      1: <?php
      2:
      3: /**
      4:  * An interface that defines all of the Data Access Object (DAO) methods that should be
      5:  * included in a provider that implements this interface.
      6:  *
      7:  * @package alpha::model
      8:  * @since 1.1
      9:  * @author John Collins <dev@alphaframework.org>
     10:  * @version $Id: AlphaDAOProviderInterface.inc 1524 2012-05-10 12:58:19Z alphadev $
     11:  * @license http://www.opensource.org/licenses/bsd-license.php The BSD License
     12:  * @copyright Copyright (c) 2012, John Collins (founder of Alpha Framework).
     13:  * All rights reserved.
     14:  *
     15:  * <pre>
     16:  * Redistribution and use in source and binary forms, with or
     17:  * without modification, are permitted provided that the
     18:  * following conditions are met:
     19:  *
     20:  * * Redistributions of source code must retain the above
     21:  *   copyright notice, this list of conditions and the
     22:  *   following disclaimer.
     23:  * * Redistributions in binary form must reproduce the above
     24:  *   copyright notice, this list of conditions and the
     25:  *   following disclaimer in the documentation and/or other
     26:  *   materials provided with the distribution.
     27:  * * Neither the name of the Alpha Framework nor the names
     28:  *   of its contributors may be used to endorse or promote
     29:  *   products derived from this software without specific
     30:  *   prior written permission.
     31:  *
     32:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
     33:  * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
     34:  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     35:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     36:  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
     37:  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     38:  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     39:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     40:  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     41:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     42:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     43:  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     44:  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     45:  * </pre>
     46:  *
     47:  */
     48: interface AlphaDAOProviderInterface {
     49:     /**
     50:      * Gets the current connection singleton, or creates a new one if none exists
     51:      *
     52:      * @return mysqli
     53:      * @since 1.1
     54:      */
     55:     public static function getConnection();
     56:
     57:     /**
     58:      * Disconnects the current database connection if one exists (self::$connection is set)
     59:      *
     60:      * @since 1.1
     61:      */
     62:     public static function disconnect();
     63:
     64:     /**
     65:      * Returns the last database error string for the current connection.
     66:      *
     67:      * @since 1.1
     68:      * @return string
     69:      */
     70:     public static function getLastDatabaseError();
     71:
     72:     /**
     73:      * Populates the child object with the properties retrived from the database for the object $OID.
     74:      *
     75:      * @param integer $OID The object ID of the business object to load.
     76:      * @since 1.1
     77:      * @throws BONotFoundException
     78:      */
     79:     public function load($OID);
     80:
     81:     /**
     82:      * Populates the child object from the database table by the given attribute value.
     83:      *
     84:      * @param string $atribute The name of the attribute to load the object by.
     85:      * @param string $value The value of the attribute to load the object by.
     86:      * @param boolean $ignoreClassType Default is false, set to true if you want to load from overloaded tables and ignore the class type
     87:      * @param array $loadAttributes The attributes to load from the database to this object (leave blank to load all attributes)
     88:      * @since 1.1
     89:      * @throws BONotFoundException
     90:      */
     91:     public function loadByAttribute($attribute, $value, $ignoreClassType=false, $loadAttributes=array());
     92:
     93:     /**
     94:      * Loads all of the objects of this class into an array which is returned.
     95:      *
     96:      * @param integer $start The start of the SQL LIMIT clause, useful for pagination.
     97:      * @param integer $limit The amount (limit) of objects to load, useful for pagination.
     98:      * @param string $orderBy The name of the field to sort the objects by.
     99:      * @param string $order The order to sort the objects by.
    100:      * @param boolean $ignoreClassType Default is false, set to true if you want to load from overloaded tables and ignore the class type
    101:      * @return array An array containing objects of this type of business object.
    102:      * @since 1.1
    103:      * @throws BONotFoundException
    104:      */
    105:     public function loadAll($start=0, $limit=0, $orderBy='OID', $order='ASC', $ignoreClassType=false);
    106:
    107:     /**
    108:      * Loads all of the objects of this class by the specified attribute into an array which is returned.
    109:      *
    110:      * @param string $atribute The attribute to load the objects by.
    111:      * @param string $value The value of the attribute to load the objects by.
    112:      * @param integer $start The start of the SQL LIMIT clause, useful for pagination.
