first commit

store/db/sqlite/reaction.go

@@ -0,0 +1,136 @@
+package sqlite
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"strings"
+
+	"github.com/usememos/memos/store"
+)
+
+func (d *DB) UpsertReaction(ctx context.Context, upsert *store.Reaction) (*store.Reaction, error) {
+	fields := []string{"`creator_id`", "`content_id`", "`reaction_type`"}
+	placeholder := []string{"?", "?", "?"}
+	args := []interface{}{upsert.CreatorID, upsert.ContentID, upsert.ReactionType}
+	stmt := "INSERT INTO `reaction` (" + strings.Join(fields, ", ") + ") VALUES (" + strings.Join(placeholder, ", ") + ") RETURNING `id`, `created_ts`"
+	if err := d.db.QueryRowContext(ctx, stmt, args...).Scan(
+		&upsert.ID,
+		&upsert.CreatedTs,
+	); err != nil {
+		return nil, err
+	}
+
+	reaction := upsert
+	return reaction, nil
+}
+
+func (d *DB) ListReactions(ctx context.Context, find *store.FindReaction) ([]*store.Reaction, error) {
+	where, args := []string{"1 = 1"}, []any{}
+
+	if find.ID != nil {
+		where, args = append(where, "id = ?"), append(args, *find.ID)
+	}
+	if find.CreatorID != nil {
+		where, args = append(where, "creator_id = ?"), append(args, *find.CreatorID)
+	}
+	if find.ContentID != nil {
+		where, args = append(where, "content_id = ?"), append(args, *find.ContentID)
+	}
+	if len(find.ContentIDList) > 0 {
+		placeholders := make([]string, 0, len(find.ContentIDList))
+		for range find.ContentIDList {
+			placeholders = append(placeholders, "?")
+		}
+		if len(placeholders) > 0 {
+			where = append(where, "content_id IN ("+strings.Join(placeholders, ",")+")")
+			for _, id := range find.ContentIDList {
+				args = append(args, id)
+			}
+		}
+	}
+
+	rows, err := d.db.QueryContext(ctx, `
+		SELECT
+			id,
+			created_ts,
+			creator_id,
+			content_id,
+			reaction_type
+		FROM reaction
+		WHERE `+strings.Join(where, " AND ")+`
+		ORDER BY id ASC`,
+		args...,
+	)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	list := []*store.Reaction{}
+	for rows.Next() {
+		reaction := &store.Reaction{}
+		if err := rows.Scan(
+			&reaction.ID,
+			&reaction.CreatedTs,
+			&reaction.CreatorID,
+			&reaction.ContentID,
+			&reaction.ReactionType,
+		); err != nil {
+			return nil, err
+		}
+		list = append(list, reaction)
+	}
+
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return list, nil
+}
+
+func (d *DB) GetReaction(ctx context.Context, find *store.FindReaction) (*store.Reaction, error) {
+	where, args := []string{"1 = 1"}, []any{}
+
+	if find.ID != nil {
+		where, args = append(where, "id = ?"), append(args, *find.ID)
+	}
+	if find.CreatorID != nil {
+		where, args = append(where, "creator_id = ?"), append(args, *find.CreatorID)
+	}
+	if find.ContentID != nil {
+		where, args = append(where, "content_id = ?"), append(args, *find.ContentID)
+	}
+
+	reaction := &store.Reaction{}
+	if err := d.db.QueryRowContext(ctx, `
+		SELECT
+			id,
+			created_ts,
+			creator_id,
+			content_id,
+			reaction_type
+		FROM reaction
+		WHERE `+strings.Join(where, " AND ")+`
+		LIMIT 1`,
+		args...,
+	).Scan(
+		&reaction.ID,
+		&reaction.CreatedTs,
+		&reaction.CreatorID,
+		&reaction.ContentID,
+		&reaction.ReactionType,
+	); err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, nil
+		}
+		return nil, err
+	}
+
+	return reaction, nil
+}
+
+func (d *DB) DeleteReaction(ctx context.Context, delete *store.DeleteReaction) error {
+	_, err := d.db.ExecContext(ctx, "DELETE FROM `reaction` WHERE `id` = ?", delete.ID)
+	return err
+}