66 lines
2.5 KiB
PL/PgSQL
66 lines
2.5 KiB
PL/PgSQL
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-- Migration: Add document management tables
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-- Date: 2026-06-20
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-- Description: Create tables for managing operational documents organized by chapters
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-- Step 1: Create document_chapters table
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CREATE TABLE IF NOT EXISTS document_chapters (
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id SERIAL PRIMARY KEY,
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name VARCHAR(128) NOT NULL,
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description VARCHAR(512),
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parent_id INTEGER REFERENCES document_chapters(id) ON DELETE CASCADE,
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sort_order INTEGER DEFAULT 0 NOT NULL,
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created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP NOT NULL,
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updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP NOT NULL
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);
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-- Create indexes for document_chapters
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CREATE INDEX IF NOT EXISTS idx_document_chapters_name ON document_chapters(name);
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CREATE INDEX IF NOT EXISTS idx_document_chapters_parent_id ON document_chapters(parent_id);
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CREATE INDEX IF NOT EXISTS idx_document_chapters_sort_order ON document_chapters(sort_order);
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-- Step 2: Create documents table
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CREATE TABLE IF NOT EXISTS documents (
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id SERIAL PRIMARY KEY,
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title VARCHAR(256) NOT NULL,
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content TEXT NOT NULL,
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chapter_id INTEGER REFERENCES document_chapters(id) ON DELETE CASCADE,
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sort_order INTEGER DEFAULT 0 NOT NULL,
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status VARCHAR(16) DEFAULT 'draft' NOT NULL,
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created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP NOT NULL,
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updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP NOT NULL
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);
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-- Create indexes for documents
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CREATE INDEX IF NOT EXISTS idx_documents_title ON documents(title);
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CREATE INDEX IF NOT EXISTS idx_documents_chapter_id ON documents(chapter_id);
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CREATE INDEX IF NOT EXISTS idx_documents_sort_order ON documents(sort_order);
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CREATE INDEX IF NOT EXISTS idx_documents_status ON documents(status);
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-- Step 3: Create trigger to update updated_at on document_chapters
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CREATE OR REPLACE FUNCTION update_document_chapters_updated_at()
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RETURNS TRIGGER AS $$
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BEGIN
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NEW.updated_at = CURRENT_TIMESTAMP;
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RETURN NEW;
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END;
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$$ LANGUAGE plpgsql;
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CREATE TRIGGER trigger_update_document_chapters_updated_at
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BEFORE UPDATE ON document_chapters
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FOR EACH ROW
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EXECUTE FUNCTION update_document_chapters_updated_at();
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-- Step 4: Create trigger to update updated_at on documents
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CREATE OR REPLACE FUNCTION update_documents_updated_at()
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RETURNS TRIGGER AS $$
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BEGIN
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NEW.updated_at = CURRENT_TIMESTAMP;
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RETURN NEW;
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END;
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$$ LANGUAGE plpgsql;
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CREATE TRIGGER trigger_update_documents_updated_at
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BEFORE UPDATE ON documents
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FOR EACH ROW
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EXECUTE FUNCTION update_documents_updated_at();
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