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db.go
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db.go
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package uadmin
import (
"database/sql"
"fmt"
"os"
"reflect"
"strconv"
"strings"
"gorm.io/gorm"
//_ "github.com/jinzhu/gorm/dialects/mssql"
// Enable MYSQL
"gorm.io/driver/mysql"
"gorm.io/gorm/logger"
// Enable PostgreSQL
"gorm.io/driver/postgres"
"encoding/json"
"io/ioutil"
"net/http"
"time"
// Enable SQLLite
"github.com/uadmin/uadmin/colors"
"gorm.io/driver/sqlite"
"github.com/thlib/go-timezone-local/tzlocal"
)
var db *gorm.DB
var sqlDialect = map[string]map[string]string{
"mysql": {
"createM2MTable": "CREATE TABLE `{TABLE1}_{TABLE2}` (`table1_id` int(10) unsigned NOT NULL, `table2_id` int(10) unsigned NOT NULL, PRIMARY KEY (`table1_id`,`table2_id`)) ENGINE=InnoDB DEFAULT CHARSET=utf8;",
"selectM2M": "SELECT `table2_id` FROM `{TABLE1}_{TABLE2}` WHERE table1_id=?;",
"deleteM2M": "DELETE FROM `{TABLE1}_{TABLE2}` WHERE `table1_id`=?;",
"insertM2M": "INSERT INTO `{TABLE1}_{TABLE2}` VALUES (?, ?);",
"selectM2MT2": "SELECT DISTINCT `table1_id` FROM `{TABLE1}_{TABLE2}` WHERE table2_id IN (?);",
},
"postgres": {
"createM2MTable": `CREATE TABLE "{TABLE1}_{TABLE2}" ("table1_id" BIGINT NOT NULL, "table2_id" BIGINT NOT NULL, PRIMARY KEY ("table1_id","table2_id"))`,
"selectM2M": `SELECT "table2_id" FROM "{TABLE1}_{TABLE2}" WHERE table1_id=?;`,
"deleteM2M": `DELETE FROM "{TABLE1}_{TABLE2}" WHERE "table1_id"=?;`,
"insertM2M": `INSERT INTO "{TABLE1}_{TABLE2}" VALUES (?, ?);`,
"selectM2MT2": "SELECT DISTINCT `table1_id` FROM `{TABLE1}_{TABLE2}` WHERE table2_id IN (?);",
},
"sqlite": {
//"createM2MTable": "CREATE TABLE `{TABLE1}_{TABLE2}` (`{TABLE1}_id` INTEGER NOT NULL,`{TABLE2}_id` INTEGER NOT NULL, PRIMARY KEY(`{TABLE1}_id`,`{TABLE2}_id`));",
"createM2MTable": "CREATE TABLE `{TABLE1}_{TABLE2}` (`table1_id` INTEGER NOT NULL,`table2_id` INTEGER NOT NULL, PRIMARY KEY(`table1_id`,`table2_id`));",
"selectM2M": "SELECT `table2_id` FROM `{TABLE1}_{TABLE2}` WHERE table1_id=?;",
"deleteM2M": "DELETE FROM `{TABLE1}_{TABLE2}` WHERE `table1_id`=?;",
"insertM2M": "INSERT INTO `{TABLE1}_{TABLE2}` VALUES (?, ?);",
"selectM2MT2": "SELECT DISTINCT `table1_id` FROM `{TABLE1}_{TABLE2}` WHERE table2_id IN (?);",
},
}
// Database is the active Database settings
var Database *DBSettings
var dbOK = false
// DBSettings !
