Árpád Lehel Mátyus

Atomic Events Calendar is built for developers and agencies who need events in WordPress without the overhead of full event management plugins.
Instead of starting from scratch on every project, Atomic Events Calendar gives you:
– A ready-to-use Events post type 
– Essential event fields (date, venue, type, etc.) 
– Developer-friendly shortcodes to display and filter events 
– A robust theming structure for easy overrides and custom designs
✨ Think of it as a lightweight framework disguised as a plugin: everything you need to set up events quickly, with the freedom to extend and customize as you like.
Perfect for agencies that want full control over their event implementations—without the bloat.
<h3>Features</h3>
<ul>
<li>Developer-Friendly – Clean code structure with services architecture</li>
<li>Responsive Design – Built with Tailwind CSS for modern, responsive layouts</li>
<li>Structured Data for Search Engines – Automatic JSON-LD schema markup for better SEO and rich snippets</li>
<li>Custom Post Type – Dedicated ‘atomic-event’ post type with all necessary fields</li>
<li>Template Override System – Easy theme integration with template hierarchy</li>
<li>Shortcode Support – Display events anywhere with <code>[atomic-events]</code> shortcode</li>
<li>Featured Events – Mark and display featured events prominently</li>
<li>Location Management – Complete address fields (street, city, state, country, postcode)</li>
<li>Date & Time Support – Start/end dates with time support</li>
<li>Image Support – Featured images with captions</li>
<li>Member-Only Events – Restrict events to members only</li>
<li>Performance Caching – Automatic shortcode caching with smart invalidation</li>
</ul>
Basic usage is through shortcode:
<pre><code>[atomic-events filter max='10' columns='3' featured='0' 
 skip_first_x='0' skip_first_x_featured='1' order='ASC']
</code></pre>
<h3>How can I customize the event template?</h3>
The plugin provides a default template for single events, but you can override it in your theme:
<ol>
<li>Child Theme (recommended): Copy the template to <code>child-theme/atomic-events/single/single-atomic-event.php</code></li>
<li>Parent Theme: Copy the template to <code>parent-theme/atomic-events/single/single-atomic-event.php</code></li>
</ol>
The plugin will automatically use your theme’s version instead of the default.
See the example template in <code>templates/theme-override-example.php</code> for reference.
<h4>My event pages show 404 errors</h4>
If you experience 404 errors when viewing event pages: 
1. Go to WordPress Admin → Events → Settings 
2. Click “Flush Rewrite Rules” 
3. If that doesn’t work, go to Settings → Permalinks and click “Save Changes”
<h3>Template Structure</h3>
The plugin provides a comprehensive template override system. You can override any template by creating files in your theme:
<pre>
 your-theme/
 └── atomic-events/
 │ ├── cards/
 │ │ ├── card-item-default.php
 │ │ ├── card-item-featured.php
 │ │ ├── card-list-header-default.php
 │ │ └── card-list-footer-default.php
 │ ├── single/
 │ │ └── single-atomic-event.php
 │ ├── content/
 │ │ └── single-event.php
 │ 
</pre>
<h3>Template Hierarchy</h3>
The plugin follows WordPress template hierarchy for single event pages. Templates are loaded in this order of priority:
<ol>
<li>Child Theme: <code>child-theme/atomic-events/single/single-atomic-event.php</code></li>
<li>Parent Theme: <code>parent-theme/atomic-events/single/single-atomic-event.php</code></li>
<li>Plugin Default: <code>plugin/templates/single/single-atomic-event.php</code></li>
</ol>
<h3>Template Override System</h3>
The plugin uses a custom template loader that checks for theme templates first, then falls back to the plugin’s default template. This ensures:
– Theme compatibility: Works with any WordPress theme 
– Customization flexibility: Easy to override in themes 
– Update safety: Plugin updates won’t break custom templates 
– Developer-friendly: Clear hierarchy and fallback system
Template Hierarchy Priority:
<ol>
<li>Child Theme: <code>child-theme/atomic-events/[template-name].php</code></li>
<li>Parent Theme: <code>parent-theme/atomic-events/[template-name].php</code></li>
<li>Plugin Default: <code>plugin/templates/[template-name].php</code></li>
</ol>
Available Templates: 
– Shortcode Templates: Override how events appear in lists and grids 
– Single Event Templates: Customize individual event page layouts 
– Content Templates: Modify event content display
The default template includes: 
– WordPress header/footer integration 
– Event model for accessing custom fields 
– Template loader for modular content parts 
– Proper WordPress loop structure
<h3>Custom Fields Available</h3>
When creating custom templates, you have access to these event fields:
<pre>
$event_model = new AtomicEventModel(get_the_ID());

