107 lines
2.6 KiB
Go
107 lines
2.6 KiB
Go
package repos
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/*
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Copyright (C) 2022 Rawley Fowler
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.Rawley Fowler, 2022
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*/
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import (
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"errors"
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"github.com/rawleyfowler/rawleydotxyz/models"
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"github.com/rawleyfowler/rawleydotxyz/utils"
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"gorm.io/gorm"
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)
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type BlogRepo struct {
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DB *gorm.DB
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}
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func NewBlogRepo(dsnPath string) *BlogRepo {
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b := BlogRepo{}
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var err error
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b.DB, err = utils.CreateDatabase(utils.LoadDSN(dsnPath))
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if err != nil {
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panic(err)
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}
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b.DB.AutoMigrate(&models.BlogPost{})
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return &b
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}
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func (b *BlogRepo) CreateBlogPost(p *models.BlogPost) error {
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if p == nil {
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return errors.New("Blog post must not be nil")
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}
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if p.Title == "" ||
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p.Content == "" ||
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p.Url == "" {
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return errors.New("Blog posts must be fully formed")
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}
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err := b.DB.Table("blog_posts").Create(p).Error
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if err != nil {
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return err
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}
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return nil
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}
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func (b *BlogRepo) GetBlogByUrl(url string) (*models.BlogPost, error) {
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if url == "" {
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return nil, errors.New("Cannot query by empty value")
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}
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var post models.BlogPost
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err := b.DB.Table("blog_posts").Where(&models.BlogPost{Url: url}).Scan(&post).Error
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if err != nil {
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return nil, err
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}
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return &post, nil
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}
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func (b *BlogRepo) GetAllBlogPosts() (*[]models.BlogPost, error) {
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posts := new([]models.BlogPost)
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err := b.DB.Table("blog_posts").Order("date desc").Scan(posts).Error
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if err != nil {
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return nil, errors.New("Could not load all posts from database")
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}
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return posts, nil
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}
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func (b *BlogRepo) UpdateExistingPost(p *models.BlogPost) error {
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if p == nil {
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return errors.New("Cannot update with nil value for post")
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}
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if p.Url == "" {
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return errors.New("Url must exist to update a blog post record")
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}
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err := b.DB.Table("blog_posts").Where(&models.BlogPost{Url: p.Url}).Save(p).Error
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if err != nil {
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return err
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}
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return nil
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}
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func (b *BlogRepo) DeleteExistingPost(p *models.BlogPost) error {
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if p == nil {
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return errors.New("Cannot delete with nil value for post")
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}
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if p.Url == "" {
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return errors.New("Url must exist to delete a blog post record")
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}
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err := b.DB.Table("blog_posts").Delete(p).Error
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if err != nil {
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return err
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}
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return nil
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}
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