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<div class="document" id="fs-image">
<h1 class="title">Fs Image</h1>
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<p><a class="reference external image-reference" href="https://odoo-community.org/page/development-status"><img alt="Alpha" src="https://img.shields.io/badge/maturity-Alpha-red.png" /></a> <a class="reference external image-reference" href="http://www.gnu.org/licenses/agpl-3.0-standalone.html"><img alt="License: AGPL-3" src="https://img.shields.io/badge/licence-AGPL--3-blue.png" /></a> <a class="reference external image-reference" href="https://github.com/OCA/storage/tree/16.0/fs_image"><img alt="OCA/storage" src="https://img.shields.io/badge/github-OCA%2Fstorage-lightgray.png?logo=github" /></a> <a class="reference external image-reference" href="https://translation.odoo-community.org/projects/storage-16-0/storage-16-0-fs_image"><img alt="Translate me on Weblate" src="https://img.shields.io/badge/weblate-Translate%20me-F47D42.png" /></a> <a class="reference external image-reference" href="https://runboat.odoo-community.org/builds?repo=OCA/storage&amp;target_branch=16.0"><img alt="Try me on Runboat" src="https://img.shields.io/badge/runboat-Try%20me-875A7B.png" /></a></p>
<p>This addon defines a new field <strong>FSImage</strong> to use in your models. It is a
subclass of the <strong>FSFile</strong> field and comes with the same features. It extends
the <strong>FSFile</strong> field with specific properties dedicated to images. On the field
definition, the following additional properties are available:</p>
<ul class="simple">
<li><strong>max_width</strong> (int): maximum width of the image in pixels (default: <tt class="docutils literal">0</tt>, no limit)</li>
<li><strong>max_height</strong> (int): maximum height of the image in pixels (default: <tt class="docutils literal">0</tt>, no limit)</li>
<li><strong>verify_resolution</strong> (bool):whether the image resolution should be verified
to ensure it doesn’t go over the maximum image resolution (default: <tt class="docutils literal">True</tt>).
See <cite>odoo.tools.image.ImageProcess</cite> for maximum image resolution (default: <tt class="docutils literal">50e6</tt>).</li>
</ul>
<p>On the field’s value side, the value is an instance of a subclass of
<cite>odoo.addons.fs_file.fields.FSFileValue</cite>. It extends the class to allows
you to manage an alt_text for the image. The alt_text is a text that will be
displayed when the image cannot be displayed.</p>
<div class="admonition important">
<p class="first admonition-title">Important</p>
<p class="last">This is an alpha version, the data model and design can change at any time without warning.
Only for development or testing purpose, do not use in production.
<a class="reference external" href="https://odoo-community.org/page/development-status">More details on development status</a></p>
</div>
<p><strong>Table of contents</strong></p>
<div class="contents local topic" id="contents">
<ul class="simple">
<li><a class="reference internal" href="#usage" id="toc-entry-1">Usage</a></li>
<li><a class="reference internal" href="#changelog" id="toc-entry-2">Changelog</a><ul>
<li><a class="reference internal" href="#section-1" id="toc-entry-3">16.0.1.0.3 (2024-02-23)</a></li>
<li><a class="reference internal" href="#section-2" id="toc-entry-4">16.0.1.0.2 (2023-12-02)</a></li>
<li><a class="reference internal" href="#section-3" id="toc-entry-5">16.0.1.0.1 (2023-12-02)</a></li>
</ul>
</li>
<li><a class="reference internal" href="#bug-tracker" id="toc-entry-6">Bug Tracker</a></li>
<li><a class="reference internal" href="#credits" id="toc-entry-7">Credits</a><ul>
<li><a class="reference internal" href="#authors" id="toc-entry-8">Authors</a></li>
<li><a class="reference internal" href="#contributors" id="toc-entry-9">Contributors</a></li>
<li><a class="reference internal" href="#maintainers" id="toc-entry-10">Maintainers</a></li>
</ul>
</li>
</ul>
</div>
<div class="section" id="usage">
<h1><a class="toc-backref" href="#toc-entry-1">Usage</a></h1>
<p>This new field type can be used in the same way as the odoo ‘Image’ field type.</p>
<pre class="code python literal-block">
<span class="kn">from</span> <span class="nn">odoo</span> <span class="kn">import</span> <span class="n">models</span><span class="w">
</span><span class="kn">from</span> <span class="nn">odoo.addons.fs_image.fields</span> <span class="kn">import</span> <span class="n">FSImage</span><span class="w">
</span><span class="k">class</span> <span class="nc">MyModel</span><span class="p">(</span><span class="n">models</span><span class="o">.</span><span class="n">Model</span><span class="p">):</span><span class="w">
</span> <span class="n">_name</span> <span class="o">=</span> <span class="s1">'my.model'</span><span class="w">
</span> <span class="n">image</span> <span class="o">=</span> <span class="n">FSImage</span><span class="p">(</span><span class="s1">'Image'</span><span class="p">,</span> <span class="n">max_width</span><span class="o">=</span><span class="mi">1920</span><span class="p">,</span> <span class="n">max_height</span><span class="o">=</span><span class="mi">1920</span><span class="p">)</span>
