Class Helper
Base class for Helpers.
Console Helpers allow you to package up reusable blocks of Console output logic. For example creating tables, progress bars or ascii art.
Properties summary
- $_config protected
array
Runtime config
- $_configInitialized protected
bool
Whether the config property has already been configured with defaults
- $_defaultConfig protected
array
Default config for this helper.
- $_io protected
\Cake\Console\ConsoleIo
ConsoleIo instance.
Method Summary
- configShallow() public
Merge provided config with existing config. Unlike
config()
which does a recursive merge for nested keys, this method does a simple merge.
Method Detail
__construct() public
__construct(\Cake\Console\ConsoleIo $io, array $config)
Constructor.
Parameters
-
\Cake\Console\ConsoleIo
$io The ConsoleIo instance to use.
-
array
$config optional The settings for this helper.
_configDelete() protected
_configDelete(string $key)
Deletes a single config key.
Parameters
-
string
$key Key to delete.
Throws
Cake\Core\Exception\Exception
if attempting to clobber existing config
_configRead() protected
_configRead(?string $key)
Reads a config key.
Parameters
-
string|null
$key Key to read.
Returns
mixed
_configWrite() protected
_configWrite(mixed $key, mixed $value, mixed $merge)
Writes a config key.
Parameters
-
string|array
$key Key to write to.
-
mixed
$value Value to write.
-
bool|string
$merge optional True to merge recursively, 'shallow' for simple merge, false to overwrite, defaults to false.
Throws
Cake\Core\Exception\Exception
if attempting to clobber existing config
configShallow() public
configShallow(mixed $key, mixed $value)
Merge provided config with existing config. Unlike config()
which does a recursive merge for nested keys, this method does a simple merge.
Setting a specific value:
$this->configShallow('key', $value);
Setting a nested value:
$this->configShallow('some.nested.key', $value);
Updating multiple config settings at the same time:
$this->configShallow(['one' => 'value', 'another' => 'value']);
Parameters
-
string|array
$key The key to set, or a complete array of configs.
-
mixed|null
$value optional The value to set.
Returns
$this
getConfig() public
getConfig(?string $key, mixed $default)
Returns the config.
Usage
Reading the whole config:
$this->getConfig();
Reading a specific value:
$this->getConfig('key');
Reading a nested value:
$this->getConfig('some.nested.key');
Reading with default value:
$this->getConfig('some-key', 'default-value');
Parameters
-
string|null
$key optional The key to get or null for the whole config.
-
mixed
$default optional The return value when the key does not exist.
Returns
mixed
Configuration data at the named key or null if the key does not exist.
getConfigOrFail() public
getConfigOrFail(string $key)
Returns the config for this specific key.
The config value for this key must exist, it can never be null.
Parameters
-
string
$key The key to get.
Returns
mixed
Configuration data at the named key
Throws
InvalidArgumentException
output() abstract public
output(array $args)
This method should output content using $this->_io
.
Parameters
-
array
$args The arguments for the helper.
setConfig() public
setConfig(mixed $key, mixed $value, mixed $merge)
Sets the config.
Usage
Setting a specific value:
$this->setConfig('key', $value);
Setting a nested value:
$this->setConfig('some.nested.key', $value);
Updating multiple config settings at the same time:
$this->setConfig(['one' => 'value', 'another' => 'value']);
Parameters
-
string|array
$key The key to set, or a complete array of configs.
-
mixed|null
$value optional The value to set.
-
bool
$merge optional Whether to recursively merge or overwrite existing config, defaults to true.
Returns
$this
Throws
Cake\Core\Exception\Exception
When trying to set a key that is invalid.
Property Detail
$_config protected
Runtime config
Type
array
$_configInitialized protected
Whether the config property has already been configured with defaults
Type
bool
$_defaultConfig protected
Default config for this helper.
Type
array
$_io protected
ConsoleIo instance.
Type
\Cake\Console\ConsoleIo
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https://api.cakephp.org/4.1/class-Cake.Console.Helper.html