type DBSettings struct {
Type string `json:"type"` // sqlite, mysql, postgres
Name string `json:"name"` // File/DB name
User string `json:"user"`
Password string `json:"password"`
Host string `json:"host"`
Port int `json:"port"`
Timezone string `json:"timezone"`
}
// initializeDB opens the connection the DB
func initializeDB(a ...interface{}) {
// Open the connection the the DB
db = GetDB()
// Migrate schema
for i, model := range a {
Trail(INFO, "Initializing DB: [%s%d/%d%s]", colors.FGGreenB, i+1, len(a), colors.FGNormal)
err := db.AutoMigrate(model)
if err != nil {
Trail(ERROR, "Unable to migrate schema of %s. %s", reflect.TypeOf(model).Name(), err)
}
err = customMigration(model)
if err != nil {
Trail(ERROR, "Unable to custom migrate schema of %s. %s", reflect.TypeOf(model).Name(), err)
}
}
Trail(OK, "Initializing DB: [%s%d/%d%s]", colors.FGGreenB, len(a), len(a), colors.FGNormal)
db.AllowGlobalUpdate = true
}
func customMigration(a interface{}) (err error) {
t := reflect.TypeOf(a)
for i := 0; i < t.NumField(); i++ {
// Check if there is any m2m fields
if t.Field(i).Type.Kind() == reflect.Slice && t.Field(i).Type.Elem().Kind() == reflect.Struct {
table1 := strings.ToLower(t.Name())
table2 := strings.ToLower(t.Field(i).Type.Elem().Name())
//Check if the table is created for the m2m field
if !db.Migrator().HasTable(table1 + "_" + table2) {
sql := sqlDialect[Database.Type]["createM2MTable"]
sql = strings.Replace(sql, "{TABLE1}", table1, -1)
sql = strings.Replace(sql, "{TABLE2}", table2, -1)
err = db.Exec(sql).Error
if err != nil {
Trail(ERROR, "Unable to create M2M table. %s", err)
Trail(ERROR, sql)
return err
}
}
}
}
return err
}
// GetDB returns a pointer to the DB
func GetDB() *gorm.DB {
if db != nil {
return db
}
var err error
// Check if there is a database config file
if Database == nil {
buf, err := ioutil.ReadFile(".database")
if err == nil {
err = json.Unmarshal(buf, &Database)
if err != nil {
Trail(WARNING, ".database file is not a valid json file. %s", err)
}
}
// Get environment variables for db settings
if v := os.Getenv("UADMIN_DB_TYPE"); v != "" {
if Database == nil {
Database = &DBSettings{}
}
Database.Type = v
}
if v := os.Getenv("UADMIN_DB_HOST"); v != "" {
Database.Host = v
if Database == nil {
Database = &DBSettings{}
}
}
if v := os.Getenv("UADMIN_DB_PORT"); v != "" {
if Database == nil {
Database = &DBSettings{}
}
port, err := strconv.ParseInt(v, 10, 64)
if err == nil {
Database.Port = int(port)
} else {
Trail(WARNING, "Environment vaiable UADMIN_DB_PORT should be a number but got (%s)", v)
}
}
if v := os.Getenv("UADMIN_DB_NAME"); v != "" {
if Database == nil {
Database = &DBSettings{}
}
Database.Name = v
}
if v := os.Getenv("UADMIN_DB_USER"); v != "" {
if Database == nil {
Database = &DBSettings{}
}
Database.User = v
}
if v := os.Getenv("UADMIN_DB_PASSWORD"); v != "" {
if Database == nil {
Database = &DBSettings{}
}
Database.Password = v
}
}
if Database == nil {
Database = &DBSettings{
Type: "sqlite",
}
}
if strings.ToLower(Database.Type) == "sqlite" {
dbName := Database.Name
if dbName == "" {
dbName = "uadmin.db"
}
db, err = gorm.Open(sqlite.Open(dbName), &gorm.Config{
Logger: func() logger.Interface {
if DebugDB {
return logger.Default.LogMode(logger.Info)
}
return logger.Default.LogMode(logger.Silent)
}(),
})
} else if strings.ToLower(Database.Type) == "mysql" {
if Database.Host == "" || Database.Host == "localhost" {
