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override identifier length for postgres #232

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merged 2 commits into from
Jan 29, 2024
Merged

override identifier length for postgres #232

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3402d39
override identifier length for postgres
alidevhere Dec 18, 2023
db1dedd
check if identifier length is set by user
alidevhere Dec 29, 2023
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22 changes: 21 additions & 1 deletion postgres.go
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,11 @@ type Config struct {
Conn gorm.ConnPool
}

var (
timeZoneMatcher = regexp.MustCompile("(time_zone|TimeZone)=(.*?)($|&| )")
defaultIdentifierLength = 63 //maximum identifier length for postgres
)

func Open(dsn string) gorm.Dialector {
return &Dialector{&Config{DSN: dsn}}
}
Expand All @@ -42,7 +47,22 @@ func (dialector Dialector) Name() string {
return "postgres"
}

var timeZoneMatcher = regexp.MustCompile("(time_zone|TimeZone)=(.*?)($|&| )")
func (dialector Dialector) Apply(config *gorm.Config) error {
var namingStartegy *schema.NamingStrategy
switch v := config.NamingStrategy.(type) {
case *schema.NamingStrategy:
namingStartegy = v
case schema.NamingStrategy:
namingStartegy = &v
case nil:
namingStartegy = &schema.NamingStrategy{}
}
if namingStartegy.IdentifierMaxLength <= 0 {
namingStartegy.IdentifierMaxLength = defaultIdentifierLength
}
config.NamingStrategy = namingStartegy
return nil
}

func (dialector Dialector) Initialize(db *gorm.DB) (err error) {
callbackConfig := &callbacks.Config{
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