// Basic event data
$event_model->get_title();
$event_model->get_event_start_date();
$event_model->get_event_end_date();
$event_model->get_event_venue();
$event_model->get_event_location_city();
$event_model->get_event_country();
$event_model->get_event_location_state();
$event_model->get_event_location_region();

// Event settings
$event_model->is_featured();
$event_model->is_member_only();
$event_model->get_event_all_day();

// Additional data
$event_model->get_event_outbound_link();
$event_model->get_event_tag();
$event_model->get_event_image_id();
$event_model->get_permalink();
</pre>
<h3>Creating Custom Templates</h3>
<ol>
<li>Copy the example template from <code>templates/theme-override-example.php</code></li>
<li>Place it in your theme at the appropriate path</li>
<li>Customize the template as needed</li>
<li>Test thoroughly to ensure proper functionality</li>
</ol>
<h3>Hooks and Filters</h3>
The plugin provides several hooks for customization:
<pre>
// Filter the template path
add_filter('atomic_events_template_path', 'my_custom_template_path', 10, 2);

// Filter event data before display
add_filter('atomic_events_event_data', 'my_custom_event_data', 10, 2);

// Filter whether to show event in lists
add_filter('atomic_events_should_show_in_list', 'my_custom_visibility_logic', 10, 2);
</pre>
<h3>Shortcode Parameters</h3>
The <code>[atomic-events]</code> shortcode supports these parameters:
– <code>filter</code>: “future” or “past” (default: “future”) 
– <code>max</code>: Maximum number of events (default: 20) 
– <code>columns</code>: Number of columns (default: 3) 
– <code>featured</code>: Show only featured events (true/false) 
– <code>skip_first_x</code>: Skip first X events 
– <code>skip_first_x_featured</code>: Skip first X featured events 
– <code>order</code>: “ASC” or “DESC” (default: “ASC”)
<h3>Best Practices</h3>
<ol>
<li>Always use child themes for customizations</li>
<li>Test with different themes to ensure compatibility</li>
<li>Use the event model for accessing custom fields</li>
<li>Follow WordPress coding standards</li>
<li>Document custom modifications</li>
<li>Test thoroughly before deployment</li>
</ol>

Atomic Events Calendar

Atomic Events Calendar: A lightweight WordPress events framework that gives agencies full control without the bloat.

