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Prerequisite for #1334. New API: DBObjectSet::SetOrderByClasses. Helper to sort on multicolumn queries (SELECT a, b FROM)

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SVN:trunk[4413]
This commit is contained in:
Romain Quetiez
2016-09-23 15:05:06 +00:00
parent a34747f893
commit 2f8dc0fa0f
1 changed files with 30 additions and 2 deletions
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32
core/dbobjectset.class.php
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@@ -445,8 +445,8 @@ class DBObjectSet
/**
* Sets the sort order for loading the rows from the DB. Changing the order by causes a Reload.
*
* @param hash $aOrderBy Format: field_code => boolean (true = ascending, false = descending)
*
* @param hash $aOrderBy Format: [alias.]attcode => boolean (true = ascending, false = descending)
*/
public function SetOrderBy($aOrderBy)
{
@@ -461,6 +461,34 @@ class DBObjectSet
}
}
/**
* Sets the sort order for loading the rows from the DB. Changing the order by causes a Reload.
*
* @param hash $aAliases Format: alias => boolean (true = ascending, false = descending). If omitted, then it defaults to all the selected classes
*/
public function SetOrderByClasses($aAliases = null)
{
if ($aAliases === null)
{
$aAliases = array();
foreach ($this->GetSelectedClasses() as $sAlias => $sClass)
{
$aAliases[$sAlias] = true;
}
}
$aAttributes = array();
foreach ($aAliases as $sAlias => $bClassDirection)
{
foreach (MetaModel::GetOrderByDefault($this->m_oFilter->GetClass($sAlias)) as $sAttCode => $bAttributeDirection)
{
$bDirection = $bClassDirection ? $bAttributeDirection : !$bAttributeDirection;
$aAttributes[$sAlias.'.'.$sAttCode] = $bDirection;
}
}
$this->SetOrderBy($aAttributes);
}
/**
* Returns the 'count' limit for loading the rows from the DB
*