fix bugs when too many IN variables (#4594) (#4597)

This commit is contained in:
Lunny Xiao 2018-08-03 02:48:39 +08:00 committed by techknowlogick
parent 940e30bcd4
commit 099028681e
1 changed files with 194 additions and 95 deletions

View File

@ -9,6 +9,11 @@ import "fmt"
// IssueList defines a list of issues // IssueList defines a list of issues
type IssueList []*Issue type IssueList []*Issue
const (
// default variables number on IN () in SQL
defaultMaxInSize = 50
)
func (issues IssueList) getRepoIDs() []int64 { func (issues IssueList) getRepoIDs() []int64 {
repoIDs := make(map[int64]struct{}, len(issues)) repoIDs := make(map[int64]struct{}, len(issues))
for _, issue := range issues { for _, issue := range issues {
@ -26,11 +31,20 @@ func (issues IssueList) loadRepositories(e Engine) ([]*Repository, error) {
repoIDs := issues.getRepoIDs() repoIDs := issues.getRepoIDs()
repoMaps := make(map[int64]*Repository, len(repoIDs)) repoMaps := make(map[int64]*Repository, len(repoIDs))
err := e. var left = len(repoIDs)
In("id", repoIDs). for left > 0 {
Find(&repoMaps) var limit = defaultMaxInSize
if err != nil { if left < limit {
return nil, fmt.Errorf("find repository: %v", err) limit = left
}
err := e.
In("id", repoIDs[:limit]).
Find(&repoMaps)
if err != nil {
return nil, fmt.Errorf("find repository: %v", err)
}
left = left - limit
repoIDs = repoIDs[limit:]
} }
for _, issue := range issues { for _, issue := range issues {
@ -61,11 +75,20 @@ func (issues IssueList) loadPosters(e Engine) error {
posterIDs := issues.getPosterIDs() posterIDs := issues.getPosterIDs()
posterMaps := make(map[int64]*User, len(posterIDs)) posterMaps := make(map[int64]*User, len(posterIDs))
err := e. var left = len(posterIDs)
In("id", posterIDs). for left > 0 {
Find(&posterMaps) var limit = defaultMaxInSize
if err != nil { if left < limit {
return err limit = left
}
err := e.
In("id", posterIDs[:limit]).
Find(&posterMaps)
if err != nil {
return err
}
left = left - limit
posterIDs = posterIDs[limit:]
} }
for _, issue := range issues { for _, issue := range issues {
@ -99,23 +122,34 @@ func (issues IssueList) loadLabels(e Engine) error {
} }
var issueLabels = make(map[int64][]*Label, len(issues)*3) var issueLabels = make(map[int64][]*Label, len(issues)*3)
rows, err := e.Table("label"). var issueIDs = issues.getIssueIDs()
Join("LEFT", "issue_label", "issue_label.label_id = label.id"). var left = len(issueIDs)
In("issue_label.issue_id", issues.getIssueIDs()). for left > 0 {
Asc("label.name"). var limit = defaultMaxInSize
Rows(new(LabelIssue)) if left < limit {
if err != nil { limit = left
return err }
} rows, err := e.Table("label").
defer rows.Close() Join("LEFT", "issue_label", "issue_label.label_id = label.id").
In("issue_label.issue_id", issueIDs[:limit]).
for rows.Next() { Asc("label.name").
var labelIssue LabelIssue Rows(new(LabelIssue))
err = rows.Scan(&labelIssue)
if err != nil { if err != nil {
return err return err
} }
issueLabels[labelIssue.IssueLabel.IssueID] = append(issueLabels[labelIssue.IssueLabel.IssueID], labelIssue.Label)
for rows.Next() {
var labelIssue LabelIssue
err = rows.Scan(&labelIssue)
if err != nil {
rows.Close()
return err
}
issueLabels[labelIssue.IssueLabel.IssueID] = append(issueLabels[labelIssue.IssueLabel.IssueID], labelIssue.Label)
}
rows.Close()
left = left - limit
issueIDs = issueIDs[limit:]
} }
for _, issue := range issues { for _, issue := range issues {
@ -141,11 +175,20 @@ func (issues IssueList) loadMilestones(e Engine) error {
} }
milestoneMaps := make(map[int64]*Milestone, len(milestoneIDs)) milestoneMaps := make(map[int64]*Milestone, len(milestoneIDs))
err := e. var left = len(milestoneIDs)
In("id", milestoneIDs). for left > 0 {
Find(&milestoneMaps) var limit = defaultMaxInSize
if err != nil { if left < limit {
return err limit = left
}
err := e.
