query.rs
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	//! Service to search imported FANTOIR table.
	//!
	//! This is intended to be exposed to the tool, and used internally to fix FANTOIR codes:
	//!
	//! - the `fantoir-datasource query` command can so be used to check
	//! if an import contains expected values to validate before promotion.
	//!
	//! - the Wikidata import code uses `search_fantoir_code` when the FANTOIR
	//! code doesn't contain the code direction, and it can't be computed.

	use std::fmt::{Display, Formatter};
	use sqlx::PgPool;

	/* -------------------------------------------------------------
	Search a fantoir code from INSEE code, identifiant communal.

	Useful to fix fantoir code from other sources.
	- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */

	pub async fn search_fantoir_code(pool: &PgPool, code_insee: &str, identifiant_communal_voie: &str) -> Option<String> {
	sqlx::query_scalar( r#"
	SELECT code_fantoir
	FROM fantoir
	WHERE code_insee = $1 AND identifiant_communal_voie = $2"#)
	.bind(code_insee)
	.bind(identifiant_communal_voie)
	.fetch_optional(pool)
	.await
	.unwrap()
	}

	/* -------------------------------------------------------------
	Query short information about voies.

	This tool is mainly intended as an import tool, but as we need
	this query service to cross datasources, we can leverage this
	to offer a small search facility.
	- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */

	#[derive(Debug, Clone, sqlx::FromRow)]
	pub struct FantoirVoieResult {
	pub code_fantoir: String,
	pub code_insee: String,
	pub identifiant_communal_voie: String,
	pub code_nature_voie: Option<String>,
	pub libelle_voie: String,
	}

	impl FantoirVoieResult {
	fn get_name (&self) -> String {
	match &self.code_nature_voie {
	None => self.libelle_voie.to_string(),
	Some(kind) => match kind.len() {
	0 => self.libelle_voie.to_string(),
	_ => format!("{} {}", kind, self.libelle_voie)
	}
	}
	}
	}

	impl Display for FantoirVoieResult {
	fn fmt(&self, f: &mut Formatter) -> std::fmt::Result {
	write!(
	f, "{}\t{} {}\t{}",
	self.code_fantoir, self.code_insee, self.identifiant_communal_voie, self.get_name()
	)
	}
	}

	pub async fn query_fantoir_code(pool: &PgPool, code_fantoir: &str) -> Option<FantoirVoieResult> {
	sqlx::query_as(r#"
	SELECT code_fantoir, code_insee, identifiant_communal_voie, code_nature_voie, libelle_voie
	FROM fantoir
	WHERE code_fantoir = $1;"#)
	.bind(code_fantoir)
	.fetch_optional(pool)
	.await
	.unwrap()
	}

	pub async fn query_libelle (pool: &PgPool, libelle: &str) -> Vec<FantoirVoieResult> {
	sqlx::query_as(r#"
	SELECT code_fantoir, code_insee, identifiant_communal_voie, code_nature_voie, libelle_voie
	FROM fantoir
	WHERE libelle_voie ILIKE CONCAT('%', $1, '%');
	"#)
	.bind(libelle)
	.fetch_all(pool)
	.await
	.unwrap()
	}

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