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			107 lines
		
	
	
	
		
			2.6 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			107 lines
		
	
	
	
		
			2.6 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
| package mysql
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| 
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| import (
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| 	"context"
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| 	"strings"
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| 
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| 	"github.com/pkg/errors"
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| 
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| 	storepb "github.com/usememos/memos/proto/gen/store"
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| 	"github.com/usememos/memos/store"
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| )
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| 
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| func (d *DB) UpsertReaction(ctx context.Context, upsert *store.Reaction) (*store.Reaction, error) {
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| 	fields := []string{"`creator_id`", "`content_id`", "`reaction_type`"}
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| 	placeholder := []string{"?", "?", "?"}
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| 	args := []interface{}{upsert.CreatorID, upsert.ContentID, upsert.ReactionType.String()}
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| 	stmt := "INSERT INTO `reaction` (" + strings.Join(fields, ", ") + ") VALUES (" + strings.Join(placeholder, ", ") + ")"
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| 	result, err := d.db.ExecContext(ctx, stmt, args...)
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| 	if err != nil {
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| 		return nil, err
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| 	}
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| 
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| 	rawID, err := result.LastInsertId()
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| 	if err != nil {
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| 		return nil, err
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| 	}
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| 	id := int32(rawID)
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| 	reaction, err := d.GetReaction(ctx, &store.FindReaction{ID: &id})
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| 	if err != nil {
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| 		return nil, err
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| 	}
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| 	if reaction == nil {
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| 		return nil, errors.Errorf("failed to create reaction")
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| 	}
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| 	return reaction, nil
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| }
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| 
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| func (d *DB) ListReactions(ctx context.Context, find *store.FindReaction) ([]*store.Reaction, error) {
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| 	where, args := []string{"1 = 1"}, []interface{}{}
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| 	if find.ID != nil {
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| 		where, args = append(where, "`id` = ?"), append(args, *find.ID)
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| 	}
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| 	if find.CreatorID != nil {
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| 		where, args = append(where, "`creator_id` = ?"), append(args, *find.CreatorID)
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| 	}
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| 	if find.ContentID != nil {
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| 		where, args = append(where, "`content_id` = ?"), append(args, *find.ContentID)
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| 	}
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| 
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| 	rows, err := d.db.QueryContext(ctx, `
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| 		SELECT
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| 			id,
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| 			UNIX_TIMESTAMP(created_ts) AS created_ts,
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| 			creator_id,
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| 			content_id,
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| 			reaction_type
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| 		FROM reaction
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| 		WHERE `+strings.Join(where, " AND ")+`
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| 		ORDER BY id ASC`,
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| 		args...,
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| 	)
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| 	if err != nil {
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| 		return nil, err
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| 	}
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| 	defer rows.Close()
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| 
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| 	list := []*store.Reaction{}
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| 	for rows.Next() {
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| 		reaction := &store.Reaction{}
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| 		var reactionType string
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| 		if err := rows.Scan(
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| 			&reaction.ID,
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| 			&reaction.CreatedTs,
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| 			&reaction.CreatorID,
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| 			&reaction.ContentID,
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| 			&reactionType,
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| 		); err != nil {
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| 			return nil, err
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| 		}
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| 		reaction.ReactionType = storepb.ReactionType(storepb.ReactionType_value[reactionType])
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| 		list = append(list, reaction)
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| 	}
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| 
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| 	if err := rows.Err(); err != nil {
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| 		return nil, err
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| 	}
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| 
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| 	return list, nil
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| }
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| 
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| func (d *DB) GetReaction(ctx context.Context, find *store.FindReaction) (*store.Reaction, error) {
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| 	list, err := d.ListReactions(ctx, find)
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| 	if err != nil {
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| 		return nil, err
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| 	}
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| 	if len(list) == 0 {
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| 		return nil, nil
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| 	}
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| 
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| 	reaction := list[0]
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| 	return reaction, nil
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| }
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| 
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| func (d *DB) DeleteReaction(ctx context.Context, delete *store.DeleteReaction) error {
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| 	_, err := d.db.ExecContext(ctx, "DELETE FROM `reaction` WHERE `id` = ?", delete.ID)
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| 	return err
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| }
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