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Magento 2 : Call Helper Without Using __construct in Own Module

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3

I have created a new module and override the

MagentoCatalogBlockProductViewDescription

function using preference.
In this module we create new helper located in

Custom_Hello/Helper/Data.php

Then how to call this helper in

Custom_Hello/Block/Product/View/Description.php

If we use __construct got some error.

public function __construct(CustomHelloHelperData $helper)

    {

        $this->helper = $helper;

    }

Anyone helpme

magento2 helper

share|improve this question

edited 1 hour ago

Dhiren Vasoya

4,32951842

asked 1 hour ago

Soundararajan mSoundararajan m

413

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  you can use object manager method into this case, As I know that is not peoper method.
  
  – Dhiren Vasoya
  1 hour ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I'm new in magento. But using plugin we got solution then using this way error
  
  – Soundararajan m
  1 hour ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Could you provide the error you are receiving? The way you are injecting it is the proper approach so if we can resolve the error that would be best.
  
  – rain2o
  1 hour ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Fatal error: Uncaught Error: Call to a member function dispatch() on null in /var/www/html/magento2/lib/internal/Magento/Framework/View/Element/AbstractBlock.php:652 Stack trace: #0 /var/www/html/magento2/lib/internal/Magento/Framework/Interception/Interceptor.php(58): MagentoFrameworkViewElementAbstractBlock->toHtml() #1
  
  – Soundararajan m
  1 hour ago
  
  
  

  
  
  
  

add a comment | 

3

I have created a new module and override the

MagentoCatalogBlockProductViewDescription

function using preference.
In this module we create new helper located in

Custom_Hello/Helper/Data.php

Then how to call this helper in

Custom_Hello/Block/Product/View/Description.php

If we use __construct got some error.

public function __construct(CustomHelloHelperData $helper)

    {

        $this->helper = $helper;

    }

Anyone helpme

magento2 helper

share|improve this question

edited 1 hour ago

Dhiren Vasoya

4,32951842

asked 1 hour ago

Soundararajan mSoundararajan m

413

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  you can use object manager method into this case, As I know that is not peoper method.
  
  – Dhiren Vasoya
  1 hour ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I'm new in magento. But using plugin we got solution then using this way error
  
  – Soundararajan m
  1 hour ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Could you provide the error you are receiving? The way you are injecting it is the proper approach so if we can resolve the error that would be best.
  
  – rain2o
  1 hour ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Fatal error: Uncaught Error: Call to a member function dispatch() on null in /var/www/html/magento2/lib/internal/Magento/Framework/View/Element/AbstractBlock.php:652 Stack trace: #0 /var/www/html/magento2/lib/internal/Magento/Framework/Interception/Interceptor.php(58): MagentoFrameworkViewElementAbstractBlock->toHtml() #1
  
  – Soundararajan m
  1 hour ago
  
  
  

  
  
  
  

add a comment | 

I have created a new module and override the

MagentoCatalogBlockProductViewDescription

function using preference.
In this module we create new helper located in

Custom_Hello/Helper/Data.php

Then how to call this helper in

Custom_Hello/Block/Product/View/Description.php

If we use __construct got some error.

public function __construct(CustomHelloHelperData $helper)

    {

        $this->helper = $helper;

    }

Anyone helpme

magento2 helper

share|improve this question

edited 1 hour ago

Dhiren Vasoya

4,32951842

asked 1 hour ago

Soundararajan mSoundararajan m

413

public function __construct(CustomHelloHelperData $helper)

    {

        $this->helper = $helper;

