drakx - Mageia Installer and base platform for many utilities

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author	Christophe Berthelé <berthy@mandriva.org>	2009-02-14 17:12:30 +0000
committer	Christophe Berthelé <berthy@mandriva.org>	2009-02-14 17:12:30 +0000
commit	8744962ed6f949b316cf8a4d9cb7c5d300c17994 (patch)
tree	819bee180e43866fe9a17e30a831a074b2f408e1
parent	2b7f531e8d6b87d39f484cbc2f25fee6ab4505e6 (diff)
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Update French translation

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perl-install/standalone/po/fr.po

151

1 files changed, 12 insertions, 139 deletions

# -*- Mode: perl; indent-tabs-mode: nil -*- # # The contents of this file are subject to the Mozilla Public # License Version 1.1 (the "License"); you may not use this file # except in compliance with the License. You may obtain a copy of # the License at http://www.mozilla.org/MPL/ # # Software distributed under the License is distributed on an "AS # IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or # implied. See the License for the specific language governing # rights and limitations under the License. # # The Original Code is the Bugzilla Bug Tracking System. # # The Initial Developer of the Original Code is Netscape Communications # Corporation. Portions created by Netscape are # Copyright (C) 1998 Netscape Communications Corporation. All # Rights Reserved. # # Contributor(s): Andrew Dunstan <andrew@dunslane.net>, # Edward J. Sabol <edwardjsabol@iname.com> # Max Kanat-Alexander <mkanat@bugzilla.org> # Lance Larsh <lance.larsh@oracle.com> package Bugzilla::DB::Schema; ########################################################################### # # Purpose: Object-oriented, DBMS-independent database schema for Bugzilla # # This is the base class implementing common methods and abstract schema. # ########################################################################### use strict; use Bugzilla::Error; use Bugzilla::Util; use Storable qw(dclone freeze thaw); =head1 NAME Bugzilla::DB::Schema - Abstract database schema for Bugzilla =head1 SYNOPSIS # Obtain MySQL database schema. # Do not do this. Use Bugzilla::DB instead. use Bugzilla::DB::Schema; my $mysql_schema = new Bugzilla::DB::Schema('Mysql'); # Recommended way to obtain database schema. use Bugzilla::DB; my $dbh = Bugzilla->dbh; my $schema = $dbh->_bz_schema(); # Get the list of tables in the Bugzilla database. my @tables = $schema->get_table_list(); # Get the SQL statements need to create the bugs table. my @statements = $schema->get_table_ddl('bugs'); # Get the database-specific SQL data type used to implement # the abstract data type INT1. my $db_specific_type = $schema->sql_type('INT1'); =head1 DESCRIPTION This module implements an object-oriented, abstract database schema. It should be considered package-private to the Bugzilla::DB module. That means that CGI scripts should never call any function in this module directly, but should instead rely on methods provided by Bugzilla::DB. =cut #-------------------------------------------------------------------------- # Define the Bugzilla abstract database schema and version as constants. =head1 CONSTANTS =over 4 =item C<SCHEMA_VERSION> The 'version' of the internal schema structure. This version number is incremented every time the the fundamental structure of Schema internals changes. This is NOT changed every time a table or a column is added. This number is incremented only if the internal structures of this Schema would be incompatible with the internal structures of a previous Schema version. In general, unless you are messing around with serialization and deserialization of the schema, you don't need to worry about this constant. =begin private An example of the use of the version number: Today, we store all individual columns like this: column_name => { TYPE => 'SOMETYPE', NOTNULL => 1 } Imagine that someday we decide that NOTNULL => 1 is bad, and we want to change it so that the schema instead uses NULL => 0. But we have a bunch of Bugzilla installations around the world with a serialized schema that has NOTNULL in it! When we deserialize that structure, it just WILL NOT WORK properly inside of our new Schema object. So, immediately after deserializing, we need to go through the hash and change all NOTNULLs to NULLs and so on. We know that we need to do that on deserializing because we know that version 1.00 used NOTNULL. Having made the change to NULL, we would now be version 1.01. =end private =item C<ABSTRACT_SCHEMA> The abstract database schema structure consists of a hash reference in which each key is the name of a table in the Bugzilla database. The value for each key is a hash reference containing the keys C<FIELDS> and C<INDEXES> which in turn point to array references containing information on the table's fields and indexes. A field hash reference should must contain the key C<TYPE>. Optional field keys include C<PRIMARYKEY>, C<NOTNULL>, and C<DEFAULT>. The C<INDEXES> array reference contains index names and information regarding the index. If the index name points to an array reference, then the index is a regular index and the array contains the indexed columns. If the index name points to a hash reference, then the hash must contain the key C<FIELDS>. It may also contain the key C<TYPE>, which can be used to specify the type of index such as UNIQUE or FULLTEXT. =back =cut use constant SCHEMA_VERSION => '1.00'; use constant ABSTRACT_SCHEMA => { # BUG-RELATED TABLES # ------------------ # General Bug Information # ----------------------- bugs => { FIELDS => [ bug_id => {TYPE => 'MEDIUMSERIAL', NOTNULL => 1, PRIMARYKEY => 1}, assigned_to => {TYPE => 'INT3', NOTNULL => 1}, bug_file_loc => {TYPE => 'TEXT'}, bug_severity => {TYPE => 'varchar(64)', NOTNULL => 1}, bug_status => {TYPE => 'varchar(64)', NOTNULL => 1}, creation_ts => {TYPE => 'DATETIME'}, delta_ts => {TYPE => 'DATETIME', NOTNULL => 1}, short_desc => {TYPE => 'MEDIUMTEXT', NOTNULL => 1}, op_sys => {TYPE => 'varchar(64)', NOTNULL => 1}, priority => {TYPE => 'varchar(64)', NOTNULL => 1}, product_id => {TYPE => 'INT2', NOTNULL => 1}, rep_platform => {TYPE => 'varchar(64)', NOTNULL => 1}, reporter => {TYPE => 'INT3', NOTNULL => 1}, version => {TYPE => 'varchar(64)', NOTNULL => 1}, component_id => {TYPE => 'INT2', NOTNULL => 1}, resolution => {TYPE => 'varchar(64)', NOTNULL => 1, DEFAULT => "''"}, target_milestone => {TYPE => 'varchar(20)', NOTNULL => 1, DEFAULT => "'---'"}, qa_contact => {TYPE => 'INT3'}, status_whiteboard => {TYPE => 'MEDIUMTEXT', NOTNULL => 1, DEFAULT => "''"}, votes => {TYPE => 'INT3', NOTNULL => 1, DEFAULT => '0'}, # Note: keywords field