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128 lines
3.2 KiB
Go
128 lines
3.2 KiB
Go
package mysql
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import (
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"context"
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"fmt"
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"strings"
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"github.com/pkg/errors"
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"github.com/usememos/memos/plugin/filter"
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"github.com/usememos/memos/store"
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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}
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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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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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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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for _, filterStr := range find.Filters {
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// Parse filter string and return the parsed expression.
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// The filter string should be a CEL expression.
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parsedExpr, err := filter.Parse(filterStr, filter.ReactionFilterCELAttributes...)
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if err != nil {
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return nil, err
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}
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convertCtx := filter.NewConvertContext()
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// ConvertExprToSQL converts the parsed expression to a SQL condition string.
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converter := filter.NewCommonSQLConverter(&filter.MySQLDialect{})
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if err := converter.ConvertExprToSQL(convertCtx, parsedExpr.GetExpr()); err != nil {
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return nil, err
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}
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condition := convertCtx.Buffer.String()
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if condition != "" {
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where = append(where, fmt.Sprintf("(%s)", condition))
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args = append(args, convertCtx.Args...)
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}
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}
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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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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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list := []*store.Reaction{}
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for rows.Next() {
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reaction := &store.Reaction{}
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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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&reaction.ReactionType,
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); err != nil {
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return nil, err
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}
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list = append(list, reaction)
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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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return list, nil
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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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reaction := list[0]
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return reaction, nil
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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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