Adding database and CSV importer

go.mod

@@ -1,3 +1,5 @@
 module git.1750studios.com/ToddShepard/DB640
 
-go 1.13
+go 1.14
+
+require github.com/jinzhu/gorm v1.9.12

go.sum

@@ -0,0 +1,30 @@
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+github.com/denisenkom/go-mssqldb v0.0.0-20191124224453-732737034ffd/go.mod h1:xbL0rPBG9cCiLr28tMa8zpbdarY27NDyej4t/EjAShU=
+github.com/erikstmartin/go-testdb v0.0.0-20160219214506-8d10e4a1bae5 h1:Yzb9+7DPaBjB8zlTR87/ElzFsnQfuHnVUVqpZZIcV5Y=
+github.com/erikstmartin/go-testdb v0.0.0-20160219214506-8d10e4a1bae5/go.mod h1:a2zkGnVExMxdzMo3M0Hi/3sEU+cWnZpSni0O6/Yb/P0=
+github.com/go-sql-driver/mysql v1.4.1 h1:g24URVg0OFbNUTx9qqY1IRZ9D9z3iPyi5zKhQZpNwpA=
+github.com/go-sql-driver/mysql v1.4.1/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
+github.com/golang-sql/civil v0.0.0-20190719163853-cb61b32ac6fe h1:lXe2qZdvpiX5WZkZR4hgp4KJVfY3nMkvmwbVkpv1rVY=
+github.com/golang-sql/civil v0.0.0-20190719163853-cb61b32ac6fe/go.mod h1:8vg3r2VgvsThLBIFL93Qb5yWzgyZWhEmBwUJWevAkK0=
+github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/jinzhu/gorm v1.9.12 h1:Drgk1clyWT9t9ERbzHza6Mj/8FY/CqMyVzOiHviMo6Q=
+github.com/jinzhu/gorm v1.9.12/go.mod h1:vhTjlKSJUTWNtcbQtrMBFCxy7eXTzeCAzfL5fBZT/Qs=
+github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
+github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
+github.com/jinzhu/now v1.0.1 h1:HjfetcXq097iXP0uoPCdnM4Efp5/9MsM0/M+XOTeR3M=
+github.com/jinzhu/now v1.0.1/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
+github.com/lib/pq v1.1.1 h1:sJZmqHoEaY7f+NPP8pgLB/WxulyR3fewgCM2qaSlBb4=
+github.com/lib/pq v1.1.1/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
+github.com/mattn/go-sqlite3 v2.0.1+incompatible h1:xQ15muvnzGBHpIpdrNi1DA5x0+TcBZzsIDwmw9uTHzw=
+github.com/mattn/go-sqlite3 v2.0.1+incompatible/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20190325154230-a5d413f7728c/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20191205180655-e7c4368fe9dd h1:GGJVjV8waZKRHrgwvtH66z9ZGVurTD1MT0n1Bb+q4aM=
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+golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+google.golang.org/appengine v1.4.0 h1:/wp5JvzpHIxhs/dumFmF7BXTf3Z+dd4uXta4kVyO508=
+google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=

internal/database/database.go

@@ -0,0 +1,34 @@
+package database
+
+import (
+	"github.com/jinzhu/gorm"
+
+	// SQLite dialect for gorm
+	_ "github.com/jinzhu/gorm/dialects/sqlite"
+)
+
+// Betriebsstelle defines the database model of the Betriebsstelle table
+type Betriebsstelle struct {
+	gorm.Model
+	Code string `gorm:"unique_index"`
+	Name string
+}
+
+// Db is the GORM database handle
+var Db *gorm.DB
+
+// Open opens the database connection with given dialect and connection string
+func Open(dialect string, connection string) (err error) {
+	Db, err = gorm.Open(dialect, connection)
+	if err != nil {
+		return err
+	}
+	Db.AutoMigrate(&Betriebsstelle{})
+	return nil
+}
+
+// Close closes the GORM database handle
+func Close() {
+	Db.Close()
+	Db = nil
+}

internal/database/database_test.go

@@ -0,0 +1,26 @@
+package database
+
+import (
+	"testing"
+)
+
+func TestOpenWrongDialect(t *testing.T) {
+	err := Open("nonexistent", ":memory:")
+	if err == nil {
+		t.Error("Expected error (invalid driver), got none")
+	}
+}
+
+func TestOpen(t *testing.T) {
+	err := Open("sqlite3", ":memory:")
+	if err != nil {
+		t.Fatalf("Cannot open database, error: %+v", err)
+	}
+}
+
+func TestClose(t *testing.T) {
+	Close()
+	if Db != nil {
+		t.Error("Database object not nil after closing")
+	}
+}

tools/csvimport/main.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	"flag"
+	"log"
+
+	"git.1750studios.com/ToddShepard/DB640/internal/csvparser"
+	"git.1750studios.com/ToddShepard/DB640/internal/database"
+)
+
+func main() {
+	input := flag.String("i", "", "Specifies CSV input file")
+	dialect := flag.String("d", "sqlite3", "Dialect for the database connection")
+	connection := flag.String("c", "./csvfile.db", "Connection string for the database connection")
+	flag.Parse()
+	if *input == "" {
+		log.Fatalf("Please specify the input file!")
+	}
+	err := database.Open(*dialect, *connection)
+	if err != nil {
+		log.Fatalf("Could not connect to database, error: %+v", err)
+	}
+	lines, err := csvparser.ParseFile(*input)
+	if err != nil {
+		log.Fatalf("Could not parse file, error: %+v", err)
+	}
+	for _, line := range lines {
+		database.Db.Create(&database.Betriebsstelle{Code: line.Code, Name: line.Name})
+		log.Printf("Inserted %s with name %s into database!", line.Code, line.Name)
+	}
+	database.Close()
+}