From: Andrea Zagli <azagli@libero.it>
Date: Mon, 2 Jan 2023 15:08:07 +0000 (+0100)
Subject: Rendering header.
X-Git-Url: https://saetta.ns0.it/gitweb?a=commitdiff_plain;h=79006a987ce56a18726e9aab9c5d24c217b543fd;p=rust%2Fzakgrid

Rendering header.
---

diff --git a/Cargo.toml b/Cargo.toml
index 4c5e1b8..036a3f9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,11 +7,12 @@ edition = "2021"
 
 
 [dependencies]
+serde = "1"
+serde_derive = "1"
+tera = "1.8.0"
 
 
 [dev-dependencies]
-serde = "1"
-serde_derive = "1"
 config = "0.13"
 
 actix-web = "4"
diff --git a/examples/grid.rs b/examples/grid.rs
index 4e470fb..683deac 100644
--- a/examples/grid.rs
+++ b/examples/grid.rs
@@ -45,11 +45,7 @@ async fn index(
 
 	let mut grid = zakgrid::Grid::new();
 
-	let mut s = format!("before: {}\n", grid.header_tmpl);
-
-	grid.header_tmpl = String::from("new header");
-
-	s.push_str(format!("after: {}\n", grid.header_tmpl).as_str());
+	let mut s = String::new();
 
 	let mut col = zakgrid::Column::new("col name");
 	s.push_str(format!("column added: {}\n", col.name()).as_str());
@@ -67,6 +63,9 @@ async fn index(
 		s.push_str(format!("col {} title {}\n", i, v.title()).as_str());
 	}
 
+	let header = grid.header();
+	s.push_str(header.as_str());
+
 	Ok(HttpResponse::Ok().body(s))
 }
 
diff --git a/src/lib.rs b/src/lib.rs
index 93e0582..7033e55 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,3 +1,7 @@
+use serde_derive::Serialize;
+use tera::Tera;
+
+#[derive(Debug, Serialize)]
 pub enum Align {
 	Left,
 	Center,
@@ -35,7 +39,7 @@ impl Column {
 }
 
 pub struct Grid {
-	pub header_tmpl: String,
+	header_tmpl: String,
 	header_row_tmpl: String,
 	row_tmpl: String,
 	row_col_tmpl: String,
@@ -45,8 +49,8 @@ pub struct Grid {
 impl Grid {
 	pub fn new() -> Grid {
 		Grid {
-			header_tmpl: String::new(),
-			header_row_tmpl: String::new(),
+			header_tmpl: String::from("<tr>\n{{ row }}</tr>\n"),
+			header_row_tmpl: String::from("\t<th{% if align == \"Center\" %} align='center'{% elif align == \"Right\" %} align='right'{% endif %}>{{ title }}</th>\n"),
 			row_tmpl: String::new(),
 			row_col_tmpl: String::new(),
 			columns: vec![]
@@ -60,4 +64,26 @@ impl Grid {
 	pub fn columns(&self) -> &Vec<Column> {
 		&self.columns
 	}
+
+	pub fn header(&self) -> String {
+		let mut s = String::new();
+
+		let mut tera = Tera::default();
+
+		tera.add_raw_template("header", &self.header_tmpl);
+		tera.add_raw_template("header_row", &self.header_row_tmpl);
+
+		for c in &self.columns {
+			if !c.hidden {
+				let mut context = tera::Context::new();
+				context.insert("title", &c.title);
+				context.insert("align", &c.align);
+				s.push_str(tera.render("header_row", &context).unwrap().as_str());
+			}
+		}
+
+		let mut context = tera::Context::new();
+		context.insert("row", s.as_str());
+		String::from(tera.render("header", &context).unwrap().as_str())
+	}
 }