Database.Host = "127.0.0.1"
}
if Database.Port == 0 {
Database.Port = 3306
}
if Database.User == "" {
Database.User = "root"
}
credential := Database.User
if Database.Password != "" {
credential = fmt.Sprintf("%s:%s", Database.User, Database.Password)
}
tz := "Local"
if Database.Timezone != "" {
tz = Database.Timezone
}
dsn := fmt.Sprintf("%s@(%s:%d)/%s?charset=utf8mb4&parseTime=True&loc=%s",
credential,
Database.Host,
Database.Port,
Database.Name,
tz,
)
db, err = gorm.Open(mysql.Open(dsn), &gorm.Config{
Logger: func() logger.Interface {
if DebugDB {
return logger.Default.LogMode(logger.Info)
}
return logger.Default.LogMode(logger.Silent)
}(),
DisableForeignKeyConstraintWhenMigrating: true,
})
// Check if the error is DB doesn't exist and create it
if err != nil && err.Error() == "Error 1049: Unknown database '"+Database.Name+"'" {
err = createDB()
if err == nil {
db, err = gorm.Open(mysql.Open(dsn), &gorm.Config{
Logger: func() logger.Interface {
if DebugDB {
return logger.Default.LogMode(logger.Info)
}
return logger.Default.LogMode(logger.Silent)
}(),
DisableForeignKeyConstraintWhenMigrating: true,
})
}
}
// fail if we could not connect to DB
if err != nil {
Trail(ERROR, "Unable to connect to db. %s", err)
os.Exit(2)
}
// Temp solution for 0 foreign key
err = db.Exec("SET PERSIST FOREIGN_KEY_CHECKS=0;").Error
if err != nil {
err = db.Exec("SET GLOBAL FOREIGN_KEY_CHECKS=0;").Error
if err != nil {
err = db.Exec("SET FOREIGN_KEY_CHECKS=0;").Error
if err != nil {
Trail(ERROR, "Unable to run FOREIGN_KEY_CHECKS=0. %s", err)
}
}
}
} else if strings.ToLower(Database.Type) == "postgres" {
if Database.Host == "" || Database.Host == "localhost" {
Database.Host = "127.0.0.1"
}
if Database.Port == 0 {
Database.Port = 5432
}
if Database.User == "" {
Database.User = "postgres"
}
tz, _ := tzlocal.RuntimeTZ()
if Database.Timezone != "" {
tz = Database.Timezone
}
dsn := fmt.Sprintf("host=%s user=%s password=%s dbname=%s port=%d sslmode=disable TimeZone=%s",
Database.Host,
Database.User,
Database.Password,
Database.Name,
Database.Port,
tz,
)
db, err = gorm.Open(postgres.Open(dsn), &gorm.Config{
Logger: func() logger.Interface {
if DebugDB {
return logger.Default.LogMode(logger.Info)
}
return logger.Default.LogMode(logger.Silent)
}(),
DisableForeignKeyConstraintWhenMigrating: true,
})
if err != nil && strings.HasSuffix(err.Error(), "server error (FATAL: database \""+Database.Name+"\" does not exist (SQLSTATE 3D000))") {
err = createDB()
if err == nil {
db, err = gorm.Open(postgres.Open(dsn), &gorm.Config{
Logger: func() logger.Interface {
if DebugDB {
return logger.Default.LogMode(logger.Info)
}
return logger.Default.LogMode(logger.Silent)
}(),
DisableForeignKeyConstraintWhenMigrating: true,
})
}
}
// fail if we could not connect to DB
if err != nil {
Trail(ERROR, "Unable to connect to db. %s", err)
os.Exit(2)
}
}
if err != nil {
Trail(ERROR, "unable to connect to DB. %s", err)
db.Error = fmt.Errorf("unable to connect to DB. %s", err)
}
return db
}
func createDB() error {
if Database.Type == "mysql" {
credential := Database.User
if Database.Password != "" {
credential = fmt.Sprintf("%s:%s", Database.User, Database.Password)
}
dsn := fmt.Sprintf("%s@(%s:%d)/?charset=utf8mb4&parseTime=True&loc=Local",
credential,
Database.Host,
Database.Port,
)
db, err := gorm.Open(mysql.Open(dsn), &gorm.Config{
Logger: func() logger.Interface {
if DebugDB {
