aglkm
41 lines
1.1 KiB
Rust
41 lines
1.1 KiB
Rust
use rusqlite::{Connection, Result};
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pub fn open_db_connection(db_name: &str) -> Result<Connection> {
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let conn = Connection::open(db_name)?;
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Ok(conn)
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}
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pub fn create_statistics_table(conn: &Connection) -> Result<()> {
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conn.execute(
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"CREATE TABLE IF NOT EXISTS statistics (
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id INTEGER PRIMARY KEY,
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date TEXT NOT NULL UNIQUE,
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hashrate TEXT NOT NULL,
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txns TEXT NOT NULL,
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fees TEXT NOT NULL,
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utxos TEXT NOT NULL,
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kernels TEXT NOT NULL
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)",
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(), // empty list of parameters.
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)?;
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Ok(())
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}
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pub fn read_row(conn: &Connection, row_name: &str) -> Result<Vec<String>> {
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let sql = format!("SELECT {} FROM statistics ORDER BY id", row_name);
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let mut stmt = conn.prepare(&sql)?;
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let data_iter = stmt
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.query_map([], |row| {
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row.get(0)
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}).unwrap();
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// Collect all the results into a vector of strings
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let data: Vec<String> = data_iter.collect::<Result<Vec<_>, _>>().unwrap();
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Ok(data)
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}
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