is only a cache; the real data # comes from the keywords table keywords => {TYPE => 'MEDIUMTEXT', NOTNULL => 1, DEFAULT => "''"}, lastdiffed => {TYPE => 'DATETIME'}, everconfirmed => {TYPE => 'BOOLEAN', NOTNULL => 1}, reporter_accessible => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'TRUE'}, cclist_accessible => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'TRUE'}, estimated_time => {TYPE => 'decimal(5,2)', NOTNULL => 1, DEFAULT => '0'}, remaining_time => {TYPE => 'decimal(5,2)', NOTNULL => 1, DEFAULT => '0'}, deadline => {TYPE => 'DATETIME'}, alias => {TYPE => 'varchar(20)'}, ], INDEXES => [ bugs_alias_idx => {FIELDS => ['alias'], TYPE => 'UNIQUE'}, bugs_assigned_to_idx => ['assigned_to'], bugs_creation_ts_idx => ['creation_ts'], bugs_delta_ts_idx => ['delta_ts'], bugs_bug_severity_idx => ['bug_severity'], bugs_bug_status_idx => ['bug_status'], bugs_op_sys_idx => ['op_sys'], bugs_priority_idx => ['priority'], bugs_product_id_idx => ['product_id'], bugs_reporter_idx => ['reporter'], bugs_version_idx => ['version'], bugs_component_id_idx => ['component_id'], bugs_resolution_idx => ['resolution'], bugs_target_milestone_idx => ['target_milestone'], bugs_qa_contact_idx => ['qa_contact'], bugs_votes_idx => ['votes'], bugs_short_desc_idx => {FIELDS => ['short_desc'], TYPE => 'FULLTEXT'}, ], }, bugs_activity => { FIELDS => [ bug_id => {TYPE => 'INT3', NOTNULL => 1}, attach_id => {TYPE => 'INT3'}, who => {TYPE => 'INT3', NOTNULL => 1}, bug_when => {TYPE => 'DATETIME', NOTNULL => 1}, fieldid => {TYPE => 'INT3', NOTNULL => 1}, added => {TYPE => 'TINYTEXT'}, removed => {TYPE => 'TINYTEXT'}, ], INDEXES => [ bugs_activity_bug_id_idx => ['bug_id'], bugs_activity_who_idx => ['who'], bugs_activity_bug_when_idx => ['bug_when'], bugs_activity_fieldid_idx => ['fieldid'], ], }, cc => { FIELDS => [ bug_id => {TYPE => 'INT3', NOTNULL => 1}, who => {TYPE => 'INT3', NOTNULL => 1}, ], INDEXES => [ cc_bug_id_idx => {FIELDS => [qw(bug_id who)], TYPE => 'UNIQUE'}, cc_who_idx => ['who'], ], }, longdescs => { FIELDS => [ bug_id => {TYPE => 'INT3', NOTNULL => 1}, who => {TYPE => 'INT3', NOTNULL => 1}, bug_when => {TYPE => 'DATETIME', NOTNULL => 1}, work_time => {TYPE => 'decimal(5,2)', NOTNULL => 1, DEFAULT => '0'}, thetext => {TYPE => 'MEDIUMTEXT'}, isprivate => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'FALSE'}, already_wrapped => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'FALSE'}, ], INDEXES => [ longdescs_bug_id_idx => ['bug_id'], longdescs_who_idx => ['who'], longdescs_bug_when_idx => ['bug_when'], longdescs_thetext_idx => {FIELDS => ['thetext'], TYPE => 'FULLTEXT'}, ], }, dependencies => { FIELDS => [ blocked => {TYPE => 'INT3', NOTNULL => 1}, dependson => {TYPE => 'INT3', NOTNULL => 1}, ], INDEXES => [ dependencies_blocked_idx => ['blocked'], dependencies_dependson_idx => ['dependson'], ], }, votes => { FIELDS => [ who => {TYPE => 'INT3', NOTNULL => 1}, bug_id => {TYPE => 'INT3', NOTNULL => 1}, vote_count => {TYPE => 'INT2', NOTNULL => 1}, ], INDEXES => [ votes_who_idx => ['who'], votes_bug_id_idx => ['bug_id'], ], }, attachments => { FIELDS => [ attach_id => {TYPE => 'MEDIUMSERIAL', NOTNULL => 1, PRIMARYKEY => 1}, bug_id => {TYPE => 'INT3', NOTNULL => 1}, creation_ts => {TYPE => 'DATETIME', NOTNULL => 1}, description => {TYPE => 'MEDIUMTEXT', NOTNULL => 1}, mimetype => {TYPE => 'MEDIUMTEXT', NOTNULL => 1}, ispatch => {TYPE => 'BOOLEAN'}, filename => {TYPE => 'varchar(100)', NOTNULL => 1}, submitter_id => {TYPE => 'INT3', NOTNULL => 1}, isobsolete => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'FALSE'}, isprivate => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'FALSE'}, ], INDEXES => [ attachments_bug_id_idx => ['bug_id'], attachments_creation_ts_idx => ['creation_ts'], attachments_submitter_id_idx => ['submitter_id', 'bug_id'], ], }, attach_data => { FIELDS => [ id => {TYPE => 'INT3', NOTNULL => 1, PRIMARYKEY => 1}, thedata => {TYPE => 'LONGBLOB', NOTNULL => 1}, ], }, duplicates => { FIELDS => [ dupe_of => {TYPE => 'INT3', NOTNULL => 1}, dupe => {TYPE => 'INT3', NOTNULL => 1, PRIMARYKEY => 1}, ], }, # Keywords # -------- keyworddefs => { FIELDS => [ id => {TYPE => 'INT2', NOTNULL => 1, PRIMARYKEY => 1}, name => {TYPE => 'varchar(64)', NOTNULL => 1}, description => {TYPE => 'MEDIUMTEXT'}, ], INDEXES => [ keyworddefs_name_idx => {FIELDS => ['name'], TYPE => 'UNIQUE'}, ], }, keywords => { FIELDS => [ bug_id => {TYPE => 'INT3', NOTNULL => 1}, keywordid => {TYPE => 'INT2', NOTNULL => 1}, ], INDEXES => [ keywords_bug_id_idx => {FIELDS => [qw(bug_id keywordid)], TYPE => 'UNIQUE'}, keywords_keywordid_idx => ['keywordid'], ], }, # Flags # ----- # "flags" stores one record for each flag on each bug/attachment. flags => { FIELDS => [ id => {TYPE => 'INT3', NOTNULL => 1, PRIMARYKEY => 1}, type_id => {TYPE => 'INT2', NOTNULL => 1}, status => {TYPE => 'char(1)', NOTNULL => 1}, bug_id => {TYPE => 'INT3', NOTNULL => 1}, attach_id => {TYPE => 'INT3'}, creation_date => {TYPE => 'DATETIME', NOTNULL => 1}, modification_date => {TYPE => 'DATETIME'}, setter_id => {TYPE => 'INT3'}, requestee_id => {TYPE => 'INT3'}, is_active => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'TRUE'}, ], INDEXES => [ flags_bug_id_idx => [qw(bug_id attach_id)], flags_setter_id_idx => ['setter_id'], flags_requestee_id_idx => ['requestee_id'], flags_type_id_idx => ['type_id'], ], }, # "flagtypes" defines the types of flags that can be set. flagtypes => { FIELDS => [ id => {TYPE => 'INT2', NOTNULL => 1, PRIMARYKEY => 1}, name => {TYPE => 'varchar(50)', NOTNULL => 1}, description => {TYPE => 'TEXT'}, cc_list => {TYPE => 'varchar(200)'}, target_type => {TYPE => 'char(1)', NOTNULL => 1, DEFAULT => "'b'"}, is_active => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'TRUE'}, is_requestable => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'FALSE'}, is_requesteeble => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'FALSE'}, is_multiplicable => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'FALSE'}, sortkey => {TYPE => 'INT2', NOTNULL => 1, DEFAULT => '0'}, grant_group_id => {TYPE => 'INT3'}, request_group_id => {TYPE => 'INT3'}, ], }, # "flaginclusions" and "flagexclusions" specify the products/components # a bug/attachment must belong to in order for flags of a given type # to be set for them. flaginclusions => { FIELDS => [ type_id => {TYPE => 'INT2', NOTNULL => 1}, product_id => {TYPE => 'INT2'}, component_id => {TYPE => 'INT2'}, ], INDEXES => [ flaginclusions_type_id_idx => [qw(type_id product_id component_id)], ], }, flagexclusions => { FIELDS => [ type_id => {TYPE => 'INT2', NOTNULL => 1}, product_id => {TYPE => 'INT2'}, component_id => {TYPE => 'INT2'}, ], INDEXES => [ flagexclusions_type_id_idx => [qw(type_id product_id component_id)], ], }, # General Field Information # ------------------------- fielddefs => { FIELDS => [ fieldid => {TYPE => 'MEDIUMSERIAL', NOTNULL => 1, PRIMARYKEY => 1}, name => {TYPE => 'varchar(64)', NOTNULL => 1}, description => {TYPE => 'MEDIUMTEXT', NOTNULL => 1}, mailhead => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'FALSE'}, sortkey => {TYPE => 'INT2', NOTNULL => 1}, obsolete => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'FALSE'}, ], INDEXES => [ fielddefs_name_idx => {FIELDS => ['name'], TYPE => 'UNIQUE'}, fielddefs_sortkey_idx => ['sortkey'], ], }, # Per-product Field Values # ------------------------ versions => { FIELDS => [ value => {TYPE => 'varchar(64)', NOTNULL => 1}, product_id => {TYPE => 'INT2', NOTNULL => 1}, ], INDEXES => [ versions_product_id_idx => {FIELDS => [qw(product_id value)], TYPE => 'UNIQUE'}, ], }, milestones => { FIELDS => [ product_id => {TYPE => 'INT2', NOTNULL => 1}, value => {TYPE => 'varchar(20)', NOTNULL => 1}, sortkey => {TYPE => 'INT2', NOTNULL => 1, DEFAULT => 0}, ], INDEXES => [ milestones_product_id_idx => {FIELDS => [qw(product_id value)], TYPE => 'UNIQUE'}, ], }, # Global Field Values # ------------------- bug_status => { FIELDS => [ id => {TYPE => 'SMALLSERIAL', NOTNULL => 1, PRIMARYKEY => 1}, value => {TYPE => 'varchar(64)', NOTNULL => 1}, sortkey => {TYPE => 'INT2', NOTNULL => 1, DEFAULT => 0}, isactive => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'TRUE'}, ], INDEXES => [ bug_status_value_idx => {FIELDS => ['value'], TYPE => 'UNIQUE'}, bug_status_sortkey_idx => ['sortkey', 'value'], ], }, resolution => { FIELDS => [ id => {TYPE => 'SMALLSERIAL', NOTNULL => 1, PRIMARYKEY => 1}, value => {TYPE => 'varchar(64)', NOTNULL => 1}, sortkey => {TYPE => 'INT2', NOTNULL => 1, DEFAULT => 0}, isactive => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'TRUE'}, ], INDEXES => [ resolution_value_idx => {FIELDS => ['value'], TYPE => 'UNIQUE'}, resolution_sortkey_idx => ['sortkey', 'value'], ], }, bug_severity => { FIELDS => [ id => {TYPE => 'SMALLSERIAL', NOTNULL => 1, PRIMARYKEY => 1}, value => {TYPE => 'varchar(64)', NOTNULL => 1}, sortkey => {TYPE => 'INT2', NOTNULL => 1, DEFAULT => 0}, isactive => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'TRUE'}, ], INDEXES => [ bug_severity_value_idx => {FIELDS => ['value'], TYPE => 'UNIQUE'}, bug_severity_sortkey_idx => ['sortkey', 'value'], ], }, priority => { FIELDS => [ id => {TYPE => 'SMALLSERIAL', NOTNULL => 1, PRIMARYKEY => 1}, value => {TYPE => 'varchar(64)', NOTNULL => 1}, sortkey => {TYPE => 'INT2', NOTNULL => 1, DEFAULT => 0}, isactive => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'TRUE'}, ], INDEXES => [ priority_value_idx => {FIELDS => ['value'], TYPE => 'UNIQUE'}, priority_sortkey_idx => ['sortkey', 'value'], ], }, rep_platform => { FIELDS => [ id => {TYPE => 'SMALLSERIAL', NOTNULL => 1, PRIMARYKEY => 1}, value => {TYPE => 'varchar(64)', NOTNULL => 1}, sortkey => {TYPE => 'INT2', NOTNULL => 1, DEFAULT => 0}, isactive => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'TRUE'}, ], INDEXES => [ rep_platform_value_idx => {FIELDS => ['value'], TYPE => 'UNIQUE'}, rep_platform_sortkey_idx => ['sortkey', 'value'], ], }, op_sys => { FIELDS => [ id => {TYPE => 'SMALLSERIAL', NOTNULL => 1, PRIMARYKEY => 1}, value => {TYPE => 'varchar(64)', NOTNULL => 1}, sortkey => {TYPE => 'INT2', NOTNULL => 1, DEFAULT => 0}, isactive => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'TRUE'}, ], INDEXES => [ op_sys_value_idx => {FIELDS => ['value'], TYPE => 'UNIQUE'}, op_sys_sortkey_idx => ['sortkey', 'value'], ], }, # USER INFO # --------- # General User Information # ------------------------ profiles => { FIELDS => [ userid => {TYPE => 'MEDIUMSERIAL', NOTNULL => 1, PRIMARYKEY => 1}, login_name => {TYPE => 'varchar(255)', NOTNULL => 1}, cryptpassword => {TYPE => 'varchar(128)'}, realname => {TYPE => 'varchar(255)'}, disabledtext => {TYPE => 'MEDIUMTEXT', NOTNULL => 1}, mybugslink => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'TRUE'}, refreshed_when => {TYPE => 'DATETIME', NOTNULL => 1}, extern_id => {TYPE => 'varchar(64)'}, ], INDEXES => [ profiles_login_name_idx => {FIELDS => ['login_name'], TYPE => 'UNIQUE'}, ], }, profiles_activity => { FIELDS => [ userid => {TYPE => 'INT3', NOTNULL => 1}, who => {TYPE => 'INT3', NOTNULL => 1}, profiles_when => {TYPE => 'DATETIME', NOTNULL => 1}, fieldid => {TYPE => 'INT3', NOTNULL => 1}, oldvalue => {TYPE => 'TINYTEXT'}, newvalue => {TYPE => 'TINYTEXT'}, ], INDEXES => [ profiles_activity_userid_idx => ['userid'], profiles_activity_profiles_when_idx => ['profiles_when'], profiles_activity_fieldid_idx => ['fieldid'], ], }, email_setting => { FIELDS => [ user_id => {TYPE => 'INT3', NOTNULL => 1}, relationship => {TYPE => 'INT1', NOTNULL => 1}, event => {TYPE => 'INT1', NOTNULL => 1}, ], INDEXES => [ email_setting_user_id_idx => {FIELDS => [qw(user_id relationship event)], TYPE => 'UNIQUE'}, ], }, watch => { FIELDS => [ watcher => {TYPE => 'INT3', NOTNULL => 1}, watched => {TYPE => 'INT3', NOTNULL => 1}, ], INDEXES => [ watch_watcher_idx => {FIELDS => [qw(watcher watched)], TYPE => 'UNIQUE'}, watch_watched_idx => ['watched'], ], }, namedqueries => { FIELDS => [ userid => {TYPE => 'INT3', NOTNULL => 1}, name => {TYPE => 'varchar(64)', NOTNULL => 1}, linkinfooter => {TYPE => 'BOOLEAN', NOTNULL => 1}, query => {TYPE => 'MEDIUMTEXT', NOTNULL => 1}, ], INDEXES => [ namedqueries_userid_idx => {FIELDS => [qw(userid name)], TYPE => 'UNIQUE'}, ], }, # Authentication # -------------- logincookies => { FIELDS => [ cookie => {TYPE => 'MEDIUMSERIAL', NOTNULL => 1, PRIMARYKEY => 1}, userid => {TYPE => 'INT3', NOTNULL => 1}, ipaddr => {TYPE => 'varchar(40)', NOTNULL => 1}, lastused => {TYPE => 'DATETIME', NOTNULL => 1}, ], INDEXES => [ logincookies_lastused_idx => ['lastused'], ], }, # "tokens" stores the tokens users receive when a password or email # change is requested. Tokens provide an extra measure of security # for these changes. tokens => { FIELDS => [ userid => {TYPE => 'INT3', NOTNULL => 1} , issuedate => {TYPE => 'DATETIME', NOTNULL => 1} , token => {TYPE => 'varchar(16)', NOTNULL => 1, PRIMARYKEY => 1}, tokentype => {TYPE => 'varchar(8)', NOTNULL => 1} , eventdata => {TYPE => 'TINYTEXT'}, ], INDEXES => [ tokens_userid_idx => ['userid'], ], }, # GROUPS # ------ groups => { FIELDS => [ id => {TYPE => 'MEDIUMSERIAL', NOTNULL => 1, PRIMARYKEY => 1}, name => {TYPE => 'varchar(255)', NOTNULL => 1}, description => {TYPE => 'TEXT', NOTNULL => 1}, isbuggroup => {TYPE => 'BOOLEAN', NOTNULL => 1}, last_changed => {TYPE => 'DATETIME', NOTNULL => 1}, userregexp => {TYPE => 