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Implemented GetForJSON and FromJSONToValue for AttributeLinkedSet (though this is not used for the Rest/JSON services which are doing much more) -retrofit from branch 2.1.0

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SVN:trunk[3587]
This commit is contained in:
Romain Quetiez
2015-05-26 12:04:29 +00:00
parent 35e58f8cd2
commit 73cd1274a5
1 changed files with 100 additions and 0 deletions
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100
core/attributedef.class.inc.php
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@@ -962,6 +962,106 @@ class AttributeLinkedSet extends AttributeDefinition
return $oSet;
}
/**
* Helper to get a value that will be JSON encoded
* The operation is the opposite to FromJSONToValue
*/
public function GetForJSON($value)
{
$aRet = array();
if (is_object($value) && ($value instanceof DBObjectSet))
{
$value->Rewind();
while ($oObj = $value->Fetch())
{
$sObjClass = get_class($oObj);
// Show only relevant information (hide the external key to the current object)
$aAttributes = array();
foreach(MetaModel::ListAttributeDefs($sObjClass) as $sAttCode => $oAttDef)
{
if ($sAttCode == 'finalclass')
{
if ($sObjClass == $this->GetLinkedClass())
{
// Simplify the output if the exact class could be determined implicitely
continue;
}
}
if ($sAttCode == $this->GetExtKeyToMe()) continue;
if ($oAttDef->IsExternalField()) continue;
if (!$oAttDef->IsDirectField()) continue;
if (!$oAttDef->IsScalar()) continue;
$attValue = $oObj->Get($sAttCode);
$aAttributes[$sAttCode] = $oAttDef->GetForJSON($attValue);
}
$aRet[] = $aAttributes;
}
}
return $aRet;
}
/**
* Helper to form a value, given JSON decoded data
* The operation is the opposite to GetForJSON
*/
public function FromJSONToValue($json)
{
$sTargetClass = $this->Get('linked_class');
$aLinks = array();
foreach($json as $aValues)
{
if (isset($aValues['finalclass']))
{
$sLinkClass = $aValues['finalclass'];
if (!is_subclass_of($sLinkClass, $sTargetClass))
{
throw new CoreException('Wrong class for link attribute specification', array('requested_class' => $sLinkClass, 'expected_class' => $sTargetClass));
}
}
elseif (MetaModel::IsAbstract($sTargetClass))
{
throw new CoreException('Missing finalclass for link attribute specification');
}
else
{
$sLinkClass = $sTargetClass;
}
$oLink = MetaModel::NewObject($sLinkClass);
foreach ($aValues as $sAttCode => $sValue)
{
$oLink->Set($sAttCode, $sValue);
}
// Check (roughly) if such a link is valid
$aErrors = array();
foreach(MetaModel::ListAttributeDefs($sTargetClass) as $sAttCode => $oAttDef)
{
if ($oAttDef->IsExternalKey())
{
if (($oAttDef->GetTargetClass() == $this->GetHostClass()) || (is_subclass_of($this->GetHostClass(), $oAttDef->GetTargetClass())))
{
continue; // Don't check the key to self
}
}
if ($oAttDef->IsWritable() && $oAttDef->IsNull($oLink->Get($sAttCode)) && !$oAttDef->IsNullAllowed())
{
$aErrors[] = $sAttCode;
}
}
if (count($aErrors) > 0)
{
throw new CoreException("Missing value for mandatory attribute(s): ".implode(', ', $aErrors));
}
$aLinks[] = $oLink;
}
$oSet = DBObjectSet::FromArray($sTargetClass, $aLinks);
return $oSet;
}
public function Equals($val1, $val2)
{
if ($val1 === $val2) return true;