78 lines
1.9 KiB
Go
78 lines
1.9 KiB
Go
package services
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import (
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"app/internal/dal"
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"app/internal/database"
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"app/internal/dialogs"
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"app/internal/extras/excel"
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"app/internal/models"
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"app/internal/utils"
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"errors"
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"fmt"
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"gorm.io/gen/field"
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"gorm.io/gorm"
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)
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type PostService struct{}
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type Post = models.Post
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func (service *PostService) Create(item Post) (Post, error) {
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utils.ReplaceEmptySlicesWithNil(&item)
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err := dal.Post.Preload(field.Associations).Create(&item)
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if err != nil {
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return item, err
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}
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err = utils.AppendAssociations(database.GetInstance(), &item)
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return item, err
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}
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func (service *PostService) GetAll() ([]*Post, error) {
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var posts []*Post
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posts, err := dal.Post.Preload(field.Associations).Find()
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return posts, err
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}
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func (service *PostService) GetById(id uint) (*Post, error) {
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item, err := dal.Post.Preload(field.Associations).Where(dal.Post.Id.Eq(id)).First()
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if err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return nil, nil
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} else {
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return nil, err
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}
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}
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return item, nil
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}
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func (service *PostService) Update(item Post) (Post, error) {
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utils.ReplaceEmptySlicesWithNil(&item)
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err := dal.Post.Preload(field.Associations).Save(&item)
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if err != nil {
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return item, err
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}
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err = utils.UpdateAssociations(database.GetInstance(), &item)
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if err != nil {
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return item, err
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}
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return item, err
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}
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func (service *PostService) Delete(id uint) error {
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_, err := dal.Post.Unscoped().Where(dal.Post.Id.Eq(id)).Delete()
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return err
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}
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func (service *PostService) Count() (int64, error) {
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amount, err := dal.Post.Count()
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return amount, err
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}
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func (service *PostService) ExportToExcel() {
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exporter := excel.Exporter[Post]{
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SheetName: "Посты",
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Entity: Post{},
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Provider: service.GetAll,
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}
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err := excel.ExportEntitiesToSpreadsheet("report.xlsx", exporter)
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if err != nil {
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dialogs.ErrorDialog("Ошибка экспорта", fmt.Sprintf("Ошибка при экспорте данных: %s", err))
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}
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}
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