Shioriko/pkg/services/post.go
2021-05-10 09:45:32 +07:00

100 lines
2.3 KiB
Go

package services
import (
"github.com/Damillora/Shioriko/pkg/database"
"github.com/Damillora/Shioriko/pkg/models"
"github.com/google/uuid"
)
const perPage = 20
func GetPostAll(page int) []database.Post {
var posts []database.Post
database.DB.Joins("Blob").Preload("Tags").Preload("Tags.TagType").Offset((page - 1) * perPage).Limit(20).Find(&posts)
return posts
}
func GetPostTag(page int, tagSyntax string) []database.Post {
tag, err := GetTag(tagSyntax)
if err != nil {
return []database.Post{}
}
var posts []database.Post
database.DB.Model(&tag).Joins("Blob").Preload("Tags").Preload("Tags.TagType").Offset((page - 1) * perPage).Limit(20).Association("Posts").Find(&posts)
return posts
}
func GetPost(id string) (*database.Post, error) {
var post database.Post
result := database.DB.Joins("Blob").Preload("Tags").Preload("Tags.TagType").Where("posts.id = ?", id).First(&post)
if result.Error != nil {
return nil, result.Error
}
return &post, nil
}
func CreatePost(model models.PostCreateModel) (*database.Post, error) {
tags, err := ParseTags(model.Tags)
if err != nil {
return nil, err
}
post := database.Post{
ID: uuid.NewString(),
BlobID: model.BlobID,
SourceURL: model.SourceURL,
Tags: tags,
}
result := database.DB.Create(&post)
if result.Error != nil {
return nil, result.Error
}
return &post, nil
}
func UpdatePost(id string, model models.PostUpdateModel) (*database.Post, error) {
tags, err := ParseTags(model.Tags)
if err != nil {
return nil, err
}
var post database.Post
result := database.DB.Where("id = ?", id).First(&post)
if result.Error != nil {
return nil, result.Error
}
post.SourceURL = model.SourceURL
post.Tags = tags
result = database.DB.Save(&post)
if result.Error != nil {
return nil, result.Error
}
return &post, nil
}
func CountPostPages() int {
var count int64
database.DB.Model(&database.Post{}).Count(&count)
return int(count/perPage) + 1
}
func DeletePost(id string) error {
var post database.Post
result := database.DB.Where("id = ?", id).First(&post)
if result.Error != nil {
return result.Error
}
result = database.DB.Where("id = ?", post.BlobID).Delete(&database.Blob{})
if result.Error != nil {
return result.Error
}
result = database.DB.Delete(&post)
if result.Error != nil {
return result.Error
}
return nil
}