From 9e84f333e72e2b879b4677ba66326f8768063afa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Emmanuel=20Beno=C3=AEt?= <tseeker@legacyworlds.com>
Date: Sat, 30 Jun 2012 18:47:33 +0200
Subject: [PATCH] Events database structure

Added tables allowing event data to be stored on the long term:
 * events.events_v2 (which will need to be renamed) contains the events'
main entry
 * events.field_values stores field values for all events.
---
 .../parts/030-data/170-events.sql             | 141 ++++++++++++++++++
 1 file changed, 141 insertions(+)

diff --git a/legacyworlds-server-data/db-structure/parts/030-data/170-events.sql b/legacyworlds-server-data/db-structure/parts/030-data/170-events.sql
index d571ee3..36bd27f 100644
--- a/legacyworlds-server-data/db-structure/parts/030-data/170-events.sql
+++ b/legacyworlds-server-data/db-structure/parts/030-data/170-events.sql
@@ -239,6 +239,147 @@ CREATE SEQUENCE events.event_id_sequence;
 GRANT SELECT,UPDATE ON events.event_id_sequence TO :dbuser;
 
 
+/*
+ * Event storage table
+ * -------------------
+ * 
+ * This table stores the main entries for actual events. It is fed using the
+ * various type-specific event queues.
+ * 
+ * FIXME: this table should be renamed once the old internal messages are
+ * gone.
+ */
+DROP TABLE IF EXISTS events.events_v2 CASCADE;
+CREATE TABLE events.events_v2(
+	/* Numeric identifier of the event */
+	event_id		BIGINT NOT NULL PRIMARY KEY ,
+	
+	/* Type of the event */
+	evdef_id		VARCHAR( 48 ) NOT NULL ,
+
+	/* Real time at which the event occurred */
+	event_rtime		TIMESTAMP WITHOUT TIME ZONE
+						NOT NULL ,
+
+	/* Game time (tick identifier) at which the event occurred */
+	event_gtime		BIGINT NOT NULL ,
+	
+	/* Identifier of the empire to which the event applies */
+	empire_id		INT NOT NULL
+);
+
+CREATE UNIQUE INDEX idx_events_iddef
+	ON events.events_v2 ( event_id , evdef_id );
+CREATE INDEX idx_events_selector
+	ON events.events_v2 ( empire_id , event_rtime );
+
+ALTER TABLE events.events_v2
+	ADD CONSTRAINT fk_events_evdef
+		FOREIGN KEY ( evdef_id ) REFERENCES events.event_definitions ( evdef_id ) ,
+	ADD CONSTRAINT fk_events_empire
+		FOREIGN KEY ( empire_id ) REFERENCES emp.empires ( name_id )
+			ON DELETE CASCADE;
+
+GRANT SELECT ON events.events_v2 TO :dbuser;
+
+
+/*
+ * Event field values storage table
+ * --------------------------------
+ * 
+ * This table stores the values of the events' fields.
+ */
+DROP TABLE IF EXISTS events.field_values CASCADE;
+CREATE TABLE events.field_values(
+	/* The event's identifier */
+	event_id		BIGINT NOT NULL ,
+	
+	/* The event's type */
+	evdef_id		VARCHAR(48) NOT NULL ,
+	
+	/* The field's identifier */
+	efdef_id		VARCHAR(48) NOT NULL ,
+	
+	/* Literal field value */ 
+	efval_litteral	TEXT NOT NULL ,
+	
+	/* I18N string reference */
+	string_id		INT ,
+
+	/* Empire reference */
+	empire_id		INT ,
+	
+	/* Planet reference */
+	planet_id		INT ,
+	
+	/* Fleet reference */
+	fleet_id		BIGINT ,
+	
+	/* Alliance reference */
+	alliance_id		INT ,
+
+	/* Battle reference */
+	battle_id		BIGINT ,
+
+	/* Administrator reference */
+	admin_id		INT ,
+
+	/* Bug report reference */
+	bug_report_id	BIGINT ,
+	
+	PRIMARY KEY( event_id , evdef_id , efdef_id )
+);
+
+CREATE INDEX idx_fvalues_string
+	ON events.field_values ( string_id );
+CREATE INDEX idx_fvalues_empire
+	ON events.field_values ( empire_id );
+CREATE INDEX idx_fvalues_planet
+	ON events.field_values ( planet_id );
+CREATE INDEX idx_fvalues_fleet
+	ON events.field_values ( fleet_id );
+CREATE INDEX idx_fvalues_alliance
+	ON events.field_values ( alliance_id );
+CREATE INDEX idx_fvalues_battle
+	ON events.field_values ( battle_id );
+CREATE INDEX idx_fvalues_admin
+	ON events.field_values ( admin_id );
+CREATE INDEX idx_fvalues_bugreport
+	ON events.field_values ( bug_report_id );
+
+ALTER TABLE events.field_values
+	ADD CONSTRAINT fk_fvalues_event
+		FOREIGN KEY ( event_id , evdef_id ) REFERENCES events.events_v2 ( event_id , evdef_id )
+			ON DELETE CASCADE ,
+	ADD CONSTRAINT fk_fvalues_field
+		FOREIGN KEY ( evdef_id , efdef_id ) REFERENCES events.field_definitions ,
+	ADD CONSTRAINT fk_fvalues_string
+		FOREIGN KEY ( string_id ) REFERENCES defs.strings ,
+	ADD CONSTRAINT fk_fvalues_empire
+		FOREIGN KEY ( empire_id ) REFERENCES emp.empires
+			ON DELETE CASCADE ,
+	ADD CONSTRAINT fk_fvalues_planet
+		FOREIGN KEY ( planet_id ) REFERENCES verse.planets
+			ON DELETE CASCADE ,
+	ADD CONSTRAINT fk_fvalues_fleet
+		FOREIGN KEY ( fleet_id ) REFERENCES fleets.fleets
+			ON DELETE CASCADE ,
+	ADD CONSTRAINT fk_fvalues_alliance
+		FOREIGN KEY ( alliance_id ) REFERENCES emp.alliances
+			ON DELETE CASCADE ,
+	ADD CONSTRAINT fk_fvalues_battle
+		FOREIGN KEY ( battle_id ) REFERENCES battles.battles
+			ON DELETE CASCADE ,
+	ADD CONSTRAINT fk_fvalues_admin
+		FOREIGN KEY ( admin_id ) REFERENCES admin.administrators
+			ON DELETE CASCADE ,
+	ADD CONSTRAINT fk_fvalues_bugreport
+		FOREIGN KEY ( bug_report_id ) REFERENCES bugs.initial_report_events
+			ON DELETE CASCADE;
+
+GRANT SELECT ON events.field_values TO :dbuser;
+
+
 
 /*
  * OLD B6M1 CODE BELOW!