Commit fe54f1a
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fix(model): scope a nested include's inner join to its own parent join
`findAll(include="...")` copied every INNER JOIN into every LEFT OUTER JOIN. With a single
outer join — the shape both issue #449 and issue #3245 exercise — that is indistinguishable
from correct. Add a shallow sibling ahead of the nested group and it fans out:
include = "c_o_r_e_comments,classifications(tag)"
FROM posts
LEFT OUTER JOIN (comments INNER JOIN tags ON classifications.tagid = tags.id) ON ...
LEFT OUTER JOIN (classifications INNER JOIN tags ON classifications.tagid = tags.id) ON ...
The first group references `classifications` before the query introduces it. Reported
against Oracle as ORA-00904, but it is engine-independent: on SQLite the same include errors
with `no such column: c_o_r_e_classifications.tagid`.
The information needed to place each join correctly already existed and was being thrown
away. `$expandedAssociations` walks the include with a `levels` stack, so it knows exactly
which association nests under which — and then returned a flat array, leaving `$fromClause`
to re-derive parentage by regex over the generated SQL text. Both prior patches to this code
fought that same information loss. Each entry now carries `parentPosition`, and an INNER
join is grouped with one OUTER join: the association it is actually nested under. A
root-level INNER join has no enclosing group and stays flat, which keeps the root FROM table
in scope for its ON condition — the #3245 failure mode, now prevented structurally rather
than by a gate.
That also fixes a root-level INNER join being dropped from the output entirely. The old loop
only ever emitted the outer-join array, so `include="author,classifications(tag)"` never
emitted `INNER JOIN authors` at top level at all — it appeared only inside the
classifications group, where its ON references the out-of-scope root.
The gate is now redundant, so it is gone. It tested the include STRING against
`^([^(]+)\(([^)]+)\)$`, which only matches when the nested group comes last, so `a(b),c` and
`c,a(b)` generated different SQL for the same query. Whether a join is correctly scoped is a
property of the association tree, not of where the user typed the parentheses. Removing it
also collapses the duplicated flat-join branch: 200 lines changed, 42 fewer.
Behaviour change, called out in the changelog: in the nested-first form the nested INNER
JOIN used to be emitted at the root, demoting the sibling LEFT OUTER JOIN to an inner join
and silently dropping parent rows with no associated record. On the fixtures that is 3 rows
where the nested-last form returns 15. Both orderings now return 15. A query written
nested-first can therefore return more rows than before — the rows a hasMany/hasOne include
exists to preserve. Apps that relied on the filtering should set joinType="inner".
Red-first, with sql.cfc reverted to develop: 945 pass / 3 fail / 1 error. The three string
assertions fail on the generated SQL and the executable one errors with the SQLite message
above — the reported symptom, reproduced.
Verification, lucee7 + sqlite, full core suite, back to back on one machine:
develop ab901cf 4732 pass / 0 fail / 0 error
this branch 4736 pass / 0 fail / 0 error
Exactly +4, the new specs. The existing #449 and #3245 regression specs pass unchanged and
byte-identically — neither expected string needed editing.
Reported by Mike Grogan, who also submitted a working patch. His fix localises the same
loop but decides ownership by substring-searching the outer join's table name inside each
inner join string, which misfires when one table name contains another (c_o_r_e_photos
inside c_o_r_e_photogalleryphotos, already present in these fixtures) and leaves the
ordering inconsistency in place.
Closes #3334
Signed-off-by: Peter Amiri <peter@alurium.com>1 parent ab901cf commit fe54f1a
10 files changed
Lines changed: 596 additions & 113 deletions
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- changelog.d
- public/testbox/system/stubs
- vendor/wheels
- model
- tests/specs/model
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