    113:      * @param integer $limit The amount (limit) of objects to load, useful for pagination.
    114:      * @param string $orderBy The name of the field to sort the objects by.
    115:      * @param string $order The order to sort the objects by.
    116:      * @param boolean $ignoreClassType Default is false, set to true if you want to load from overloaded tables and ignore the class type.
    117:      * @param array $constructorArgs An optional array of contructor arguements to pass to the BOs that will be generated and returned.  Supports a maximum of 5 arguements.
    118:      * @return array An array containing objects of this type of business object.
    119:      * @since 1.1
    120:      * @throws BONotFoundException
    121:      * @throws IllegalArguementException
    122:      */
    123:     public function loadAllByAttribute($attribute, $value, $start=0, $limit=0, $orderBy="OID", $order="ASC", $ignoreClassType=false, $constructorArgs=array());
    124:
    125:     /**
    126:      * Loads all of the objects of this class by the specified attributes into an array which is returned.
    127:      *
    128:      * @param array $atributes The attributes to load the objects by.
    129:      * @param array $values The values of the attributes to load the objects by.
    130:      * @param integer $start The start of the SQL LIMIT clause, useful for pagination.
    131:      * @param integer $limit The amount (limit) of objects to load, useful for pagination.
    132:      * @param string $orderBy The name of the field to sort the objects by.
    133:      * @param string $order The order to sort the objects by.
    134:      * @param boolean $ignoreClassType Default is false, set to true if you want to load from overloaded tables and ignore the class type
    135:      * @return array An array containing objects of this type of business object.
    136:      * @since 1.1
    137:      * @throws BONotFoundException
    138:      * @throws IllegalArguementException
    139:      */
    140:     public function loadAllByAttributes($attributes=array(), $values=array(), $start=0, $limit=0, $orderBy='OID', $order='ASC', $ignoreClassType=false);
    141:
    142:     /**
    143:      * Loads all of the objects of this class that where updated (updated_ts value) on the date indicated.
    144:      *
    145:      * @param string $date The date for which to load the objects updated on, in the format 'YYYY-MM-DD'.
    146:      * @param integer $start The start of the SQL LIMIT clause, useful for pagination.
    147:      * @param integer $limit The amount (limit) of objects to load, useful for pagination.
    148:      * @param string $orderBy The name of the field to sort the objects by.
    149:      * @param string $order The order to sort the objects by.
    150:      * @param boolean $ignoreClassType Default is false, set to true if you want to load from overloaded tables and ignore the class type
    151:      * @return array An array containing objects of this type of business object.
    152:      * @since 1.1
    153:      * @throws BONotFoundException
    154:      */
    155:     public function loadAllByDayUpdated($date, $start=0, $limit=0, $orderBy="OID", $order="ASC", $ignoreClassType=false);
    156:
    157:     /**
    158:      * Loads all of the specified attribute values of this class by the specified attribute into an
    159:      * array which is returned.
    160:      *
    161:      * @param string $attribute The attribute name to load the field values by.
    162:      * @param string $value The value of the attribute to load the field values by.
    163:      * @param string $returnAttribute The name of the attribute to return.
    164:      * @param string $order The order to sort the BOs by.
    165:      * @param boolean $ignoreClassType Default is false, set to true if you want to load from overloaded tables and ignore the class type.
    166:      * @return array An array of field values.
    167:      * @since 1.1
    168:      * @throws BONotFoundException
    169:      */
    170:     public function loadAllFieldValuesByAttribute($attribute, $value, $returnAttribute, $order='ASC', $ignoreClassType=false);
    171:
    172:     /**
    173:      * Saves the object.  If $this->OID is empty or null it will INSERT, otherwise UPDATE.
    174:      *
    175:      * @since 1.1
    176:      * @throws FailedSaveException
    177:      * @throws LockingException
    178:      * @throws ValidationException
    179:      */
    180:     public function save();
    181:
    182:     /**
    183:      * Saves the field specified with the value supplied.  Only works for persistent BOs.  Note that no Alpha type
    184:      * validation is performed with this method!
    185:      *
    186:      * @param string $attribute The name of the attribute to save.
    187:      * @param mixed $value The value of the attribute to save.
