CCodeModel
包 | system.gii |
---|---|
继承 | abstract class CCodeModel » CFormModel » CModel » CComponent |
实现 | IteratorAggregate, Traversable, ArrayAccess |
可用自 | 1.1.2 |
源码 | framework/gii/CCodeModel.php |
Each code generator should have at least one code model class that extends from this class. The purpose of a code model is to represent user-supplied parameters and use them to generate customized code.
Derived classes should implement the prepare method whose main task is to fill up the files property based on the user parameters.
The files property should be filled with a set of CCodeFile instances, each representing a single code file to be generated.
CCodeModel implements the feature of "sticky attributes". A sticky attribute is an attribute that can remember its last valid value, even if the user closes his browser window and reopen it. To declare an attribute is sticky, simply list it in a validation rule with the validator name being "sticky".
公共属性
属性 | 类型 | 描述 | 被定义在 |
---|---|---|---|
answers | array | user confirmations on whether to overwrite existing code files with the newly generated ones. | CCodeModel |
attributes | array | Returns all attribute values. | CModel |
errors | array | Returns the errors for all attribute or a single attribute. | CModel |
files | array | a list of CCodeFile objects that represent the code files to be generated. | CCodeModel |
iterator | CMapIterator | Returns an iterator for traversing the attributes in the model. | CModel |
keywords | CCodeModel | ||
safeAttributeNames | array | Returns the attribute names that are safe to be massively assigned. | CModel |
scenario | string | Returns the scenario that this model is used in. | CModel |
status | integer | the status of this model. | CCodeModel |
stickyFile | string | the file path that stores the sticky attribute values. | CCodeModel |
template | string | the name of the code template that the user has selected. | CCodeModel |
templatePath | string | the directory that contains the template files. | CCodeModel |
templates | array | Returns a list of available code templates (name=>directory). | CCodeModel |
validatorList | CList | Returns all the validators declared in the model. | CModel |
validators | array | Returns the validators applicable to the current scenario. | CModel |
公共方法
方法 | 描述 | 被定义在 |
---|---|---|
__call() | Calls the named method which is not a class method. | CComponent |
__construct() | Constructor. | CFormModel |
__get() | Returns a property value, an event handler list or a behavior based on its name. | CComponent |
__isset() | Checks if a property value is null. | CComponent |
__set() | Sets value of a component property. | CComponent |
__unset() | Sets a component property to be null. | CComponent |
addError() | Adds a new error to the specified attribute. | CModel |
addErrors() | Adds a list of errors. | CModel |
asa() | Returns the named behavior object. | CComponent |
attachBehavior() | Attaches a behavior to this component. | CComponent |
attachBehaviors() | Attaches a list of behaviors to the component. | CComponent |
attachEventHandler() | Attaches an event handler to an event. | CComponent |
attributeLabels() | Declares the model attribute labels. | CCodeModel |
attributeNames() | Returns the list of attribute names. | CFormModel |
behaviors() | Returns a list of behaviors that this model should behave as. | CModel |
canGetProperty() | Determines whether a property can be read. | CComponent |
canSetProperty() | Determines whether a property can be set. | CComponent |
class2id() | Converts a class name into a HTML ID. | CCodeModel |
class2name() | Converts a class name into space-separated words. | CCodeModel |
class2var() | Converts a class name into a variable name with the first letter in lower case. | CCodeModel |
classExists() | Checks if the named class exists (in a case sensitive manner). | CCodeModel |
clearErrors() | Removes errors for all attributes or a single attribute. | CModel |
confirmed() | CCodeModel | |
createValidators() | Creates validator objects based on the specification in rules. | CModel |
detachBehavior() | Detaches a behavior from the component. | CComponent |
detachBehaviors() | Detaches all behaviors from the component. | CComponent |
detachEventHandler() | Detaches an existing event handler. | CComponent |
disableBehavior() | Disables an attached behavior. | CComponent |
disableBehaviors() | Disables all behaviors attached to this component. | CComponent |
enableBehavior() | Enables an attached behavior. | CComponent |
enableBehaviors() | Enables all behaviors attached to this component. | CComponent |
errorMessage() | Returns the message to be displayed when some error occurred during code file saving. | CCodeModel |
evaluateExpression() | Evaluates a PHP expression or callback under the context of this component. | CComponent |
generateAttributeLabel() | Generates a user friendly attribute label. | CModel |
getAttributeLabel() | Returns the text label for the specified attribute. | CModel |
getAttributes() | Returns all attribute values. | CModel |
