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html – Multiple queries in one view Django

Hi I need some help with a little problem, I am new to Django and have not mastered it properly yet. I am trying to render a view in pdf, to put you in situation I am going to explain what I need. It is an application to manage properties. Obviously each client can have multiple properties. The problem is that when listing the properties of a client it only shows me one record.

Here my view:

def pdf_generation(request, *args, **kwargs):
pk = kwargs.get('pk')
client = Client.objects.get(pk=pk)
farm = Farm.objects.filter(pk=pk)
context = {
    'client': client,
    'farm': farm,
html_string = render_to_string('client_pdf.html', context)
html = HTML(string=html_string, base_url=request.build_absolute_uri())
pdf = html.write_pdf(
    stylesheets=(CSS(settings.STATIC_ROOT + '/css/pdf.css')))
response = HttpResponse(pdf, content_type='application/pdf')
response('Content-Disposition') = 'inline; filename="export.pdf"'
return response

Here my url

    path('export/<int:pk>', views.pdf_generation, name='client_export_id'),

Here my html code for client

                <th scope="row">{{ }}</th>
                <th scope="row">{{ }}</th>
                <th scope="row">{{ client.nif }}</th>
                <th scope="row">{{ client.technical }}</th>
                <th scope="row">{{ }}</th>
                <th scope="row">{{ client.record|date:"j F, Y" }}</th>

And finally my html code for farm

            {% for obj in farm %}
                <th scope="row">{{ }}</th>
                <th scope="row">{{ obj.manager }}</th>
                <th scope="row">{{ }}</th>
                <th scope="row">{{ }}</th>
                <th scope="row">{{ }}</th>
                <th scope="row">{{ obj.production }}</th>
            {% endfor %}

Add Filter in REST Export display in view in D8

I have a view “Nearest Dealers” that lists all the near dealers. There are two displays – Page & REST Export. I’ve added a filter(exposed to visitors) that lets customer search dealers based on current location and distance(eg: 10km radius). Filter works perfectly, but I want to show the same filtered results in REST Export display for the same view. Is it possible to do so because I have no clue how to make this work. Or is there any way to add the same filter for the REST Export display ?

magento2 – Magento 2: “Back” Link from View Order to Custom Grid

You can do this by plugin.

Create this class:

namespace NameSpaceModuleNamePluginSalesBlockAdminhtmlOrder;

use MagentoSalesBlockAdminhtmlOrderView as OrderView;
use MagentoFrameworkUrlInterface;
use MagentoFrameworkAuthorizationInterface;

class View
    /** @var MagentoFrameworkUrlInterface */
    protected $_urlBuilder;

    /** @var MagentoFrameworkAuthorizationInterface */
    protected $_authorization;

    public function __construct(
        UrlInterface $url,
        AuthorizationInterface $authorization
        $this->_urlBuilder = $url;
        $this->_authorization = $authorization;

    public function beforeSetLayout(OrderView $view)
        $url = $this->_urlBuilder->getUrl('your_route', ('order_id' => $view->getOrderId()));
        $view->updateButton('back', 'onclick', 'setLocation('' . $url . '')');

And in your etc/adminhtml/di.xml

<?xml version="1.0"?>
<config xmlns:xsi="" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <type name="MagentoSalesBlockAdminhtmlOrderView">
        <plugin name="your_module_adminhtml_order_view_add_button" type="NameSpaceModuleNamePluginSalesBlockAdminhtmlOrderView" sortOrder="10" />

This should work.


You could do this:

public function beforeSetLayout(OrderView $view) {
    $param = $view->getRequest()->getParam('redirect_back'); //you can even pass your route and use it in codntion then build the back url accordingly.
    if ( $param == '1') {
        $url = $this->_urlBuilder->getUrl('your_route', ('order_id' => $view->getOrderId()));
        $view->updateButton('back', 'onclick', 'setLocation('' . $url . '')');

Now, in your custom grid build URL with the redirect_back/1. So your full grid URL should be like this:

I need your view on functions

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stereoscopy – How can I view stereoscopic image pairs without a stereoscope?

One of the simplest methods of emulating stereo viewing also requires no special software to view or create: animated GIF. Most full-featured image editors can create animated GIF files from a set of images; some will automate the process more, but it’s simple enough to do manually without undue effort.

This works both with conventional stereo pairs and with multi-image like the Nimslo camera (intended for lenticular stereo prints). The images are pasted into an animated GIF file in a manner that causes them to display for a short time (.2 to .5 seconds per frame works well) in an order that seems to “tilt” the image right to left and back again. The GIF is then set to loop continuously, and any software that can display GIF (which is virtually everything that can view images) will show the image in a way your brain will interpret as 3D.

This works on phones, tablets, desktop or laptop computers, and even smart TVs — anything that can display a GIF.

Alternatively, for printed images, you may be able to train yourself to “free view”. This is a method of viewing stereo pairs without a viewer. It requires fooling your visual system into decoupling focus from convergence, to let you focus close while letting your eyes become parallel, as if viewing a distant object.

There are a number of tricks for this — the simplest is to hold the page with the image with something distant behind it. Look at the distant object, and move the page until the two images overlap (or ideally, fully fuse), then switch your gaze to the fused/overlapped images and let them come into focus without losing fusion. This is actually what a stereo viewer is doing, but the use of lenses makes it much easier.

coding standards – Does default settings should be considered as business rules from the view point of “Clean Architecture”?

The examples of default settings:

  • Default port for server applications
  • Default resources directory for Java Applications
  • Default Webpack config file (“webpack.config.js”)

My particular case

I have the utility for web application projects building, based on gulp and webpack.

enter image description here

When user did not specified some settings in config file of his project (similar to pom.xml, webpack.config.js, etc.) DefaultSettins will be substituted. The example of default settings for markup preprocessing:

  indentationSpacesCountInOutputCode: 2,
  mustExecuteHTML5_Validation: true,
  mustExecuteCodeQualityInspection: true,
  mustExecuteAccessibilityInspection: true

Maybe I can call it “the business rules”, but it including, for example, the paths which must not be watched for browser live reloading providing for specific framework:

  laravelBasedProjectRelativePathsWhichWillBeWatched: {
    includedDirectoriesRelativePaths: (

In Clean Architecture, the business rules must not know anything about frameworks.
And also, I need put somewhere the default settings for specific utilities (e. g. Webpack).

The InternalSettings (I call them so because user can not override it) are currently restrictions of my library, for example, supported file names extensions:

export default {
  supportedSourceFileNameExtensionsWithoutDots: ( "mjs", "js", "ts" ),
  supportedOutputFileNameExtensionsWithoutDots: ( "js" )

I am not sure I can call it “business rules”.

If default and internal settings are no the business rules what’s they are?