Ajouter dbschema et dbstruct

Contiennent respective le schéma de base de donnée et l'objet
dbstruct.Presence, pour en manipuler les données

dbschema/dbschema.go

@@ -0,0 +1,11 @@
+// Package dbschema defines the database schema for the application
+package dbschema
+
+const Schema string = `
+CREATE TABLE IF NOT EXISTS presences (
+    id VARCHAR(7) PRIMARY KEY NOT NULL,
+    at TIMESTAMP NOT NULL,
+    name VARCHAR(50) NOT NULL,
+    programme_id NOT NULL
+);
+`

dbstruct/dbstruct.go

@@ -0,0 +1,14 @@
+/*
+Package dbstruct provides struct types used to represent data declared in
+dbschema and marshalled / unmarshalled by dbclient
+*/
+package dbstruct
+
+import "time"
+
+type Presence struct {
+	ID          string     `db:"id" json:"id" csv:"id"`
+	At          *time.Time `db:"at" json:"at" csv:"at"`
+	Name        string     `db:"name" json:"name" csv:"name"`
+	ProgrammeID string     `db:"programme_id" json:"programme_id" csv:"programme_id"`
+}