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58 lines
1.4 KiB
58 lines
1.4 KiB
package ormutil
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import (
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"github.com/OpenIMSDK/Open-IM-Server/pkg/errs"
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"gorm.io/gorm"
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)
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func GormPage[E any](db *gorm.DB, pageNumber, showNumber int32) (uint32, []*E, error) {
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var count int64
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var model E
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if err := db.Model(&model).Count(&count).Error; err != nil {
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return 0, nil, errs.Wrap(err)
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}
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var es []*E
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if err := db.Limit(int(showNumber)).Offset(int(pageNumber * showNumber)).Find(&es).Error; err != nil {
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return 0, nil, errs.Wrap(err)
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}
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return uint32(count), es, nil
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}
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func GormSearch[E any](db *gorm.DB, fields []string, value string, pageNumber, showNumber int32) (uint32, []*E, error) {
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if len(fields) > 0 && value != "" {
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value = "%" + value + "%"
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if len(fields) == 1 {
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db = db.Where(fields[0]+" like ?", value)
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} else {
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t := db
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for _, field := range fields {
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t = t.Or(field+" like ?", value)
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}
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db = db.Where(t)
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}
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}
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return GormPage[E](db, pageNumber, showNumber)
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}
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func GormIn[E any](db **gorm.DB, field string, es []E) {
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if len(es) == 0 {
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return
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}
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*db = (*db).Where(field+" in (?)", es)
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}
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func MapCount(db *gorm.DB, field string) (map[string]uint32, error) {
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var items []struct {
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ID string `gorm:"column:id"`
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Count uint32 `gorm:"column:count"`
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}
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if err := db.Select(field + " as id, count(1) as count").Group(field).Find(&items).Error; err != nil {
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return nil, errs.Wrap(err)
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}
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m := make(map[string]uint32)
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for _, item := range items {
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m[item.ID] = item.Count
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}
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return m, nil
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}
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