In("id", milestoneIDs[:limit]).
Find(&milestoneMaps)
if err != nil {
return err
}
left = left - limit
milestoneIDs = milestoneIDs[limit:]
} }
for _, issue := range issues { for _, issue := range issues {
@ -165,23 +208,35 @@ func (issues IssueList) loadAssignees(e Engine) error {
} }
var assignees = make(map[int64][]*User, len(issues)) var assignees = make(map[int64][]*User, len(issues))
rows, err := e.Table("issue_assignees"). var issueIDs = issues.getIssueIDs()
Join("INNER", "`user`", "`user`.id = `issue_assignees`.assignee_id"). var left = len(issueIDs)
In("`issue_assignees`.issue_id", issues.getIssueIDs()). for left > 0 {
Rows(new(AssigneeIssue)) var limit = defaultMaxInSize
if err != nil { if left < limit {
return err limit = left
} }
defer rows.Close() rows, err := e.Table("issue_assignees").
Join("INNER", "`user`", "`user`.id = `issue_assignees`.assignee_id").
for rows.Next() { In("`issue_assignees`.issue_id", issueIDs[:limit]).
var assigneeIssue AssigneeIssue Rows(new(AssigneeIssue))
err = rows.Scan(&assigneeIssue)
if err != nil { if err != nil {
return err return err
} }
assignees[assigneeIssue.IssueAssignee.IssueID] = append(assignees[assigneeIssue.IssueAssignee.IssueID], assigneeIssue.Assignee) for rows.Next() {
var assigneeIssue AssigneeIssue
err = rows.Scan(&assigneeIssue)
if err != nil {
rows.Close()
return err
}
assignees[assigneeIssue.IssueAssignee.IssueID] = append(assignees[assigneeIssue.IssueAssignee.IssueID], assigneeIssue.Assignee)
}
rows.Close()
left = left - limit
issueIDs = issueIDs[limit:]
} }
for _, issue := range issues { for _, issue := range issues {
@ -207,21 +262,32 @@ func (issues IssueList) loadPullRequests(e Engine) error {
} }
pullRequestMaps := make(map[int64]*PullRequest, len(issuesIDs)) pullRequestMaps := make(map[int64]*PullRequest, len(issuesIDs))
rows, err := e. var left = len(issuesIDs)
In("issue_id", issuesIDs). for left > 0 {
Rows(new(PullRequest)) var limit = defaultMaxInSize
if err != nil { if left < limit {
return err limit = left
} }
defer rows.Close() rows, err := e.
In("issue_id", issuesIDs[:limit]).
for rows.Next() { Rows(new(PullRequest))
var pr PullRequest
err = rows.Scan(&pr)
if err != nil { if err != nil {
return err return err
} }
pullRequestMaps[pr.IssueID] = &pr
for rows.Next() {
var pr PullRequest
err = rows.Scan(&pr)
if err != nil {
rows.Close()
return err
}
pullRequestMaps[pr.IssueID] = &pr
}
rows.Close()
left = left - limit
issuesIDs = issuesIDs[limit:]
} }
for _, issue := range issues { for _, issue := range issues {
@ -236,22 +302,34 @@ func (issues IssueList) loadAttachments(e Engine) (err error) {
} }
var attachments = make(map[int64][]*Attachment, len(issues)) var attachments = make(map[int64][]*Attachment, len(issues))
rows, err := e.Table("attachment"). var issuesIDs = issues.getIssueIDs()
Join("INNER", "issue", "issue.id = attachment.issue_id"). var left = len(issuesIDs)
In("issue.id", issues.getIssueIDs()). for left > 0 {
Rows(new(Attachment)) var limit = defaultMaxInSize
if err != nil { if left < limit {
return err limit = left
} }
defer rows.Close() rows, err := e.Table("attachment").
