fmt: fix SQL formatting in ORM expressions - remove trailing spaces (#5996)

vlib/v/fmt/fmt.v

@@ -968,19 +968,16 @@ pub fn (mut f Fmt) expr(node ast.Expr) {
 				}
 			}
 			f.write('from ${util.strip_mod_name(node.table_name)}')
-			f.write(' ')
 			if node.has_where {
-				f.write('where ')
+				f.write(' where ')
 				f.expr(node.where_expr)
-				f.write(' ')
 			}
 			if node.has_limit {
-				f.write('limit ')
+				f.write(' limit ')
 				f.expr(node.limit_expr)
-				f.write(' ')
 			}
 			if node.has_offset {
-				f.write('offset ')
+				f.write(' offset ')
 				f.expr(node.offset_expr)
 			}
 			f.writeln('')

vlib/v/fmt/tests/orm_keep.vv

@@ -0,0 +1,45 @@
+import sqlite
+
+struct Customer {
+	id        int
+	name      string
+	nr_orders int
+	country   string
+}
+
+fn find_all_customers(db sqlite.DB) []Customer {
+	return sql db {
+		select from Customer
+	}
+}
+
+fn main() {
+	db := sqlite.connect('customers.db')?
+	// select count(*) from Customer
+	nr_customers := sql db {
+		select count from Customer
+	}
+	println('number of all customers: $nr_customers')
+	// V syntax can be used to build queries
+	// db.select returns an array
+	uk_customers := sql db {
+		select from Customer where country == 'uk' && nr_orders > 0
+	}
+	println(uk_customers.len)
+	for customer in uk_customers {
+		println('$customer.id - $customer.name')
+	}
+	// by adding `limit 1` we tell V that there will be only one object
+	customer := sql db {
+		select from Customer where id == 1 limit 1
+	}
+	println('$customer.id - $customer.name')
+	// insert a new customer
+	new_customer := Customer{
+		name: 'Bob'
+		nr_orders: 10
+	}
+	sql db {
+		insert new_customer into Customer
+	}
+}