'TINYTEXT', NOTNULL => 1}, isactive => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'TRUE'}, ], INDEXES => [ groups_name_idx => {FIELDS => ['name'], TYPE => 'UNIQUE'}, ], }, group_control_map => { FIELDS => [ group_id => {TYPE => 'INT3', NOTNULL => 1}, product_id => {TYPE => 'INT3', NOTNULL => 1}, entry => {TYPE => 'BOOLEAN', NOTNULL => 1}, membercontrol => {TYPE => 'BOOLEAN', NOTNULL => 1}, othercontrol => {TYPE => 'BOOLEAN', NOTNULL => 1}, canedit => {TYPE => 'BOOLEAN', NOTNULL => 1}, ], INDEXES => [ group_control_map_product_id_idx => {FIELDS => [qw(product_id group_id)], TYPE => 'UNIQUE'}, group_control_map_group_id_idx => ['group_id'], ], }, # "user_group_map" determines the groups that a user belongs to # directly or due to regexp and which groups can be blessed by a user. # # grant_type: # if GRANT_DIRECT - record was explicitly granted # if GRANT_DERIVED - record was derived from expanding a group hierarchy # if GRANT_REGEXP - record was created by evaluating a regexp user_group_map => { FIELDS => [ user_id => {TYPE => 'INT3', NOTNULL => 1}, group_id => {TYPE => 'INT3', NOTNULL => 1}, isbless => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'FALSE'}, grant_type => {TYPE => 'INT1', NOTNULL => 1, DEFAULT => '0'}, ], INDEXES => [ user_group_map_user_id_idx => {FIELDS => [qw(user_id group_id grant_type isbless)], TYPE => 'UNIQUE'}, ], }, # This table determines which groups are made a member of another # group, given the ability to bless another group, or given # visibility to another groups existence and membership # grant_type: # if GROUP_MEMBERSHIP - member groups are made members of grantor # if GROUP_BLESS - member groups may grant membership in grantor # if GROUP_VISIBLE - member groups may see grantor group group_group_map => { FIELDS => [ member_id => {TYPE => 'INT3', NOTNULL => 1}, grantor_id => {TYPE => 'INT3', NOTNULL => 1}, grant_type => {TYPE => 'INT1', NOTNULL => 1, DEFAULT => '0'}, ], INDEXES => [ group_group_map_member_id_idx => {FIELDS => [qw(member_id grantor_id grant_type)], TYPE => 'UNIQUE'}, ], }, # This table determines which groups a user must be a member of # in order to see a bug. bug_group_map => { FIELDS => [ bug_id => {TYPE => 'INT3', NOTNULL => 1}, group_id => {TYPE => 'INT3', NOTNULL => 1}, ], INDEXES => [ bug_group_map_bug_id_idx => {FIELDS => [qw(bug_id group_id)], TYPE => 'UNIQUE'}, bug_group_map_group_id_idx => ['group_id'], ], }, category_group_map => { FIELDS => [ category_id => {TYPE => 'INT2', NOTNULL => 1}, group_id => {TYPE => 'INT3', NOTNULL => 1}, ], INDEXES => [ category_group_map_category_id_idx => {FIELDS => [qw(category_id group_id)], TYPE => 'UNIQUE'}, ], }, # PRODUCTS # -------- classifications => { FIELDS => [ id => {TYPE => 'SMALLSERIAL', NOTNULL => 1, PRIMARYKEY => 1}, name => {TYPE => 'varchar(64)', NOTNULL => 1}, description => {TYPE => 'MEDIUMTEXT'}, ], INDEXES => [ classifications_name_idx => {FIELDS => ['name'], TYPE => 'UNIQUE'}, ], }, products => { FIELDS => [ id => {TYPE => 'SMALLSERIAL', NOTNULL => 1, PRIMARYKEY => 1}, name => {TYPE => 'varchar(64)', NOTNULL => 1}, classification_id => {TYPE => 'INT2', NOTNULL => 1, DEFAULT => '1'}, description => {TYPE => 'MEDIUMTEXT'}, milestoneurl => {TYPE => 'TINYTEXT', NOTNULL => 1}, disallownew => {TYPE => 'BOOLEAN', NOTNULL => 1}, votesperuser => {TYPE => 'INT2', NOTNULL => 1}, maxvotesperbug => {TYPE => 'INT2', NOTNULL => 1, DEFAULT => '10000'}, votestoconfirm => {TYPE => 'INT2', NOTNULL => 1}, defaultmilestone => {TYPE => 'varchar(20)', NOTNULL => 1, DEFAULT => "'---'"}, ], INDEXES => [ products_name_idx => {FIELDS => ['name'], TYPE => 'UNIQUE'}, ], }, components => { FIELDS => [ id => {TYPE => 'SMALLSERIAL', NOTNULL => 1, PRIMARYKEY => 1}, name => {TYPE => 'varchar(64)', NOTNULL => 1}, product_id => {TYPE => 'INT2', NOTNULL => 1}, initialowner => {TYPE => 'INT3', NOTNULL => 1}, initialqacontact => {TYPE => 'INT3'}, description => {TYPE => 'MEDIUMTEXT', NOTNULL => 1}, ], INDEXES => [ components_product_id_idx => {FIELDS => [qw(product_id name)], TYPE => 'UNIQUE'}, components_name_idx => ['name'], ], }, # CHARTS # ------ series => { FIELDS => [ series_id => {TYPE => 'MEDIUMSERIAL', NOTNULL => 1, PRIMARYKEY => 1}, creator => {TYPE => 'INT3', NOTNULL => 1}, category => {TYPE => 'INT2', NOTNULL => 1}, subcategory => {TYPE => 'INT2', NOTNULL => 1}, name => {TYPE => 'varchar(64)', NOTNULL => 1}, frequency => {TYPE => 'INT2', NOTNULL => 1}, last_viewed => {TYPE => 'DATETIME'}, query => {TYPE => 'MEDIUMTEXT', NOTNULL => 1}, public => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'FALSE'}, ], INDEXES => [ series_creator_idx => {FIELDS => [qw(creator category subcategory name)], TYPE => 'UNIQUE'}, ], }, series_data => { FIELDS => [ series_id => {TYPE => 'INT3', NOTNULL => 1}, series_date => {TYPE => 'DATETIME', NOTNULL => 1}, series_value => {TYPE => 'INT3', NOTNULL => 1}, ], INDEXES => [ series_data_series_id_idx => {FIELDS => [qw(series_id series_date)], TYPE => 'UNIQUE'}, ], }, series_categories => { FIELDS => [ id => {TYPE => 'SMALLSERIAL', NOTNULL => 1, PRIMARYKEY => 1}, name => {TYPE => 'varchar(64)', NOTNULL => 1}, ], INDEXES => [ series_categories_name_idx => {FIELDS => ['name'], TYPE => 'UNIQUE'}, ], }, # WHINE SYSTEM # ------------ whine_queries => { FIELDS => [ id => {TYPE => 'MEDIUMSERIAL', PRIMARYKEY => 1, NOTNULL => 1}, eventid => {TYPE => 'INT3', NOTNULL => 1}, query_name => {TYPE => 'varchar(64)', NOTNULL => 1, DEFAULT => "''"}, sortkey => {TYPE => 'INT2', NOTNULL => 1, DEFAULT => '0'}, onemailperbug => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'FALSE'}, title => {TYPE => 'varchar(128)', NOTNULL => 1, DEFAULT => "''"}, ], INDEXES => [ whine_queries_eventid_idx => ['eventid'], ], }, whine_schedules => { FIELDS => [ id => {TYPE => 'MEDIUMSERIAL', PRIMARYKEY => 1, NOTNULL => 1}, eventid => {TYPE => 'INT3', NOTNULL => 1}, run_day => {TYPE => 'varchar(32)'}, run_time => {TYPE => 'varchar(32)'}, run_next => {TYPE => 'DATETIME'}, mailto => {TYPE => 'INT3', NOTNULL => 1}, mailto_type => {TYPE => 'INT2', NOTNULL => 1, DEFAULT => '0'}, ], INDEXES => [ whine_schedules_run_next_idx => ['run_next'], whine_schedules_eventid_idx => ['eventid'], ], }, whine_events => { FIELDS => [ id => {TYPE => 'MEDIUMSERIAL', PRIMARYKEY => 1, NOTNULL => 1}, owner_userid => {TYPE => 'INT3', NOTNULL => 1}, subject => {TYPE => 'varchar(128)'}, body => {TYPE => 'MEDIUMTEXT'}, ], }, # QUIPS # ----- quips => { FIELDS => [ quipid => {TYPE => 'MEDIUMSERIAL', NOTNULL => 1, PRIMARYKEY => 1}, userid => {TYPE => 'INT3'}, quip => {TYPE => 'TEXT', NOTNULL => 1}, approved => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'TRUE'}, ], }, # SETTINGS # -------- # setting - each global