    }

share|improve this question

edited 1 hour ago

Dhiren Vasoya

4,32951842

asked 1 hour ago

Soundararajan mSoundararajan m

413

share|improve this question

edited 1 hour ago

Dhiren Vasoya

4,32951842

asked 1 hour ago

Soundararajan mSoundararajan m

413

edited 1 hour ago

Dhiren Vasoya

4,32951842

edited 1 hour ago

Dhiren Vasoya

4,32951842

asked 1 hour ago

Soundararajan mSoundararajan m

413

asked 1 hour ago

Soundararajan mSoundararajan m

413

4 Answers
4

active

oldest

votes

3

You can add your custom helper in constructor, but as this method is present in the class you're extending then you'd pass the right parameters in it, not just your helper

class Description extends MagentoCatalogBlockProductViewDescription

You are extending MagentoCatalogBlockProductViewDescription so let's see constructor in this class (in 2.3 version, you can check this in your project for other version, if that's the case)

public function __construct(

    MagentoFrameworkViewElementTemplateContext $context,

    MagentoFrameworkRegistry $registry,

    array $data = []

) {

    $this->_coreRegistry = $registry;

    parent::__construct($context, $data);

}

So, in your class you'd pass that $context & $registry parameters. You can do that this way

public function __construct(

    CustomHelloHelperData $helper,

    MagentoFrameworkViewElementTemplateContext $context,

    MagentoFrameworkRegistry $registry,

    array $data = []

) {

    $this->helper = $helper;

    parent::__construct($context, $registry, $data);

}

share|improve this answer

answered 33 mins ago

Raul SanchezRaul Sanchez

2,09131235

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  thanks for your comments. Already got the solution and again thanks
  
  – Soundararajan m
  30 mins ago
  

  
  
  
  

add a comment | 

2

I got the solution. If we use following way

public function __construct(

        MagentoFrameworkViewElementTemplateContext $context,

        MagentoFrameworkRegistry $registry,

        CustomHelloHelperData $dataHelper,

        array $data = []

    ) {

        parent::__construct($context, $registry, $data);

        $this->_dataHelper = $dataHelper;

    }

share|improve this answer

answered 33 mins ago

Soundararajan mSoundararajan m

413

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Answered at same time :)
  
  – Raul Sanchez
  30 mins ago
  

  
  
  
  

add a comment | 

2

You can use directly without contructor

$this->helper('CompanyNameModuleNameHelperData')->yourfunctionname();

share|improve this answer

answered 16 mins ago

Mitrajsinh vaghelaMitrajsinh vaghela

664

New contributor

Mitrajsinh vaghela is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

1

In Custom_Hello/Block/Product/View/Description.php File

protected $helper;



public function __construct(

        MagentoCatalogBlockProductContext $context, 

        CustomHelloHelperData $helper

        array $data = []

    )

    {

        $this->helper= $heper;

        parent::__construct($context, $data);

    }

And You Can Call Your Helper Function Like this

$this->helper->yourFunctionName() 

share|improve this answer

answered 35 mins ago

Ronak RathodRonak Rathod

1497

add a comment | 

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3

You can add your custom helper in constructor, but as this method is present in the class you're extending then you'd pass the right parameters in it, not just your helper

class Description extends MagentoCatalogBlockProductViewDescription

You are extending MagentoCatalogBlockProductViewDescription so let's see constructor in this class (in 2.3 version, you can check this in your project for other version, if that's the case)

public function __construct(

    MagentoFrameworkViewElementTemplateContext $context,

    MagentoFrameworkRegistry $registry,

    array $data = []

) {

    $this->_coreRegistry = $registry;

    parent::__construct($context, $data);

}

So, in your class you'd pass that $context & $registry parameters. You can do that this way

public function __construct(

    CustomHelloHelperData $helper,

    MagentoFrameworkViewElementTemplateContext $context,

    MagentoFrameworkRegistry $registry,

    array $data = []

) {

    $this->helper = $helper;

    parent::__construct($context, $registry, $data);

}

share|improve this answer

answered 33 mins ago

Raul SanchezRaul Sanchez

2,09131235

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  thanks for your comments. Already got the solution and again thanks
  
  – Soundararajan m
  30 mins ago
  

  
  
  
  

add a comment | 

3

You can add your custom helper in constructor, but as this method is present in the class you're extending then you'd pass the right parameters in it, not just your helper

class Description extends MagentoCatalogBlockProductViewDescription

You are extending MagentoCatalogBlockProductViewDescription so let's see constructor in this class (in 2.3 version, you can check this in your project for other version, if that's the case)

public function __construct(

    MagentoFrameworkViewElementTemplateContext $context,

    MagentoFrameworkRegistry $registry,

    array $data = []