Join("INNER", "issue", "issue.id = attachment.issue_id").
for rows.Next() { In("issue.id", issuesIDs[:limit]).
var attachment Attachment Rows(new(Attachment))
err = rows.Scan(&attachment)
if err != nil { if err != nil {
return err return err
} }
attachments[attachment.IssueID] = append(attachments[attachment.IssueID], &attachment)
for rows.Next() {
var attachment Attachment
err = rows.Scan(&attachment)
if err != nil {
rows.Close()
return err
}
attachments[attachment.IssueID] = append(attachments[attachment.IssueID], &attachment)
}
rows.Close()
left = left - limit
issuesIDs = issuesIDs[limit:]
} }
for _, issue := range issues { for _, issue := range issues {
@ -266,22 +344,33 @@ func (issues IssueList) loadComments(e Engine) (err error) {
} }
var comments = make(map[int64][]*Comment, len(issues)) var comments = make(map[int64][]*Comment, len(issues))
rows, err := e.Table("comment"). var issuesIDs = issues.getIssueIDs()
Join("INNER", "issue", "issue.id = comment.issue_id"). var left = len(issuesIDs)
In("issue.id", issues.getIssueIDs()). for left > 0 {
Rows(new(Comment)) var limit = defaultMaxInSize
if err != nil { if left < limit {
return err limit = left
} }
defer rows.Close() rows, err := e.Table("comment").
Join("INNER", "issue", "issue.id = comment.issue_id").
for rows.Next() { In("issue.id", issuesIDs[:limit]).
var comment Comment Rows(new(Comment))
err = rows.Scan(&comment)
if err != nil { if err != nil {
return err return err
} }
comments[comment.IssueID] = append(comments[comment.IssueID], &comment)
for rows.Next() {
var comment Comment
err = rows.Scan(&comment)
if err != nil {
rows.Close()
return err
}
comments[comment.IssueID] = append(comments[comment.IssueID], &comment)
}
rows.Close()
left = left - limit
issuesIDs = issuesIDs[limit:]
} }
for _, issue := range issues { for _, issue := range issues {
@ -307,25 +396,35 @@ func (issues IssueList) loadTotalTrackedTimes(e Engine) (err error) {
} }
} }
// select issue_id, sum(time) from tracked_time where issue_id in (<issue ids in current page>) group by issue_id var left = len(ids)
rows, err := e.Table("tracked_time"). for left > 0 {
Select("issue_id, sum(time) as time"). var limit = defaultMaxInSize
In("issue_id", ids). if left < limit {
GroupBy("issue_id"). limit = left
Rows(new(totalTimesByIssue)) }
if err != nil {
return err
}
defer rows.Close() // select issue_id, sum(time) from tracked_time where issue_id in (<issue ids in current page>) group by issue_id
rows, err := e.Table("tracked_time").
for rows.Next() { Select("issue_id, sum(time) as time").
var totalTime totalTimesByIssue In("issue_id", ids[:limit]).
err = rows.Scan(&totalTime) GroupBy("issue_id").
Rows(new(totalTimesByIssue))
if err != nil { if err != nil {
return err return err
} }
trackedTimes[totalTime.IssueID] = totalTime.Time
for rows.Next() {
var totalTime totalTimesByIssue
err = rows.Scan(&totalTime)
if err != nil {
rows.Close()
return err
}
trackedTimes[totalTime.IssueID] = totalTime.Time
}
rows.Close()
left = left - limit
ids = ids[limit:]
} }
for _, issue := range issues { for _, issue := range issues {