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// // Copyright (c) ShuYu Wang <andelf@gmail.com>, Feather Workshop and Pirmin Kalberer. All rights reserved. // //! An extension to rust-postgres, adds support for PostGIS. //! //! - PostGIS type helper //! - GCJ02 support (used offically in Mainland China) //! - Tiny WKB (TWKB) support //! //! ```rust,no_run //! use postgres::{Connection, TlsMode}; //! use postgis::ewkb; //! use postgis::LineString; //! //! fn main() { //! // conn .... //! # let conn = Connection::connect("postgresql://postgres@localhost", TlsMode::None).unwrap(); //! for row in &conn.query("SELECT * FROM busline", &[]).unwrap() { //! let route: ewkb::LineString = row.get("route"); //! let last_stop = route.points().last().unwrap(); //! let _ = conn.execute("INSERT INTO stops (stop) VALUES ($1)", &[&last_stop]); //! } //! } //! ``` //! //! Handling NULL values: //! //! ```rust,no_run //! let route = row.get_opt::<_, Option<ewkb::LineString>>("route"); //! match route.unwrap() { //! Ok(Some(geom)) => { println!("{:?}", geom) } //! Ok(None) => { /* Handle NULL value */ } //! Err(err) => { println!("Error: {}", err) } //! } //! ``` pub mod error; mod types; pub use types::{LineString, MultiLineString, MultiPoint, MultiPolygon, Point, Polygon}; pub mod ewkb; pub mod mars; mod postgis; pub mod twkb;