pokora@gmail.com (Piotr Pokora) — Wed, 20 Oct 2010 11:25:52 +0000

Hotfix package has been released for midgard-core.

Midgard2 Ratatoskr hotfix packages

piotrek.pokora@gmail.com (Piotr Pokora) — Thu, 05 Aug 2010 09:51:27 +0000

Hotfix packages has been released for midgard-core and python-midgard.

Midgard-core 8.09.9.2 hotfix release for Ragnaroek

jval@puv.fi (Jarkko Ala-Louvesniemi) — Thu, 22 Jul 2010 11:16:48 +0000

Midgard-core hotfix package 8.09.9.2 in Ragnaroek LTS branch includes a fix for multilingual sites where data was returned in random order.

Midgard Gatherings in aKademy and FSCONS 2010

henri.bergius@iki.fi (Henri Bergius) — Wed, 30 Jun 2010 11:02:41 +0000

The Midgard Gatherings for 2010 will be held together with two free software conferences. This will be an excellent opportunity for Midgardians to meet and learn also about other related projects.

July 5-7: Midgard Gathering in aKademy, Tampere, Finland
November 4-5: Midgard Gathering in FSCONS, Gothenburg, Sweden

Midgard-core hotfix release for Ragnaroek

piotrek.pokora@gmail.com (Piotr Pokora) — Wed, 30 Jun 2010 08:01:32 +0000

Midgard-core hotfix package 8.09.9.1 in Ragnaroek LTS branch includes major fix for multilingual sites where default (fallback) language content replaced defined language content.

Midgard2 10.05.1 "Ratatoskr" LTS released!

piotrek.pokora@gmail.com (Piotr Pokora) — Tue, 22 Jun 2010 14:25:38 +0000

Lodz, June 22nd 2010 -- The Midgard Project has released the first maintenance release of Midgard2 10.05.1 "Ratatoskr" LTS. Ratatoskr LTS is a Long Term Support version of Midgard2 Content Repository.

About 10.05 releases

In this release we provide:

Content Repository API bindings for the following programming languages: C, Python, PHP and Objective-C. D-Bus signals are used to inform different Midgard2 applications about things happening in the repository, enabling for example a PHP website and a Python background process to communicate with each other.
Midgard MVC, an elegant framework for PHP web applications. Midgard MVC includes interfaces for loadable components, hierarchical sub-requests, a forms system and much more.
Midgard Runtime that combines the Midgard MVC, a PHP application server and a WebKit UI to provide a full Midgard web development environment on the desktop.

Main changes from 10.05.0 release:

Major fixes in new MidgardQuery classes
Many improvements for GObject Introspection
Fixed critical issues in MidgardView generation
MidgardQuery classes has been implemented in PHP and Python bindings
Improved installer for Midgard Runtime
midgard_dbus class available in PHP bindings only if core is built with DBus support
Fixed datetime related crash in Python bindings

Main changes from 9.09 releases:

Improved core which supports GObject Introspection
Built on top of Libgda4
Replication , quota and DBus are now optional and fully configurable
Improved performance

New functionalities in 10.05 releases:

New reflection and introspection routines
New database query interfaces
New language bindings: vala and mono (C#)

Midgard2

Midgard2 is a content repository. It provides an object-oriented and replicated environment for building data-intensive applications. This provides several advantages

Common rules for data access mean that multiple applications can work with same content without breaking consistency of the data
Signals about changes let applications know when another application using the repository modifies something, enabling collaborative data management between apps
Objects instead of SQL mean that developers can deal with data using APIs more compatible with the rest of their desktop programming environment, and without having to fear issues like SQL injection
Data model is scriptable when you use a content repository, meaning that users can easily write Python or PHP scripts to perform batch operations on their data without having to learn your storage format
Synchronization and sharing features can be implemented on the content repository level meaning that you gain these features without having to worry about them

The Midgard2 platform enables developers to define a storage structure once and use it on both web and desktop applications, with the possibility of easy data replication between the two.

