Adds most of the toolsHEADmaster

1 files changed, 63 insertions, 0 deletions

diff --git a/v_windows/v/old/examples/database/psql/customer.v b/v_windows/v/old/examples/database/psql/customer.v
new file mode 100644
index 0000000..4538a94
--- /dev/null
+++ b/v_windows/v/old/examples/database/psql/customer.v
@@ -0,0 +1,63 @@
+module main
+
+import pg
+
+const dash = '----------------------------------------------------------------'
+
+struct Customer {
+	id        int
+	name      string
+	nr_orders int
+	country   string
+}
+
+fn main() {
+	/*
+	db := pg.connect(pg.Config{
+		host: 'localhost' //'127.0.0.1'
+		user: 'postgres'
+		dbname: 'customerdb'
+	}) or {
+		println('failed to connect')
+		println(err)
+		return
+	}
+
+	nr_customers := db.select count from Customer
+	println('Total customers: $nr_customers')
+
+	// V syntax can be used to build queries
+	println(dash)
+	bg_country := 'Bulgaria'
+	bg_customers := db.select from Customer where country == bg_country  && id != 2
+	for customer in bg_customers {
+		println('$customer.country | $customer.id - $customer.name')
+	}
+
+	println(dash)
+	ru_customers := db.select from Customer where country == 'Russia'
+	for customer in ru_customers {
+		println('$customer.country | $customer.id - $customer.name')
+	}
+
+	// by adding `limit 1` we tell V that there will be only one object
+	println(dash)
+	existing := db.select from Customer where id == 1 limit 1 or { panic(err) }
+	println('Existing customer name: $existing.name')
+	println('Existing customer full information:')
+	println(existing)
+
+	println(dash)
+	q := Customer{}
+	// It's easy to handle queries that don't return any data
+	if anon := db.select from Customer where id == 12345 && name == q.name &&
+			nr_orders > q.nr_orders limit 1 {
+		println('Non existing customer name: $anon.name')
+	}
+	// Insert a new customer
+	nc := Customer{
+		name: 'John Doe'
+		nr_orders: 10
+	}
+	db.insert(nc)*/
+}