DbDatasource
Database based data source
class Winter\Storm\Halcyon\Datasource\DbDatasource
extends Winter\Storm\Halcyon\Datasource\Datasource
implements
Winter\Storm\Halcyon\Datasource\DatasourceInterface
Table Structure:
- id, unsigned integer
- source, varchar
- path, varchar
- content, longText
- file_size, unsigned integer // In bytes - NOTE: max file size of 4.29 GB represented with unsigned int in MySQL
- updated_at, datetime
- deleted_at, datetime, nullable
Extends
Class | Description |
---|---|
Datasource
|
Datasource base class. |
Traits
Trait | Description |
---|---|
Emitter
|
Adds event related features to any class. |
Properties
protected $source : string
The identifier for this datasource instance
protected $table : string
The table name of the datasource
inherited
protected
$emitterEventCollection
:
array
= []
Collection of registered events.
inherited
protected
$emitterEventSorted
:
array
= []
Sorted collection of events.
inherited
protected
$emitterSingleEventCollection
:
array
= []
Collection of registered events to be fired once only.
inherited
protected
$forceDeleting
:
bool
= false
Indicates if the record is currently being force deleted.
inherited protected $postProcessor : Winter\Storm\Halcyon\Processors\Processor
The query post processor implementation.
Methods
public __construct (string $source, string $table)
Create a new database datasource instance.
Property | Type | Description |
---|---|---|
$source | string |
string
The source identifier for this datasource instance |
$table | string |
string
The table for this database datasource |
public delete (string $dirName, string $fileName, string $extension) : bool
Runs a delete statement against the datasource.
Property | Type | Description |
---|---|---|
$dirName | string |
string
The directory in which the model is stored. |
$fileName | string |
string
The filename of the model. |
$extension | string |
string
The file extension of the model. |
If the delete operation completed successfully.
public getAvailablePaths () : array
Get all available paths within this datasource.
This method returns an array, with all available paths as the key, and a boolean that represents whether the path can be handled or modified.
Example:
[
'path/to/file.md' => true, // (this path is available, and can be handled)
'path/to/file2.md' => false // (this path is available, but cannot be handled)
]
An array of available paths alongside whether they can be handled.
public getBaseQuery () : Winter\Storm\Database\QueryBuilder
Get the base QueryBuilder object.
public getPathsCacheKey () : string
Gets the prefix of the cache keys.
This is based off a prefix including the base path for the model.
The cache key prefix.
public
getQuery (boolean $ignoreDeleted = true
)
: Winter\Storm\Database\QueryBuilder
Get the QueryBuilder object.
Property | Type | Description |
---|---|---|
$ignoreDeleted | boolean |
boolean
Ignore deleted records. Defaults to |
public insert (string $dirName, string $fileName, string $extension, string $content) : integer
Creates a new Halcyon model (template).
Property | Type | Description |
---|---|---|
$dirName | string |
string
The directory in which the model is stored. |
$fileName | string |
string
The filename of the model. |
$extension | string |
string
The file extension of the model. |
$content | string |
string
The content to store for the model. |
The filesize of the created model.
public lastModified (string $dirName, string $fileName, string $extension) : integer | null
Returns the last modified date of a model (template).
Property | Type | Description |
---|---|---|
$dirName | string |
string
The directory in which the model is stored. |
$fileName | string |
string
The filename of the model. |
$extension | string |
string
The file extension of the model. |
The last modified time as a timestamp, or null
if the object doesn't exist.
public
select (string $dirName, array $options = []
)
: array
Returns all Halcyon models (templates) within a given directory.
You can provide multiple options with the $options
property, in order to filter the retrieved records:
-
columns
: Only retrieve certain columns. Must be an array with any combination offileName
,mtime
andcontent
. -
extensions
: Defines the accepted extensions as an array. Eg:['htm', 'md', 'twig']
-
fileMatch
: Defines a glob string to match filenames against. Eg:'*gr[ae]y'
-
orders
: Not implemented -
limit
: Not implemented -
offset
: Not implemented
Property | Type | Description |
---|---|---|
$dirName | string |
string
The directory in which the model is stored. |
$options | array |
array
Defines the options for this query. |
An array of models found, with the columns defined as per the columns
parameter for $options
.
public selectOne (string $dirName, string $fileName, string $extension) : array | null
Returns a single Halcyon model (template).