Read more about Midgard's content repository approach:

New Midgard architecture

Language independence

Midgard is also language independent and due to its powerful architecture has proven as stable, secure and flexible solution implemented in various environments:

PHP5 extension for web application and CMS development
Python module for desktop application and background process development
Objective-C package for Mac OS X and GNUstep developers

It also provides bindings for other languages:

Vala
Mono (C#)

Database independence

MySQL
Postgres
SQLite
Microsoft SQL Server
Oracle
DB2

Built-in replication and metadata

All Midgard objects are automatically equipped with a consistent set of metadata properties that can be used for access control and workflow.

Midgard resources

User and developers support:

Users' forum
Developers' forum
IRC: #midgard on irc.freenode.net
#midgard on Qaiku
MidgardProject on Twitter

About Midgard

Midgard2 is free software available under the GNU LGPL license.

http://www.midgard2.org

Contacts

Piotr Pokora, Midgard release manager piotrek.pokora(at)gmail.com

Henri Bergius, Midgard spokesman henri.bergius(at)iki.fi

The Midgard Project http://www.midgard-project.org

Midgard "Ragnaroek" 8.09.9 released!

piotrek.pokora@gmail.com (Piotr Pokora) — Tue, 22 Jun 2010 09:30:02 +0000

Lodz, June 22nd 2010 -- The Midgard Project has released the ninth maintenance release of Midgard 8.09 Ragnaroek LTS. Ragnaroek LTS is a Long Term Support version of the free software Content Management Framework.

Midgard is an industrial CMS built on top of a Content Repository and the LAMP stack. It provides object-oriented PHP APIs for developing and modifying website functionalities, and a PEAR-based system for installing new web components from a growing online library. Midgard has been running since 1999 on systems ranging from simple organizational websites to complex web communities and corporate management tools, in organizations like Aalto University, Nokia, Lufthansa, HP, Poland International Fairs and CMS Watch.

The stable 8.09.9 release is recommended for all users of Midgard.

Main changes from 8.09.8:

Rewritten Multilang queries (#1776)
Fixed crashes (#1547, #1684)
Fixed major MidCOM admin and style issues (#1779, #1788)
Midgard internal features are now optional for better performance tunning (#1851)
Many bugfixes and feature enhancements

In total more than 90 feature requests or bugs have been handled in this release. See the Midgard issue tracker for a full list.

Binary packages

The Midgard Project provides binary packages that are ready to install for most popular Linux distributions. This includes various versions of Debian, Fedora, Ubuntu, RHEL and openSUSE. See the full list:

http://download.opensuse.org/repositories/home:/midgardproject:/ragnaroek/

Distribution-specific installation instructions can be found from the Midgard documentation site.

Source downloads

http://www.midgard-project.org/download/

Instructions for building Midgard from the sources can be found from the Midgard documentation site.

Getting started

On a typical Linux distribution setting up Midgard is quite trivial. Simply add the Midgard repository to your configuration, and then run: # apt-get update # apt-get install midgard-data # datagard

After this you should have a running Midgard server. Simply access it with the browser and follow the instructions provided on the Midgard Getting Started guide

Issue tracker & getting help

See the Midgard issue tracker for currently open issues and planned enhancements. http://trac.midgard-project.org/roadmap

If you need help with your Midgard setup, the #midgard IRC channel on freenode is the best place to start. There is also an user mailing list.

More information

Piotr Pokora, Midgard release manager piotrek.pokora(at)gmail.com

Henri Bergius, Midgard bug master henri.bergius(at)iki.fi

The Midgard Project http://www.midgard-project.org/

Midgard2 has moved to GitHub

henri.bergius@iki.fi (Henri Bergius) — Fri, 21 May 2010 09:44:30 +0000

Development of Midgard2, the generic content repository for web and desktop applications is now happening on GitHub. From Henri Bergius:

Now that Midgard2 is at Long-Term Supported stage it was time to finally make the jump and migrate our development efforts to happen on top of Git, the fast version control system. To maximize project visibility and enable easy tool access we chose GitHub as the Git hosting provider.

