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<td class="page-title-pattern-first-line " style="padding: 0; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://hibernate.atlassian.net/browse/HHH" style="color: #3b73af; text-decoration: none">Hibernate ORM</a> / <a href="https://hibernate.atlassian.net/browse/HHH-11587" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-f7f41d68-c4b7-4678-ad2d-da34c1bef9d7" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-11587" style="color: #3b73af; text-decoration: none">HHH-11587</a> </td>
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<td style="vertical-align: top;; padding: 0; border-collapse: collapse; padding-right: 5px; font-size: 20px; line-height: 30px; mso-line-height-rule: exactly" class="page-title-pattern-header-container"> <span class="page-title-pattern-header" style="font-family: Arial, sans-serif; padding: 0; font-size: 20px; line-height: 30px; mso-text-raise: 2px; mso-line-height-rule: exactly; vertical-align: middle"> <a href="https://hibernate.atlassian.net/browse/HHH-11587" style="color: #3b73af; text-decoration: none">Reordering items in List throws a constraint violation</a> </span> </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Issue Type:</th>
<td class="has-icon" style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <img src="cid:jira-generated-image-avatar-f7f41d68-c4b7-4678-ad2d-da34c1bef9d7" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"> Bug </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Affects Versions:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 5.2.3 </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Assignee:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> Unassigned </td>
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<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> src.zip </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Components:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> hibernate-core </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Created:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 22/Mar/2017 03:12 AM </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Environment:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> Java 1.8.0_65, Hibernate, MariaDB or HSQLDB </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Priority:</th>
<td class="has-icon" style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <img src="cid:jira-generated-image-static-blocker-4737f2c2-617a-4ec6-a52f-b254919b0291" height="16" width="16" border="0" align="absmiddle" alt="Blocker" style="vertical-align: text-bottom"> Blocker </td>
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<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="upf" id="email_upf" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=upf" style="color:#6c797f;; color: #3b73af; text-decoration: none">Uwe</a> </td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0; border-collapse: collapse; padding: 0 0 10px"> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0; margin-top: 0">I want Hibernate to manage the order of a list. The time the list is generated, everything seems to work fine. The tables look like I would expect them to look, the items are retrieved in the order they have been saved. <br> The problem occurs when reordering the item list (removing item and inserting it at another place in the same list). I get the following error (first two lines are test output from my program):<br> {{MOVE CHILD DATA<br> One / Two / Three / Four / Five /<br> Hibernate: delete from ParentData_ChildData where ParentData_id=? and listOrder=?<br> Hibernate: update ParentData_ChildData set children_id=? where ParentData_id=? and listOrder=?<br> Mär 12, 2017 11:13:26 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions<br> WARN: SQL Error: -104, SQLState: 23505<br> Mär 12, 2017 11:13:26 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions<br> ERROR: integrity constraint violation: unique constraint or index violation; UK_9TWN3CBE7SO94343AOP2QKCTC table: PARENTDATA_CHILDDATA<br> Mär 12, 2017 11:13:26 PM org.hibernate.engine.jdbc.batch.internal.AbstractBatchImpl release<br> INFO: HHH000010: On release of batch it still contained JDBC statements<br> javax.persistence.PersistenceException: org.hibernate.exception.ConstraintViolationException: could not execute statement<br> at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:147)<br> at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:155)<br> at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:162)<br> at org.hibernate.internal.SessionImpl.doFlush(SessionImpl.java:1413)<br> at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1393)<br> at net.upf.hibtest.HibTest.main(HibTest.java:56)}}</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">The third line indicates that hibernate tries to set a new children_id for an already existing listOrder position before removing this children_id at the previous listOrder postion and thus duplicationg this id. <br> Tried two databases (MariaDB on server and local HSQLDB), both gave the same results.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">I set up a very basic testcase that can reproduce the behaviour. It consits of three files: parent-entity, child-entity and main()-method. I put my testcase in the attached zip, also containing the hibernate.cfg.xml. Hope this helps to reproduce the problem or see where I got something wrong.<br> Additional info: I always want to go from parent to child, so I didn't put a reference to the parent into the child (which should be OK, according to some documentation I found) and I understand, that this might not be the fastest solution on earth - but it should at least work somehow.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">I kept this short and hope this bug report has all necessary information - for more explanation you also find my question here: <a href="https://forum.hibernate.org/viewtopic.php?f=1&t=1044101" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">https://forum.hibernate.org/viewtopic.php?f=1&t=1044101</a></p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">I mark this as a blocker to me, since it simply blocks me from getting the task done. </p> </td>
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