Property | Type | Description |
---|---|---|
$dirName | string |
string
The directory in which the model is stored. |
$fileName | string |
string
The filename of the model. |
$extension | string |
string
The file extension of the model. |
An array of template data (fileName
, mtime
and content
), or null
if the model does
not exist.
public
update (string $dirName, string $fileName, string $extension, string $content, $oldFileName = null
, $oldExtension = null
)
: integer
Updates an existing Halcyon model (template).
Property | Type | Description |
---|---|---|
$dirName | string |
string
The directory in which the model is stored. |
$fileName | string |
string
The filename of the model. |
$extension | string |
string
The file extension of the model. |
$content | string |
string
The content to store for the model. |
$oldFileName | mixed |
mixed
Used for renaming templates. If specified, this will delete the "old" path. |
$oldExtension | mixed |
mixed
Used for renaming templates. If specified, this will delete the "old" path. |
The filesize of the updated model.
protected makeFilePath (string $dirName, string $fileName, string $extension) : string
Helper method to combine the provided directory, filename and extension into a single path.
Property | Type | Description |
---|---|---|
$dirName | string |
string
The directory in which the model is stored. |
$fileName | string |
string
The filename of the model. |
$extension | string |
string
The file extension of the model. |
The combined path.
inherited
public
bindEvent (string | Closure | QueuedClosure $event, mixed $callback = null
, integer $priority)
: self
Create a new event binding.
Property | Type | Description |
---|---|---|
$event | string | Closure | QueuedClosure |
string | Closure | QueuedClosure
|
$callback | mixed |
mixed
when the third parameter is omitted and a Closure or QueuedClosure is provided this parameter is used as an integer this is used as priority variable |
$priority | integer |
integer
|
inherited
public
bindEventOnce (string | Closure | QueuedClosure $event, QueuedClosure | Closure | null $callback = null
)
: self
Create a new event binding that fires once only
Property | Type | Description |
---|---|---|
$event | string | Closure | QueuedClosure |
string | Closure | QueuedClosure
|
$callback | QueuedClosure | Closure | null |
QueuedClosure | Closure | null
When a Closure or QueuedClosure is provided as the first parameter this parameter can be omitted |
inherited
public
fireEvent (string $event, array $params = []
, boolean $halt = false
)
: array | mixed | null
Fire an event and call the listeners.
Property | Type | Description |
---|---|---|
$event | string |
string
Event name |
$params | array |
array
Event parameters |
$halt | boolean |
boolean
Halt after first non-null result |
If halted, the first non-null result. If not halted, an array of event results. Returns null if no listeners returned a result.
inherited public forceDelete (string $dirName, string $fileName, string $extension) : bool
Runs a delete statement against the datasource, forcing the complete removal of the model (template).
Property | Type | Description |
---|---|---|
$dirName | string |
string
The directory in which the model is stored. |
$fileName | string |
string
The filename of the model. |
$extension | string |
string
The file extension of the model. |
If the delete operation completed successfully.
inherited public getPostProcessor () : Winter\Storm\Halcyon\Processors\Processor
Get the query post processor used by the connection.
inherited
public
makeCacheKey (string $name = ""
)
: string
Generate a cache key unique to this datasource.
Property | Type | Description |
---|---|---|
$name | string |
string
The name of the key. |
The hashed key.
inherited
public
unbindEvent (string | array | object $event = null
)
: self
Destroys an event binding.
Property | Type | Description |
---|---|---|
$event | string | array | object |
string | array | object
Event to destroy |
inherited protected emitterEventSortEvents (string $eventName) : void
Sort the listeners for a given event by priority.
Property | Type | Description |
---|---|---|
$eventName | string |
string
|
inherited
protected
parseEventAndPayload (mixed $event, mixed $payload = null
)
: array
Parse the given event and payload and prepare them for dispatching.
Property | Type | Description |
---|---|---|
$event | mixed |
mixed
|
$payload | mixed |
mixed
|