wip migrate to db

scripts/create_mariadb.sh

+#!/bin/bash
+docker run -d -p 3306:3306 --name mariadb -e MYSQL_ROOT_PASSWORD=root -e MYSQL_DATABASE=myaktion mariadb:10.5
\ No newline at end of file

scripts/delete_mariadb.sh

+#!/bin/bash
+docker kill database && docker rm database
\ No newline at end of file

src/myaktion/db/db.go

+package db
+
+import (
+	"fmt"
+	"os"
+
+	log "github.com/sirupsen/logrus"
+	"gitlab.reutlingen-university.de/yesildas/myaktion-go/src/myaktion/model"
+	"gorm.io/driver/mysql"
+	"gorm.io/gorm"
+)
+
+var DB *gorm.DB
+
+func init() {
+	// init database
+	dsn := fmt.Sprintf("root:root@tcp(%s)/myaktion?charset=utf8&parseTime=True&loc=Local", os.Getenv("DB_CONNECT"))
+	log.Info("Using DSN for DB:", dsn)
+	var err error
+	DB, err = gorm.Open(mysql.Open(dsn), &gorm.Config{})
+	if err != nil {
+		panic("failed to connect to database")
+	}
+	log.Info("Starting automatic migrations")
+	if err := DB.Debug().AutoMigrate(&model.Campaign{}); err != nil {
+		panic(err)
+	}
+	if err := DB.Debug().AutoMigrate(&model.Donation{}); err != nil {
+		panic(err)
+	}
+	log.Info("Automatic migrations finished")
+}

src/myaktion/go.mod

@@ -5,6 +5,13 @@ go 1.20
 require (
 	github.com/gorilla/mux v1.8.0
 	github.com/sirupsen/logrus v1.9.0
+	gorm.io/driver/mysql v1.5.0
+	gorm.io/gorm v1.25.1
 )
 
-require golang.org/x/sys v0.7.0 // indirect
+require (
+	github.com/go-sql-driver/mysql v1.7.1 // indirect
+	github.com/jinzhu/inflection v1.0.0 // indirect
+	github.com/jinzhu/now v1.1.5 // indirect
+	golang.org/x/sys v0.7.0 // indirect
+)

src/myaktion/go.sum

 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/go-sql-driver/mysql v1.7.0/go.mod h1:OXbVy3sEdcQ2Doequ6Z5BW6fXNQTmx+9S1MCJN5yJMI=
+github.com/go-sql-driver/mysql v1.7.1 h1:lUIinVbN1DY0xBg0eMOzmmtGoHwWBbvnWubQUrtU8EI=
+github.com/go-sql-driver/mysql v1.7.1/go.mod h1:OXbVy3sEdcQ2Doequ6Z5BW6fXNQTmx+9S1MCJN5yJMI=
 github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
 github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
+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 v1.1.5 h1:/o9tlHleP7gOFmsnYNz3RGnqzefHA47wQpKrrdTIwXQ=
+github.com/jinzhu/now v1.1.5/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/sirupsen/logrus v1.9.0 h1:trlNQbNUG3OdDrDil03MCb1H2o9nJ1x4/5LYw7byDE0=
@@ -16,3 +23,8 @@ golang.org/x/sys v0.7.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gorm.io/driver/mysql v1.5.0 h1:6hSAT5QcyIaty0jfnff0z0CLDjyRgZ8mlMHLqSt7uXM=
+gorm.io/driver/mysql v1.5.0/go.mod h1:FFla/fJuCvyTi7rJQd27qlNX2v3L6deTR1GgTjSOLPo=
+gorm.io/gorm v1.24.7-0.20230306060331-85eaf9eeda11/go.mod h1:L4uxeKpfBml98NYqVqwAdmV1a2nBtAec/cf3fpucW/k=
+gorm.io/gorm v1.25.1 h1:nsSALe5Pr+cM3V1qwwQ7rOkw+6UeLrX5O4v3llhHa64=
+gorm.io/gorm v1.25.1/go.mod h1:L4uxeKpfBml98NYqVqwAdmV1a2nBtAec/cf3fpucW/k=