While migrating to Git we also decided to implement the Distributed Version Control model where the MidgardProject account contains "blessed" repositories of various modules of the Midgard2 ecosystem, with development happening in personal clones. Maintainers of Midgard modules will be responsible for merging changes from developers back upstream, based on pull requests.

Read more from the Midgard developer list thread.

Midgard2 10.05 "Ratatoskr" released!

piotrek.pokora@gmail.com (Piotr Pokora) — Thu, 06 May 2010 20:17:43 +0000

Lodz, May 6th 2010 -- The Midgard Project has released the first release of Midgard2 10.05 "Ratatoskr" LTS. Ratatoskr LTS is a Long Term Support version of Midgard2 Content Repository.

About 10.05 releases

In this release:

Content Repository API bindings for the following programming languages: C, Python, PHP, C# and Vala. D-Bus signals are used to inform different Midgard2 applications about things happening in the repository, enabling for example a PHP website and a Python background process to communicate with each other.
Midgard MVC, an elegant framework for PHP web applications. Midgard MVC includes interfaces for loadable components, hierarchical sub-requests, a forms system and much more.
Midgard Runtime that combines the Midgard MVC, a PHP application server and a WebKit UI to provide a full Midgard web development environment on the desktop.

Main changes from 9.09 releases:

Improved core which supports GObject Introspection
Built on top of Libgda4
Replication , quota and DBus are now optional and fully configurable
Improved performance

New functionalities in 10.05 releases:

New reflection and introspection routines
New database query interfaces
New language bindings: vala and mono (C#)

Midgard2

Midgard2 is a content repository. It provides an object-oriented and replicated environment for building data-intensive applications. This provides several advantages

Common rules for data access mean that multiple applications can work with same content without breaking consistency of the data
Signals about changes let applications know when another application using the repository modifies something, enabling collaborative data management between apps
Objects instead of SQL mean that developers can deal with data using APIs more compatible with the rest of their desktop programming environment, and without having to fear issues like SQL injection
Data model is scriptable when you use a content repository, meaning that users can easily write Python or PHP scripts to perform batch operations on their data without having to learn your storage format
Synchronization and sharing features can be implemented on the content repository level meaning that you gain these features without having to worry about them

The Midgard2 platform enables developers to define a storage structure once and use it on both web and desktop applications, with the possibility of easy data replication between the two.

Read more about Midgard's content repository approach:

New Midgard architecture

Language independence

Midgard is also language independent and due to its powerful architecture has proven as stable, secure and flexible solution implemented in various environments:

PHP5 extension for web application and CMS development
Python module for desktop application and background process development
Objective-C package for Mac OS X and GNUstep developers

It also provides bindings for other languages:

Vala
Mono (C#)

Database independence

MySQL
Postgres
SQLite
Microsoft SQL Server
Oracle
DB2

Built-in replication and metadata

All Midgard objects are automatically equipped with a consistent set of metadata properties that can be used for access control and workflow.

Midgard resources

User and developers support:

Users' forum
Developers' forum
IRC: #midgard on irc.freenode.net
#midgard on Qaiku
MidgardProject on Twitter

About Midgard

Midgard2 is free software available under the GNU LGPL license.

http://www.midgard2.org

Contacts

Piotr Pokora, Midgard release manager piotrek.pokora(at)gmail.com

Henri Bergius, Midgard spokesman henri.bergius(at)iki.fi

The Midgard Project http://www.midgard-project.org

Midgard "Ragnaroek" 8.09.8 released!

piotrek.pokora@gmail.com (Piotr Pokora) — Wed, 24 Mar 2010 20:07:19 +0000

Lodz, March 24th 2010 -- The Midgard Project has released the eighth maintenance release of Midgard 8.09 Ragnaroek LTS. Ragnaroek LTS is a Long Term Support version of the free software Content Management Framework.