    188:      * @since 1.1
    189:      * @throws IllegalArguementException
    190:      * @throws FailedSaveException
    191:      */
    192:     public function saveAttribute($attribute, $value);
    193:
    194:         /**
    195:          * Saves the object history to the [tablename]_history table. It always does an INSERT.
    196:          *
    197:          * @since 1.2
    198:          * @throws FailedSaveException
    199:          */
    200:     public function saveHistory();
    201:
    202:     /**
    203:      * Deletes the current object from the database.
    204:      *
    205:      * @since 1.1
    206:      * @throws FailedDeleteException
    207:      */
    208:     public function delete();
    209:
    210:     /**
    211:      * Gets the version_num of the object from the database (returns 0 if the BO is not saved yet).
    212:      *
    213:      * @return integer
    214:      * @since 1.1
    215:      * @throws BONotFoundException
    216:      */
    217:     public function getVersion();
    218:
    219:     /**
    220:      * Builds a new database table for the BO class.
    221:      *
    222:      * @since 1.1
    223:      * @throws AlphaException
    224:      */
    225:     public function makeTable();
    226:
    227:         /**
    228:          * Builds a new database table for the BO class to store it's history
    229:          *
    230:          * @since 1.2
    231:          * @throws AlphaException
    232:          */
    233:         public function makeHistoryTable();
    234:
    235:     /**
    236:      * Re-builds the table if the model requirements have changed.  All data is lost!
    237:      *
    238:      * @since 1.1
    239:      * @throws AlphaException
    240:      */
    241:     public function rebuildTable();
    242:
    243:     /**
    244:      * Drops the table if the model requirements have changed.  All data is lost!
    245:      *
    246:      * @since 1.1
    247:      * @param string $tableName Optional table name, leave blank for the defined table for this class to be dropped
    248:      * @throws AlphaException
    249:      */
    250:     public function dropTable($tableName=null);
    251:
    252:     /**
    253:      * Adds in a new class property without loosing existing data (does an ALTER TABLE query on the
    254:      * database).
    255:      *
    256:      * @param string $propName The name of the new field to add to the database table.
    257:      * @since 1.1
    258:      * @throws AlphaException
    259:      */
    260:     public function addProperty($propName);
    261:
    262:     /**
    263:      * Gets the maximum OID value from the database for this class type.
    264:      *
    265:      * @return integer The maximum OID value in the class table.
    266:      * @since 1.1
    267:      * @throws AlphaException
    268:      */
    269:     public function getMAX();
    270:
    271:     /**
    272:      * Gets the count from the database for the amount of objects of this class.
    273:      *
    274:      * @param array $atributes The attributes to count the objects by (optional).
    275:      * @param array $values The values of the attributes to count the objects by (optional).
    276:      * @return integer
    277:      * @since 1.1
    278:      * @throws AlphaException
    279:      */
    280:     public function getCount($attributes=array(), $values=array());
    281:
    282:         /**
    283:          * Gets the count from the database for the amount of entries in the [tableName]_history table for this business object.  Only call
    284:      * this method on classes where maintainHistory = true, otherwise an exception will be thrown.
    285:          *
    286:          * @return integer
    287:          * @since 1.2
    288:          * @throws AlphaException
    289:          */
    290:         public function getHistoryCount();
    291:
    292:     /**
    293:      * Populate all of the enum options for this object from the database.
    294:      *
    295:      * @since 1.1
    296:      * @throws AlphaException
    297:      */
    298:     public function setEnumOptions();
    299:
    300:     /**
    301:      * Checks to see if the table exists in the database for the current business class.
    302:      *
    303:      * @param boolean $checkHistoryTable Set to true if you want to check for the existance of the _history table for this DAO.
    304:      * @return boolean
    305:      * @since 1.1
    306:      * @throws AlphaException
    307:      */
    308:     public function checkTableExists($checkHistoryTable = false);
    309:
    310:     /**
    311:      * Static method to check the database and see if the table for the indicated BO class name
    312:      * exists (assumes table name will be $BOClassName less "Object").
    313:      *
    314:      * @param string $BOClassName The name of the business object class we are checking.
    315:      * @param boolean $checkHistoryTable Set to true if you want to check for the existance of the _history table for this DAO.
