CacheDBImpl Class Reference
[Model]
An implememtation of cache as DB table. More...
Inheritance diagram for CacheDBImpl:
Public Member Functions |
|
| clear ($cache_keys=NULL) | |
| Clear the cache. |
|
| is_cached ($cache_keys) | |
| Returns true, if item is chaced. |
|
| read ($cache_keys) | |
| Read from cache. |
|
| remove_expired () | |
| Removes expired cache entries. |
|
| store ($cache_keys, $content, $cache_life_time, $data= '', $is_compressed=false) | |
| Store content in cache. |
|
Detailed Description
An implememtation of cache as DB table.
Definition at line 8 of file cache.db.impl.php.
Member Function Documentation
| CacheDBImpl::clear | ( | $ | cache_keys = NULL |
) |
Clear the cache.
- Parameters:
-
Mixed A set of key params, may be an array or a string. If NULL, all is cleared
Implements ICachePersister.
Definition at line 90 of file cache.db.impl.php.
00090 { 00091 $dao = new DAOCache(); 00092 if (!empty($cache_keys)) { 00093 $keys = $this->extract_keys($cache_keys); 00094 $dao->set_keys($keys, true); 00095 } 00096 $dao->delete(DAOCache::WHERE_ONLY); 00097 }
| CacheDBImpl::is_cached | ( | $ | cache_keys | ) |
Returns true, if item is chaced.
Implements ICachePersister.
Definition at line 14 of file cache.db.impl.php.
00014 { 00015 $dao = new DAOCache(); 00016 $dao->add_where('content_gzip', DBWhere::OP_NOT_NULL); 00017 $dao->set_keys($this->extract_keys($cache_keys)); 00018 $dao->add_where('expirationdate', '>', DBFieldDateTime::NOW); 00019 00020 if ($dao->find(DAOCache::AUTOFETCH)) { 00021 $this->cache_item = $dao; 00022 return true; 00023 } 00024 else { 00025 $this->cache_item = false; 00026 return false; 00027 } 00028 }
| CacheDBImpl::read | ( | $ | cache_keys | ) |
Read from cache.
- Parameters:
-
Mixed A set of key params, may be an array or a string
- Returns:
- ICacheItem The cache as array with members "content" and "data", false if cache is not found
Implements ICachePersister.
Definition at line 36 of file cache.db.impl.php.
00036 { 00037 $dao = new DAOCache(); 00038 $dao->add_where('content_gzip', DBWhere::OP_NOT_NULL); 00039 $dao->set_keys($this->extract_keys($cache_keys)); 00040 $dao->add_where('expirationdate', '>', DBFieldDateTime::NOW); 00041 00042 if ($dao->find(DAOCache::AUTOFETCH)) { 00043 return $dao; 00044 } 00045 else { 00046 return false; 00047 } 00048 }
| CacheDBImpl::remove_expired | ( | ) |
Removes expired cache entries.
Implements ICachePersister.
Definition at line 117 of file cache.db.impl.php.
00117 { 00118 $dao = new DAOCache(); 00119 $dao->add_where('expirationdate', '<', DBFieldDateTime::NOW); 00120 $dao->delete(DAOCache::WHERE_ONLY); 00121 }
| CacheDBImpl::store | ( | $ | cache_keys, | |
| $ | content, | |||
| $ | cache_life_time, | |||
| $ | data = '', |
|||
| $ | is_compressed = false |
|||
| ) |
Store content in cache.
- Parameters:
-
Mixed A set of key params, may be an array or a string string The cache
Implements ICachePersister.
Definition at line 56 of file cache.db.impl.php.
00056 { 00057 try { 00058 // Clear old items 00059 $this->remove_expired(); 00060 $dao = new DAOCache(); 00061 $dao->set_keys($this->extract_keys($cache_keys)); 00062 $update = $dao->find(DAOCache::AUTOFETCH); 00063 00064 if ($is_compressed) { 00065 $dao->set_content_compressed($content); 00066 } 00067 else { 00068 $dao->set_content_plain($content); 00069 } 00070 $dao->data = $data; 00071 $dao->expirationdate = time() + $cache_life_time; 00072 if ($update) { 00073 $dao->update(); 00074 } 00075 else { 00076 $dao->insert(); 00077 } 00078 } 00079 catch (Exception $ex) { 00080 // If inserting into cache fails, just resume application! 00081 @error_log($ex->getMessage()); 00082 } 00083 }
The documentation for this class was generated from the following file:
- gyro/core/model/classes/cache.db.impl.php