| 293 |
293 |
limit(options[:limit]).
|
| 294 |
294 |
offset(options[:offset])
|
| 295 |
295 |
|
|
296 |
return preload_issues scope
|
|
297 |
rescue ::ActiveRecord::StatementInvalid => e
|
|
298 |
raise StatementInvalid.new(e.message)
|
|
299 |
end
|
|
300 |
|
|
301 |
# Like #issues, but returns an enumerator that lazily loads batches of issues
|
|
302 |
# Valid options are :order, :offset, :limit, :include, :conditions
|
|
303 |
def lazy_issues(options={})
|
|
304 |
issue_ids = self.issue_ids options
|
|
305 |
|
|
306 |
return Enumerator.new(issue_ids.length) do |yielder|
|
|
307 |
|
|
308 |
issue_ids.each_slice(500) do |chunked_ids|
|
|
309 |
# The FIELD() function is MySQL-specific
|
|
310 |
scope = Issue
|
|
311 |
.where(id: chunked_ids)
|
|
312 |
.order("FIELD(id,#{chunked_ids.join(',')})")
|
|
313 |
|
|
314 |
preload_issues(scope).each do |issue|
|
|
315 |
yielder << issue
|
|
316 |
end
|
|
317 |
end
|
|
318 |
end
|
|
319 |
end
|
|
320 |
|
|
321 |
# takes a scope, returns an array
|
|
322 |
def preload_issues(scope)
|
| 296 |
323 |
scope = scope.preload([:tracker, :author, :assigned_to, :fixed_version, :category, :attachments] & columns.map(&:name))
|
| 297 |
324 |
if has_custom_field_column?
|
| 298 |
325 |
scope = scope.preload(:custom_values)
|
| ... | ... | |
| 315 |
342 |
if has_column?(:last_notes)
|
| 316 |
343 |
Issue.load_visible_last_notes(issues)
|
| 317 |
344 |
end
|
| 318 |
|
issues
|
| 319 |
|
rescue ::ActiveRecord::StatementInvalid => e
|
| 320 |
|
raise StatementInvalid.new(e.message)
|
|
345 |
return issues
|
| 321 |
346 |
end
|
|
347 |
private :preload_issues
|
| 322 |
348 |
|
| 323 |
349 |
# Returns the issues ids
|
| 324 |
350 |
def issue_ids(options={})
|