) {

    $this->_coreRegistry = $registry;

    parent::__construct($context, $data);

}

So, in your class you'd pass that $context & $registry parameters. You can do that this way

public function __construct(

    CustomHelloHelperData $helper,

    MagentoFrameworkViewElementTemplateContext $context,

    MagentoFrameworkRegistry $registry,

    array $data = []

) {

    $this->helper = $helper;

    parent::__construct($context, $registry, $data);

}

share|improve this answer

answered 33 mins ago

Raul SanchezRaul Sanchez

2,09131235

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  thanks for your comments. Already got the solution and again thanks
  
  – Soundararajan m
  30 mins ago
  

  
  
  
  

add a comment | 

You can add your custom helper in constructor, but as this method is present in the class you're extending then you'd pass the right parameters in it, not just your helper

class Description extends MagentoCatalogBlockProductViewDescription

You are extending MagentoCatalogBlockProductViewDescription so let's see constructor in this class (in 2.3 version, you can check this in your project for other version, if that's the case)

public function __construct(

    MagentoFrameworkViewElementTemplateContext $context,

    MagentoFrameworkRegistry $registry,

    array $data = []

) {

    $this->_coreRegistry = $registry;

    parent::__construct($context, $data);

}

So, in your class you'd pass that $context & $registry parameters. You can do that this way

public function __construct(

    CustomHelloHelperData $helper,

    MagentoFrameworkViewElementTemplateContext $context,

    MagentoFrameworkRegistry $registry,

    array $data = []

) {

    $this->helper = $helper;

    parent::__construct($context, $registry, $data);

}

share|improve this answer

answered 33 mins ago

Raul SanchezRaul Sanchez

2,09131235

class Description extends MagentoCatalogBlockProductViewDescription

public function __construct(

    MagentoFrameworkViewElementTemplateContext $context,

    MagentoFrameworkRegistry $registry,

    array $data = []

) {

    $this->_coreRegistry = $registry;

    parent::__construct($context, $data);

}

public function __construct(

    CustomHelloHelperData $helper,

    MagentoFrameworkViewElementTemplateContext $context,

    MagentoFrameworkRegistry $registry,

    array $data = []

) {

    $this->helper = $helper;

    parent::__construct($context, $registry, $data);

}

share|improve this answer

answered 33 mins ago

Raul SanchezRaul Sanchez

2,09131235

answered 33 mins ago

Raul SanchezRaul Sanchez

2,09131235

answered 33 mins ago

Raul SanchezRaul Sanchez

2,09131235

2

I got the solution. If we use following way

public function __construct(

        MagentoFrameworkViewElementTemplateContext $context,

        MagentoFrameworkRegistry $registry,

        CustomHelloHelperData $dataHelper,

        array $data = []

    ) {

        parent::__construct($context, $registry, $data);

        $this->_dataHelper = $dataHelper;

    }

share|improve this answer

answered 33 mins ago

Soundararajan mSoundararajan m

413

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Answered at same time :)
  
  – Raul Sanchez
  30 mins ago
  

  
  
  
  

add a comment | 

2

I got the solution. If we use following way

public function __construct(

        MagentoFrameworkViewElementTemplateContext $context,

        MagentoFrameworkRegistry $registry,

        CustomHelloHelperData $dataHelper,

        array $data = []

    ) {

        parent::__construct($context, $registry, $data);

        $this->_dataHelper = $dataHelper;

    }

share|improve this answer

answered 33 mins ago

Soundararajan mSoundararajan m

413

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Answered at same time :)
  
  – Raul Sanchez
  30 mins ago
  

  
  
  
  

add a comment | 

I got the solution. If we use following way

public function __construct(

        MagentoFrameworkViewElementTemplateContext $context,

        MagentoFrameworkRegistry $registry,

        CustomHelloHelperData $dataHelper,

        array $data = []

