113 lines
5.2 KiB
SQL
113 lines
5.2 KiB
SQL
-- Drop tables in reverse order of dependency
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DROP TABLE IF EXISTS public.settings_product CASCADE;
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DROP TABLE IF EXISTS public.settings_vendor CASCADE;
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DROP TABLE IF EXISTS public.settings_global CASCADE;
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-- Table Definition: settings_global
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CREATE TABLE public.settings_global (
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setting_key VARCHAR PRIMARY KEY,
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setting_value VARCHAR NOT NULL,
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description TEXT,
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updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
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);
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-- Table Definition: settings_vendor
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CREATE TABLE public.settings_vendor (
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vendor VARCHAR PRIMARY KEY, -- Matches products.vendor
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default_lead_time_days INT,
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default_days_of_stock INT,
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updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
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);
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-- Index for faster lookups if needed (PK usually sufficient)
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-- CREATE INDEX idx_settings_vendor_vendor ON public.settings_vendor(vendor);
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-- Table Definition: settings_product
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CREATE TABLE public.settings_product (
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pid INT8 PRIMARY KEY,
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lead_time_days INT, -- Overrides vendor/global
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days_of_stock INT, -- Overrides vendor/global
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safety_stock INT DEFAULT 0, -- Minimum desired stock level
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forecast_method VARCHAR DEFAULT 'standard', -- e.g., 'standard', 'seasonal'
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exclude_from_forecast BOOLEAN DEFAULT FALSE,
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updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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CONSTRAINT fk_settings_product_pid FOREIGN KEY (pid) REFERENCES public.products(pid) ON DELETE CASCADE ON UPDATE CASCADE
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);
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-- Description: Inserts or updates standard default global settings.
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-- Safe to rerun; will update existing keys with these default values.
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-- Dependencies: `settings_global` table must exist.
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-- Frequency: Run once initially, or rerun if you want to reset global defaults.
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INSERT INTO public.settings_global (setting_key, setting_value, description) VALUES
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('abc_revenue_threshold_a', '0.80', 'Revenue percentage for Class A (cumulative)'),
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('abc_revenue_threshold_b', '0.95', 'Revenue percentage for Class B (cumulative)'),
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('abc_calculation_basis', 'revenue_30d', 'Metric for ABC calc (revenue_30d, sales_30d, lifetime_revenue)'),
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('abc_calculation_period', '30', 'Days period for ABC calculation if not lifetime'),
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('default_forecast_method', 'standard', 'Default forecast method (standard, seasonal)'),
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('default_lead_time_days', '14', 'Global default lead time in days'),
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('default_days_of_stock', '30', 'Global default days of stock coverage target'),
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-- Set default safety stock to 0 units. Can be overridden per product.
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-- If you wanted safety stock in days, you'd store 'days' here and calculate units later.
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('default_safety_stock_units', '0', 'Global default safety stock in units')
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ON CONFLICT (setting_key) DO UPDATE SET
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setting_value = EXCLUDED.setting_value,
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description = EXCLUDED.description,
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updated_at = CURRENT_TIMESTAMP; -- Update timestamp if default value changes
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-- Description: Creates placeholder rows in `settings_vendor` for each unique vendor
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-- found in the `products` table. Does NOT set specific overrides.
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-- Safe to rerun; will NOT overwrite existing vendor settings.
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-- Dependencies: `settings_vendor` table must exist, `products` table populated.
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-- Frequency: Run once after initial product load, or periodically if new vendors are added.
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INSERT INTO public.settings_vendor (
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vendor,
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default_lead_time_days,
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default_days_of_stock
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-- updated_at will use its default CURRENT_TIMESTAMP on insert
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)
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SELECT
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DISTINCT p.vendor,
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-- Explicitly cast NULL to INTEGER to resolve type mismatch
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CAST(NULL AS INTEGER),
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CAST(NULL AS INTEGER)
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FROM
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public.products p
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WHERE
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p.vendor IS NOT NULL
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AND p.vendor <> '' -- Exclude blank vendors if necessary
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ON CONFLICT (vendor) DO NOTHING; -- IMPORTANT: Do not overwrite existing vendor settings
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SELECT COUNT(*) FROM public.settings_vendor; -- Verify rows were inserted
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-- Description: Creates placeholder rows in `settings_product` for each unique product
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-- found in the `products` table. Sets basic defaults but no specific overrides.
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-- Safe to rerun; will NOT overwrite existing product settings.
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-- Dependencies: `settings_product` table must exist, `products` table populated.
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-- Frequency: Run once after initial product load, or periodically if new products are added.
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INSERT INTO public.settings_product (
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pid,
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lead_time_days, -- NULL = Inherit from Vendor/Global
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days_of_stock, -- NULL = Inherit from Vendor/Global
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safety_stock, -- Default to 0 units initially
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forecast_method, -- NULL = Inherit from Global ('standard')
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exclude_from_forecast -- Default to FALSE
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-- updated_at will use its default CURRENT_TIMESTAMP on insert
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)
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SELECT
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p.pid,
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CAST(NULL AS INTEGER), -- Explicitly cast NULL to INTEGER
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CAST(NULL AS INTEGER), -- Explicitly cast NULL to INTEGER
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COALESCE((SELECT setting_value::int FROM settings_global WHERE setting_key = 'default_safety_stock_units'), 0), -- Use global default safety stock units
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CAST(NULL AS VARCHAR), -- Cast NULL to VARCHAR for forecast_method (already varchar, but explicit)
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FALSE -- Default: Include in forecast
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FROM
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public.products p
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ON CONFLICT (pid) DO NOTHING; -- IMPORTANT: Do not overwrite existing product-specific settings |