forked from brmlab/brmbar-github
945ee705c3
Uses PostgreSQL to store accounts and transactions, and Perl + Moose for the implementation. The schema is somewhat complicated, but brmburo-compatible; accounting design by TMA.
79 lines
2.7 KiB
Text
79 lines
2.7 KiB
Text
CREATE SEQUENCE currencies_id_seq START WITH 1 INCREMENT BY 1;
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CREATE TABLE currencies (
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id INTEGER PRIMARY KEY NOT NULL DEFAULT NEXTVAL('currencies_id_seq'::regclass),
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name VARCHAR(128) NOT NULL
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);
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INSERT INTO currencies (name) VALUES ('Kč');
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CREATE TYPE exchange_rate_direction AS ENUM ('source_to_target', 'target_to_source');
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CREATE TABLE exchange_rates (
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valid_since TIMESTAMP WITHOUT TIME ZONE DEFAULT NOW() NOT NULL,
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target INTEGER NOT NULL,
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FOREIGN KEY (target) REFERENCES currencies (id),
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source INTEGER NOT NULL,
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FOREIGN KEY (source) REFERENCES currencies (id),
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rate DECIMAL(12,2) NOT NULL,
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rate_dir exchange_rate_direction NOT NULL
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);
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-- brmbar users have 'debt' accounts; a negative balance means that
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-- we have debt to the users, i.e. they are positive relative to the brmbar.
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-- Positive balance means that the users have debt in brmbar.
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-- Therefore, user's balance must always be shown negated.
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CREATE SEQUENCE accounts_id_seq START WITH 1 INCREMENT BY 1;
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CREATE TYPE account_type AS ENUM ('cash', 'debt', 'inventory', 'income', 'expense', 'starting_balance', 'ending_balance');
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CREATE TABLE accounts (
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id INTEGER PRIMARY KEY NOT NULL DEFAULT NEXTVAL('accounts_id_seq'::regclass),
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name VARCHAR(128) NOT NULL,
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currency INTEGER NOT NULL,
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FOREIGN KEY (currency) REFERENCES currencies (id),
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acctype account_type NOT NULL
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);
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INSERT INTO accounts (name, currency, acctype) VALUES ('BrmBar Cash', (SELECT id FROM currencies WHERE name='Kč'), 'cash');
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INSERT INTO accounts (name, currency, acctype) VALUES ('BrmBar Profits', (SELECT id FROM currencies WHERE name='Kč'), 'income');
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CREATE SEQUENCE barcodes_id_seq START WITH 1 INCREMENT BY 1;
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CREATE TABLE barcodes (
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barcode VARCHAR(128) PRIMARY KEY NOT NULL,
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account INTEGER NOT NULL,
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FOREIGN KEY (account) REFERENCES accounts (id)
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);
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CREATE SEQUENCE transactions_id_seq START WITH 1 INCREMENT BY 1;
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CREATE TABLE transactions (
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id INTEGER PRIMARY KEY NOT NULL DEFAULT NEXTVAL('transactions_id_seq'::regclass),
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time TIMESTAMP DEFAULT NOW() NOT NULL,
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responsible INTEGER,
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FOREIGN KEY (responsible) REFERENCES accounts (id),
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-- FIXME: imperfect constraint to assure this is a user
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description TEXT
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);
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CREATE SEQUENCE transaction_splits_id_seq START WITH 1 INCREMENT BY 1;
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CREATE TYPE transaction_split_side AS ENUM ('credit', 'debit');
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CREATE TABLE transaction_splits (
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id INTEGER PRIMARY KEY NOT NULL DEFAULT NEXTVAL('transaction_splits_id_seq'::regclass),
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transaction INTEGER NOT NULL,
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FOREIGN KEY (transaction) REFERENCES transactions (id),
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side transaction_split_side NOT NULL,
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account INTEGER NOT NULL,
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FOREIGN KEY (account) REFERENCES accounts (id),
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amount DECIMAL(12,2) NOT NULL,
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memo TEXT
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);
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