</pre>
<pre class="code xml literal-block">
<span class="nt">&lt;record</span><span class="w"> </span><span class="na">id=</span><span class="s">&quot;my_model_form&quot;</span><span class="w"> </span><span class="na">model=</span><span class="s">&quot;ir.ui.view&quot;</span><span class="nt">&gt;</span><span class="w">
</span><span class="nt">&lt;field</span><span class="w"> </span><span class="na">name=</span><span class="s">&quot;name&quot;</span><span class="nt">&gt;</span>my.model.form<span class="nt">&lt;/field&gt;</span><span class="w">
</span><span class="nt">&lt;field</span><span class="w"> </span><span class="na">name=</span><span class="s">&quot;model&quot;</span><span class="nt">&gt;</span>my.model<span class="nt">&lt;/field&gt;</span><span class="w">
</span><span class="nt">&lt;field</span><span class="w"> </span><span class="na">name=</span><span class="s">&quot;arch&quot;</span><span class="w"> </span><span class="na">type=</span><span class="s">&quot;xml&quot;</span><span class="nt">&gt;</span><span class="w">
</span><span class="nt">&lt;form&gt;</span><span class="w">
</span><span class="nt">&lt;sheet&gt;</span><span class="w">
</span><span class="nt">&lt;group&gt;</span><span class="w">
</span><span class="nt">&lt;field</span><span class="w"> </span><span class="na">name=</span><span class="s">&quot;image&quot;</span><span class="w"> </span><span class="na">class=</span><span class="s">&quot;oe_avatar&quot;</span><span class="nt">/&gt;</span><span class="w">
</span><span class="nt">&lt;/group&gt;</span><span class="w">
</span><span class="nt">&lt;/sheet&gt;</span><span class="w">
</span><span class="nt">&lt;/form&gt;</span><span class="w">
</span><span class="nt">&lt;/field&gt;</span><span class="w">
</span><span class="nt">&lt;/record&gt;</span>
</pre>
<p>In the example above, the image will be resized to 1920x1920px if it is larger than that.
The widget used in the form view will also allow the user set an ‘alt’ text for the image.</p>
<p>A mode advanced and useful example is the following:</p>
<pre class="code python literal-block">
<span class="kn">from</span> <span class="nn">odoo</span> <span class="kn">import</span> <span class="n">models</span><span class="w">
</span><span class="kn">from</span> <span class="nn">odoo.addons.fs_image.fields</span> <span class="kn">import</span> <span class="n">FSImage</span><span class="w">
</span><span class="k">class</span> <span class="nc">MyModel</span><span class="p">(</span><span class="n">models</span><span class="o">.</span><span class="n">Model</span><span class="p">):</span><span class="w">
</span> <span class="n">_name</span> <span class="o">=</span> <span class="s1">'my.model'</span><span class="w">
</span> <span class="n">image_1920</span> <span class="o">=</span> <span class="n">FSImage</span><span class="p">(</span><span class="s1">'Image'</span><span class="p">,</span> <span class="n">max_width</span><span class="o">=</span><span class="mi">1920</span><span class="p">,</span> <span class="n">max_height</span><span class="o">=</span><span class="mi">1920</span><span class="p">)</span><span class="w">
</span> <span class="n">image_128</span> <span class="o">=</span> <span class="n">FSImage</span><span class="p">(</span><span class="s1">'Image'</span><span class="p">,</span> <span class="n">max_width</span><span class="o">=</span><span class="mi">128</span><span class="p">,</span> <span class="n">max_height</span><span class="o">=</span><span class="mi">128</span><span class="p">,</span> <span class="n">related</span><span class="o">=</span><span class="s1">'image_1920'</span><span class="p">,</span> <span class="n">store</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
</pre>
<pre class="code xml literal-block">
<span class="nt">&lt;record</span><span class="w"> </span><span class="na">id=</span><span class="s">&quot;my_model_form&quot;</span><span class="w"> </span><span class="na">model=</span><span class="s">&quot;ir.ui.view&quot;</span><span class="nt">&gt;</span><span class="w">
</span><span class="nt">&lt;field</span><span class="w"> </span><span class="na">name=</span><span class="s">&quot;name&quot;</span><span class="nt">&gt;</span>my.model.form<span class="nt">&lt;/field&gt;</span><span class="w">
</span><span class="nt">&lt;field</span><span class="w"> </span><span class="na">name=</span><span class="s">&quot;model&quot;</span><span class="nt">&gt;</span>my.model<span class="nt">&lt;/field&gt;</span><span class="w">
</span><span class="nt">&lt;field</span><span class="w"> </span><span class="na">name=</span><span class="s">&quot;arch&quot;</span><span class="w"> </span><span class="na">type=</span><span class="s">&quot;xml&quot;</span><span class="nt">&gt;</span><span class="w">
</span><span class="nt">&lt;form&gt;</span><span class="w">
</span><span class="nt">&lt;sheet&gt;</span><span class="w">
</span><span class="nt">&lt;group&gt;</span><span class="w">
</span><span class="nt">&lt;field</span><span class="w">
</span><span class="na">name=</span><span class="s">&quot;image_1920&quot;</span><span class="w">
