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use postgres::{Client,error::Error};
pub mod asset_handler;
pub mod quote_handler;
pub mod transaction_handler;
pub struct PostgresDB<'a> {
pub conn: &'a mut Client,
}
impl PostgresDB<'_> {
pub fn clean(&mut self) -> Result<(), Error> {
self.conn
.execute("DROP TABLE IF EXISTS transactions", &[])?;
self.conn.execute("DROP TABLE IF EXISTS quotes", &[])?;
self.conn.execute("DROP TABLE IF EXISTS ticker", &[])?;
self.conn
.execute("DROP TYPE IF EXISTS market_data_source", &[])?;
self.conn.execute("DROP TABLE IF EXISTS assets", &[])?;
self.conn
.execute("DROP TABLE IF EXISTS rounding_digits", &[])?;
self.init()
}
pub fn init(&mut self) -> Result<(), Error> {
self.conn.execute(
"CREATE TABLE IF NOT EXISTS assets (
id SERIAL PRIMARY KEY,
name TEXT NOT NULL UNIQUE,
wkn TEXT UNIQUE,
isin TEXT UNIQUE,
note TEXT
)",
&[],
)?;
self.conn.execute(
"CREATE TABLE IF NOT EXISTS transactions (
id SERIAL PRIMARY KEY,
trans_type TEXT NOT NULL,
asset_id INTEGER,
cash_amount FLOAT8 NOT NULL,
cash_currency TEXT NOT NULL,
cash_date DATE NOT NULL,
related_trans INTEGER,
position FLOAT8,
note TEXT,
FOREIGN KEY(asset_id) REFERENCES assets(id),
FOREIGN KEY(related_trans) REFERENCES transactions(id)
);",
&[],
)?;
self.conn.execute(
"CREATE TABLE IF NOT EXISTS ticker (
id SERIAL PRIMARY KEY,
name TEXT NOT NULL,
asset_id INTEGER NOT NULL,
source TEXT NOT NULL,
priority INTEGER NOT NULL,
currency TEXT NOT NULL,
factor FLOAT8 NOT NULL DEFAULT 1.0,
FOREIGN KEY(asset_id) REFERENCES assets(id)
);",
&[],
)?;
self.conn.execute(
"CREATE TABLE IF NOT EXISTS quotes (
id SERIAL PRIMARY KEY,
ticker_id INTEGER NOT NULL,
price FLOAT8 NOT NULL,
time TIMESTAMP WITH TIME ZONE NOT NULL,
volume FLOAT8,
FOREIGN KEY(ticker_id) REFERENCES ticker(id) );",
&[],
)?;
self.conn.execute(
"CREATE TABLE IF NOT EXISTS rounding_digits (
id SERIAL PRIMARY KEY,
currency TEXT NOT NULL UNIQUE,
digits INT NOT NULL);",
&[],
)?;
Ok(())
}
}