totalsoft

Event Calendar is a flexible calendar plugin that allows you to connect to your database and show up your event days on a view. Calendar can render a Day, Week, Month and Resource calendar view. The also provides an interface for manipulating and formatting dates and times. Each event box has a link to the original event you defined in your calendar.
<ul>
<li><a href="https://total-soft.com/wp-event-calendar" rel="nofollow ugc">Event Calendar Premium</a></li>
<li><a href="https://total-soft.com/event-calendar-classic-1" rel="nofollow ugc">All Calendar Demo Types</a></li>
<li><a href="http://total-soft.pe.hu/calendar-event-faq/" rel="nofollow ugc">Event Calendar FAQ</a></li>
<li><a href="http://total-soft.pe.hu/calendar-event-user-manual/" rel="nofollow ugc">Event Calendar User Manual</a></li>
<li><a href="https://wordpress.org/support/plugin/calendar-event" rel="ugc">Support Forum</a></li>
</ul>
<h4>Features</h4>
<ul>
<li>Plugin for create a calendar with events.</li>
<li>Intuitive event labels.</li>
<li>Easy to customize.</li>
<li>Use as a date picker or a full fledged calendar.</li>
<li>10 free themes with the option of select data ranges, mark events and others (4 versions of the event calendar type, 2 versions of the simple type, 2 versions of the flexible type and 2 versions of the timeline type)</li>
<li>You can easily list your events on wherever you want on your page via shortcodes.</li>
<li>Each event box has a link to the original event you defined in your calendar.</li>
<li>Allows you to set the most appropriate navigation arrows, which will suit the best for your web site.</li>
<li>The ability to display multiple events for a single day.</li>
<li>Plugin lets you change the color and set it to the colors of your site.</li>
<li>You can change the start and end date of the event.</li>
<li>You can change the start and end time of events.</li>
<li>You can customize the calendar color, font size and font family.</li>
<li>The ability to change the color of the arrow and background color.</li>
<li>Each species has a unique customizable settings.</li>
<li>Add an unlimited number of events in one calendar. As you have already created a number of events, you can add via the shortcodes on your page as you need.</li>
<li>Each calendar can be inserted in a page, post or widget shortcode.</li>
<li>You can add photos to the events (all types)</li>
<li>Total Calendar, Timeline, Crazy, Schedule and Full Year types each event has its own color.</li>
<li>Possibility to preview the theme in calendar before putting it on the page.</li>
</ul>
<h3><a href="https://total-soft.com/wp-event-calendar/" rel="nofollow ugc">Premium version adds</a></h3>
<ul>
<li><a href="https://total-soft.com/event-calendar-crazy-1" rel="nofollow ugc">3 beautiful customizable themes</a></li>
<li><a href="https://total-soft.com/event-calendar-crazy-2" rel="nofollow ugc">Crazy Calendar Theme</a></li>
<li><a href="https://total-soft.com/event-calendar-schedule-2" rel="nofollow ugc">Schedule Theme</a></li>
<li><a href="https://total-soft.com/event-calendar-full-year-1" rel="nofollow ugc">Full Year Calendar Theme</a></li>
<li>Recurring events – Daily, Weekly, Monthly, Yearly </li>
<li>WeekDay Start – Can select that day, which must be the first in the week.</li>
<li>Weekday – Ability to select the style of calendar week.</li>
<li>Todays numbers Color – Can choose the date color, that will be displayed.</li>
<li>Icon – Possibility select the right and the left icons, which are, for change the months by sequence.</li>
<li>Color – The plugin allows to change the color and enter it in the colors of your site.</li>
<li>Font – The plugin allows to change the color of the date, font size and font family.</li>
<li>This opens up new useful functions and new possibilities.</li>
</ul>
In addition to the features mentioned above, there are many other functions inside the plugin. You get the advantage of an intuitive user interface, that makes the plugin operation easy, easy to understand the calendar options, as well as many hooks and filters to control the output.
<h3>Main features of Event.</h3>
<ul>
<li>Event Title – You can give a name for event.</li>
<li>Calendar Name – Choose that version of themes, in which you want to see the Events.</li>
<li>Start Date – You Can select the start of the event (To display events in the calendar if you have a browser Safari, firefox or Internet explorer should write yyyy-mm-dd).</li>
<li>End Date – You Can select the finish date of the event (To display events if you have a browser Safari, firefox or Internet explorer should write yyyy-mm-dd).</li>