Midgard is an industrial CMS built on top of a Content Repository and the LAMP stack. It provides object-oriented PHP APIs for developing and modifying website functionalities, and a PEAR-based system for installing new web components from a growing online library. Midgard has been running since 1999 on systems ranging from simple organizational websites to complex web communities and corporate management tools, in organizations like Aalto University, Nokia, Lufthansa, Poland International Fairs and CMS Watch.

The stable 8.09.8 release is recommended for all users of Midgard.

Main changes from 8.09.7:

Usability of the on-site Midgard toolbar has been enhanced (#877, #1624)
Performance when using the MidCOM content cache has been improved (#1599, #1531, #1048, #1577 and #1584)
bundled jQuery javascript library has been upgraded to version 1.4.2 (#1596) and jQuery UI to 1.7.2 (#696)
PHP 5.3 compatibility on both php5-midgard (#1433) and MidCOM levels
Asgard now shows contextual helpers when creating Midgard templates (#1595)
Midgard is able to act as both OpenID provider (#1664) and consumer (#1709)
Fixed SQL errors in complex Query Builder queries (#1625)
Fixed midgard_connection environment settings in Apache environment (#1689)
midcom.helper.datamanager was deprecated in favor of datamanager2 (#930) and will be removed in 8.09.9 (#1715)
Updated OpenPSA packages (#1655)

In total more than 150 feature requests or bugs have been handled in this release. See the Midgard issue tracker for a full list.

Binary packages

http://download.opensuse.org/repositories/home:/midgardproject:/ragnaroek/

Distribution-specific installation instructions can be found from the Midgard documentation site.

Source downloads

http://www.midgard-project.org/download/

Instructions for building Midgard from the sources can be found from the Midgard documentation site.

Getting started

On a typical Linux distribution setting up Midgard is quite trivial. Simply add the Midgard repository to your configuration, and then run:

# apt-get update

# apt-get install midgard-data

# datagard

After this you should have a running Midgard server. Simply access it with the browser and follow the instructions provided on the Midgard Getting Started guide:
http://www.midgard-project.org/documentation/getting-started/

Issue tracker & getting help

See the Midgard issue tracker for currently open issues and planned enhancements.

http://trac.midgard-project.org/roadmap

If you need help with your Midgard setup, the #midgard IRC channel on freenode is the best place to start. There is also an user mailing list.

More information

Piotr Pokora, Midgard release manager
piotrek.pokora(at)gmail.com

Henri Bergius, Midgard bug master
henri.bergius(at)iki.fi

The Midgard Project
http://www.midgard-project.org/

Midgard2 core hotfix package

piotrek.pokora@gmail.com (Piotr Pokora) — Tue, 23 Feb 2010 12:54:23 +0000

Midgard2-core (Mjolnir) hotfix package available for downloads.

Fixes include:

Fix for strings being incorrectly escaped, when registered as view property. This fix is actually workaround for Libgda' routines which transform binary values to string ones.
Minor fix for MidgardObject create() method, which in some particular cases (and very rarely) could create two objects identified by the same guid.

Hotfix is also available as binary packages.

Midgard2 9.09.2 "Mjolnir" released

piotrek.pokora@gmail.com (Piotr Pokora) — Mon, 25 Jan 2010 14:38:08 +0000

Lodz, January 25th 2010 -- The Midgard Project has released maintenance release of Midgard2 9.09 "Mjolnir" - second release of the new generation of the Midgard content repository.

About 9.09 releases

Midgard2 9.09 is targeted at web framework and desktop application developers. It provides a comprehensive set of content repository APIs that can be used to build replicated information applications that share their information using a common storage layer and replication tools.

In this release we provide Content Repository API bindings for the following programming languages: C, Python, PHP and Objective-C. D-Bus signals are used to inform different Midgard2 applications about things happening in the repository, enabling for example a PHP website and a Python background process to communicate with each other.