return logger.Default.LogMode(logger.Info)
}
return logger.Default.LogMode(logger.Silent)
}(),
})
if err != nil {
return err
}
Trail(INFO, "Database doens't exist, creating a new database")
db = db.Exec("CREATE SCHEMA `" + Database.Name + "` DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci")
if db.Error != nil {
return fmt.Errorf(db.Error.Error())
}
return nil
} else if Database.Type == "postgres" {
if Database.Host == "" || Database.Host == "localhost" {
Database.Host = "127.0.0.1"
}
if Database.Port == 0 {
Database.Port = 5432
}
if Database.User == "" {
Database.User = "postgres"
}
tz, _ := tzlocal.RuntimeTZ()
if Database.Timezone != "" {
tz = Database.Timezone
}
dsn := fmt.Sprintf("host=%s user=%s password=%s dbname=postgres port=%d sslmode=disable TimeZone=%s",
Database.Host,
Database.User,
Database.Password,
Database.Port,
tz,
)
db, err := gorm.Open(postgres.Open(dsn), &gorm.Config{
Logger: func() logger.Interface {
if DebugDB {
return logger.Default.LogMode(logger.Info)
}
return logger.Default.LogMode(logger.Silent)
}(),
DisableForeignKeyConstraintWhenMigrating: true,
})
if err != nil {
return err
}
Trail(INFO, "Database doens't exist, creating a new database")
db = db.Exec("CREATE DATABASE " + Database.Name + " WITH OWNER = " + Database.User + " ENCODING = 'UTF8' CONNECTION LIMIT = -1 IS_TEMPLATE = False;")
if db.Error != nil {
return fmt.Errorf(db.Error.Error())
}
return nil
}
return fmt.Errorf("CreateDB: Unknown database type " + Database.Type)
}
// ClearDB clears the db object
func ClearDB() {
db = nil
}
// All fetches all object in the database
func All(a interface{}) (err error) {
TimeMetric("uadmin/db/duration", 1000, func() {
err = db.Find(a).Error
for fmt.Sprint(err) == "database is locked" {
time.Sleep(time.Millisecond * 100)
err = db.Find(a).Error
}
})
if err != nil {
Trail(ERROR, "DB error in All(%v). %s", getModelName(a), err.Error())
return err
}
decryptArray(a)
return nil
}
// Save saves the object in the database
func Save(a interface{}) (err error) {
encryptRecord(a)
TimeMetric("uadmin/db/duration", 1000, func() {
err = db.Save(a).Error
for fmt.Sprint(err) == "database is locked" {
time.Sleep(time.Millisecond * 100)
err = db.Save(a).Error
}
})
if err != nil {
Trail(ERROR, "DB error in Save(%v). %s", getModelName(a), err.Error())
return err
}
err = customSave(a)
if err != nil {
Trail(ERROR, "DB error in customSave(%v). %s", getModelName(a), err.Error())
return err
}
return nil
}
func customSave(m interface{}) (err error) {
a := m
t := reflect.TypeOf(a)
if t.Kind() == reflect.Ptr {
a = reflect.ValueOf(m).Elem().Interface()
t = reflect.TypeOf(a)
}
value := reflect.ValueOf(a)
for i := 0; i < t.NumField(); i++ {
// Check if there is any m2m fields
if t.Field(i).Type.Kind() == reflect.Slice && t.Field(i).Type.Elem().Kind() == reflect.Struct {
table1 := strings.ToLower(t.Name())
table2 := strings.ToLower(t.Field(i).Type.Elem().Name())
// Delete existing records
sql := sqlDialect[Database.Type]["deleteM2M"]
sql = strings.Replace(sql, "{TABLE1}", table1, -1)
sql = strings.Replace(sql, "{TABLE2}", table2, -1)
TimeMetric("uadmin/db/duration", 1000, func() {
err = db.Exec(sql, GetID(value)).Error
for fmt.Sprint(err) == "database is locked" {
time.Sleep(time.Millisecond * 100)
err = db.Exec(sql, GetID(value)).Error
}
})
if err != nil {
Trail(ERROR, "Unable to delete m2m records. %s", err)
Trail(ERROR, sql)
return err
}