setting will have exactly one entry # in this table. # setting_value - stores the list of acceptable values for each # setting, and a sort index that controls the order # in which the values are displayed. # profile_setting - If a user has chosen to use a value other than the # global default for a given setting, it will be # stored in this table. Note: even if a setting is # later changed so is_enabled = false, the stored # value will remain in case it is ever enabled again. # setting => { FIELDS => [ name => {TYPE => 'varchar(32)', NOTNULL => 1, PRIMARYKEY => 1}, default_value => {TYPE => 'varchar(32)', NOTNULL => 1}, is_enabled => {TYPE => 'BOOLEAN', NOTNULL => 1, DEFAULT => 'TRUE'}, ], }, setting_value => { FIELDS => [ name => {TYPE => 'varchar(32)', NOTNULL => 1}, value => {TYPE => 'varchar(32)', NOTNULL => 1}, sortindex => {TYPE => 'INT2', NOTNULL => 1}, ], INDEXES => [ setting_value_nv_unique_idx => {FIELDS => [qw(name value)], TYPE => 'UNIQUE'}, setting_value_ns_unique_idx => {FIELDS => [qw(name sortindex)], TYPE => 'UNIQUE'}, ], }, profile_setting => { FIELDS => [ user_id => {TYPE => 'INT3', NOTNULL => 1}, setting_name => {TYPE => 'varchar(32)', NOTNULL => 1}, setting_value => {TYPE => 'varchar(32)', NOTNULL => 1}, ], INDEXES => [ profile_setting_value_unique_idx => {FIELDS => [qw(user_id setting_name)], TYPE => 'UNIQUE'}, ], }, # SCHEMA STORAGE # -------------- bz_schema => { FIELDS => [ schema_data => {TYPE => 'LONGBLOB', NOTNULL => 1}, version => {TYPE => 'decimal(3,2)', NOTNULL => 1}, ], }, }; #-------------------------------------------------------------------------- =head1 METHODS Note: Methods which can be implemented generically for all DBs are implemented in this module. If needed, they can be overriden with DB-specific code in a subclass. Methods which are prefixed with C<_> are considered protected. Subclasses may override these methods, but other modules should not invoke these methods directly. =cut #-------------------------------------------------------------------------- sub new { =over =item C<new> Description: Public constructor method used to instantiate objects of this class. However, it also can be used as a factory method to instantiate database-specific subclasses when an optional driver argument is supplied. Parameters: $driver (optional) - Used to specify the type of database. This routine C<die>s if no subclass is found for the specified driver. $schema (optional) - A reference to a hash. Callers external to this package should never use this parameter. Returns: new instance of the Schema class or a database-specific subclass =cut my $this = shift; my $class = ref($this) || $this; my $driver = shift; if ($driver) { (my $subclass = $driver) =~ s/^(\S)/\U$1/; $class .= '::' . $subclass; eval "require $class;"; die "The $class class could not be found ($subclass " . "not supported?): $@" if ($@); } die "$class is an abstract base class. Instantiate a subclass instead." if ($class eq __PACKAGE__); my $self = {}; bless $self, $class; $self = $self->_initialize(@_); return($self); } #eosub--new #-------------------------------------------------------------------------- sub _initialize { =item C<_initialize> Description: Protected method that initializes an object after instantiation with the abstract schema. All subclasses should override this method. The typical subclass implementation should first call the C<_initialize> method of the superclass, then do any database-specific initialization (especially define the database-specific implementation of the all abstract data types), and then call the C<_adjust_schema> method. Parameters: $abstract_schema (optional) - A reference to a hash. If provided, this hash will be used as the internal representation of the abstract schema instead of our default abstract schema. This is intended for internal use only by deserialize_abstract. Returns: the instance of the Schema class =cut my $self = shift; my $abstract_schema = shift; $abstract_schema ||= ABSTRACT_SCHEMA; $self->{schema} = dclone($abstract_schema); # While ABSTRACT_SCHEMA cannot be modified, # $self->{abstract_schema} can be. So, we dclone it to prevent # anything from mucking with the constant. $self->{abstract_schema} = dclone($abstract_schema); return $self; } #eosub--_initialize #-------------------------------------------------------------------------- sub _adjust_schema { =item C<_adjust_schema> Description: Protected method that alters the abstract schema at instantiation-time to be database-specific. It is a generic enough routine that it can be defined here in the base class. It takes the abstract schema and replaces the abstract data types with database-specific data types. Parameters: none Returns: the instance of the Schema class =cut my $self = shift; # The _initialize method has already set up the db_specific hash with # the information on how to implement the abstract data types for the # instantiated DBMS-specific subclass. my $db_specific = $self->{db_specific}; # Loop over each table in the abstract database schema. foreach my $table (keys %{ $self->{schema} }) { my %fields = (@{ $self->{schema}{$table}{FIELDS} }); # Loop over the field defintions in each table. foreach my $field_def (values %fields) { # If the field type is an abstract data type defined in the # $db_specific hash, replace it with the DBMS-specific data type # that implements it. if (exists($db_specific->{$field_def->{TYPE}})) { $field_def->{TYPE} = $db_specific->{$field_def->{TYPE}}; } # Replace abstract default values (such as 'TRUE' and 'FALSE') # with their database-specific implementations. if (exists($field_def->{DEFAULT}) && exists($db_specific->{$field_def->{DEFAULT}})) { $field_def->{DEFAULT} = $db_specific->{$field_def->{DEFAULT}}; } } } return $self; } #eosub--_adjust_schema #-------------------------------------------------------------------------- sub get_type_ddl { =item C<get_type_ddl> Description: Public method to convert abstract (database-generic) field specifiers to database-specific data types suitable for use in a C<CREATE TABLE> or C<ALTER TABLE> SQL statment. If no database-specific field type has been defined for the given field type, then it will just return the same field type. Parameters: a hash or a reference to a hash of a field containing the following keys: C<TYPE> (required), C<NOTNULL> (optional), C<DEFAULT> (optional), C<PRIMARYKEY> (optional), C<REFERENCES> (optional) Returns: a DDL string suitable for describing a field in a C<CREATE TABLE> or C<ALTER TABLE> SQL statement =cut my $self = shift; my $finfo = (@_ == 1 && ref($_[0]) eq 'HASH') ? $_[0] : { @_ }; my $type = $finfo->{TYPE}; die "A valid TYPE was not specified for this column." unless ($type); my $default = $finfo->{DEFAULT}; # Replace any abstract default value (such as 'TRUE' or 'FALSE') # with its database-specific implementation. if ( defined $default && exists($self->{db_specific}->{$default}) ) { $default = $self->{db_specific}->{$default}; } my $fkref = $self->{enable_references} ? $finfo->{REFERENCES} : undef; my $type_ddl = $self->{db_specific}{$type} || $type; # DEFAULT attribute must appear before any column constraints # (e.g., NOT NULL), for Oracle $type_ddl .