Main changes from 9.09.1 release:

Fixed class names in Pythin bindings (#1559)
Fixed escaping and quoting problems (#1549, #1573)
Added delete method to MidgardUser class
Fixed crash in MgdSchema extended class (#1574)
Added metadata support to MidgardView derived classes.

New functionalities in 9.09 releases:

Database views
MgdSchema classes are extendable or might be duplicated
New authentication system with stack support and multiple authentication methods per user
Optional metadata for MgdSchema classes
User defined, reflectable fields in MgdSchema
Database transactions

Main changes from Midgard 9.03.0:

Removed sitegroups and multilang (#1340)
New midgard_storage class for storage management (#1136)
Fully functional D-Bus support (#986)

Midgard2

Midgard2 is a content repository. It provides an object-oriented and replicated environment for building data-intensive applications. This provides several advantages

Common rules for data access mean that multiple applications can work with same content without breaking consistency of the data
Signals about changes let applications know when another application using the repository modifies something, enabling collaborative data management between apps
Objects instead of SQL mean that developers can deal with data using APIs more compatible with the rest of their desktop programming environment, and without having to fear issues like SQL injection
Data model is scriptable when you use a content repository, meaning that users can easily write Python or PHP scripts to perform batch operations on their data without having to learn your storage format
Synchronization and sharing features can be implemented on the content repository level meaning that you gain these features without having to worry about them

The Midgard2 platform enables developers to define a storage structure once and use it on both web and desktop applications, with the possibility of easy data replication between the two.

Read more about Midgard's content repository approach:

New Midgard architecture

Language independence

Midgard is also language independent and due to its powerful architecture has proven as stable, secure and flexible solution implemented in various environments:

PHP5 extension for web application and CMS development
Python module for desktop application and background process development
Objective-C package for Mac OS X and GNUstep developers

Database independence

MySQL
Postgres
SQLite
Microsoft SQL Server
Oracle
DB2

Built-in replication and metadata

All Midgard objects are automatically equipped with a consistent set of metadata properties that can be used for access control and workflow.

Planned for next Midgard2 releases

Midgard MVC, an elegant PHP MVC framework written for Midgard2
New installer for database and web server deployment
Midgard2 Runtime for integrating Midgard web applications to the desktop

Midgard resources

User and developers support:

Users' forum
Developers' forum
IRC: #midgard on irc.freenode.net
#midgard on Qaiku
MidgardProject on Twitter

About Midgard

Midgard2 is free software available under the GNU LGPL license.

http://www.midgard2.org

Contacts

Piotr Pokora, Midgard release manager piotrek.pokora(at)gmail.com

Henri Bergius, Midgard spokesman henri.bergius(at)iki.fi

The Midgard Project http://www.midgard-project.org

Ragnaroek 8.09.7 released

piotrek.pokora@gmail.com (Piotr Pokora) — Wed, 06 Jan 2010 13:30:36 +0000

Lodz, January 6th 2010 -- The Midgard Project has released the seventh maintenance release of Midgard 8.09 Ragnaroek LTS. Ragnaroek LTS is a Long Term Support version of the free software content management framework.

Stable 8.09.7 release is recommended for all users of Midgard.

Main changes from 8.09.6:

Fixed crashes in content replication
Fixed deleting Multilang objects (#1522)
Fixed installer crashes (#1421)
Admin and user UI fixes (#1141, #1415, #1447)
Improved page symlinks feature (#1548)

More than 70 feature requests or bugs have been handled in this release. See the Midgard issue tracker for a full list.

This release requires database update to be done by datagard.

Planned for next maintenance release:

More performance tuning
Unit tests for midgard-php and MidCOM DBA layers
New Midgard visual guidelines deployed more widely
Filesync git integration for collaborative site development

See the full list.