<li>Event URL – You can set external URL, which should be included in the event.</li>
<li>Open in new tab – Choose, by clicking on the link should open in new tab or not.</li>
<li>Start Time (Required field) – Can select the event start time (To display events in the calendar if you have a browser Safari, Firefox or Internet explorer should write hh:mm).</li>
<li>End Time (Required field) – Can select the event end time (To display events if you have a browser Safari, Firefox or Internet explorer should write hh:mm).</li>
<li>Event color – Select that color, which you want to see for your event, which shows in the calendar (Event Color option is only for Event Calendar Type.).</li>
<li>Description – You can give a description for event.</li>
<li>Event Image/Video – You can give a Image and Video(YouTube and Vimeo) for event. Event Image and Video option is available for all types.</li>
</ul>
Insert plugin to the WordPress page, post, widget – Every calendar could be inserted into a page, post or widget with shortcode.
Plugin works in Chrome, Safari, Opera, Firefox, Internet Explorer – Use your calendar with all the popular browsers.
Navigation Arrow – Plugin allows you to get the most suitable navigation arrows that fit best for your website.
The Plugin is Truly Wonderful – You can create a very nice and beautiful calendar for your website. The plugin is easily editable and functionality perfectly.
Link – There is a special place for adding a Link to each event. Choose to open the Link in the new tab or not.
<h4>Technical Support</h4>
<ul>
<li>
If you notice any errors or have any questions with our event calendar, you can notify us. We will investigate and solve the problem. Check out the <a href="https://wordpress.org/support/plugin/calendar-event" rel="ugc">Event Calendar Support Forum</a> on our website. If you don’t find a solution to your question here, don’t hesitate to <a href="https://total-soft.com/contact-us/" rel="nofollow ugc">click here to contact us</a>.Event Calendar is a flexible calendar plugin that allows you to connect to your database and show up your event days on a view. Calendar can render a Day, Week, Month and Resource calendar view. The also provides an interface for manipulating and formatting dates and times. Each event box has a link to the original event you defined in your calendar.
</li>
<li>
<a href="https://total-soft.com/wp-event-calendar" rel="nofollow ugc">Event Calendar Premium</a>
</li>
<li><a href="https://total-soft.com/event-calendar-classic-1" rel="nofollow ugc">All Calendar Demo Types</a></li>
<li><a href="http://total-soft.pe.hu/calendar-event-faq/" rel="nofollow ugc">Event Calendar FAQ</a></li>
<li><a href="http://total-soft.pe.hu/calendar-event-user-manual/" rel="nofollow ugc">Event Calendar User Manual</a></li>
<li><a href="https://wordpress.org/support/plugin/calendar-event" rel="ugc">Support Forum</a></li>
</ul>
<h4>Features</h4>
<ul>
<li>Plugin for create a calendar with events.</li>
<li>Intuitive event labels.</li>
<li>Easy to customize.</li>
<li>Use as a date picker or a full fledged calendar.</li>
<li>10 free themes with the option of select data ranges, mark events and others (4 versions of the event calendar type, 2 versions of the simple type, 2 versions of the flexible type and 2 versions of the timeline type)</li>
<li>You can easily list your events on wherever you want on your page via shortcodes.</li>
<li>Each event box has a link to the original event you defined in your calendar.</li>
<li>Allows you to set the most appropriate navigation arrows, which will suit the best for your web site.</li>
<li>The ability to display multiple events for a single day.</li>
<li>Plugin lets you change the color and set it to the colors of your site.</li>
<li>You can change the start and end date of the event.</li>
<li>You can change the start and end time of events.</li>
<li>You can customize the calendar color, font size and font family.</li>
<li>The ability to change the color of the arrow and background color.</li>
<li>Each species has a unique customizable settings.</li>
<li>Add an unlimited number of events in one calendar. As you have already created a number of events, you can add via the shortcodes on your page as you need.</li>
<li>Each calendar can be inserted in a page, post or widget shortcode.</li>
<li>You can add photos to the events (all types)</li>
<li>Total Calendar, Timeline, Crazy, Schedule and Full Year types each event has its own color.</li>
<li>Possibility to preview the theme in calendar before putting it on the page.</li>
</ul>
<h3><a href="https://total-soft.com/wp-event-calendar/" rel="nofollow ugc">Premium version adds</a></h3>