getError() | Returns the first error of the specified attribute. | CModel |
getErrors() | Returns the errors for all attribute or a single attribute. | CModel |
getEventHandlers() | Returns the list of attached event handlers for an event. | CComponent |
getIterator() | Returns an iterator for traversing the attributes in the model. | CModel |
getSafeAttributeNames() | Returns the attribute names that are safe to be massively assigned. | CModel |
getScenario() | Returns the scenario that this model is used in. | CModel |
getStickyFile() | Returns the file path that stores the sticky attribute values. | CCodeModel |
getTemplatePath() | Returns the directory that contains the template files. | CCodeModel |
getTemplates() | Returns a list of available code templates (name=>directory). | CCodeModel |
getValidatorList() | Returns all the validators declared in the model. | CModel |
getValidators() | Returns the validators applicable to the current scenario. | CModel |
hasErrors() | Returns a value indicating whether there is any validation error. | CModel |
hasEvent() | Determines whether an event is defined. | CComponent |
hasEventHandler() | Checks whether the named event has attached handlers. | CComponent |
hasProperty() | Determines whether a property is defined. | CComponent |
init() | Initializes this model. | CFormModel |
isAttributeRequired() | Returns a value indicating whether the attribute is required. | CModel |
isAttributeSafe() | Returns a value indicating whether the attribute is safe for massive assignments. | CModel |
loadStickyAttributes() | Loads sticky attributes from a file and populates them into the model. | CCodeModel |
offsetExists() | Returns whether there is an element at the specified offset. | CModel |
offsetGet() | Returns the element at the specified offset. | CModel |
offsetSet() | Sets the element at the specified offset. | CModel |
offsetUnset() | Unsets the element at the specified offset. | CModel |
onAfterConstruct() | This event is raised after the model instance is created by new operator. | CModel |
onAfterValidate() | This event is raised after the validation is performed. | CModel |
onBeforeValidate() | This event is raised before the validation is performed. | CModel |
onUnsafeAttribute() | This method is invoked when an unsafe attribute is being massively assigned. | CModel |
pluralize() | Converts a word to its plural form. | CCodeModel |
prepare() | Prepares the code files to be generated. | CCodeModel |
raiseEvent() | Raises an event. | CComponent |
render() | Generates the code using the specified code template file. | CCodeModel |
renderResults() | CCodeModel | |
requiredTemplates() | Returns a list of code templates that are required. | CCodeModel |
rules() | Declares the model validation rules. | CCodeModel |
save() | Saves the generated code into files. | CCodeModel |
saveStickyAttributes() | Saves sticky attributes into a file. | CCodeModel |
setAttributes() | Sets the attribute values in a massive way. | CModel |
setScenario() | Sets the scenario for the model. | CModel |
sticky() | The "sticky" validator. | CCodeModel |
successMessage() | Returns the message to be displayed when the newly generated code is saved successfully. | CCodeModel |
unsetAttributes() | Sets the attributes to be null. | CModel |
validate() | Performs the validation. | CModel |
validateReservedWord() | Validates an attribute to make sure it is not taking a PHP reserved keyword. | CCodeModel |
validateTemplate() | Validates the template selection. | CCodeModel |
受保护的方法
方法 | 描述 | 被定义在 |
---|---|---|
afterConstruct() | This method is invoked after a model instance is created by new operator. | CModel |
afterValidate() | This method is invoked after validation ends. | CModel |
beforeValidate() | This method is invoked before validation starts. | CModel |
事件
事件 | 描述 | 被定义在 |
---|---|---|
onAfterConstruct | This event is raised after the model instance is created by new operator. | CModel |
onBeforeValidate | This event is raised before the validation is performed. | CModel |
onAfterValidate | This event is raised after the validation is performed. | CModel |
onUnsafeAttribute | This method is invoked when an unsafe attribute is being massively assigned. | CModel |
属性详情
user confirmations on whether to overwrite existing code files with the newly generated ones. The value of this property is internally managed by this class and CCodeGenerator.
a list of CCodeFile objects that represent the code files to be generated. The prepare() method is responsible to populate this property.
the status of this model. T The value of this property is internally managed by CCodeGenerator.
the file path that stores the sticky attribute values.
the name of the code template that the user has selected. The value of this property is internally managed by this class and CCodeGenerator.
the directory that contains the template files.
Returns a list of available code templates (name=>directory). This method simply returns the CCodeGenerator::templates property value.