</span><span class="na">class=</span><span class="s">&quot;oe_avatar&quot;</span><span class="w">
</span><span class="na">options=</span><span class="s">&quot;{'preview_image': 'image_128', 'zoom': true}&quot;</span><span class="w">
</span><span class="nt">/&gt;</span><span class="w">
</span><span class="nt">&lt;/group&gt;</span><span class="w">
</span><span class="nt">&lt;/sheet&gt;</span><span class="w">
</span><span class="nt">&lt;/form&gt;</span><span class="w">
</span><span class="nt">&lt;/field&gt;</span><span class="w">
</span><span class="nt">&lt;/record&gt;</span>
</pre>
<p>In the example above we have two fields, one for the original image and one for a thumbnail.
As the thumbnail is defined as a related stored field it’s automatically generated
from the original image, resized at the given size and stored in the database.
The thumbnail is then used as a preview image for the original image in the form view.
The main advantage of this approach is that the original image is not loaded in the form view
and the thumbnail is used instead, which is much smaller in size and faster to load.
The ‘zoom’ option allows the user to see the original image in a popup when clicking on the thumbnail.</p>
<p>For convenience, the ‘fs_image’ module also provides a ‘FSImageMixin’ mixin class
that can be used to add the ‘image’ and ‘image_medium’ fields to a model. It only
define the medium thumbnail as a 128x128px image since it’s the most common use case.
When using an image field in a model, it’s recommended to use this mixin class
in order ensure that the ‘image_medium’ field is always defined. A good practice
is to use the <cite>image_medium</cite> field as a preview image for the <cite>image</cite> field in
the form view to avoid to overload the form view with a large image and consume
too much bandwidth.</p>
<pre class="code python literal-block">
<span class="kn">from</span> <span class="nn">odoo</span> <span class="kn">import</span> <span class="n">models</span><span class="w">
</span><span class="k">class</span> <span class="nc">MyModel</span><span class="p">(</span><span class="n">models</span><span class="o">.</span><span class="n">Model</span><span class="p">):</span><span class="w">
</span> <span class="n">_name</span> <span class="o">=</span> <span class="s1">'my.model'</span><span class="w">
</span> <span class="n">_inherit</span> <span class="o">=</span> <span class="p">[</span><span class="s1">'fs_image.mixin'</span><span class="p">]</span>
</pre>
<pre class="code xml literal-block">
<span class="nt">&lt;record</span><span class="w"> </span><span class="na">id=</span><span class="s">&quot;my_model_form&quot;</span><span class="w"> </span><span class="na">model=</span><span class="s">&quot;ir.ui.view&quot;</span><span class="nt">&gt;</span><span class="w">
</span><span class="nt">&lt;field</span><span class="w"> </span><span class="na">name=</span><span class="s">&quot;name&quot;</span><span class="nt">&gt;</span>my.model.form<span class="nt">&lt;/field&gt;</span><span class="w">
</span><span class="nt">&lt;field</span><span class="w"> </span><span class="na">name=</span><span class="s">&quot;model&quot;</span><span class="nt">&gt;</span>my.model<span class="nt">&lt;/field&gt;</span><span class="w">
</span><span class="nt">&lt;field</span><span class="w"> </span><span class="na">name=</span><span class="s">&quot;arch&quot;</span><span class="w"> </span><span class="na">type=</span><span class="s">&quot;xml&quot;</span><span class="nt">&gt;</span><span class="w">
</span><span class="nt">&lt;form&gt;</span><span class="w">
</span><span class="nt">&lt;sheet&gt;</span><span class="w">
</span><span class="nt">&lt;group&gt;</span><span class="w">
</span><span class="nt">&lt;field</span><span class="w">
</span><span class="na">name=</span><span class="s">&quot;image&quot;</span><span class="w">
</span><span class="na">class=</span><span class="s">&quot;oe_avatar&quot;</span><span class="w">
</span><span class="na">options=</span><span class="s">&quot;{'preview_image': 'image_medium', 'zoom': true}&quot;</span><span class="w">
</span><span class="nt">/&gt;</span><span class="w">
</span><span class="nt">&lt;/group&gt;</span><span class="w">
</span><span class="nt">&lt;/sheet&gt;</span><span class="w">
</span><span class="nt">&lt;/form&gt;</span><span class="w">
</span><span class="nt">&lt;/field&gt;</span><span class="w">
</span><span class="nt">&lt;/record&gt;</span>
</pre>
</div>
<div class="section" id="changelog">
<h1><a class="toc-backref" href="#toc-entry-2">Changelog</a></h1>
<div class="section" id="section-1">
<h2><a class="toc-backref" href="#toc-entry-3">16.0.1.0.3 (2024-02-23)</a></h2>
<p><strong>Bugfixes</strong></p>
<ul class="simple">
<li>(<a class="reference external" href="https://github.com/OCA/storage/issues/305">#305</a>)</li>
</ul>
</div>
<div class="section" id="section-2">
<h2><a class="toc-backref" href="#toc-entry-4">16.0.1.0.2 (2023-12-02)</a></h2>
<p><strong>Bugfixes</strong></p>
<ul>
<li><p class="first">Fix view crash when uploading an image</p>
<p>The rawCacheKey is appropriately managed by the base class and reflects the
record’s last update datetime (write_date).