// Insert records
for index := 0; index < value.Field(i).Len(); index++ {
sql := sqlDialect[Database.Type]["insertM2M"]
sql = strings.Replace(sql, "{TABLE1}", table1, -1)
sql = strings.Replace(sql, "{TABLE2}", table2, -1)
TimeMetric("uadmin/db/duration", 1000, func() {
err = db.Exec(sql, GetID(value), GetID(value.Field(i).Index(index))).Error
for fmt.Sprint(err) == "database is locked" {
time.Sleep(time.Millisecond * 100)
err = db.Exec(sql, GetID(value), GetID(value.Field(i).Index(index))).Error
}
})
if err != nil {
Trail(ERROR, "Unable to insert m2m records. %s", err)
Trail(ERROR, sql)
return err
}
}
}
}
return nil
}
// Get fetches the first record from the database matching query and args
func Get(a interface{}, query interface{}, args ...interface{}) (err error) {
if val, ok := query.(string); ok {
query = fixQueryEnclosure(val)
}
TimeMetric("uadmin/db/duration", 1000, func() {
err = db.Where(query, args...).First(a).Error
for fmt.Sprint(err) == "database is locked" {
time.Sleep(time.Millisecond * 100)
err = db.Where(query, args...).First(a).Error
}
})
if err != nil {
if err.Error() != "record not found" {
Trail(ERROR, "DB error in Get(%s)-(%v). %s", getModelName(a), a, err.Error())
}
return err
}
err = customGet(a)
if err != nil {
Trail(ERROR, "DB error in customGet(%v). %s", getModelName(a), err.Error())
return err
}
decryptRecord(a)
return nil
}
// Get fetches the first record from the database matching query and args with sorting
func GetTable(table string, a interface{}, query interface{}, args ...interface{}) (err error) {
if val, ok := query.(string); ok {
query = fixQueryEnclosure(val)
}
TimeMetric("uadmin/db/duration", 1000, func() {
err = db.Table(table).Where(query, args...).First(a).Error
for fmt.Sprint(err) == "database is locked" {
time.Sleep(time.Millisecond * 100)
err = db.Table(table).Where(query, args...).First(a).Error
}
})
if err != nil {
if err.Error() != "record not found" {
Trail(ERROR, "DB error in GetSorted(%s)-(%v). %s", getModelName(a), a, err.Error())
}
return err
}
err = customGet(a)
if err != nil {
Trail(ERROR, "DB error in customGet(%v). %s", getModelName(a), err.Error())
return err
}
decryptRecord(a)
return nil
}
// Get fetches the first record from the database matching query and args with sorting
func GetSorted(order string, asc bool, a interface{}, query interface{}, args ...interface{}) (err error) {
if val, ok := query.(string); ok {
query = fixQueryEnclosure(val)
}
if order != "" {
orderby := " desc"
if asc {
orderby = " asc"
}
order = columnEnclosure() + order + columnEnclosure()
orderby += " "
order += orderby
} else {
order = "id desc"
}
TimeMetric("uadmin/db/duration", 1000, func() {
err = db.Where(query, args...).Order(order).First(a).Error
for fmt.Sprint(err) == "database is locked" {
time.Sleep(time.Millisecond * 100)
err = db.Where(query, args...).Order(order).First(a).Error
}
})
if err != nil {
if err.Error() != "record not found" {
Trail(ERROR, "DB error in GetSorted(%s)-(%v). %s", getModelName(a), a, err.Error())
}
return err
}
err = customGet(a)
if err != nil {
Trail(ERROR, "DB error in customGet(%v). %s", getModelName(a), err.Error())
return err
}
decryptRecord(a)
return nil
}
// Get fetches the first record from the database matching query and args with sorting
func GetSortedTable(table string, order string, asc bool, a interface{}, query interface{}, args ...interface{}) (err error) {
