Overview
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: