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+ add hook support for model extension.

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wangchunsheng
2012-06-08 01:57:14 +00:00
parent 9ba76ccac5
commit f0730d6552
1 changed files with 94 additions and 35 deletions
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129
framework/helper.class.php
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@@ -142,55 +142,114 @@ class helper
{
global $app;
/* Set the main model file and extension path and files. */
/* Set the main model file and extension and hook pathes and files. */
$mainModelFile = $app->getModulePath($moduleName) . 'model.php';
$modelExtPath = $app->getModuleExtPath($moduleName, 'model');
$modelHookPath = $modelExtPath . 'hook/';
$extFiles = helper::ls($modelExtPath, '.php');
$hookFiles = helper::ls($modelHookPath, '.php');
/* If no extension file, return the main file directly. */
if(empty($extFiles)) return $mainModelFile;
/* If no extension files and no hook files, return the main file directly. */
if(empty($extFiles) and empty($hookFiles)) return $mainModelFile;
/* Else, judge whether needed update or not .*/
$mergedModelFile = $app->getTmpRoot() . 'model' . $app->getPathFix() . $moduleName . '.php';
$needUpdate = false;
$mergedModelFile = $app->getTmpRoot() . 'model' . $app->getPathFix() . $moduleName . '.php';
$lastTime = file_exists($mergedModelFile) ? filemtime($mergedModelFile) : 0;
foreach($extFiles as $extFile)
while(!$needUpdate)
{
if(filemtime($extFile) > $lastTime)
{
$needUpdate = true;
break;
}
}
if(filemtime($mainModelFile) > $lastTime) $needUpdate = true;
foreach($extFiles as $extFile) if(filemtime($extFile) > $lastTime) break 2;
foreach($hookFiles as $hookFile) if(filemtime($hookFile) > $lastTime) break 2;
/* If need'nt update, return the cache file. */
if(!$needUpdate) return $mergedModelFile;
if(is_dir($modelExtPath ) and filemtime($modelExtPath) > $lastTime) break;
if(is_dir($modelHookPath) and filemtime($modelHookPath) > $lastTime) break;
/* Update the cache file. */
if($needUpdate)
{
$modelClass = $moduleName . 'Model';
$extModelClass = 'ext' . $modelClass;
$modelLines = trim(file_get_contents($mainModelFile));
$modelLines = rtrim($modelLines, '?>'); // To make sure the last end tag is removed.
$modelLines .= "class $extModelClass extends $modelClass {\n";
/* Cycle all the extension files. */
foreach($extFiles as $extFile)
{
$extLines = trim(file_get_contents($extFile));
if(strpos($extLines, '<?php') !== false) $extLines = ltrim($extLines, '<?php');
if(strpos($extLines, '?>') !== false) $extLines = rtrim($extLines, '?>');
$modelLines .= $extLines . "\n";
}
/* Create the merged model file. */
$modelLines .= "}";
file_put_contents($mergedModelFile, $modelLines);
if(filemtime($mainModelFile) > $lastTime) break;
return $mergedModelFile;
}
/* Update the cache file. */
$modelClass = $moduleName . 'Model';
$extModelClass = 'ext' . $modelClass;
$extTmpModelClass = 'tmpExt' . $modelClass;
$modelLines = "<?php\n";
$modelLines .= "helper::import('$mainModelFile');\n";
$modelLines .= "class $extTmpModelClass extends $modelClass \n{\n";
/* Cycle all the extension files. */
foreach($extFiles as $extFile)
{
$extLines = self::removeTagsOfPHP($extFile);
$modelLines .= $extLines . "\n";
}
/* Create the merged model file and import it. */
$replaceMark = '//**//'; // This mark is for replacing code using.
$modelLines .= "$replaceMark\n}";
file_put_contents($mergedModelFile, $modelLines);
include $mergedModelFile;
/* Get hook codes need to merge. */
$hookCodes = array();
foreach($hookFiles as $hookFile)
{
$fileName = baseName($hookFile);
list($method) = explode('.', $fileName);
$hookCodes[$method][] = self::removeTagsOfPHP($hookFile);
}
/* Cycle the hook methods and merge hook codes. */
$hookedMethods = array_keys($hookCodes);
$mainModelCodes = file($mainModelFile);
$mergedModelCodes = file($mergedModelFile);
foreach($hookedMethods as $method)
{
/* Reflection the hooked method to get it's defined position. */
$methodRelfection = new reflectionMethod($extTmpModelClass, $method);
$definedFile = $methodRelfection->getFileName();
$startLine = $methodRelfection->getStartLine() . ' ';
$endLine = $methodRelfection->getEndLine() . ' ';
/* Merge hook codes. */
$oldCodes = $definedFile == $mergedModelFile ? $mergedModelCodes : $mainModelCodes;
$oldCodes = join("", array_slice($oldCodes, $startLine - 1, $endLine - $startLine + 1));
$openBrace = strpos($oldCodes, '{');
$newCodes = substr($oldCodes, 0, $openBrace + 1) . "\n" . join("\n", $hookCodes[$method]) . substr($oldCodes, $openBrace + 1);
/* Replace it. */
if($definedFile == $mergedModelFile)
{
$modelLines = str_replace($oldCodes, $newCodes, $modelLines);
}
else
{
$modelLines = str_replace($replaceMark, $newCodes . "\n$replaceMark", $modelLines);
}
}
/* Save it. */
$modelLines = str_replace($extTmpModelClass, $extModelClass, $modelLines);
file_put_contents($mergedModelFile, $modelLines);
return $mergedModelFile;
}
/**
* Remove tags of PHP
*
* @param string $fileName
* @static
* @access public
* @return string
*/
static public function removeTagsOfPHP($fileName)
{
$code = trim(file_get_contents($fileName));
if(strpos($code, '<?php') === 0) $code = ltrim($code, '<?php');
if(strrpos($code, '?>') !== false) $code = rtrim($code, '?>');
return trim($code);
}
/**