#14803 closed defect (fixed)
[patch][cla] dojo.query() fails to match #c when there is no #b when given this query: "#a,#b,#c"
| Reported by: | Ray Waldin | Owned by: | Kris Zyp |
|---|---|---|---|
| Priority: | high | Milestone: | 1.9 |
| Component: | Query | Version: | 1.7.2rc1 |
| Keywords: | Cc: | ||
| Blocked By: | Blocking: |
Description
A working example of this bug can be found here: http://jsfiddle.net/rwaldin/SEMHF/
dojo.query() will fail to match correctly when issued queries with multiple selector groups (i.e. "dojo.query('#a,#b,#c')") if there are no elements matching the second selector group (#b in this case), and the query is handled by acme and not document.querySelectorAll (e.g., in IE < 8, or in webkit/firefox with no spaces in the query and only ids).
This issue is a duplicate of #7125. That issue was incorrectly marked as fixed. The revision in which the supposed fix was committed (r16618) also changed the test case, circumventing the original problem.
The problem lies with the _zip() function, which tests the elements of its array parameter for truthiness. If any element beyond the first is falsy, this function short circuits and fails to process subsequent elements.
The attached patch, made against the 1.7.2rc1 tagged acme.js, fixes this problem. It also includes a test case that demonstrates the problem and the fix.
Attachments (2)
Change History (12)
Changed 8 years ago by
| Attachment: | acmezipfix.patch added |
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comment:1 Changed 8 years ago by
| Owner: | changed from Kris Zyp to Ray Waldin |
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| Status: | new → pending |
| Summary: | dojo.query() fails to match #c when there is no #b when given this query: "#a,#b,#c" → [patch] dojo.query() fails to match #c when there is no #b when given this query: "#a,#b,#c" |
comment:2 Changed 8 years ago by
| Resolution: | → invalid |
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| Status: | pending → closed |
Because we get so many tickets, we often need to return them to the initial reporter for more information. If that person does not reply within 14 days, the ticket will automatically be closed, and that has happened in this case. If you still are interested in pursuing this issue, feel free to add a comment with the requested information and we will be happy to reopen the ticket if it is still valid. Thanks!
comment:3 Changed 7 years ago by
| Resolution: | invalid |
|---|---|
| Status: | closed → reopened |
| Summary: | [patch] dojo.query() fails to match #c when there is no #b when given this query: "#a,#b,#c" → dojo.query() fails to match #c when there is no #b when given this query: "#a,#b,#c" |
dojo/tests/query/query.html has doh.is(2, (query('#baz,#foo,#t')).length); which passes even on IE6. But changing it to query('#foo,#baz,#t') only returns only 1 element on IE8 and chrome.
So although we can't use Ray's patch, looks like there's a bug, so this ticket should be left open.
Changed 7 years ago by
| Attachment: | acmezipfix-alternative.patch added |
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Alternative patch, under CLA and simpler than the original
comment:5 Changed 7 years ago by
Here is an alternative patch that fixes the issue and dispenses with pre-loop logic involving arr[0], using normal 0 .. length - 1 loops instead.
acme.js is slightly smaller after the patch.
comment:6 Changed 7 years ago by
| Milestone: | tbd → 1.9 |
|---|---|
| Summary: | dojo.query() fails to match #c when there is no #b when given this query: "#a,#b,#c" → [patch][cla] dojo.query() fails to match #c when there is no #b when given this query: "#a,#b,#c" |
comment:7 Changed 7 years ago by
| Owner: | changed from Ray Waldin to Kris Zyp |
|---|---|
| Priority: | undecided → high |
| Status: | reopened → assigned |
comment:8 Changed 7 years ago by
Cool, that patch works for me (after uncommenting the test case I put into query.html).
Hi Ray. That's great that you have the patch, including a test case. We just need you to file a CLA so we can use it, or let us know if you are working for a company w/a CCLA (and which company it is), thanks!