58 lines
1.2 KiB
Go
58 lines
1.2 KiB
Go
package db
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import (
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"fmt"
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"log"
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"os"
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"gorm.io/driver/sqlite"
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"gorm.io/gorm"
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"git.artlef.fr/PersonalLibraryManager/internal/model"
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)
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func Initdb(databaseDir string, demoDataPath string) *gorm.DB {
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createDbFolderIfMissing(databaseDir)
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db, err := gorm.Open(
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sqlite.Open(
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fmt.Sprintf(
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"%s/plm.db", databaseDir)), &gorm.Config{})
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if err != nil {
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log.Fatal(err)
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}
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// Migrate the schema
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db.AutoMigrate(&model.Book{})
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var book model.Book
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queryResult := db.Limit(1).Find(&book)
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if queryResult.RowsAffected == 0 && demoDataPath != "" {
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migrateSchema(db, demoDataPath)
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}
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return db
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}
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func migrateSchema(db *gorm.DB, demoDataPath string) {
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log.Printf("Loading demo data file %s\n", demoDataPath)
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data, err := os.ReadFile(demoDataPath)
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if err != nil {
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log.Fatal(err)
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}
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db.Exec(string(data))
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}
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func createDbFolderIfMissing(databaseDir string) {
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_, openFileErr := os.Open(databaseDir)
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if os.IsNotExist(openFileErr) {
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createNonExistingDbFolder(databaseDir)
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} else if openFileErr != nil {
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log.Fatal(openFileErr)
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}
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}
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func createNonExistingDbFolder(databaseDir string) {
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log.Printf("Creating missing folder %s\n", databaseDir)
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err := os.MkdirAll(databaseDir, 0700)
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if err != nil {
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log.Fatal(err)
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}
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}
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