<ul>
<li><a href="https://total-soft.com/event-calendar-crazy-1" rel="nofollow ugc">3 beautiful customizable themes</a></li>
<li><a href="https://total-soft.com/event-calendar-crazy-2" rel="nofollow ugc">Crazy Calendar Theme</a></li>
<li><a href="https://total-soft.com/event-calendar-schedule-2/" rel="nofollow ugc">Schedule Theme</a></li>
<li><a href="https://total-soft.com/event-calendar-full-year-1" rel="nofollow ugc">Full Year Calendar Theme</a></li>
<li>Recurring events – Daily, Weekly, Monthly, Yearly </li>
<li>WeekDay Start – Can select that day, which must be the first in the week.</li>
<li>Weekday – Ability to select the style of calendar week.</li>
<li>Todays numbers Color – Can choose the date color, that will be displayed.</li>
<li>Icon – Possibility select the right and the left icons, which are, for change the months by sequence.</li>
<li>Color – The plugin allows to change the color and enter it in the colors of your site.</li>
<li>Font – The plugin allows to change the color of the date, font size and font family.</li>
<li>This opens up new useful functions and new possibilities.</li>
</ul>
In addition to the features mentioned above, there are many other functions inside the plugin. You get the advantage of an intuitive user interface, that makes the plugin operation easy, easy to understand the calendar options, as well as many hooks and filters to control the output.
<h3>Main features of Event.</h3>
<ul>
<li>Event Title – You can give a name for event.</li>
<li>Calendar Name – Choose that version of themes, in which you want to see the Events.</li>
<li>Start Date – You Can select the start of the event (To display events in the calendar if you have a browser Safari, firefox or Internet explorer should write yyyy-mm-dd).</li>
<li>End Date – You Can select the finish date of the event (To display events if you have a browser Safari, firefox or Internet explorer should write yyyy-mm-dd).</li>
<li>Event URL – You can set external URL, which should be included in the event.</li>
<li>Open in new tab – Choose, by clicking on the link should open in new tab or not.</li>
<li>Start Time (Required field) – Can select the event start time (To display events in the calendar if you have a browser Safari, Firefox or Internet explorer should write hh:mm).</li>
<li>End Time (Required field) – Can select the event end time (To display events if you have a browser Safari, Firefox or Internet explorer should write hh:mm).</li>
<li>Event color – Select that color, which you want to see for your event, which shows in the calendar (Event Color option is only for Event Calendar Type.).</li>
<li>Description – You can give a description for event.</li>
<li>Event Image/Video – You can give a Image and Video(YouTube and Vimeo) for event. Event Image and Video option is available for all types.</li>
</ul>
Insert plugin to the WordPress page, post, widget – Every calendar could be inserted into a page, post or widget with shortcode.
Plugin works in Chrome, Safari, Opera, Firefox, Internet Explorer – Use your calendar with all the popular browsers.
Navigation Arrow – Plugin allows you to get the most suitable navigation arrows that fit best for your website.
The Plugin is Truly Wonderful – You can create a very nice and beautiful calendar for your website. The plugin is easily editable and functionality perfectly.
Link – There is a special place for adding a Link to each event. Choose to open the Link in the new tab or not.
<h4>Technical Support</h4>
<ul>
<li>If you notice any errors or have any questions with our event calendar, you can notify us. We will investigate and solve the problem. Check out the <a href="https://wordpress.org/support/plugin/calendar-event" rel="ugc">Event Calendar Support Forum</a> on our website. If you don’t find a solution to your question here, don’t hesitate to <a href="https://total-soft.com/contact-us/" rel="nofollow ugc">click here to contact us</a>.</li>
</ul>
<h3></h3>
<h3>Event Calendar – Calendar</h3>
Contributors: totalsoft 
Donate link: https://total-soft.com/wp-event-calendar 
Tags: Calendar, event calendar, wp calendar, event, events, 
Requires at least: 3.4 
Tested up to: 6.6 
Stable tag: 1.5.9 
License: GPLv2 or later 
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Event Calendar plugin created for showing your events. Event Calendar is the best if you want to be original on your website.

Event Calendar – Calendar

Event Calendar plugin created for showing your events. Event Calendar is the best if you want to be original on your website.

Atomic Events Calendar vs Event Calendar – Calendar