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webgis-lohne/migrations/003_news_table.sql

44 lines
1.9 KiB
SQL

-- =====================================================================
-- Migration 004: Creates News Table for Municipality Announcements
-- =====================================================================
-- ---------------------------------------------------------------------
-- Block 1: Creates Table "news"
-- ---------------------------------------------------------------------
CREATE TABLE IF NOT EXISTS news (
news_id SERIAL PRIMARY KEY,
municipality_id INTEGER NOT NULL REFERENCES municipalities(municipality_id) ON DELETE CASCADE,
title VARCHAR(255) NOT NULL,
content TEXT NOT NULL,
author_name VARCHAR(100) NOT NULL DEFAULT 'Stadtverwaltung',
published_at TIMESTAMP NOT NULL DEFAULT NOW(),
created_at TIMESTAMP NOT NULL DEFAULT NOW(),
updated_at TIMESTAMP NOT NULL DEFAULT NOW()
);
-- ---------------------------------------------------------------------
-- Block 2: Trigger Functions
-- ---------------------------------------------------------------------
-- Automatically Refresh updated_at on every UPDATE.
CREATE TRIGGER set_news_updated_at
BEFORE UPDATE ON news
FOR EACH ROW
EXECUTE FUNCTION set_updated_at();
-- ---------------------------------------------------------------------
-- Block 3 Indexes for fast Queries
-- ---------------------------------------------------------------------
CREATE INDEX idx_news_municipality ON news(municipality_id);
-- ---------------------------------------------------------------------
-- Block 4: Seed Data — Initial News Article
-- ---------------------------------------------------------------------
INSERT INTO news (municipality_id, title, content)
SELECT municipality_id, 'Mitmachkarte gestartet',
'Die Mitmachkarte als Bürgerbeteiligungsportal der Stadt Lohne (Oldenburg) wird nun freigeschaltet. Wir freuen uns auf Ihre Hinweise und Vorschläge!'
FROM municipalities WHERE slug = 'lohne';