API CHANGE: DBField::hasValue() conflicts with ViewableData::hasValue(), use DBField::exists() instead.

model/DataObject.php

@@ -596,7 +596,7 @@ class DataObject extends ViewableData implements DataObjectInterface, i18nEntity
 				if(!array_key_exists($k, $customFields)) continue;
 				
 				$dbObj = ($v instanceof DBField) ? $v : $this->dbObject($k);
-				$isEmpty = ($isEmpty && !$dbObj->hasValue());
+				$isEmpty = ($isEmpty && !$dbObj->exists());
 			}
 		}
 		return $isEmpty;
@@ -3346,7 +3346,7 @@ class DataObject extends ViewableData implements DataObjectInterface, i18nEntity
  	function hasValue($field, $arguments = null, $cache = true) {
  		$obj = $this->dbObject($field);
  		if($obj) {
- 			return $obj->hasValue();
+ 			return $obj->exists();
  		} else {
  			return parent::hasValue($field, $arguments, $cache);
  		}

model/fieldtypes/CompositeDBField.php

@@ -177,6 +177,6 @@ interface CompositeDBField {
 	 * 
 	 * @return boolean
 	 */
-	function hasValue();
+	function exists();
 	
 }

model/fieldtypes/DBField.php

@@ -120,6 +120,7 @@ abstract class DBField extends ViewableData {
 		$this->value = $value;
 	}
 	
+	
 	/**
 	 * Determines if the field has a value which
 	 * is not considered to be 'null' in
@@ -127,15 +128,8 @@ abstract class DBField extends ViewableData {
 	 * 
 	 * @return boolean
 	 */
-	function hasValue() {
-		return ($this->value);
-	}
-	
-	/**
-	 * @return bool
-	 */
 	public function exists() {
-		return $this->hasValue();
+		return ($this->value);
 	}
 	
 	/**
@@ -167,7 +161,7 @@ abstract class DBField extends ViewableData {
 	 * @param array $manipulation
 	 */
 	function writeToManipulation(&$manipulation) {
-		$manipulation['fields'][$this->name] = $this->hasValue() ? $this->prepValueForDB($this->value) : $this->nullValue();
+		$manipulation['fields'][$this->name] = $this->exists() ? $this->prepValueForDB($this->value) : $this->nullValue();
 	}
 	
 	/**

model/fieldtypes/HTMLText.php

@@ -128,8 +128,8 @@ class HTMLText extends Text {
 		return ShortcodeParser::get_active()->parse($this->value);
 	}
 	
-	public function hasValue() {
+	public function exists() {
-		return parent::hasValue() && $this->value != '<p></p>';
+		return parent::exists() && $this->value != '<p></p>';
 	}
 	
 	public function scaffoldFormField($title = null, $params = null) {

model/fieldtypes/HTMLVarchar.php

@@ -14,8 +14,8 @@ class HTMLVarchar extends Varchar {
 		return ShortcodeParser::get_active()->parse($this->value);
 	}
 	
-	public function hasValue() {
+	public function exists() {
-		return parent::hasValue() && $this->value != '<p></p>';
+		return parent::exists() && $this->value != '<p></p>';
 	}
 	
 	public function scaffoldFormField($title = null, $params = null) {

model/fieldtypes/Money.php

@@ -190,7 +190,7 @@ class Money extends DBField implements CompositeDBField {
 	/**
 	 * @return boolean
 	 */
-	function hasValue() {
+	function exists() {
 		return ($this->getCurrency() && is_numeric($this->getAmount()));
 	}
 	

model/fieldtypes/StringField.php

@@ -64,9 +64,9 @@ abstract class StringField extends DBField {
 
 	/**
 	 * (non-PHPdoc)
-	 * @see core/model/fieldtypes/DBField#hasValue()
+	 * @see core/model/fieldtypes/DBField#exists()
 	 */
-	function hasValue() {
+	function exists() {
 		return ($this->value || $this->value == '0') || ( !$this->nullifyEmpty && $this->value === '');
 	}
 

model/fieldtypes/Varchar.php

@@ -56,7 +56,7 @@ class Varchar extends StringField {
 	 * Return the first letter of the string followed by a .
 	 */
 	function Initial() {
-		if($this->hasValue()) return $this->value[0] . '.';
+		if($this->exists()) return $this->value[0] . '.';
 	}
 	
 	/**

tests/model/DBFieldTest.php

@@ -157,42 +157,42 @@ class DBFieldTest extends SapphireTest {
 		$this->assertEquals("00:00:00", $time->getValue());
 	}
 	
-	function testHasValue() {
+	function testExists() {
 		$varcharField = new Varchar("testfield");
 		$this->assertTrue($varcharField->getNullifyEmpty());
 		$varcharField->setValue('abc');
-		$this->assertTrue($varcharField->hasValue());
+		$this->assertTrue($varcharField->exists());
 		$varcharField->setValue('');
-		$this->assertFalse($varcharField->hasValue());
+		$this->assertFalse($varcharField->exists());
 		$varcharField->setValue(null);
-		$this->assertFalse($varcharField->hasValue());
+		$this->assertFalse($varcharField->exists());
 		
 		$varcharField = new Varchar("testfield", 50, array('nullifyEmpty'=>false));
 		$this->assertFalse($varcharField->getNullifyEmpty());
 		$varcharField->setValue('abc');
-		$this->assertTrue($varcharField->hasValue());
+		$this->assertTrue($varcharField->exists());
 		$varcharField->setValue('');
-		$this->assertTrue($varcharField->hasValue());
+		$this->assertTrue($varcharField->exists());
 		$varcharField->setValue(null);
-		$this->assertFalse($varcharField->hasValue());
+		$this->assertFalse($varcharField->exists());
 
 		$textField = new Text("testfield");
 		$this->assertTrue($textField->getNullifyEmpty());
 		$textField->setValue('abc');
-		$this->assertTrue($textField->hasValue());
+		$this->assertTrue($textField->exists());
 		$textField->setValue('');
-		$this->assertFalse($textField->hasValue());
+		$this->assertFalse($textField->exists());
 		$textField->setValue(null);
-		$this->assertFalse($textField->hasValue());
+		$this->assertFalse($textField->exists());
 		
 		$textField = new Text("testfield", array('nullifyEmpty'=>false));
 		$this->assertFalse($textField->getNullifyEmpty());
 		$textField->setValue('abc');
-		$this->assertTrue($textField->hasValue());
+		$this->assertTrue($textField->exists());
 		$textField->setValue('');
-		$this->assertTrue($textField->hasValue());
+		$this->assertTrue($textField->exists());
 		$textField->setValue(null);
-		$this->assertFalse($textField->hasValue());
+		$this->assertFalse($textField->exists());
 	}
 	
 	function testStringFieldsWithMultibyteData() {

tests/model/MoneyTest.php

@@ -207,23 +207,23 @@ class MoneyTest extends SapphireTest {
 		);
 	}
 	
-	function testHasValue() {
+	function testExists() {
 		$m1 = new Money();
-		$this->assertFalse($m1->hasValue());
+		$this->assertFalse($m1->exists());
 		
 		$m2 = new Money();
 		$m2->setValue(array(
 			'Currency' => 'EUR',
 			'Amount' => 3.44
 		));
-		$this->assertTrue($m2->hasValue());
+		$this->assertTrue($m2->exists());
 		
 		$m3 = new Money();
 		$m3->setValue(array(
 			'Currency' => 'EUR',
 			'Amount' => 0
 		));
-		$this->assertTrue($m3->hasValue());
+		$this->assertTrue($m3->exists());
 	}
 
 	function testLoadIntoDataObject() {