if val, ok := query.(string); ok {
query = fixQueryEnclosure(val)
}
if order != "" {
orderby := " desc"
if asc {
orderby = " asc"
}
order = columnEnclosure() + order + columnEnclosure()
orderby += " "
order += orderby
} else {
order = "id desc"
}
TimeMetric("uadmin/db/duration", 1000, func() {
err = db.Table(table).Where(query, args...).Order(order).First(a).Error
for fmt.Sprint(err) == "database is locked" {
time.Sleep(time.Millisecond * 100)
err = db.Table(table).Where(query, args...).Order(order).First(a).Error
}
})
if err != nil {
if err.Error() != "record not found" {
Trail(ERROR, "DB error in GetSorted(%s)-(%v). %s", getModelName(a), a, err.Error())
}
return err
}
err = customGet(a)
if err != nil {
Trail(ERROR, "DB error in customGet(%v). %s", getModelName(a), err.Error())
return err
}
decryptRecord(a)
return nil
}
// Get fetches the first record from the database matching query and args with sorting
func GetValueSorted(table string, column string, order string, asc bool, a interface{}, query interface{}, args ...interface{}) (err error) {
if val, ok := query.(string); ok {
query = fixQueryEnclosure(val)
}
if order != "" {
orderby := " desc"
if asc {
orderby = " asc"
}
order = columnEnclosure() + order + columnEnclosure()
orderby += " "
order += orderby
} else {
order = "id desc"
}
TimeMetric("uadmin/db/duration", 1000, func() {
err = db.Table(table).Where(query, args...).Order(order).Limit(1).Pluck(column, a).Error
for fmt.Sprint(err) == "database is locked" {
time.Sleep(time.Millisecond * 100)
err = db.Table(table).Where(query, args...).Order(order).Limit(1).Pluck(column, a).Error
}
})
if err != nil {
if err.Error() != "record not found" {
Trail(ERROR, "DB error in GetValueSorted(%s)-(%v). %s", getModelName(a), a, err.Error())
}
return err
}
return nil
}
// GetABTest is like Get function but implements AB testing for the results
func GetABTest(r *http.Request, a interface{}, query interface{}, args ...interface{}) (err error) {
if val, ok := query.(string); ok {
query = fixQueryEnclosure(val)
}
TimeMetric("uadmin/db/duration", 1000, func() {
Get(a, query, args...)
})
// Check if there are any active A/B tests for any field in this model
abt := getABT(r)
modelName := getModelName(a)
abTestsMutex.Lock()
for k, v := range modelABTests {
if strings.HasPrefix(k, modelName+"__") && strings.HasSuffix(k, "__"+fmt.Sprint(GetID(reflect.ValueOf(a)))) {
if len(v) != 0 {
index := abt % len(v)
fName := Schema[modelName].Fields[v[index].fname].Name
// TODO: Support more data types
switch Schema[modelName].Fields[v[index].fname].Type {
case cSTRING:
reflect.ValueOf(a).Elem().FieldByName(fName).SetString(v[index].v)
case cIMAGE:
reflect.ValueOf(a).Elem().FieldByName(fName).SetString(v[index].v)
}
// Increment impressions
v[index].imp++
modelABTests[k] = v
}
}
}
abTestsMutex.Unlock()
return nil
}
// GetStringer fetches the first record from the database matching query and args
// and get only fields tagged with `stringer` tag. If no field has `stringer` tag
// then it gets all the fields
func GetStringer(a interface{}, query interface{}, args ...interface{}) (err error) {
if val, ok := query.(string); ok {
query = fixQueryEnclosure(val)
}
stringers := []string{}
modelName := getModelName(a)
for _, f := range Schema[modelName].Fields {
if f.Stringer {
stringers = append(stringers, GetDB().Config.NamingStrategy.ColumnName("", f.Name))
}
}
