JForm::getInstance could not load file on new component development

[Ryan Matthews]

Hoping to get some guidance on debugging this error. I'm following along the tutorial on how to develop a component in Joomla 3.4.8 (https://docs.joomla.org/J3.x:Developing_an_MVC_Component/Adding_an_install-uninstall-update_script_file) after coming from development of many components in the 2.5.x series, and I'm stumped. I've basically copied the HelloWorld plugin and did a case sensitive find and replace with my component name "DanceReg" to see if I can even get started with this.

I've successfully created the installation package and it install fine, but right after installation and upon loading option=com_dancereg page, I get the error:

JForm::getInstance could not load file

I've enabled Joomla debugging and I get the following call stack; what other coding snippets can I post for you guys to help me debug this? I'm so stumped!

JForm::getInstance could not load file
Call stack
# Function Location
1 JApplicationCms->execute() JROOT/administrator/index.php:47
2 JApplicationAdministrator->doExecute() JROOT/libraries/cms/application/cms.php:252
3 JApplicationAdministrator->dispatch() JROOT/libraries/cms/application/administrator.php:152
4 JComponentHelper::renderComponent() JROOT/libraries/cms/application/administrator.php:98
5 JComponentHelper::executeComponent() JROOT/libraries/cms/component/helper.php:372
6 require_once() JROOT/libraries/cms/component/helper.php:392
7 JControllerLegacy->execute() JROOT/administrator/components/com_dancereg/dancereg.php:31
8 JControllerLegacy->display() JROOT/libraries/legacy/controller/legacy.php:728
9 DanceRegViewDanceRegs->display() JROOT/libraries/legacy/controller/legacy.php:690
10 JError::raiseError() JROOT/administrator/components/com_dancereg/views/danceregs/view.html.php:48
11 JError::raise() JROOT/libraries/legacy/error/error.php:254

[Chris Davenport]

It's failing to find a form XML file in /models/forms.  Did you remember to rename the form file to match?

Chris.

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Chris Davenport
Joomla Production Leadership Team

[Ryan Matthews]

Yup! I think you're referring to this snippet from \models\dancereg.php, which is looking for a 'dancereg.xml' in the \models\forms folder (below). I can also confirm this .xml file is uploaded in this server on the web (pic).

public function getForm($data = array(), $loadData = true)

{

// Get the form.

$form = $this->loadForm(

'com_dancereg.dancereg',

'dancereg',

array(

'control' => 'jform',

'load_data' => $loadData

)

);

if (empty($form))

{

return false;

}

return $form;

}

<?xml version="1.0" encoding="utf-8"?>

<form

addrulepath="/administrator/components/com_dancereg/models/rules"

>

<fieldset

name="details"

label="COM_DANCEREG_DANCEREG_DETAILS"

>

<field

name="dancer_id"

type="hidden"

/>

<field

name="dancer_name"

type="text"

label="COM_DANCEREG_DANCEREG_DANCER_NAME_LABEL"

description="COM_DANCEREG_DANCEREG_DANCER_NAME_DESC"

size="40"

class="inputbox validate-dancer_name"

validate="dancer_name"

required="true"

default=""

/>

<field

name="catid"

type="category"

extension="com_dancereg"

class="inputbox"

default=""

label="COM_DANCEREG_DANCEREG_FIELD_CATID_LABEL"

description="COM_DANCEREG_DANCEREG_FIELD_CATID_DESC"

required="true"

>

<option value="0">JOPTION_SELECT_CATEGORY</option>

</field>

</fieldset>

<fields name="params">

<fieldset

name="params"

label="JGLOBAL_FIELDSET_DISPLAY_OPTIONS"

>

<field

name="show_category"

type="list"

label="COM_DANCEREG_DANCEREG_FIELD_SHOW_CATEGORY_LABEL"

description="COM_DANCEREG_DANCEREG_FIELD_SHOW_CATEGORY_DESC"

default=""

>

<option value="">JGLOBAL_USE_GLOBAL</option>

<option value="0">JHIDE</option>

<option value="1">JSHOW</option>

</field>

</fieldset>

</fields>

<fieldset

name="accesscontrol"

label="COM_DANCEREG_FIELDSET_RULES"

>

        <!--

    <field

name="asset_id"

type="hidden"

filter="unset"

/>

    <field

name="rules"

type="rules"

label="COM_DANCEREG_FIELD_RULES_LABEL"

filter="rules"

validate="rules"

class="inputbox"

component="com_dancereg"

section="message"

/>

        -->

    </fieldset>

</form>

On Tuesday, 5 January 2016 03:37:24 UTC-5, Chris Davenport wrote:

It's failing to find a form XML file in /models/forms.  Did you remember to rename the form file to match?

Chris.

On 5 January 2016 at 02:56, Ryan Matthews <mha...@gmail.com> wrote:

Hoping to get some guidance on debugging this error. I'm following along the tutorial on how to develop a component in Joomla 3.4.8 (https://docs.joomla.org/J3.x:Developing_an_MVC_Component/Adding_an_install-uninstall-update_script_file) after coming from development of many components in the 2.5.x series, and I'm stumped. I've basically copied the HelloWorld plugin and did a case sensitive find and replace with my component name "DanceReg" to see if I can even get started with this.

I've successfully created the installation package and it install fine, but right after installation and upon loading option=com_dancereg page, I get the error:

JForm::getInstance could not load file

I've enabled Joomla debugging and I get the following call stack; what other coding snippets can I post for you guys to help me debug this? I'm so stumped!

JForm::getInstance could not load file
Call stack
#       Function        Location
1       JApplicationCms->execute()      JROOT/administrator/index.php:47
2       JApplicationAdministrator->doExecute()  JROOT/libraries/cms/application/cms.php:252
3       JApplicationAdministrator->dispatch()   JROOT/libraries/cms/application/administrator.php:152
4       JComponentHelper::renderComponent()     JROOT/libraries/cms/application/administrator.php:98
5       JComponentHelper::executeComponent()    JROOT/libraries/cms/component/helper.php:372
6       require_once()  JROOT/libraries/cms/component/helper.php:392
7       JControllerLegacy->execute()    JROOT/administrator/components/com_dancereg/dancereg.php:31
8       JControllerLegacy->display()    JROOT/libraries/legacy/controller/legacy.php:728
9       DanceRegViewDanceRegs->display()        JROOT/libraries/legacy/controller/legacy.php:690
10      JError::raiseError()    JROOT/administrator/components/com_dancereg/views/danceregs/view.html.php:48
11      JError::raise() JROOT/libraries/legacy/error/error.php:254

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[Ryan Matthews]

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>
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>
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>
> Chris Davenport
> Joomla Production Leadership Team

Figured out the problem ... my \models\forms\filter_dancereg.xml file should be called \models\forms\filter_danceregs.xml.

You'd think the error message could have been a little more helpful to assist in this debugging process!