= " DEFAULT $default" if (defined($default)); $type_ddl .= " NOT NULL" if ($finfo->{NOTNULL}); $type_ddl .= " PRIMARY KEY" if ($finfo->{PRIMARYKEY}); $type_ddl .= "\n\t\t\t\tREFERENCES $fkref" if $fkref; return($type_ddl); } #eosub--get_type_ddl #-------------------------------------------------------------------------- sub get_column { =item C<get_column($table, $column)> Description: Public method to get the abstract definition of a column. Parameters: $table - the table name $column - a column in the table Returns: a hashref containing information about the column, including its type (C<TYPE>), whether or not it can be null (C<NOTNULL>), its default value if it has one (C<DEFAULT), etc. Returns undef if the table or column does not exist. =cut my($self, $table, $column) = @_; # Prevent a possible dereferencing of an undef hash, if the # table doesn't exist. if (exists $self->{schema}->{$table}) { my %fields = (@{ $self->{schema}{$table}{FIELDS} }); return $fields{$column}; } return undef; } #eosub--get_column sub get_table_list { =item C<get_table_list> Description: Public method for discovering what tables should exist in the Bugzilla database. Parameters: none Returns: an array of table names =cut my $self = shift; return(sort(keys %{ $self->{schema} })); } #eosub--get_table_list #-------------------------------------------------------------------------- sub get_table_columns { =item C<get_table_columns> Description: Public method for discovering what columns are in a given table in the Bugzilla database. Parameters: $table - the table name Returns: array of column names =cut my($self, $table) = @_; my @ddl = (); my $thash = $self->{schema}{$table}; die "Table $table does not exist in the database schema." unless (ref($thash)); my @columns = (); my @fields = @{ $thash->{FIELDS} }; while (@fields) { push(@columns, shift(@fields)); shift(@fields); } return @columns; } #eosub--get_table_columns #-------------------------------------------------------------------------- sub get_table_ddl { =item C<get_table_ddl> Description: Public method to generate the SQL statements needed to create the a given table and its indexes in the Bugzilla database. Subclasses may override or extend this method, if needed, but subclasses probably should override C<_get_create_table_ddl> or C<_get_create_index_ddl> instead. Parameters: $table - the table name Returns: an array of strings containing SQL statements =cut my($self, $table) = @_; my @ddl = (); die "Table $table does not exist in the database schema." unless (ref($self->{schema}{$table})); my $create_table = $self->_get_create_table_ddl($table); push(@ddl, $create_table) if $create_table; my @indexes = @{ $self->{schema}{$table}{INDEXES} || [] }; while (@indexes) { my $index_name = shift(@indexes); my $index_info = shift(@indexes); my $index_sql = $self->get_add_index_ddl($table, $index_name, $index_info); push(@ddl, $index_sql) if $index_sql; } push(@ddl, @{ $self->{schema}{$table}{DB_EXTRAS} }) if (ref($self->{schema}{$table}{DB_EXTRAS})); return @ddl; } #eosub--get_table_ddl #-------------------------------------------------------------------------- sub _get_create_table_ddl { =item C<_get_create_table_ddl> Description: Protected method to generate the "create table" SQL statement for a given table. Parameters: $table - the table name Returns: a string containing the DDL statement for the specified table =cut my($self, $table) = @_; my $thash = $self->{schema}{$table}; die "Table $table does not exist in the database schema." unless (ref($thash)); my $create_table = "CREATE TABLE $table $\n"; my @fields = @{ $thash->{FIELDS} }; while (@fields) { my $field = shift(@fields); my $finfo = shift(@fields); $create_table .= "\t$field\t" . $self->get_type_ddl($finfo); $create_table .= "," if (@fields); $create_table .= "\n"; } $create_table .= "$"; return($create_table) } #eosub--_get_create_table_ddl #-------------------------------------------------------------------------- sub _get_create_index_ddl { =item C<_get_create_index_ddl> Description: Protected method to generate a "create index" SQL statement for a given table and index. Parameters: $table_name - the name of the table $index_name - the name of the index $index_fields - a reference to an array of field names $index_type (optional) - specify type of index (e.g., UNIQUE) Returns: a string containing the DDL statement =cut my($self, $table_name, $index_name, $index_fields, $index_type) = @_; my $sql = "CREATE "; $sql .= "$index_type " if ($index_type eq 'UNIQUE'); $sql .= "INDEX $index_name ON $table_name $" . join(", ", @$index_fields) . "$"; return($sql); } #eosub--_get_create_index_ddl #-------------------------------------------------------------------------- sub get_add_column_ddl { =item C<get_add_column_ddl($table, $column, \%definition, $init_value)> Description: Generate SQL to add a column to a table. Params: $table - The table containing the column. $column - The name of the column being added. \%definition - The new definition for the column, in standard C<ABSTRACT_SCHEMA> format. $init_value - (optional) An initial value to set the column to. Should already be SQL-quoted if necessary. Returns: An array of SQL statements. =cut my ($self, $table, $column, $definition, $init_value) = @_; my @statements; push(@statements, "ALTER TABLE $table ADD COLUMN $column " . $self->get_type_ddl($definition)); # XXX - Note that although this works for MySQL, most databases will fail # before this point, if we haven't set a default. (push(@statements, "UPDATE $table SET $column = $init_value")) if defined $init_value; return (@statements); } sub get_add_index_ddl { =item C<get_add_index_ddl> Description: Gets SQL for creating an index. NOTE: Subclasses should not override this function. Instead, if they need to specify a custom CREATE INDEX statement, they should override C<_get_create_index_ddl> Params: $table - The name of the table the index will be on. $name - The name of the new index. $definition - An index definition. Either a hashref with FIELDS and TYPE or an arrayref containing a list of columns. Returns: An array of SQL statements that will create the requested index. =cut