node-api/apps/main.go

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package apps
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import (
"github.com/rosti-cz/apps-api/common"
)
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func init() {
db := common.GetDBConnection()
db.AutoMigrate(Label{})
db.AutoMigrate(App{})
}
// Get returns one app
func Get(name string) (*App, error) {
var app App
db := common.GetDBConnection()
err := db.First(&app).Where("name = ?", name).Error
if err != nil {
return nil, err
}
return &app, nil
}
// List returns all apps located on this node
func List() (*[]App, error) {
var apps []App
db := common.GetDBConnection()
err := db.Find(&apps).Error
if err != nil {
return nil, err
}
return &apps, nil
}
// New creates new record about application in the database
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func New(name string, SSHPort int, HTTPPort int, image string, CPU int, memory int) error {
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app := App{
Name: name,
SSHPort: SSHPort,
HTTPPort: HTTPPort,
Image: image,
CPU: CPU,
Memory: memory,
}
db := common.GetDBConnection()
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validationErrors := app.Validate()
if len(validationErrors) != 0 {
return ValidationError{
Errors: validationErrors,
}
}
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if err := db.Create(&app).Error; err != nil {
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return err
}
return nil
}
// Update changes value about app in the database
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func Update(name string, SSHPort int, HTTPPort int, image string, CPU int, memory int) (*App, error) {
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var app App
db := common.GetDBConnection()
err := db.First(&app).Where("name = ?", name).Error
if err != nil {
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return &app, err
}
// Update affected fields
if image != "" {
app.Image = image
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}
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if CPU != 0 {
app.CPU = CPU
}
if memory != 0 {
app.Memory = memory
}
// SSH port and HTTP port cannot be turned off when they are once set
if SSHPort != 0 {
app.SSHPort = SSHPort
}
// SSH port and HTTP port cannot be turned off when they are once set
if HTTPPort != 0 {
app.HTTPPort = HTTPPort
}
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validationErrors := app.Validate()
if len(validationErrors) != 0 {
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return &app, ValidationError{
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Errors: validationErrors,
}
}
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// Apply the changes
err = db.Save(&app).Error
return &app, err
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}
// Delete removes records about one app from the database
func Delete(name string) error {
db := common.GetDBConnection()
err := db.Delete(App{}).Where("name = ?", name).Error
return err
}