J3.x:Developing an MVC Component/Adding a batch process - Revision history

ThiagoG at 13:48, 18 March 2020

2020-03-18T13:48:22Z

← Older revision		Revision as of 13:48, 18 March 2020
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	<div id="j-main-container" class="span10">		<div id="j-main-container" class="span10">
	<div class="row-fluid">		<div class="row-fluid">
	<div class="~~span6~~">		<div class="span12">
	<?php echo JText::_('COM_HELLOWORLD_HELLOWORLDS_FILTER'); ?>		<?php echo JText::_('COM_HELLOWORLD_HELLOWORLDS_FILTER'); ?>
	<?php		<?php

Robbiej: minor code tweak

2020-01-11T20:41:16Z

minor code tweak

← Older revision		Revision as of 20:41, 11 January 2020
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	protected function batchPosition($value, $pks, $contexts)		protected function batchPosition($value, $pks, $contexts)
	{		{

	$app = JFactory::getApplication();		$app = JFactory::getApplication();
	~~$app->enqueueMessage("In batchPosition");~~

	if (isset($value['setposition']) && ($value['setposition'] === 'changePosition'))		if (isset($value['setposition']) && ($value['setposition'] === 'changePosition'))

Sandra97: Marked this version for translation

2019-04-04T05:01:28Z

Marked this version for translation

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Sandra97: Marked for translation

2019-04-04T05:01:13Z

Marked for translation

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Robbiej: add link to video and remove under construction message

2019-02-16T10:25:10Z

add link to video and remove under construction message

← Older revision		Revision as of 10:25, 16 February 2019
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	This tutorial is part of the [[S:MyLanguage/J3.2:Developing an MVC Component \| Developing an MVC Component for Joomla! 3.2]] tutorial. You are encouraged to read the previous parts of the tutorial before reading this.		This tutorial is part of the [[S:MyLanguage/J3.2:Developing an MVC Component \| Developing an MVC Component for Joomla! 3.2]] tutorial. You are encouraged to read the previous parts of the tutorial before reading this.

	In this step we add a helloworld batch process to the backend.		In this step we add a helloworld batch process to the backend. An accompanying video is available at [[https://youtu.be/v2t_EsBrL-g Adding a batch process]].

	~~== Under Construction! ==~~

	== Introduction ==		== Introduction ==

Robbiej: fixes to highlight batchCopy problem, and include placeholder in batch modal html

2019-02-01T17:23:57Z

fixes to highlight batchCopy problem, and include placeholder in batch modal html

← Older revision		Revision as of 17:23, 1 February 2019
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	$html[] = '<label id="batch_latitude-lbl" for="batch_latitude">' .		$html[] = '<label id="batch_latitude-lbl" for="batch_latitude">' .
	JText::_('COM_HELLOWORLD_HELLOWORLD_FIELD_LATITUDE_LABEL') . '</label>';		JText::_('COM_HELLOWORLD_HELLOWORLD_FIELD_LATITUDE_LABEL') . '</label>';
	$html[] = '<input id="batch_latitude" class="inputbox" type="number" step=any min=-90.0 max=90.0 ~~name~~="~~batch[position][latitude]~~">';		$html[] = '<input id="batch_latitude" name="batch[position][latitude]" class="inputbox" type="number" step=any min=-90.0 max=90.0 placeholder="0.0">';
	$html[] = '<label id="batch_longitude-lbl" for="batch_longitude">' .		$html[] = '<label id="batch_longitude-lbl" for="batch_longitude">' .
	JText::_('COM_HELLOWORLD_HELLOWORLD_FIELD_LONGITUDE_LABEL') . '</label>';		JText::_('COM_HELLOWORLD_HELLOWORLD_FIELD_LONGITUDE_LABEL') . '</label>';
	$html[] = '<input id="batch_longitude" class="inputbox" type="number" step=any min=-180.0 max=180.0 ~~name~~="~~batch[position][longitude]~~">';		$html[] = '<input id="batch_longitude" name="batch[position][longitude]" class="inputbox" type="number" step=any min=-180.0 max=180.0 placeholder="0.0">';
	$html[] = '</fieldset>';		$html[] = '</fieldset>';

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	We override the JModelAdmin <tt>batch()</tt> method in order to include our own batch Position method in the array of batch processes. We then write our <tt>batchPosition()</tt> method, which will check that the user has permission to change each of the helloworld records, and then apply the lat/long changes to the records.		We override the JModelAdmin <tt>batch()</tt> method in order to include our own batch Position method in the array of batch processes. We then write our <tt>batchPosition()</tt> method, which will check that the user has permission to change each of the helloworld records, and then apply the lat/long changes to the records.

	We also override the <tt>generateTitle()</tt> method which is used to generate a new title in the case where we're copying a record into a new category and there's a problem of uniqueness of the alias field (similar to the Save as Copy issue which was addressed in the [[S:MyLanguage/J3.2:Developing an MVC Component/Adding an alias \| Adding an alias]] tutorial step). We need to override the method because it assumes that 'title' is the name of the field to adjust, whereas in our case the field name is 'greeting'.		We also override the <tt>generateTitle()</tt> method which is used to generate a new title in the case where we're copying a record into a new category and there's a problem of uniqueness of the alias field (similar to the Save as Copy issue which was addressed in the [[S:MyLanguage/J3.2:Developing an MVC Component/Adding an alias \| Adding an alias]] tutorial step). We need to override the method because it assumes that 'title' is the name of the field to adjust, whereas in our case the field name is 'greeting'.

			In addition, as described in the accompanying video, the JModelAdmin functionality for copying records into a different category doesn't quite work for components with Levels. To correct this we can override the JModelAdmin <tt>batchCopy()</tt> method and include code to position each new record before it is saved.

	<span id="admin/models/helloworld.php">		<span id="admin/models/helloworld.php">

Robbiej: diagram added

2019-02-01T12:40:17Z

diagram added

← Older revision		Revision as of 12:40, 1 February 2019
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	== Approach ==		== Approach ==
	To implement the batch processes we have to consider the following aspects.		To implement the batch processes we have to consider the following aspects.

			{{-}}

	=== Batch Button and Modal ===		=== Batch Button and Modal ===
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	=== Handling the HTTP POST in the Controller ===		=== Handling the HTTP POST in the Controller ===

			[[File:joomla-batch.jpg\|right\|Joomla Batch Processing]]

	When the Process button is pressed the javascript code will submit the form and so initiate an HTTP POST request to the server with parameters which include		When the Process button is pressed the javascript code will submit the form and so initiate an HTTP POST request to the server with parameters which include

Robbiej: added language strings and source file links

2019-01-31T11:10:30Z

added language strings and source file links

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Robbiej: model changes included

2019-01-30T21:52:03Z

model changes included

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Robbiej: controller changes included

2019-01-30T21:24:03Z

controller changes included

@@ Line 552: / Line 552: @@
 </source>
 </span>
 == Packaging the Component ==