Source downloads

http://www.midgard-project.org/download/

Binary packages

http://download.opensuse.org/repositories/home:/midgardproject:/ragnaroek/

Getting started

http://www.midgard-project.org/documentation/getting-started/

Issue tracker

http://trac.midgard-project.org/roadmap

More information

Piotr Pokora, Midgard release manager piotrek.pokora(at)gmail.com

Henri Bergius, Midgard bug master henri.bergius(at)iki.fi

The Midgard Project http://www.midgard-project.org/

Midgard2 9.09.1 "Mjolnir" released

piotrek.pokora@gmail.com (Piotr Pokora) — Wed, 23 Dec 2009 18:07:20 +0000

Lodz, December 23rd 2009 -- The Midgard Project has released maintenance release of Midgard2 9.09 "Mjolnir" - second release of the new generation of the Midgard content repository.

About 9.09 releases

Main changes from 9.09.0 release:

New connection routines (#1475)
New MidgardQueryBuilder signals (#1486, #1487)
Configuration supports remote host's port (#1248)
MgdSchema files compatibility fix (#1503)
Storage related fixes (#1533, #1543)
Fixed crashes when running Midgard with Apache (#1520)
Fixed D-Bus path issue (#1552)

New functionalities in 9.09 releases:

Database views
MgdSchema classes are extendable or might be duplicated
New authentication system with stack support and multiple authentication methods per user
Optional metadata for MgdSchema classes
User defined, reflectable fields in MgdSchema
Database transactions

Main changes from Midgard 9.03.0:

Removed sitegroups and multilang (#1340)
New midgard_storage class for storage management (#1136)
Fully functional D-Bus support (#986)

Midgard2

Midgard2 is a content repository. It provides an object-oriented and replicated environment for building data-intensive applications. This provides several advantages

Common rules for data access mean that multiple applications can work with same content without breaking consistency of the data
Signals about changes let applications know when another application using the repository modifies something, enabling collaborative data management between apps
Objects instead of SQL mean that developers can deal with data using APIs more compatible with the rest of their desktop programming environment, and without having to fear issues like SQL injection
Data model is scriptable when you use a content repository, meaning that users can easily write Python or PHP scripts to perform batch operations on their data without having to learn your storage format
Synchronization and sharing features can be implemented on the content repository level meaning that you gain these features without having to worry about them

The Midgard2 platform enables developers to define a storage structure once and use it on both web and desktop applications, with the possibility of easy data replication between the two.

Read more about Midgard's content repository approach:

* http://bergie.iki.fi/blog/why_you_should_use_a_content_repository_for_your_application/ * http://bergie.iki.fi/blog/midgard2_at_fscons-your_data-everywhere/ * http://bergie.iki.fi/blog/midgard_and_jcr-a_look_at_two_content_repositories/ * http://teroheikkinen.iki.fi/blog/midgard_workshop_at_fscons/

New Midgard architecture

Language independence

Midgard is also language independent and due to its powerful architecture has proven as stable, secure and flexible solution implemented in various environments:

PHP5 extension for web application and CMS development
Python module for desktop application and background process development
Objective-C package for Mac OS X and GNUstep developers

Database independence

MySQL
Postgres
SQLite
Microsoft SQL Server
Oracle
DB2

Built-in replication and metadata

All Midgard objects are automatically equipped with a consistent set of metadata properties that can be used for access control and workflow.

Planned for next Midgard2 releases

Midgard MVC, an elegant PHP MVC framework written for Midgard2
New installer for database and web server deployment
Midgard2 Runtime for integrating Midgard web applications to the desktop

Midgard resources

User and developers support:

Users' forum
Developers' forum
IRC: #midgard on irc.freenode.net
#midgard on Qaiku
MidgardProject on Twitter

About Midgard

Midgard2 is free software available under the GNU LGPL license.

http://www.midgard2.org

Contacts

Piotr Pokora, Midgard release manager piotrek.pokora(at)gmail.com

Henri Bergius, Midgard spokesman henri.bergius(at)iki.fi

The Midgard Project http://www.midgard-project.org