cialloo
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68 lines
1.8 KiB
Go
68 lines
1.8 KiB
Go
package logic
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import (
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"context"
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"database/sql"
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"fmt"
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"git.cialloo.com/CiallooWeb/Blog/app/internal/svc"
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"git.cialloo.com/CiallooWeb/Blog/app/internal/types"
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"github.com/zeromicro/go-zero/core/logx"
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)
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type EditPostLogic struct {
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logx.Logger
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ctx context.Context
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svcCtx *svc.ServiceContext
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}
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// Edit an existing blog post
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func NewEditPostLogic(ctx context.Context, svcCtx *svc.ServiceContext) *EditPostLogic {
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return &EditPostLogic{
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Logger: logx.WithContext(ctx),
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ctx: ctx,
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svcCtx: svcCtx,
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}
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}
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func (l *EditPostLogic) EditPost(req *types.EditPostReq) (resp *types.EditPostResp, err error) {
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var coverID sql.NullInt64
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// If cover image key is provided, get the file ID from files table
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if req.CoverImageKey != "" {
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query := `SELECT id FROM files WHERE file_key = $1`
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err := l.svcCtx.DB.QueryRowContext(l.ctx, query, req.CoverImageKey).Scan(&coverID.Int64)
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if err != nil {
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if err == sql.ErrNoRows {
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l.Errorf("Cover image file not found with key: %s", req.CoverImageKey)
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return nil, fmt.Errorf("cover image not found")
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}
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l.Errorf("Failed to get cover image file: %v", err)
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return nil, err
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}
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coverID.Valid = true
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}
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// Update post with updated_at timestamp
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query := `UPDATE posts SET title = $1, content = $2, cover_id = $3, updated_at = CURRENT_TIMESTAMP WHERE id = $4`
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result, err := l.svcCtx.DB.ExecContext(l.ctx, query, req.Title, req.Content, coverID, req.PostId)
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if err != nil {
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l.Errorf("Failed to update post: %v", err)
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return nil, err
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}
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// Check if post exists
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rowsAffected, err := result.RowsAffected()
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if err != nil {
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l.Errorf("Failed to get rows affected: %v", err)
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return nil, err
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}
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if rowsAffected == 0 {
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l.Errorf("Post not found with id: %s", req.PostId)
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return nil, fmt.Errorf("post not found")
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}
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return &types.EditPostResp{}, nil
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}
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