    ) {

        parent::__construct($context, $registry, $data);

        $this->_dataHelper = $dataHelper;

    }

share|improve this answer

answered 33 mins ago

Soundararajan mSoundararajan m

413

public function __construct(

        MagentoFrameworkViewElementTemplateContext $context,

        MagentoFrameworkRegistry $registry,

        CustomHelloHelperData $dataHelper,

        array $data = []

    ) {

        parent::__construct($context, $registry, $data);

        $this->_dataHelper = $dataHelper;

    }

share|improve this answer

answered 33 mins ago

Soundararajan mSoundararajan m

413

answered 33 mins ago

Soundararajan mSoundararajan m

413

answered 33 mins ago

Soundararajan mSoundararajan m

413

2

You can use directly without contructor

$this->helper('CompanyNameModuleNameHelperData')->yourfunctionname();

share|improve this answer

answered 16 mins ago

Mitrajsinh vaghelaMitrajsinh vaghela

664

New contributor

Mitrajsinh vaghela is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

2

You can use directly without contructor

$this->helper('CompanyNameModuleNameHelperData')->yourfunctionname();

share|improve this answer

answered 16 mins ago

Mitrajsinh vaghelaMitrajsinh vaghela

664

New contributor

Mitrajsinh vaghela is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

You can use directly without contructor

$this->helper('CompanyNameModuleNameHelperData')->yourfunctionname();

share|improve this answer

answered 16 mins ago

Mitrajsinh vaghelaMitrajsinh vaghela

664

New contributor

Mitrajsinh vaghela is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

$this->helper('CompanyNameModuleNameHelperData')->yourfunctionname();

share|improve this answer

answered 16 mins ago

Mitrajsinh vaghelaMitrajsinh vaghela

664

New contributor

Mitrajsinh vaghela is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

answered 16 mins ago

Mitrajsinh vaghelaMitrajsinh vaghela

664

New contributor

Mitrajsinh vaghela is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

answered 16 mins ago

Mitrajsinh vaghelaMitrajsinh vaghela

664

1

In Custom_Hello/Block/Product/View/Description.php File

protected $helper;



public function __construct(

        MagentoCatalogBlockProductContext $context, 

        CustomHelloHelperData $helper

        array $data = []

    )

    {

        $this->helper= $heper;

        parent::__construct($context, $data);

    }

And You Can Call Your Helper Function Like this

$this->helper->yourFunctionName() 

share|improve this answer

answered 35 mins ago

Ronak RathodRonak Rathod

1497

add a comment | 

1

In Custom_Hello/Block/Product/View/Description.php File

protected $helper;



public function __construct(

        MagentoCatalogBlockProductContext $context, 

        CustomHelloHelperData $helper

        array $data = []

    )

    {

        $this->helper= $heper;

        parent::__construct($context, $data);

    }

And You Can Call Your Helper Function Like this

$this->helper->yourFunctionName() 

share|improve this answer

answered 35 mins ago

Ronak RathodRonak Rathod

1497

add a comment | 

In Custom_Hello/Block/Product/View/Description.php File

protected $helper;



public function __construct(

        MagentoCatalogBlockProductContext $context, 

        CustomHelloHelperData $helper

        array $data = []

    )

    {

        $this->helper= $heper;

        parent::__construct($context, $data);

    }

And You Can Call Your Helper Function Like this

$this->helper->yourFunctionName() 

share|improve this answer

answered 35 mins ago

Ronak RathodRonak Rathod

1497

protected $helper;



public function __construct(

        MagentoCatalogBlockProductContext $context, 

        CustomHelloHelperData $helper

        array $data = []

    )

    {

        $this->helper= $heper;

        parent::__construct($context, $data);

    }

$this->helper->yourFunctionName() 

share|improve this answer

answered 35 mins ago

Ronak RathodRonak Rathod

1497

answered 35 mins ago

Ronak RathodRonak Rathod

1497

answered 35 mins ago

Ronak RathodRonak Rathod

1497