my ($self, $table, $name, $definition) = @_; my ($index_fields, $index_type); # Index defs can be arrays or hashes if (ref($definition) eq 'HASH') { $index_fields = $definition->{FIELDS}; $index_type = $definition->{TYPE}; } else { $index_fields = $definition; $index_type = ''; } return $self->_get_create_index_ddl($table, $name, $index_fields, $index_type); } sub get_alter_column_ddl { =item C<get_alter_column_ddl($table, $column, \%definition)> Description: Generate SQL to alter a column in a table. The column that you are altering must exist, and the table that it lives in must exist. Params: $table - The table containing the column. $column - The name of the column being changed. \%definition - The new definition for the column, in standard C<ABSTRACT_SCHEMA> format. $set_nulls_to - A value to set NULL values to, if your new definition is NOT NULL and contains no DEFAULT, and when there is a possibility that the column could contain NULLs. $set_nulls_to should be already SQL-quoted if necessary. Returns: An array of SQL statements. =cut my ($self, $table, $column, $new_def, $set_nulls_to) = @_; my @statements; my $old_def = $self->get_column_abstract($table, $column); my $specific = $self->{db_specific}; my $typechange = 0; # If the types have changed, we have to deal with that. if (uc(trim($old_def->{TYPE})) ne uc(trim($new_def->{TYPE}))) { $typechange = 1; my $type = $new_def->{TYPE}; $type = $specific->{$type} if exists $specific->{$type}; # Make sure we can CAST from the old type to the new without an error. push(@statements, "SELECT CAST($column AS $type) FROM $table LIMIT 1"); # Add a new temporary column of the new type push(@statements, "ALTER TABLE $table ADD COLUMN ${column}_ALTERTEMP" . " $type"); # UPDATE the temp column to have the same values as the old column push(@statements, "UPDATE $table SET ${column}_ALTERTEMP = " . " CAST($column AS $type)"); # Some databases drop a whole index when a column is dropped, # some only remove that column from an index. For consistency, # we manually drop all indexes on the column before dropping the # column. my %col_idx = $self->get_indexes_on_column_abstract($table, $column); foreach my $idx_name (keys %col_idx) { push(@statements, $self->get_drop_index_ddl($table, $idx_name)); } # DROP the old column push(@statements, "ALTER TABLE $table DROP COLUMN $column"); # And rename the temp column to be the new one. push(@statements, "ALTER TABLE $table RENAME COLUMN " . " ${column}_ALTERTEMP TO $column"); # And now, we have to regenerate any indexes that got # dropped, except for the PK index which will be handled # below. foreach my $idx_name (keys %col_idx) { push(@statements, $self->get_add_index_ddl($table, $idx_name, $col_idx{$idx_name})); } } my $default = $new_def->{DEFAULT}; my $default_old = $old_def->{DEFAULT}; # This first condition prevents "uninitialized value" errors. if (!defined $default && !defined $default_old) { # Do Nothing } # If we went from having a default to not having one elsif (!defined $default && defined $default_old) { push(@statements, "ALTER TABLE $table ALTER COLUMN $column" . " DROP DEFAULT"); } # If we went from no default to a default, or we changed the default, # or we have a default and we changed the data type of the field elsif ( (defined $default && !defined $default_old) || ($default ne $default_old) || ($typechange && defined $new_def->{DEFAULT}) ) { $default = $specific->{$default} if exists $specific->{$default}; push(@statements, "ALTER TABLE $table ALTER COLUMN $column " . " SET DEFAULT $default"); } # If we went from NULL to NOT NULL # OR if we changed the type and we are NOT NULL if ( (!$old_def->{NOTNULL} && $new_def->{NOTNULL}) || ($typechange && $new_def->{NOTNULL}) ) { my $setdefault; # Handle any fields that were NULL before, if we have a default, $setdefault = $new_def->{DEFAULT} if exists $new_def->{DEFAULT}; # But if we have a set_nulls_to, that overrides the DEFAULT # (although nobody would usually specify both a default and # a set_nulls_to.) $setdefault = $set_nulls_to if defined $set_nulls_to; if (defined $setdefault) { push(@statements, "UPDATE $table SET $column = $setdefault" . " WHERE $column IS NULL"); } push(@statements, "ALTER TABLE $table ALTER COLUMN $column" . " SET NOT NULL"); } # If we went from NOT NULL to NULL elsif ($old_def->{NOTNULL} && !$new_def->{NOTNULL}) { push(@statements, "ALTER TABLE $table ALTER COLUMN $column" . " DROP NOT NULL"); } # If we went from not being a PRIMARY KEY to being a PRIMARY KEY, # or if we changed types and we are a PK. if ( (!$old_def->{PRIMARYKEY} && $new_def->{PRIMARYKEY}) || ($typechange && $new_def->{PRIMARYKEY}) ) { push(@statements, "ALTER TABLE $table ADD PRIMARY KEY ($column)"); } # If we went from being a PK to not being a PK elsif ( $old_def->{PRIMARYKEY} && !$new_def->{PRIMARYKEY} ) { push(@statements, "ALTER TABLE $table DROP PRIMARY KEY"); } return @statements; } sub get_drop_index_ddl { =item C<get_drop_index_ddl($table, $name)> Description: Generates SQL statements to drop an index. Params: $table - The table the index is on. $name - The name of the index being dropped. Returns: An array of SQL statements. =cut my ($self, $table, $name) = @_; # Although ANSI SQL-92 doesn't specify a method of dropping an index, # many DBs support this syntax. return ("DROP INDEX $name"); } sub get_drop_column_ddl { =item C<get_drop_column_ddl($table, $column)> Description: Generate SQL to drop a column from a table. Params: $table - The table containing the column. $column - The name of the column being dropped. Returns: An array of SQL statements. =cut my ($self, $table, $column) = @_; return ("ALTER TABLE $table DROP COLUMN $column"); } =item C<get_drop_table_ddl($table)> Description: Generate SQL to drop a table from the database. Params: $table - The name of the table to drop. Returns: An array of SQL statements. =cut sub get_drop_table_ddl { my ($self, $table) = @_; return ("DROP TABLE $table"); } sub get_rename_column_ddl { =item C<get_rename_column_ddl($table, $old_name, $new_name)> Description: Generate SQL to change the name of a column in a table. NOTE: ANSI SQL contains no simple way to rename a column, so this function is ABSTRACT and must be implemented by subclasses. Params: $table - The table containing the column to be renamed. $old_name - The name of the column being renamed. $new_name - The name the column is changing to. Returns: An array of SQL statements. =cut die "ANSI SQL has no way to rename a column, and your database driver\n" . " has not implemented a method."; } =item C<delete_table($name)> Description: Deletes a table from this Schema object. Dies if you try to delete a table that doesn't