| 1 |
<?php |
| 2 |
/* |
| 3 |
|
| 4 |
YakkaPageStorage |
| 5 |
|
| 6 |
An abstract class definition (interface), which a typical yakka page storage provider must implement. |
| 7 |
PHP has no language term to strongly verify this, so great care must be taken to meet the requirements |
| 8 |
of this interface when writing an implementation. |
| 9 |
|
| 10 |
Please read all comments on all methods carefully to implement correctly. |
| 11 |
*/ |
| 12 |
|
| 13 |
class YakkaPageStorage { |
| 14 |
function YakkaPageStorage($parameters = null) { |
| 15 |
/* |
| 16 |
|
| 17 |
YakkaPageStorage($parameters : array) : void |
| 18 |
|
| 19 |
Constructor of your storage provider. |
| 20 |
|
| 21 |
Yakka will optionally pass you parameters for your storage provider (such as username, password, databasename aso.). |
| 22 |
These parameters are defined in the yakka-settings.xml file as child-elements of your storage-provider definition. |
| 23 |
|
| 24 |
You'll get all parameters as an associative php-array, in form of "element-name" => "element-text-node-childs-content", i.e. |
| 25 |
|
| 26 |
array( |
| 27 |
"user" => "user-value", |
| 28 |
"host" => "host-value" |
| 29 |
) |
| 30 |
*/ |
| 31 |
} |
| 32 |
|
| 33 |
function hasPage($id, $revision = null) { |
| 34 |
/* |
| 35 |
|
| 36 |
hasPage($id : string, $revision : string) : boolean |
| 37 |
|
| 38 |
Check if the page exists on storage. |
| 39 |
|
| 40 |
Yakka has to check if a certain page already exists on your storage. Therefore you'll get the $id parameter as page identifier. |
| 41 |
Maybe Yakka wants to check on a special revision and passes you optionally a $revision. |
| 42 |
|
| 43 |
Yakka expects a php-boolean value to be returned |
| 44 |
*/ |
| 45 |
} |
| 46 |
|
| 47 |
function loadPage($id, $revision = null) { |
| 48 |
/* |
| 49 |
|
| 50 |
loadPage($id : string, $revision: string) : YakkaPage |
| 51 |
|
| 52 |
Load a certain page. |
| 53 |
|
| 54 |
Yakka will call this method to load a certain page from your storage. You'll get the page identifier $id and optionally a $revision string; |
| 55 |
if passed a $revision identifier, you have to return this revision of that page. |
| 56 |
|
| 57 |
Yakka expects an instance of a YakkaPage as return value. Read documentation of YakkaPage on how to create a valid instance of it. |
| 58 |
*/ |
| 59 |
} |
| 60 |
|
| 61 |
function loadPageLinkedPages($id) { |
| 62 |
/* |
| 63 |
|
| 64 |
loadPageLinkedPages($id : string) : array |
| 65 |
|
| 66 |
Load page identifiers linked from a certain page. |
| 67 |
|
| 68 |
On certain occasions, Yakka may request your storage to pass all page identifers back which are linked from a page given by $id string. |
| 69 |
|
| 70 |
Yakka wants an array passed back from this method containing all page identifiers your storage has found. |
| 71 |
The order and key values of this array irrelevant. Just return the id's like |
| 72 |
array("FirstPage", "AnyOtherPage", "AgainAnyPage"); |
| 73 |
*/ |
| 74 |
} |
| 75 |
|
| 76 |
function loadPageReferrerPages($id) { |
| 77 |
/* |
| 78 |
|
| 79 |
loadPageReferrerPages($id : string) : array |
| 80 |
|
| 81 |
Load page identifiers linking to a certain page. |
| 82 |
|
| 83 |
This method is similar to loadPageLinkedPages, except that it should pass all page identifiers linking to a certain page given by $id string. |
| 84 |
On most wiki-engines these pages are known as BackLinks or ReferrerPages. |
| 85 |
|
| 86 |
Yakka expects the same type of array as stated in loadPageLinkedPages. |
| 87 |
*/ |
| 88 |
} |
| 89 |
|
| 90 |
function loadPageRevisions($id) { |
| 91 |
/* |
| 92 |
|
| 93 |
loadPageRevisions($id : string) : array |
| 94 |
|
| 95 |
Load all revision identifiers of a certain page. |
| 96 |
|
| 97 |
Yakka may request a list of all available revisions of a page identified by $id. |
| 98 |
|
| 99 |
In return, pass back a **sorted** array of revision identifiers beginning with the most recent revision and ending with the oldest revision. |
| 100 |
This array may be indexed and just needs to be a list in a form like |
| 101 |
array("first revision id", "second revision id"...); |
| 102 |
or |
| 103 |
array(0 => "first revision id", 1 => "second revision id"...); |
| 104 |
*/ |
| 105 |
} |
| 106 |
|
| 107 |
function loadPagePermission($id, $permissionType) { |
| 108 |
/* |
| 109 |
|
| 110 |
loadPagePermission($id : string, $permissionType : int) : YakkaObjectPermission |
| 111 |
|
| 112 |
Load a certain permission for a certain page. |
| 113 |
|
| 114 |
To check access permissions of a certain user or role on a page identified by $id string, Yakka calls this method to gather that information |
| 115 |
from your storage. Yakka always will request a certain type of permission identified by $permissionType value. Possible values are: |
| 116 |
1 = YAKKA_OBJECT_PERMISSION_READ |
| 117 |
2 = YAKKA_OBJECT_PERMISSION_WRITE |
| 118 |
3 = YAKKA_OBJECT_PERMISSION_DELETE |
| 119 |
|
| 120 |
Yakka expects an instance of YakkaObjectPermission to be returns. Consult the YakkaObjectPermission documentation to get knowledge on how |
| 121 |
to instantiate a valid object of YakkaObjectPermission. |
| 122 |
*/ |
| 123 |
} |
| 124 |
|
| 125 |
function savePage($id, $source, $user = null, $revision = null) {} |
| 126 |
function savePagePermission($id, $permissionType, $allowDefault = null, $allowUsers = null, $allowRoles = null, $denyDefault = null, $denyUsers = null, $denyRoles = null) {} |
| 127 |
function savePageLinkedPages($ids) {} |
| 128 |
} |
| 129 |
|
| 130 |
?> |