方法详情
public array attributeLabels()
| ||
{return} | array | the attribute labels |
public function attributeLabels()
{
return array(
'template'=>'Code Template',
);
}
Declares the model attribute labels. Child classes must override this method in the following format:
return array_merge(parent::attributeLabels(), array( ...labels for the child class attributes... ));
public string class2id(string $name)
| ||
$name | string | the string to be converted |
{return} | string | the resulting ID |
public function class2id($name)
{
return trim(strtolower(str_replace('_','-',preg_replace('/(?<![A-Z])[A-Z]/', '-\0', $name))),'-');
}
Converts a class name into a HTML ID. For example, 'PostTag' will be converted as 'post-tag'.
public string class2name(string $name, boolean $ucwords=true)
| ||
$name | string | the string to be converted |
$ucwords | boolean | whether to capitalize the first letter in each word |
{return} | string | the resulting words |
public function class2name($name,$ucwords=true)
{
$result=trim(strtolower(str_replace('_',' ',preg_replace('/(?<![A-Z])[A-Z]/', ' \0', $name))));
return $ucwords ? ucwords($result) : $result;
}
Converts a class name into space-separated words. For example, 'PostTag' will be converted as 'Post Tag'.
public string class2var(string $name)
| ||
$name | string | the class name |
{return} | string | the variable name converted from the class name |
public function class2var($name)
{
$name[0]=strtolower($name[0]);
return $name;
}
Converts a class name into a variable name with the first letter in lower case. This method is provided because lcfirst() PHP function is only available for PHP 5.3+.
public boolean classExists(string $name)
| ||
$name | string | class name to be checked |
{return} | boolean | whether the class exists |
public function classExists($name)
{
return class_exists($name,false) && in_array($name, get_declared_classes());
}
Checks if the named class exists (in a case sensitive manner).
public bool confirmed(CCodeFile $file)
| ||
$file | CCodeFile | whether the code file should be saved |
{return} | bool | whether the confirmation is found in answers with appropriate operation |
public function confirmed($file)
{
return $this->answers===null && $file->operation===CCodeFile::OP_NEW
|| is_array($this->answers) && isset($this->answers[md5($file->path)]);
}
public string errorMessage()
| ||
{return} | string | the message to be displayed when some error occurred during code file saving. |
public function errorMessage()
{
return 'There was some error when generating the code. Please check the following messages.';
}
Returns the message to be displayed when some error occurred during code file saving. Child classes should override this method if the message needs to be customized.
public string getStickyFile()
| ||
{return} | string | the file path that stores the sticky attribute values. |
public function getStickyFile()
{
return Yii::app()->runtimePath.'/gii-'.Yii::getVersion().'/'.get_class($this).'.php';
}
public string getTemplatePath()
| ||
{return} | string | the directory that contains the template files. |
public function getTemplatePath()
{
$templates=$this->getTemplates();
if(isset($templates[$this->template]))
return $templates[$this->template];
elseif(empty($templates))
throw new CHttpException(500,'No templates are available.');
else
throw new CHttpException(500,'Invalid template selection.');
}
public array getTemplates()
| ||
{return} | array | a list of available code templates (name=>directory). |
public function getTemplates()
{
return Yii::app()->controller->templates;
}
Returns a list of available code templates (name=>directory). This method simply returns the CCodeGenerator::templates property value.
public void loadStickyAttributes()
|
public function loadStickyAttributes()
{
$this->_stickyAttributes=array();
$path=$this->getStickyFile();
if(is_file($path))
{
$result=@include($path);
if(is_array($result))
{
$this->_stickyAttributes=$result;
foreach($this->_stickyAttributes as $name=>$value)
{
if(property_exists($this,$name) || $this->canSetProperty($name))
$this->$name=$value;
}
}
}
}
Loads sticky attributes from a file and populates them into the model.
public string pluralize(string $name)
| ||
$name | string | the word to be pluralized |
{return} | string | the pluralized word |
public function pluralize($name)
{
$rules=array(
'/(m)ove$/i' => '\1oves',
'/(f)oot$/i' => '\1eet',
'/(c)hild$/i' => '\1hildren',
'/(h)uman$/i' => '\1umans',
'/(m)an$/i' => '\1en',
'/(s)taff$/i' => '\1taff',
'/(t)ooth$/i' => '\1eeth',
'/(p)erson$/i' => '\1eople',
'/([m|l])ouse$/i' => '\1ice',
'/(x|ch|ss|sh|us|as|is|os)$/i' => '\1es',
'/([^aeiouy]|qu)y$/i' => '\1ies',
'/(?:([^f])fe|([lr])f)$/i' => '\1\2ves',
'/(shea|lea|loa|thie)f$/i' => '\1ves',
'/([ti])um$/i' => '\1a',
'/(tomat|potat|ech|her|vet)o$/i' => '\1oes',
'/(bu)s$/i' => '\1ses',
'/(ax|test)is$/i' => '\1es',
'/s$/' => 's',
);
foreach($rules as $rule=>$replacement)
{
if(preg_match($rule,$name))
return preg_replace($rule,$replacement,$name);
}
return $name.'s';
}
Converts a word to its plural form. Note that this is for English only! For example, 'apple' will become 'apples', and 'child' will become 'children'.
abstract public void prepare()
|
Prepares the code files to be generated. This is the main method that child classes should implement. It should contain the logic that populates the files property with a list of code files to be generated.
public string render(string $templateFile, array $_params_=NULL)
| ||
$templateFile | string | the code template file path |
$_params_ | array | a set of parameters to be extracted and made available in the code template |
{return} | string | the generated code |
public function render($templateFile,$_params_=null)
{
if(!is_file($templateFile))
throw new CException("The template file '$templateFile' does not exist.");
if(is_array($_params_))
extract($_params_,EXTR_PREFIX_SAME,'params');
else
$params=$_params_;
ob_start();
ob_implicit_flush(false);
require($templateFile);
return ob_get_clean();
}
Generates the code using the specified code template file. This method is manly used in generate to generate code.
public string renderResults()
| ||
{return} | string | the code generation result log. |
public function renderResults()
{
$output='Generating code using template "'.$this->templatePath."\"...\n";
foreach($this->files as $file)
{
if($file->error!==null)
$output.="<span class=\"error\">generating {$file->relativePath}<br/> {$file->error}</span>\n";
elseif($file->operation===CCodeFile::OP_NEW && $this->confirmed($file))
$output.=' generated '.$file->relativePath."\n";
elseif($file->operation===CCodeFile::OP_OVERWRITE && $this->confirmed($file))
$output.=' overwrote '.$file->relativePath."\n";
else
$output.=' skipped '.$file->relativePath."\n";
}
$output.="done!\n";
return $output;
}
public array requiredTemplates()
| ||
{return} | array | list of code templates that are required. They should be file paths relative to templatePath. |
Returns a list of code templates that are required. Derived classes usually should override this method.
public array rules()
| ||
{return} | array | validation rules |
public function rules()
{
return array(
array('template', 'required'),
array('template', 'validateTemplate', 'skipOnError'=>true),
array('template', 'sticky'),
);
}
Declares the model validation rules. Child classes must override this method in the following format:
return array_merge(parent::rules(), array( ...rules for the child class... ));
public void save()
|
public function save()
{
$result=true;
foreach($this->files as $file)
{
if($this->confirmed($file))
$result=$file->save() && $result;
}
return $result;
}
Saves the generated code into files.
public void saveStickyAttributes()
|
public function saveStickyAttributes()
{
$path=$this->getStickyFile();
@mkdir(dirname($path),0755,true);
file_put_contents($path,"<?php\nreturn ".var_export($this->_stickyAttributes,true).";\n");
}
Saves sticky attributes into a file.
public void sticky(string $attribute, array $params)
| ||
$attribute | string | the attribute to be validated |
$params | array | the validation parameters |
public function sticky($attribute,$params)
{
if(!$this->hasErrors())
$this->_stickyAttributes[$attribute]=$this->$attribute;
}
The "sticky" validator. This validator does not really validate the attributes. It actually saves the attribute value in a file to make it sticky.
public string successMessage()
| ||
{return} | string | the message to be displayed when the newly generated code is saved successfully. |
public function successMessage()
{
return 'The code has been generated successfully.';
}
Returns the message to be displayed when the newly generated code is saved successfully. Child classes should override this method if the message needs to be customized.
public void validateReservedWord(string $attribute, array $params)
| ||
$attribute | string | the attribute to be validated |
$params | array | validation parameters |
public function validateReservedWord($attribute,$params)
{
$value=$this->$attribute;
if(in_array(strtolower($value),self::$keywords))
$this->addError($attribute, $this->getAttributeLabel($attribute).' cannot take a reserved PHP keyword.');
}
Validates an attribute to make sure it is not taking a PHP reserved keyword.
public void validateTemplate(string $attribute, array $params)
| ||
$attribute | string | the attribute to be validated |
$params | array | validation parameters |
public function validateTemplate($attribute,$params)
{
$templates=$this->templates;
if(!isset($templates[$this->template]))
$this->addError('template', 'Invalid template selection.');
else
{
$templatePath=$this->templatePath;
foreach($this->requiredTemplates() as $template)
{
if(!is_file($templatePath.'/'.$template))
$this->addError('template', "Unable to find the required code template file '$template'.");
}
}
}
Validates the template selection. This method validates whether the user selects an existing template and the template contains all required template files as specified in requiredTemplates.