d'Hinnisdaël

ImageOptim — automatic image optimization

Recommended Posts

So I decided to wade into module development and created a wrapper module around ImageOptim, a service that compresses and optimizes images in the cloud. ImageOptim currently handles JPG, PNG and GIF files and, depending on the settings you use, shaves off between 15% and 60% in filesize. Great for bandwidth and great for users, especially on mobile.

This module handles the part of uploading images to ImageOptim via their official API, downloading the optimized version and storing it alongside the original image.
 

ImageOptim.png

 

Download & Info

GitHub / Module directoryReadme / Usage
 

Why ImageOptim?

There are other image optimization services out there, some of them free, that have outstanding ProcessWire modules. A few things make ImageOptim the best tool for most of my customers: It's not free, i.e. it will probably be around for a while and offers support. However, it's cheaper than some of the bigger competitors like Cloudinary. And it does PNG compression better than any of the free services out there, especially those with alpha channels.
 

Installation

Install the module like any other ProcessWire module, by either copying the folder into your modules folder or installing it via the admin. See above for downloads links on GitHub and in the module directory.
 

Requirements

To be able to upload images to the service, allow_url_fopen must be set on the server. The module will abort installation if that's not the case.

I have only tested the module on ProcessWire 3.x installations. I don't see why it shouldn't work in 2.x, if anyone wants to try it out and report back.
 

ImageOptim account

To compress images, you first need to sign up for an ImageOptim account. They offer free trials to try the service.
 

Usage (manual optimization)

Images can be optimized by calling the optimize() method on any image. You can pass an options array to set ImageOptim API parameters.

$image->size(800,600)->optimize()->url
$image->optimize(['quality' => 'low', 'dpr' => 2]) // Set quality to low and enable hi-dpi mode


Automatic optimization

The module also has an automatic mode that optimizes all image variations after resizing. This is the recommended way to use this module since it leaves the original image uncompressed, but optimizes all derivative images.

$image->size(800,600)->url // nothing to do here; image is optimized automatically


To change compression setting for single images, you can pass an options array along with the standard ImageResizer options. Passing false disables optimization.

$image->size(800, 600, ['optimize' => 'medium'])
$image->size(800, 600, ['optimize' => ['quality' => 'low', 'dpr' => 2]])
$image->size(800, 600, ['optimize' => false])


For detailed usage instructions and all API parameters, see the usage instructions on GitHub.
 

Filenames

Optimized images will be suffixed, e.g. image.jpg becomes image.optim.jpg. You can configure the suffix in the module settings.
 

Roadmap

  • Asynchronous processing. Not really high on the list. Image variations need to be created anyway, so waiting a few seconds longer on first load is preferable to adding complexity to achieve async optimization.
  • Optimize image variations created by other modules. CroppableImage comes to mind. I don't use any of these, so if somebody wants to help out and submit a pull request — all for it!
  • Add a dedicated page in the setup menu with a dashboard and detailed statistics. ImageOptim's API is very barebones for now, so not sure if that's feasible or even necessary.


Stability

I've been using this module on production sites for some time now, without hiccups. If you do notice oddities, feel free to comment here or investigate and submit PRs.

  • Like 11
  • Thanks 2

Share this post


Link to post
Share on other sites

Hi @d'Hinnisdaël,

many thanks for this well crafted module. ^-^

I (only) have read the modules code and checked some, (maybe critical) points for image modules ;). Everything seems to be well done! Only one thing I spotted, needs a bit clarification from you, as I may not see the whole picture yet.

You added a new hook delete to Pageimage. I cannot see how this integrates with PW's methods for deleting variations. How gets it invoked when I a) delete an image via UI and b) when I call removeVariations() via the API? Or what is it for, exactly?

Besides the integration with unlink & removeVariations, it may be very useful to have a function that only removes the variations from ImageOptim!

 

TL;DR

Spoiler

One possible solution, or the recommended one for this, would be to hook into isVariation(), as this is invoked from all PW functions (unlink, removeVariations).

If you don't want to use a semantically compatible suffix with your variations, you need to hook into this and have to keep track of adding the variations from this module to the methods result.

Or, if you change the none conform suffix to a supported one, you have to do nothing in this regard, (also don't need to add a hook delete), as it all is done from within PW.