Since it lacks a setter, attempting to invalidate its value results in a view crash.
Nevertheless, the value will automatically be updated upon saving the record. (<a class="reference external" href="https://github.com/OCA/storage/issues/305">#305</a>)</p>
</li>
</ul>
</div>
<div class="section" id="section-3">
<h2><a class="toc-backref" href="#toc-entry-5">16.0.1.0.1 (2023-12-02)</a></h2>
<p><strong>Bugfixes</strong></p>
<ul>
<li><p class="first">Avoid to generate an SQL update query when an image field is read.</p>
<p>Fix a bug in the initialization of the image field value object when the field
is read. Before this fix, every time the value object was initialized with
an attachment, an assignment of the alt text was done into the constructor.
This assignment triggered the mark of the field as modified and an SQL update
query was generated at the end of the request. The alt text in the constructor
of the FSImageValue class must only be used when the class is initialized without
an attachment. We now check if an attachment and an alt text are provided at
the same time and throw an exception if this is the case. (<a class="reference external" href="https://github.com/OCA/storage/issues/307">#307</a>)</p>
</li>
</ul>
</div>
</div>
<div class="section" id="bug-tracker">
<h1><a class="toc-backref" href="#toc-entry-6">Bug Tracker</a></h1>
<p>Bugs are tracked on <a class="reference external" href="https://github.com/OCA/storage/issues">GitHub Issues</a>.
In case of trouble, please check there if your issue has already been reported.
If you spotted it first, help us to smash it by providing a detailed and welcomed
<a class="reference external" href="https://github.com/OCA/storage/issues/new?body=module:%20fs_image%0Aversion:%2016.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**">feedback</a>.</p>
<p>Do not contact contributors directly about support or help with technical issues.</p>
</div>
<div class="section" id="credits">
<h1><a class="toc-backref" href="#toc-entry-7">Credits</a></h1>
<div class="section" id="authors">
<h2><a class="toc-backref" href="#toc-entry-8">Authors</a></h2>
<ul class="simple">
<li>ACSONE SA/NV</li>
</ul>
</div>
<div class="section" id="contributors">
<h2><a class="toc-backref" href="#toc-entry-9">Contributors</a></h2>
<ul class="simple">
<li>Laurent Mignon &lt;<a class="reference external" href="mailto:laurent.mignon&#64;acsone.eu">laurent.mignon&#64;acsone.eu</a>&gt;</li>
</ul>
</div>
<div class="section" id="maintainers">
<h2><a class="toc-backref" href="#toc-entry-10">Maintainers</a></h2>
<p>This module is maintained by the OCA.</p>
<a class="reference external image-reference" href="https://odoo-community.org">
<img alt="Odoo Community Association" src="https://odoo-community.org/logo.png" />
</a>
<p>OCA, or the Odoo Community Association, is a nonprofit organization whose
mission is to support the collaborative development of Odoo features and
promote its widespread use.</p>
<p>Current <a class="reference external" href="https://odoo-community.org/page/maintainer-role">maintainer</a>:</p>
<p><a class="reference external image-reference" href="https://github.com/lmignon"><img alt="lmignon" src="https://github.com/lmignon.png?size=40px" /></a></p>
<p>This module is part of the <a class="reference external" href="https://github.com/OCA/storage/tree/16.0/fs_image">OCA/storage</a> project on GitHub.</p>
<p>You are welcome to contribute. To learn how please visit <a class="reference external" href="https://odoo-community.org/page/Contribute">https://odoo-community.org/page/Contribute</a>.</p>
</div>
</div>
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