From 3390592f47161beb0acfa052b9d57f704869feaf Mon Sep 17 00:00:00 2001
From: Carlos Nieto <jose.carlos@menteslibres.net>
Date: Wed, 16 Apr 2014 18:43:05 -0500
Subject: [PATCH] Adding example for QL.
---
ql/_example/example.sql | 6 +++
ql/_example/main.go | 84 +++++++++++++++++++++++++++++++++++++++++
ql/_example/test.sh | 4 ++
3 files changed, 94 insertions(+)
create mode 100644 ql/_example/example.sql
create mode 100644 ql/_example/main.go
create mode 100755 ql/_example/test.sh
diff --git a/ql/_example/example.sql b/ql/_example/example.sql
new file mode 100644
index 00000000..5a04bfc7
--- /dev/null
+++ b/ql/_example/example.sql
@@ -0,0 +1,6 @@
+DROP TABLE IF EXISTS birthdays;
+
+CREATE TABLE birthdays (
+ name string,
+ born time
+);
diff --git a/ql/_example/main.go b/ql/_example/main.go
new file mode 100644
index 00000000..013517e8
--- /dev/null
+++ b/ql/_example/main.go
@@ -0,0 +1,84 @@
+package main
+
+import (
+ "fmt"
+ "log"
+ "time"
+ "upper.io/db" // Imports the main db package.
+ _ "upper.io/db/ql" // Imports the ql adapter.
+)
+
+var settings = db.Settings{
+ Database: `example.db`, // Path to database file.
+}
+
+type Birthday struct {
+ // Maps the "Name" property to the "name" column of the "birthdays" table.
+ Name string `field:"name"`
+ // Maps the "Born" property to the "born" column of the "birthdays" table.
+ Born time.Time `field:"born"`
+}
+
+func main() {
+
+ // Attemping to open the "example.db" database file.
+ sess, err := db.Open("ql", settings)
+
+ if err != nil {
+ log.Fatalf("db.Open(): %q\n", err)
+ }
+
+ // Remember to close the database session.
+ defer sess.Close()
+
+ // Pointing to the "birthdays" table.
+ birthdayCollection, err := sess.Collection("birthdays")
+
+ if err != nil {
+ log.Fatalf("sess.Collection(): %q\n", err)
+ }
+
+ // Attempt to remove existing rows (if any).
+ err = birthdayCollection.Truncate()
+
+ if err != nil {
+ log.Fatalf("Truncate(): %q\n", err)
+ }
+
+ // Inserting some rows into the "birthdays" table.
+
+ birthdayCollection.Append(Birthday{
+ Name: "Hayao Miyazaki",
+ Born: time.Date(1941, time.January, 5, 0, 0, 0, 0, time.Local),
+ })
+
+ birthdayCollection.Append(Birthday{
+ Name: "Nobuo Uematsu",
+ Born: time.Date(1959, time.March, 21, 0, 0, 0, 0, time.Local),
+ })
+
+ birthdayCollection.Append(Birthday{
+ Name: "Hironobu Sakaguchi",
+ Born: time.Date(1962, time.November, 25, 0, 0, 0, 0, time.Local),
+ })
+
+ // Let's query for the results we've just inserted.
+ var res db.Result
+
+ res = birthdayCollection.Find()
+
+ var birthdays []Birthday
+
+ // Query all results and fill the birthdays variable with them.
+ err = res.All(&birthdays)
+
+ if err != nil {
+ log.Fatalf("res.All(): %q\n", err)
+ }
+
+ // Printing to stdout.
+ for _, birthday := range birthdays {
+ fmt.Printf("%s was born in %s.\n", birthday.Name, birthday.Born.Format("January 2, 2006"))
+ }
+
+}
diff --git a/ql/_example/test.sh b/ql/_example/test.sh
new file mode 100755
index 00000000..a6de8c67
--- /dev/null
+++ b/ql/_example/test.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+rm -f example.db
+cat example.sql | ql -db example.db
+go run main.go
--
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