// none conform
basename.optim.0x260-suffix1-suf2.ext

// PW conform
basename.0x260-optim-suffix1-suf2.ext
basename.0x260-suffix1-optim-suf2.ext
basename.0x260-suf2-suffix1-optim.ext

My concern is, if you do it like I understand it now, it may result in lots of lost variations across the assets/files directories when people use removeVariations(), what also is called by manually deleting images in the UI.


 

  • Like 7

Share this post


Link to post
Share on other sites

Dear @horst,

thanks for the valuable feedback.

Indeed you mentioned a very good point. I suspect I had a slightly different than usual understanding of how to remove image variations created by modules. The current implementation uses a glob (/{page folder}/{original file basename}.*) to delete variations.

I'll update the module to use the standard naming scheme — this will have its benefits especially in edge cases, e.g. images will then still get removed if the module is uninstalled or deactivated.

Also good idea about having a public method removeOptimizedVariations(). That will be very easy to implement with the previous issue.

  • Like 7

Share this post


Link to post
Share on other sites

Quick update and version bump to 0.1.0

I updated the module to use the standard ProcessWire variation suffixes. Instead of image.0x200.optim.jpg, optimized images will now be named image.0x200-optim.jpg. Deleting images in the admin or via the API will delete any optimized variations as before, but the process is a lot more straightforward now.

I also added a public method $image->removeOptimizedVariations() that does exactly what it says it does.

  • Like 4
  • Thanks 1

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.

  • Similar Content

    • By kongondo
      Sites Manager
       
      16 September 2018:
      FOR NOW, PLEASE DO NOT USE THIS MODULE IN A PRODUCTION SITE. A  RECENT ProcessWire UPDATE HAS BROKEN THE MODULE. I AM WORKING ON A FIX.
       
      ################
       
      Sites Manager is a module for ProcessWire that allows Superusers to easily create/install ProcessWire sites on the same serverspace the module is running in. Only Superusers can use the module. You can create both stand-alone and multi-sites.
       
      Single/Stand-alone Sites
      Stand-alone or single-sites are sites that will run in their own document root/directory with their own wire and site folders, .htaccess, index.php, etc. In other words, a normal ProcessWire site.
      Multiple Sites
      Multi-sites are sites that will run off one wire folder (shared amongst two or more sites) each having their own site folder and database. In this regard, it is important to note that Sites Manager is not in itself a multiple sites solution! Rather, it is a utility that helps you create multi-sites to be run using the ProcessWire core multiple sites feature. For more on this core feature, see the official ProcessWire documentation, specifically the solution referred to as Option #1.
      Option #1 approach requires the site admin to initially install ProcessWire in a temporary directory for each new site. The directory then needs to be renamed as site-xxx, where ‘xxx’ is any name you want to use to differentiate the installation from other sites, before it is moved to the webroot. For instance, site-mysite, site-another, site-whatever. In addition, the /wire/index.config.php file must be copied/moved to the webroot. Each time a site is added, the index.config.php has to be edited to add ‘domain’ => ‘site-directory’ key=>value pairs for the site. This process can become a bit tedious. This module aims to automate the whole multi-site site creation process.
      The module is based off the official ProcessWire installer. Creating a site is as simple as completing and submitting a single form! You also have the option to type and paste values or reuse a pre-defined install configuration.
       
      The module will:
      Install a ProcessWire site in your named directory, applying chmod values as specified
      Move the directory to your webroot
      Update/Create a Superuser account as per the submitted form, including setting the desired admin theme and colour
      For multi sites, update sites.json (used by index.config.php to get array of installed sites)
       
      For multi sites, the only difference in relation to the core multi-sites index.config.php is that this file is slightly different from the one that ships with ProcessWire.
      Download from GitHub: Sites Manager (Beta Release)
      Features
      Install unlimited number of sites in one (multi-sites) or independent (single-site) ProcessWire installs. Install by completing a Form, Typing or pasting in configurations or using pre-created install configurations. Choose an Admin Theme to auto-install along with the site installation. For single-sites installation, download, save and reuse ProcessWire versions of your choice. Install and maintain site profiles for reuse to create other sites. Create install configurations to speed up installation tasks. Client and server-side validation of site creation values. Edit uploaded profiles (e.g., replace profile file). Lock installed sites, configurations and profiles to prevent editing. Bulk delete items such as site profiles, installed site directories and/or databases (confirmation required for latter two). View important site details (admin login, chmod, etc). Links to installed sites home and admin pages. Timezones auto-complete/-suggest. Pre-requisites, Installation & Usage
      Please see the documentation.
      Technicalities/Issues
      Only Superusers can use the module.
      ProcessWire 2.7 - 3.x compatible
      Currently using ProcessWire 2.7 installer (install.php)
      For multi-sites, potential race condition when sites.json is being updated on a new site install vs. index.config.php accessing the json file?
      Not tested with sub-directory installs (for instance localhost/pw/my-site-here/)
      Currently not doing the extra/experimental database stuff (database charset and engine)
      Future Possibilities
      Install specified modules along with the ProcessWire install
      Profile previews?
      Credits
      @ryan: for the ProcessWire installer
      @abdus: for the index.config.php reading from JSON idea
      @swampmusic: for the challenge
      Video Demo
      Demo  showing how quick module works on a remote server [YMMV!]. Video shows downloading and processing two versions of ProcessWire (~takes 7 seconds) and installing a single/stand-alone ProcessWire 3 site using the new Admin Theme UI Kit (~2 seconds) on a remote server.
       