TimeMetric("uadmin/db/duration", 1000, func() {
if len(stringers) == 0 {
err = db.Where(query, args...).First(a).Error
for fmt.Sprint(err) == "database is locked" {
time.Sleep(time.Millisecond * 100)
err = db.Where(query, args...).First(a).Error
}
} else {
err = db.Select(stringers).Where(query, args...).First(a).Error
for fmt.Sprint(err) == "database is locked" {
time.Sleep(time.Millisecond * 100)
err = db.Select(stringers).Where(query, args...).First(a).Error
}
}
})
if err != nil {
if err.Error() != "record not found" {
Trail(ERROR, "DB error in Get(%s)-(%v). %s", getModelName(a), a, err.Error())
}
return err
}
//err = customGet(a)
if err != nil {
Trail(ERROR, "DB error in customGet(%v). %s", getModelName(a), err.Error())
return err
}
decryptRecord(a)
return nil
}
// GetForm fetches the first record from the database matching query and args
// where it selects only visible fields in the form based on given schema
func GetForm(a interface{}, s *ModelSchema, query interface{}, args ...interface{}) (err error) {
if val, ok := query.(string); ok {
query = fixQueryEnclosure(val)
}
// get a list of visible fields
columnList := []string{}
m2mList := []string{}
for _, f := range s.Fields {
if !f.Hidden {
if f.Type == cM2M {
m2mList = append(m2mList, f.ColumnName)
} else if f.Type == cFK {
columnList = append(columnList, columnEnclosure()+f.ColumnName+"_id"+columnEnclosure())
// } else if f.IsMethod {
} else {
columnList = append(columnList, columnEnclosure()+f.ColumnName+columnEnclosure())
}
}
}
TimeMetric("uadmin/db/duration", 1000, func() {
err = db.Select(columnList).Where(query, args...).First(a).Error
for fmt.Sprint(err) == "database is locked" {
time.Sleep(time.Millisecond * 100)
err = db.Select(columnList).Where(query, args...).First(a).Error
}
})
if err != nil {
if err.Error() != "record not found" {
Trail(ERROR, "DB error in Get(%s)-(%v). %s", getModelName(a), a, err.Error())
}
return err
}
err = customGet(a, m2mList...)
if err != nil {
Trail(ERROR, "DB error in customGet(%v). %s", getModelName(a), err.Error())
return err
}
decryptRecord(a)
return nil
}
func customGet(m interface{}, m2m ...string) (err error) {
a := m
t := reflect.TypeOf(a)
var ignore bool
if t.Kind() == reflect.Ptr {
a = reflect.ValueOf(m).Elem().Interface()
t = reflect.TypeOf(a)
}
value := reflect.ValueOf(a)
for i := 0; i < t.NumField(); i++ {
ignore = false
if len(m2m) != 0 {
ignore = true
for _, fName := range m2m {
if fName == t.Field(i).Name {
ignore = false
break
}
}
}
if ignore {
continue
}
// Skip private fields
if t.Field(i).Anonymous || t.Field(i).Name[0:1] != strings.ToUpper(t.Field(i).Name[0:1]) {
continue
}
// Check if there is any m2m fields
if t.Field(i).Type.Kind() == reflect.Slice && t.Field(i).Type.Elem().Kind() == reflect.Struct {
table1 := strings.ToLower(t.Name())
table2 := strings.ToLower(t.Field(i).Type.Elem().Name())
sqlSelect := sqlDialect[Database.Type]["selectM2M"]
sqlSelect = strings.Replace(sqlSelect, "{TABLE1}", table1, -1)
sqlSelect = strings.Replace(sqlSelect, "{TABLE2}", table2, -1)
var rows *sql.Rows
rows, err = db.Raw(sqlSelect, GetID(value)).Rows()
if err != nil {
Trail(ERROR, "Unable to get m2m records. %s", err)
Trail(ERROR, sqlSelect)
return err
}
defer rows.Close()
var fkID uint
tmpDst := reflect.New(reflect.SliceOf(t.Field(i).Type.Elem())).Elem()
for rows.Next() {
rows.Scan(&fkID)
tempModel := reflect.New(t.Field(i).Type.Elem()).Elem()
