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Copy pathjob.go
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82 lines (72 loc) · 2.26 KB
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// Copyright 2017 Frédéric Guillot. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package storage // import "miniflux.app/storage"
import (
"fmt"
"miniflux.app/config"
"miniflux.app/model"
)
// NewBatch returns a series of jobs.
func (s *Storage) NewBatch(batchSize int) (jobs model.JobList, err error) {
pollingParsingErrorLimit := config.Opts.PollingParsingErrorLimit()
query := `
SELECT
id,
user_id
FROM
feeds
WHERE
disabled is false AND next_check_at < now() AND
CASE WHEN $1 > 0 THEN parsing_error_count < $1 ELSE parsing_error_count >= 0 END
ORDER BY next_check_at ASC LIMIT $2
`
return s.fetchBatchRows(query, pollingParsingErrorLimit, batchSize)
}
// NewUserBatch returns a series of jobs but only for a given user.
func (s *Storage) NewUserBatch(userID int64, batchSize int) (jobs model.JobList, err error) {
// We do not take the error counter into consideration when the given
// user refresh manually all his feeds to force a refresh.
query := `
SELECT
id,
user_id
FROM
feeds
WHERE
user_id=$1 AND disabled is false
ORDER BY next_check_at ASC LIMIT %d
`
return s.fetchBatchRows(fmt.Sprintf(query, batchSize), userID)
}
// NewCategoryBatch returns a series of jobs but only for a given category.
func (s *Storage) NewCategoryBatch(userID int64, categoryID int64, batchSize int) (jobs model.JobList, err error) {
// We do not take the error counter into consideration when the given
// user refresh manually all his feeds to force a refresh.
query := `
SELECT
id,
user_id
FROM
feeds
WHERE
user_id=$1 AND category_id=$2 AND disabled is false
ORDER BY next_check_at ASC LIMIT %d
`
return s.fetchBatchRows(fmt.Sprintf(query, batchSize), userID, categoryID)
}
func (s *Storage) fetchBatchRows(query string, args ...interface{}) (jobs model.JobList, err error) {
rows, err := s.db.Query(query, args...)
if err != nil {
return nil, fmt.Errorf(`store: unable to fetch batch of jobs: %v`, err)
}
defer rows.Close()
for rows.Next() {
var job model.Job
if err := rows.Scan(&job.FeedID, &job.UserID); err != nil {
return nil, fmt.Errorf(`store: unable to fetch job: %v`, err)
}
jobs = append(jobs, job)
}
return jobs, nil
}