      Screens
      1

      2

       
       
    • By Robin S
      Breadcrumb Dropdowns
      Adds dropdown menus of page edit links to the breadcrumbs in Page Edit.

      Installation
      Install the Breadcrumb Dropdowns module. The module requires ProcessWire >= v3.0.83 and AdminThemeUikit.
      There is a checkbox option in the module config that determines if the breadcrumb dropdowns will include pages that the user does not have permission to edit.
      Features/details
      The module adds an additional breadcrumb item at the end for the currently edited page. That's because I think it's more intuitive for the dropdown under each breadcrumb item to show the item's sibling pages rather than the item's child pages. In the dropdown menus the current page and the current page's parents are highlighted in a crimson colour to make it easier to quickly locate them in case you want to edit the next or previous sibling page. Unpublished and hidden pages are indicated in the dropdowns with similar styling to that used in Page List. If the option to include uneditable pages is selected then those pages are indicated by italics with a reduced text opacity and the "not-allowed" cursor is shown on hover. There is a limit of 25 pages per dropdown for performance reasons and to avoid the dropdown becoming unwieldy. If the current user is allowed to add new pages under the parent page an "Add New" link is shown at the bottom of the breadcrumb dropdown. If the currently edited page has children or the user may add children, a caret at the end of the breadcrumbs reveals a dropdown of up to the first 25 children and/or an "Add New" link. Overriding the listed siblings for a page
      If you want to override the siblings that are listed in the dropdowns you can hook the BreadcrumbDropdowns::getSiblingsmethod and change the returned PageArray. For most use cases this won't be necessary.
      Incompatibilities
      This module replaces the AdminThemeUikit::renderBreadcrumbs method so will potentially be incompatible with other modules that hook the same method.
       
      https://modules.processwire.com/modules/breadcrumb-dropdowns/
      https://github.com/Toutouwai/BreadcrumbDropdowns
    • By bernhard
      Some of you might have followed the development of this module here: https://processwire.com/talk/topic/15524-previewdiscussion-rockdatatables/ . It is the successor of "RockDataTables" and requires RockFinder to get the data for the grid easily and efficiently. It uses the open source part of agGrid for grid rendering.
       
      WHY?
      ProcessWire is awesome for creating all kinds of custom backend applications, but where it is not so awesome in my opinion is when it comes to listing this data. Of course we have the built in page lister and we have ListerPro, but none of that solutions is capable of properly displaying large amounts of data, for example lists of revenues, aggregations, quick and easy sorts by the user, instant filter and those kind of features. RockGrid to the rescue 😉 
       
      Features/Highlights:
      100k+ rows Instant (client side) filter, search, sort (different sort based on data type, eg "lower/greater than" for numbers, "contains" for strings) extendable via plugins (available plugins at the moment: fullscreen, csv export, reload, batch-processing of data, column sum/statistics, row selection) all the agGrid features (cell renderers, cell styling, pagination, column grouping etc) vanilla javascript, backend and frontend support (though not all plugins are working on the frontend yet and I don't plan to support it as long as I don't need it myself)  
      Limitations:
      While there is an option to retrieve data via AJAX the actual processing of the grid (displaying, filtering, sorting) is done on the client side, meaning that you can get into troubles when handling really large datasets of several thousands of rows. agGrid should be one of the most performant grid options in the world (see the official example page with a 100k row example) and does a lot to prevent problems (such as virtual row rendering), but you should always have this limitation in mind as this is a major difference to the available lister options that do not have this limitation.
      Currently it only supports AdminThemeUikit and I don't plan to support any other admin theme.
       
