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Alzabo-0.45
River stage one • 2 direct dependents • 3 total dependents
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Changes for version 0.45

  • Incompatibilities:
  • The 'dbm_file' parameter given when loading a syncing module that used DBM files (such as Alzabo::ObjectCache::Sync::SDBM_File) has been changed to 'sync_dbm_file', because this release includes a new cache storage module that uses DBM files as well.
  • The schema creator now requires HTTP::BrowserDetect.
  • Fix what was arguably a bug in the caching/syncing code. Previously, one process could update a row and another process could then update that same row. Now the second process will throw an exception.
  • Bug fixes:
  • Accidentally left debugging turned on in Alzabo::Exceptions.
  • The schema creator did not allow you to remove a length or precision setting for a column once it had been made.
  • Require a length for CHAR and VARCHAR columns with MySQL.
  • Add error on setting precision for any column that doesn't allow them with MySQL.
  • The interaction of caching rows and Alzabo::MethodMaker was not right. Basically, it was determined at compile time whether or not to use the cached row class but this needs to be determined at run time. This has been fixed.
  • Using the Alzabo::Runtime::Row->rows_by_foreign_key method would fail when the column in one table did not have the same name as a column in the other table. Reported by Michael Graham (along with a correct diagnosis, thanks!).
  • Don't specify a database name when creating or dropping a database. Reported and patched by Dana Powers.
  • Enhancements:
  • Rules violations error messages (bad table name, for example) in the schema creator are now handled in a much friendlier manner. Instead of the big error dump exception page it returns you to the page you submitted from with an error message.
  • Add Alzabo::Create::Column->alter method which allows you to change the column type, length, and precision all at once. This is necessary because some of the column type validation code will insist that a column have a length setting. If you try to change them in two separate operations it will throw an exception.
  • Add Alzabo::ObjectCache::Store::Null - This allows you to use any multi-process syncing module without using up the memory that Alzabo::ObjectCache::Store::Memory uses.
  • Add Alzabo::ObjectCache::Store::BerkeleyDB - I'm not sure if storing in a db file is really a performance win (vs. null storage) because of the work needed to freeze & thaw the row objects. Benchmarks are needed.
  • Add support for fulltext indexes (MySQL).
  • Don't show fulltext or column prefix options when creating indexes for databases that don't support these features.
  • Use cardinality & dependency language for relations.
  • Add some style to the schema creator (via stylesheets). It looks a little better now.

Documentation

Alzabo::FAQ
Frequently Asked Questions
Alzabo::QuickRef
A quick reference to methods in the Alzabo classes

Modules

Alzabo
A data modelling tool and RDBMS-OO mapper
Alzabo::ChangeTracker
Saves a set of changes as callbacks that can be backed out if needed
Alzabo::Column
Column objects
Alzabo::ColumnDefinition
Holds the type attribute for a column
Alzabo::Create
Loads all Alzabo::Create::* classes
Alzabo::Create::Column
Column objects for use in schema creation
Alzabo::Create::ColumnDefinition
Column definition object for schema creation
Alzabo::Create::ForeignKey
Foreign key objects for schema creation.
Alzabo::Create::Index
Index objects for schema creation
Alzabo::Create::Schema
Schema objects for schema creation
Alzabo::Create::Table
Table objects for schema creation
Alzabo::Driver
Alzabo base class for RDBMS drivers
Alzabo::Driver::MySQL
MySQL specific Alzabo driver subclass
Alzabo::Driver::PostgreSQL
PostgreSQL specific Alzabo driver subclass
Alzabo::Exceptions
Creates all exception subclasses used in Alzabo.
Alzabo::ForeignKey
Foreign key (relation) objects
Alzabo::Index
Index objects
Alzabo::MethodMaker
Auto-generate useful methods based on an existing schema
Alzabo::ObjectCache
A simple in-memory cache for row objects.
Alzabo::ObjectCache::Store::Memory
Cache objects in memory
Alzabo::ObjectCache::Sync
Base class for syncing classes
Alzabo::ObjectCache::Sync::BerkeleyDB
Uses a DBM file to sync object caches
Alzabo::ObjectCache::Sync::DBM
Base class for syncing modules that use DBM files
Alzabo::ObjectCache::Sync::DB_File
Uses a Berkeley DB file to sync object caches
Alzabo::ObjectCache::Sync::IPC
Uses a IPC file to sync object caches
Alzabo::ObjectCache::Sync::Null
No inter-process cache syncing
Alzabo::ObjectCache::Sync::SDBM_File
Uses an SDBM file to sync object caches
Alzabo::RDBMSRules
Base class for Alzabo RDBMS rulesets
Alzabo::RDBMSRules::MySQL
MySQL specific database rules.
Alzabo::RDBMSRules::PostgreSQL
PostgreSQL specific database rules
Alzabo::Runtime
Loads all Alzabo::Runtime::* classes
Alzabo::Runtime::CachedRow
Cached row objects
Alzabo::Runtime::Column
Column objects
Alzabo::Runtime::ColumnDefinition
Column definition objects
Alzabo::Runtime::Cursor
Base class for Alzabo cursors
Alzabo::Runtime::ForeignKey
Foreign key objects
Alzabo::Runtime::Index
Index objects
Alzabo::Runtime::JoinCursor
Cursor that returns arrays of Alzabo::Runtime::Row objects
Alzabo::Runtime::Row
Row objects
Alzabo::Runtime::RowCursor
Cursor that returns Alzabo::Runtime::Row objects
Alzabo::Runtime::Schema
Schema objects
Alzabo::Runtime::Table
Table objects
Alzabo::SQLMaker
Alzabo base class for RDBMS drivers
Alzabo::SQLMaker::MySQL
Alzabo SQL making class for MySQL
Alzabo::SQLMaker::PostgreSQL
Alzabo SQL making class for PostgreSQL
Alzabo::Schema
Schema objects
Alzabo::Table
Table objects
Alzabo::Util
Utility functions for Alzabo
Alzabo::Config
Alzabo configuration information

Provides

Alzabo::DriverStatement
in lib/Alzabo/Driver.pm
Alzabo::Exception::Driver
in lib/Alzabo/Exceptions.pm

Examples

Other files