src/myaktion/model/account.go

 package model
 
 type Account struct {
-	Name     string `json:"name"`
-	BankName string `json:"bankName"`
-	Number   string `json:"number"`
+	Name     string `json:"name" gorm:"notNull"`
+	BankName string `json:"bankName" gorm:"notNull"`
+	Number   string `json:"number" gorm:"notNull"`
 }

src/myaktion/model/campaign.go

 package model
 
 type Campaign struct {
-	ID                 uint       `json:"id"`
-	Name               string     `json:"name"`
-	OrganizerName      string     `json:"organizerName"`
-	TargetAmount       float64    `json:"targetAmount"`
-	DonationMinimum    float64    `json:"donationMinimum"`
-	AmountDonatedSoFar float64    `json:"amountDonatedSoFar"`
-	Account            Account    `json:"account"`
-	Donations          []Donation `json:"donations"`
+	ID                 uint       `json:"id" gorm:"primaryKey"`
+	Name               string     `json:"name" gorm:"notNull"`
+	OrganizerName      string     `json:"organizerName" gorm:"notNull"`
+	TargetAmount       float64    `json:"targetAmount" gorm:"notNull; check:target_amount >= 10.0"`
+	DonationMinimum    float64    `json:"donationMinimum" gorm:"notNull; check:donation_minimum >= 1.0"`
+	AmountDonatedSoFar float64    `json:"amountDonatedSoFar" gorm:"-"`
+	Account            Account    `json:"account" gorm:"embedded; embeddedPrefix:account_"`
+	Donations          []Donation `json:"donations" gorm:"foreignKey: CampaignID; constraint:OnUpdate:CASCADE, OnDelete:CASCADE"`
 }

src/myaktion/model/donation.go

@@ -6,11 +6,12 @@ const (
 )
 
 type Donation struct {
-	Amount           float64 `json:"amount"`
-	DonorName        string  `json:"donorName"`
-	ReceiptRequested bool    `json:"receiptRequested"`
-	Account          Account `json:"account"`
-	Status           Status  `json:"status"`
+	CampaignID       uint    `json:"campaignId"`
+	Amount           float64 `json:"amount" gorm:"notNull"`
+	DonorName        string  `json:"donorName" gorm:"notNull"`
+	ReceiptRequested bool    `json:"receiptRequested" gorm:"notNull"`
+	Account          Account `json:"account" gorm:"embedded; embeddedPrefix:account_; foreignKey: CampaignID; constraint:OnUpdate:CASCADE, OnDelete:CASCADE"`
+	Status           Status  `json:"status" gorm:"notNull; type:ENUM('TRANSFERRED','IN_PROCESS')"`
 }
 
 type Status string

src/myaktion/service/campaign.go

@@ -5,6 +5,7 @@ import (
 
 	log "github.com/sirupsen/logrus"
 
+	"gitlab.reutlingen-university.de/yesildas/myaktion-go/src/myaktion/db"
 	"gitlab.reutlingen-university.de/yesildas/myaktion-go/src/myaktion/model"
 )
 
@@ -18,9 +19,11 @@ func init() {
 }
 
 func CreateCampaign(campaign *model.Campaign) error {
-	campaign.ID = actCampaignId
-	campaignStore[actCampaignId] = campaign
-	actCampaignId += 1
+	result := db.DB.Create(campaign)
+	if result.Error != nil {
+		log.Info("Campaign creation failed.")
+		return result.Error
+	}
 	log.Infof("Successfully stored new campaign with ID %v in database.", campaign.ID)
 	log.Tracef("Stored: %v", campaign)
 
@@ -40,8 +43,9 @@ func GetCampaign(id uint) (*model.Campaign, error) {
 
 func GetCampaigns() ([]model.Campaign, error) {
 	var campaigns []model.Campaign
-	for _, campaign := range campaignStore {
-		campaigns = append(campaigns, *campaign)
+	result := db.DB.Preload("Donations").Find(&campaigns)
+	if result.Error != nil {
+		return nil, result.Error
 	}
 	log.Infof("Successfully retrieved %d campaigns.", len(campaigns))
 	log.Tracef("Retrieved: %v", campaigns)