Support for reading sections from db

src/main.rs

@@ -1,27 +1,39 @@
-use rusqlite::NO_PARAMS;
-use rusqlite::Connection as DbConnection;
 use color_eyre::eyre::Result;
+use rusqlite::Connection as DbConnection;
+use rusqlite::NO_PARAMS;
 
-mod section_interface;
-mod model;
 mod db;
 mod migrations;
+mod model;
+mod section_interface;
+
+use model::Section;
 
-fn setup_db() -> Result<()> {
+fn setup_db() -> Result<DbConnection> {
     // let conn = DbConnection::open_in_memory()?;
     let mut conn = DbConnection::open("test.db")?;
 
     let migs = db::create_migrations();
     migs.apply(&mut conn)?;
 
-    Ok(())
+    Ok(conn)
+}
+
+fn query_sections(conn: &DbConnection) -> Result<Vec<Section>> {
+    let mut statement = conn.prepare_cached("SELECT id, name, interface_id FROM sections;")?;
+    let rows = statement.query_map(NO_PARAMS, Section::from_sql)?;
+    Ok(rows.collect::<Result<Vec<_>, _>>()?)
 }
 
 fn main() -> Result<()> {
     env_logger::init();
     color_eyre::install()?;
-    println!("Hello, world!");
-    setup_db().unwrap();
+    let conn = setup_db()?;
+
+    let sections = query_sections(&conn);
+    for sec in sections {
+        println!("section: {:?}", sec);
+    }
 
     Ok(())
 }

src/model/mod.rs

@@ -1 +1,3 @@
 mod section;
+
+pub use section::Section;

src/model/section.rs

@@ -1,21 +1,23 @@
 use crate::section_interface::SectionId;
-use rusqlite::Row;
-use std::convert::TryFrom;
+use rusqlite::{Row as SqlRow, Error as SqlError, ToSql};
 
+#[derive(Debug, Clone)]
 pub struct Section {
     pub id: u32,
     pub name: String,
     pub interface_id: SectionId,
 }
 
-impl<'a> TryFrom<&Row<'a>> for Section {
-    type Error = rusqlite::Error;
-    fn try_from(row: &Row<'a>) -> Result<Section, Self::Error> {
+impl Section {
+    pub fn from_sql<'a>(row: &SqlRow<'a>) -> Result<Section, SqlError> {
         Ok(Section {
             id: row.get(0)?,
             name: row.get(1)?,
             interface_id: row.get(2)?,
         })
     }
-}
 
+    pub fn as_sql(&self) -> Vec<&dyn ToSql> {
+        vec![&self.id, &self.name, &self.interface_id]
+    }
+}