Get(tempModel.Addr().Interface(), "id = ?", fkID)
tmpDst = reflect.Append(tmpDst, tempModel)
}
reflect.ValueOf(m).Elem().Field(i).Set(tmpDst)
}
}
return nil
}
// Filter fetches records from the database
func Filter(a interface{}, query interface{}, args ...interface{}) (err error) {
if val, ok := query.(string); ok {
query = fixQueryEnclosure(val)
}
TimeMetric("uadmin/db/duration", 1000, func() {
err = db.Where(query, args...).Find(a).Error
for fmt.Sprint(err) == "database is locked" {
time.Sleep(time.Millisecond * 100)
err = db.Where(query, args...).Find(a).Error
}
})
if err != nil {
Trail(ERROR, "DB error in Filter(%v). %s\n", getModelName(a), err.Error())
return err
}
decryptArray(a)
return nil
}
// Filter fetches records from the database
func FilterSorted(order string, asc bool, a interface{}, query interface{}, args ...interface{}) (err error) {
if val, ok := query.(string); ok {
query = fixQueryEnclosure(val)
}
if order != "" {
orderby := " desc"
if asc {
orderby = " asc"
}
order = columnEnclosure() + order + columnEnclosure()
orderby += " "
order += orderby
} else {
order = "id desc"
}
TimeMetric("uadmin/db/duration", 1000, func() {
err = db.Where(query, args...).Order(order).Find(a).Error
for fmt.Sprint(err) == "database is locked" {
time.Sleep(time.Millisecond * 100)
err = db.Where(query, args...).Order(order).Find(a).Error
}
})
if err != nil {
Trail(ERROR, "DB error in Filter(%v). %s\n", getModelName(a), err.Error())
return err
}
decryptArray(a)
return nil
}
// Filter fetches records from the database
func FilterTable(table string, a interface{}, query interface{}, args ...interface{}) (err error) {
if val, ok := query.(string); ok {
query = fixQueryEnclosure(val)
}
TimeMetric("uadmin/db/duration", 1000, func() {
err = db.Table(table).Where(query, args...).Find(a).Error
for fmt.Sprint(err) == "database is locked" {
time.Sleep(time.Millisecond * 100)
err = db.Table(table).Where(query, args...).Find(a).Error
}
})
if err != nil {
Trail(ERROR, "DB error in Filter(%v). %s\n", getModelName(a), err.Error())
return err
}
decryptArray(a)
return nil
}
// Filter fetches records from the database
func FilterSortedTable(table string, order string, asc bool, a interface{}, query interface{}, args ...interface{}) (err error) {
if val, ok := query.(string); ok {
query = fixQueryEnclosure(val)
}
if order != "" {
orderby := " desc"
if asc {
orderby = " asc"
}
order = columnEnclosure() + order + columnEnclosure()
orderby += " "
order += orderby
} else {
order = "id desc"
}
TimeMetric("uadmin/db/duration", 1000, func() {
err = db.Table(table).Where(query, args...).Order(order).Find(a).Error
for fmt.Sprint(err) == "database is locked" {
time.Sleep(time.Millisecond * 100)
err = db.Table(table).Where(query, args...).Order(order).Find(a).Error
}
})
if err != nil {
Trail(ERROR, "DB error in Filter(%v). %s\n", getModelName(a), err.Error())
return err
}
decryptArray(a)
return nil
}
// Filter fetches records from the database
func FilterSortedValue(table string, column string, order string, asc bool, a interface{}, query interface{}, args ...interface{}) (err error) {
if val, ok := query.(string); ok {
query = fixQueryEnclosure(val)
}
if order != "" {
orderby := " desc"
if asc {
orderby = " asc"
}
order = columnEnclosure() + order + columnEnclosure()
orderby += " "
order += orderby
} else {
order = "id desc"
}
TimeMetric("uadmin/db/duration", 1000, func() {