diff options
| -rw-r--r-- | .gitattributes | 1 | ||||
| -rw-r--r-- | buildscripts/phpbuilder/files.txt | 1 | ||||
| -rw-r--r-- | framework/Data/TDataFieldAccessor.php | 118 | ||||
| -rw-r--r-- | framework/Exceptions/messages.txt | 3 | ||||
| -rw-r--r-- | framework/Web/UI/WebControls/TDataGridColumn.php | 13 | ||||
| -rw-r--r-- | framework/core.php | 4 |
6 files changed, 128 insertions, 12 deletions
diff --git a/.gitattributes b/.gitattributes index 392e37c7..5b0fc88f 100644 --- a/.gitattributes +++ b/.gitattributes @@ -267,6 +267,7 @@ framework/Collections/TMap.php -text framework/Collections/TPagedDataSource.php -text framework/Data/TAPCCache.php -text framework/Data/TCache.php -text +framework/Data/TDataFieldAccessor.php -text framework/Data/TDateTimeSimpleFormatter.php -text framework/Data/TMemCache.php -text framework/Data/TSqliteCache.php -text diff --git a/buildscripts/phpbuilder/files.txt b/buildscripts/phpbuilder/files.txt index 143f7404..f2b3676f 100644 --- a/buildscripts/phpbuilder/files.txt +++ b/buildscripts/phpbuilder/files.txt @@ -10,6 +10,7 @@ Collections/TAttributeCollection.php Data/TXmlDocument.php
Web/THttpUtility.php
Data/TCache.php
+Data/TDataFieldAccessor.php
Log/TLogger.php
core.php
diff --git a/framework/Data/TDataFieldAccessor.php b/framework/Data/TDataFieldAccessor.php new file mode 100644 index 00000000..2c2be00f --- /dev/null +++ b/framework/Data/TDataFieldAccessor.php @@ -0,0 +1,118 @@ +<?php
+/**
+ * TDataFieldAccessor class file
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @link http://www.pradosoft.com/
+ * @copyright Copyright © 2005 PradoSoft
+ * @license http://www.pradosoft.com/license/
+ * @version $Revision: $ $Date: $
+ * @package System.Data
+ */
+
+/**
+ * TDataFieldAccessor class
+ *
+ * TDataFieldAccessor is a utility class that provides access to a field of some data.
+ * The accessor attempts to obtain the field value in the following order:
+ * - If the data is an array, then the field is treated as an array index
+ * and the corresponding element value is returned;
+ * - If the data is a TMap or TList object, then the field is treated as a key
+ * into the map or list, and the corresponding value is returned.
+ * - If the data is an object, the field is treated as a property or subproperty
+ * defined with getter methods. For example, if the object has a method called
+ * getMyValue(), then field 'MyValue' will retrive the result of this method call.
+ * If getMyValue() returns an object which contains a method getMySubValue(),
+ * then field 'MyValue.MySubValue' will return that method call result.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Revision: $ $Date: $
+ * @package System.Data
+ * @since 3.0
+ */
+class TDataFieldAccessor
+{
+ /**
+ * Evaluates the data value at the specified field.
+ * - If the data is an array, then the field is treated as an array index
+ * and the corresponding element value is returned;
+ * - If the data is a TMap or TList object, then the field is treated as a key
+ * into the map or list, and the corresponding value is returned.
+ * - If the data is an object, the field is treated as a property or subproperty
+ * defined with getter methods. For example, if the object has a method called
+ * getMyValue(), then field 'MyValue' will retrive the result of this method call.
+ * If getMyValue() returns an object which contains a method getMySubValue(),
+ * then field 'MyValue.MySubValue' will return that method call result.
+ * @param mixed data containing the field value, can be an array, TMap, TList or object.
+ * @param mixed field value
+ * @return mixed value at the specified field
+ * @throw TInvalidDataValueException if field or data is invalid
+ */
+ public static function getDataFieldValue($data,$field)
+ {
+ if(Prado::getApplication()->getMode()===TApplication::STATE_PERFORMANCE)
+ {
+ if(is_array($data))
+ return $data[$field];
+ else if(($data instanceof TMap) || ($data instanceof TList))
+ return $data->itemAt($field);
+ else if(is_object($data))
+ {
+ if(strpos($field,'.')===false) // simple field
+ return call_user_func(array($data,'get'.$field));
+ else // field in the format of xxx.yyy.zzz
+ {
+ $object=$data;
+ foreach(explode('.',$field) as $f)
+ $object=call_user_func(array($object,'get'.$f));
+ return $object;
+ }
+ }
+ else
+ throw new TInvalidDataValueException('datafieldaccessor_data_invalid',$field);
+ }
+ else
+ {
+ if(is_array($data))
+ {
+ if(isset($data[$field]))
+ return $data[$field];
+ else
+ throw new TInvalidDataValueException('datafieldaccessor_datafield_invalid',$field);
+ }
+ else if(($data instanceof TMap) || ($data instanceof TList))
+ {
+ if($data->contains($field))
+ return $data->itemAt($field);
+ else
+ throw new TInvalidDataValueException('datafieldaccessor_datafield_invalid',$field);
+ }
+ else if(is_object($data))
+ {
+ if(strpos($field,'.')===false) // simple field
+ {
+ $getter='get'.$field;
+ if(is_callable(array($data,$getter)))
+ return call_user_func(array($data,$getter));
+ }
+ else // field in the format of xxx.yyy.zzz
+ {
+ $object=$data;
+ foreach(explode('.',$field) as $f)
+ {
+ $getter='get'.$f;
+ if(is_callable(array($object,$getter)))
+ $object=call_user_func(array($object,$getter));
+ else
+ throw new TInvalidDataValueException('datafieldaccessor_datafield_invalid',$field);
+ }
+ return $object;
+ }
+ }
+ else
+ throw new TInvalidDataValueException('datafieldaccessor_data_invalid',$field);
+ }
+ }
+}
+
+?>
\ No newline at end of file diff --git a/framework/Exceptions/messages.txt b/framework/Exceptions/messages.txt index ebe645e8..d0c1a7be 100644 --- a/framework/Exceptions/messages.txt +++ b/framework/Exceptions/messages.txt @@ -203,7 +203,8 @@ datagrid_virtualitemcount_invalid = TDataGrid.VirtualItemCount must be no less datagridpagerstyle_pagebuttoncount_invalid = TDataGridPagerStyle.PageButtonCount must be greater than 0.
-datagridcolumn_data_invalid = %s is unable to evaluate the value of data field %s. The data must be an array, TList, TMap, or component that contains the field.
+datafieldaccessor_data_invalid = TDataFieldAccessor is trying to evaluate a field value of an invalid data. Make sure the data is an array, TMap, TList, or object that contains the specified field '%s'.
+datafieldaccessor_datafield_invalid = TDataFieldAccessor is trying to evaluate data value of an unknown field '%s'.
repeateritemcollection_repeateritem_required = TRepeaterItemCollection can only accept TRepeaterItem objects.
diff --git a/framework/Web/UI/WebControls/TDataGridColumn.php b/framework/Web/UI/WebControls/TDataGridColumn.php index 925fa90b..6e18a18f 100644 --- a/framework/Web/UI/WebControls/TDataGridColumn.php +++ b/framework/Web/UI/WebControls/TDataGridColumn.php @@ -256,19 +256,10 @@ abstract class TDataGridColumn extends TComponent */
protected function getDataFieldValue($data,$field)
{
- if(is_array($data))
- return $data[$field];
- else if(($data instanceof TMap) || ($data instanceof TList))
- return $data->itemAt($field);
- else if(($data instanceof TComponent) && $data->canGetProperty($field))
- {
- $getter='get'.$field;
- return $data->$getter();
- }
- else
- throw new TInvalidDataValueException('datagridcolumn_data_invalid',get_class($this),$field);
+ return TDataFieldAccessor::getDataFieldValue($data,$field);
}
+
/**
* Initializes the specified cell to its initial values.
* The default implementation sets the content of header and footer cells.
diff --git a/framework/core.php b/framework/core.php index 3f5493d5..e43b1168 100644 --- a/framework/core.php +++ b/framework/core.php @@ -46,6 +46,10 @@ require_once(PRADO_DIR.'/Web/THttpUtility.php'); */
require_once(PRADO_DIR.'/Data/TCache.php');
/**
+ * Includes TDataFieldAccessor definition
+ */
+require_once(PRADO_DIR.'/Data/TDataFieldAccessor.php');
+/**
* Includes TLogger definition
*/
require_once(PRADO_DIR.'/Log/TLogger.php');
|