exist. Params: $name - The name of the table to delete. Returns: nothing =cut sub delete_table { my ($self, $name) = @_; die "Attempted to delete nonexistent table '$name'." unless $self->get_table_abstract($name); delete $self->{abstract_schema}->{$name}; delete $self->{schema}->{$name}; } sub get_column_abstract { =item C<get_column_abstract($table, $column)> Description: A column definition from the abstract internal schema. cross-database format. Params: $table - The name of the table $column - The name of the column that you want Returns: A hash reference. For the format, see the docs for C<ABSTRACT_SCHEMA>. Returns undef if the column or table does not exist. =cut my ($self, $table, $column) = @_; # Prevent a possible dereferencing of an undef hash, if the # table doesn't exist. if ($self->get_table_abstract($table)) { my %fields = (@{ $self->{abstract_schema}{$table}{FIELDS} }); return $fields{$column}; } return undef; } =item C<get_indexes_on_column_abstract($table, $column)> Description: Gets a list of indexes that are on a given column. Params: $table - The table the column is on. $column - The name of the column. Returns: Indexes in the standard format of an INDEX entry on a table. That is, key-value pairs where the key is the index name and the value is the index definition. If there are no indexes on that column, we return undef. =cut sub get_indexes_on_column_abstract { my ($self, $table, $column) = @_; my %ret_hash; my $table_def = $self->get_table_abstract($table); if ($table_def && exists $table_def->{INDEXES}) { my %indexes = (@{ $table_def->{INDEXES} }); foreach my $index_name (keys %indexes) { my $col_list; # Get the column list, depending on whether the index # is in hashref or arrayref format. if (ref($indexes{$index_name}) eq 'HASH') { $col_list = $indexes{$index_name}->{FIELDS}; } else { $col_list = $indexes{$index_name}; } if(grep($_ eq $column, @$col_list)) { $ret_hash{$index_name} = dclone($indexes{$index_name}); } } } return %ret_hash; } sub get_index_abstract { =item C<get_index_abstract($table, $index)> Description: Returns an index definition from the internal abstract schema. Params: $table - The table the index is on. $index - The name of the index. Returns: A hash reference representing an index definition. See the C<ABSTRACT_SCHEMA> docs for details. Returns undef if the index does not exist. =cut my ($self, $table, $index) = @_; # Prevent a possible dereferencing of an undef hash, if the # table doesn't exist. my $index_table = $self->get_table_abstract($table); if ($index_table && exists $index_table->{INDEXES}) { my %indexes = (@{ $index_table->{INDEXES} }); return $indexes{$index}; } return undef; } =item C<get_table_abstract($table)> Description: Gets the abstract definition for a table in this Schema object. Params: $table - The name of the table you want a definition for. Returns: An abstract table definition, or undef if the table doesn't exist. =cut sub get_table_abstract { my ($self, $table) = @_; return $self->{abstract_schema}->{$table}; } =item C<add_table($name, \%definition)> Description: Creates a new table in this Schema object. If you do not specify a definition, we will simply create an empty table. Params: $name - The name for the new table. \%definition (optional) - An abstract definition for the new table. Returns: nothing =cut sub add_table { my ($self, $name, $definition) = @_; (die "Table already exists: $name") if exists $self->{abstract_schema}->{$name}; if ($definition) { $self->{abstract_schema}->{$name} = dclone($definition); $self->{schema} = dclone($self->{abstract_schema}); $self->_adjust_schema(); } else { $self->{abstract_schema}->{$name} = {FIELDS => []}; $self->{schema}->{$name} = {FIELDS => []}; } } sub delete_column { =item C<delete_column($table, $column)> Description: Deletes a column from this Schema object. Params: $table - Name of the table that the column is in. The table must exist, or we will fail. $column - Name of the column to delete. Returns: nothing =cut my ($self, $table, $column) = @_; my $abstract_fields = $self->{abstract_schema}{$table}{FIELDS}; my $name_position = lsearch($abstract_fields, $column); die "Attempted to delete nonexistent column ${table}.${column}" if $name_position == -1; # Delete the key/value pair from the array. splice(@$abstract_fields, $name_position, 2); $self->{schema} = dclone($self->{abstract_schema}); $self->_adjust_schema(); } sub rename_column { =item C<rename_column($table, $old_name, $new_name)> Description: Renames a column on a table in the Schema object. The column that you are renaming must exist. Params: $table - The table the column is on. $old_name - The current name of the column. $new_name - The new name of hte column. Returns: nothing =cut my ($self, $table, $old_name, $new_name) = @_; my $def = $self->get_column_abstract($table, $old_name); die "Renaming a column that doesn't exist" if !$def; $self->delete_column($table, $old_name); $self->set_column($table, $new_name, $def); } sub set_column { =item C<set_column($table, $column, \%new_def)> Description: Changes the definition of a column in this Schema object. If the column doesn't exist, it will be added. The table that you specify must already exist in the Schema. NOTE: This does not affect the database on the disk. Use the C<Bugzilla::DB> "Schema Modification Methods" if you want to do that. Params: $table - The name of the table that the column is on. $column - The name of the column. \%new_def - The new definition for the column, in C<ABSTRACT_SCHEMA> format. Returns: nothing =cut my ($self, $table, $column, $new_def) = @_; my $fields = $self->{abstract_schema}{$table}{FIELDS}; $self->_set_object($table, $column, $new_def, $fields); } sub set_index { =item C<set_index($table, $name, $definition)> Description: Changes the definition of an index in this Schema object. If the index doesn't exist, it will be added. The table that you specify must already exist in the Schema. NOTE: This does not affect the database on the disk. Use the C<Bugzilla::DB> "Schema Modification Methods" if you want to do that. Params: $table - The table the index is on. $name - The name of the index. $definition - A hashref or an arrayref. An index definition in C<ABSTRACT_SCHEMA> format. Returns: nothing =cut my ($self, $table, $name, $definition) = @_; if ( exists $self->{abstract_schema}{$table} && !exists $self->{abstract_schema}{$table}{INDEXES} ) { $self->{abstract_schema}{$table}{INDEXES} = []; } my $indexes = $self->{abstract_schema}{$table}{INDEXES}; $self->_set_object($table, $name, $definition, $indexes); } # A private helper for set_index and set_column.


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