      Download: https://gitlab.com/baumrock/FieldtypeRockGrid
      Installation: https://gitlab.com/baumrock/RockGrid/wikis/Installation
      Quikckstart: https://gitlab.com/baumrock/RockGrid/wikis/quickstart
      Further instructions: https://gitlab.com/baumrock/RockGrid/wikis/quickstart#further-instructions
      Changelog: https://gitlab.com/baumrock/FieldtypeRockGrid/raw/master/changelog.md
       
      Module status: alpha, License: MIT
      Note that every installation and uninstallation sends an anonymous google analytics event to my google analytics account. If you don't want that feel free to remove the appropriate lines of code before installation/uninstallation.
       
      Contribute:
      You can contribute to the development of this and other modules or just say thank you by
      testing, reporting issues and making PRs at gitlab liking this post buying me a drink: paypal.me/baumrock/5 liking my facebook page: facebook.com/baumrock hiring me for pw work: baumrock.com  
      Support: Please note that this module might not be as easy and plug&play as many other modules. It needs a good understanding of agGrid (and JavaScript in general) and it likely needs some looks into the code to get all the options. Please understand that I can not provide free support for every request here in the forum. I try to answer all questions that might also help others or that might improve the module but for individual requests I offer paid support for 60€ per hour (excl vat).
       
      Use Cases / Examples:
      Colored grid cells, Icons, Links etc. The Grid also has a "batcher" feature built in that helps communicating with the server via AJAX and managing resource intensive tasks in batches:

      Filters, PW panel links and instant reload on panel close:

      You can combine the grid with a chart library like I did with the (outdated) RockDataTables module:

    • By Ken Muldrew
      I'm trying to get a short routine to run once per day that will look at some pages and send a reminder email when that customer's subscription (yearly) is about to expire. When I run the code in a template then it works without issue, but inside my lazycron service routine, I get an "Error: Uncaught Error: Call to a member function get() on null" as if the database cannot be found. My autoload module is just the sample HelloWorld module included with ProcessWire, editted to perform this task. The whole of it is included below (I've stripped out the code that generates the email because it never gets past $pages->find):
       
      <?php namespace ProcessWire;
      /**
       * ProcessWire 'LazyCronLoad'  module
       *
       */
      class LazyCronLoad extends WireData implements Module {
          public static function getModuleInfo() {
              return array(
                  'title' => 'LazyCronLoad', 
                  'version' => 1, 
                  'summary' => 'Just loads a lazy cron callback.',
                  'singular' => true, 
                  'autoload' => true, 
                  );
          }
          public function init() {
              // initialize the hook in the AutoLoad module
              $this->addHook('LazyCron::everyDay', $this, 'myHook');
              
          }
          public function myHook(HookEvent $e) {
              // called once per day
              wire('log')->save('user_activities',' lazy cron service routine');
                  $transport_pages = $pages->find("template=aggregate-entry, aggregate_type.title='Transport'");
                  foreach ($transport_pages as $page) {
                      if (($page->purchase_date + 30325800 < time()) && ($page->purchase_date + 30412600 > time())) { // between 351 and 352 days
                          wire('log')->save('user_activities', $page->id . ' email reminder sent');
                          // send email
                  }
              }
          }        
          
      }
      The first wire('log') shows up but the second one doesn't (the purchase_date condition is met (as demonstrated by running the code in a template close in time to when the lazycron routine executes)). The error log gives the Uncaught Error shown above. 
      I think this is a beginner's mistake with something obvious being missed and would be grateful for any assistance in fixing it.
    • By Robin S
      Remove Blocks
      A textformatter module for ProcessWire that removes blocks of text/markup between configurable delimiters from output. This allows you to "comment out" blocks of text/markup so they remain present in the field but are not shown in the front-end output.
      This can be handy if content needs to be removed temporarily and will later be reinstated. Or you could use a commented block as a placeholder to indicate to an editor where some content should be added.
      Installation
      Install the Remove Blocks module.
      Configure the open and close delimiters if needed. The default open delimiter is {{ and the default close delimiter is }}. Tip: don't use delimiter characters that CKEditor will encode to HTML entities, e.g. >.
      Usage
      Add the Remove Blocks textformatter to one or more fields.
      Add the open and close delimiters around any content that you want to be removed from output.

       
      https://github.com/Toutouwai/TextformatterRemoveBlocks
      http://modules.processwire.com/modules/textformatter-remove-blocks/