    316:      * @return boolean
    317:      * @since 1.1
    318:      * @throws AlphaException
    319:      */
    320:     public static function checkBOTableExists($BOClassName, $checkHistoryTable = false);
    321:
    322:     /**
    323:      * Checks to see if the table in the database matches (for fields) the business class definition, i.e. if the
    324:      * database table is in sync with the class definition.
    325:      *
    326:      * @return boolean
    327:      * @since 1.1
    328:      * @throws AlphaException
    329:      */
    330:     public function checkTableNeedsUpdate();
    331:
    332:     /**
    333:      * Returns an array containing any properties on the class which have not been created on the database
    334:      * table yet.
    335:      *
    336:      * @return array An array of missing fields in the database table.
    337:      * @since 1.1
    338:      * @throws AlphaException
    339:      */
    340:     public function findMissingFields();
    341:
    342:     /**
    343:      * Gets an array of all of the names of the active database indexes for this class.
    344:      *
    345:      * @return array An array of database indexes on this table.
    346:      * @since 1.1
    347:      * @throws AlphaException
    348:      */
    349:     public function getIndexes();
    350:
    351:     /**
    352:      * Creates a foreign key constraint (index) in the database on the given attribute.
    353:      *
    354:      * @param string $attributeName The name of the attribute to apply the index on.
    355:      * @param string $relatedClass The name of the related class in the format "NameObject".
    356:      * @param string $relatedClassAttribute The name of the field to relate to on the related class.
    357:      * @param bool $allowNullValues For foreign key indexes that don't allow null values, set this to false (default is true).
    358:      * @since 1.1
    359:      * @throws FailedIndexCreateException
    360:      */
    361:     public function createForeignIndex($attributeName, $relatedClass, $relatedClassAttribute);
    362:
    363:     /**
    364:      * Creates a unique index in the database on the given attribute(s).
    365:      *
    366:      * @param string $attribute1Name The first attribute to mark unique in the database.
    367:      * @param string $attribute2Name The second attribute to mark unique in the databse (optional, use only for composite keys).
    368:      * @param string $attribute3Name The third attribute to mark unique in the databse (optional, use only for composite keys).
    369:      * @since 1.1
    370:      * @throws FailedIndexCreateException
    371:      */
    372:     public function createUniqueIndex($attribute1Name, $attribute2Name = '', $attribute3Name = '');
    373:
    374:     /**
    375:      * Reloads the object from the database, overwritting any attribute values in memory.
    376:      *
    377:      * @since 1.1
    378:      * @throws AlphaException
    379:      */
    380:     public function reload();
    381:
    382:     /**
    383:      * Checks that a record exists for the BO in the database.
    384:      *
    385:      * @param int $OID The Object ID of the object we want to see whether it exists or not.
    386:      * @return boolean
    387:      * @since 1.1
    388:      * @throws AlphaException
    389:      */
    390:     public function checkRecordExists($OID);
    391:
    392:     /**
    393:      * Checks to see if the table name matches the classname, and if not if the table
    394:      * name matches the classname name of another BO, i.e. the table is used to store
    395:      * multiple types of BOs.
    396:      *
    397:      * @return bool
    398:      * @since 1.1
    399:      * @throws BadBOTableNameException
    400:      */
    401:     public function isTableOverloaded();
    402:
    403:     /**
    404:      * Starts a new database transaction.
    405:      *
    406:      * @since 1.1
    407:      * @throws AlphaException
    408:      */
    409:     public static function begin();
    410:
    411:     /**
    412:      * Commits the current database transaction.
    413:      *
    414:      * @since 1.1
    415:      * @throws FailedSaveException
    416:      */
    417:     public static function commit();
    418:
    419:     /**
    420:      * Aborts the current database transaction.
    421:      *
    422:      * @since 1.1
    423:      * @throws AlphaException
    424:      */
    425:     public static function rollback();
    426:
    427:     /**
    428:      * Provide the BO that we are going to map the data to from this provider.
    429:      *
    430:      * @param AlphaDAO $BO
    431:      * @since 1.1
    432:      */
    433:     public function setBO($BO);
    434:
    435:     /**
    436:      * Returns a 2d array, where each element in the array is another array
    437:      * representing a database row.
    438:      *
    439:      * @param string $sqlQuery
    440:      * @throws CustomQueryException
    441:      * @return array
    442:      * @since 1.1
    443:      */
    444:     public function query($sqlQuery);
    445: }
    446:
    447: ?>
    448: