QWeb Reports

Reports are written in HTML/QWeb, like website views in Flectra. You can use the usual QWeb control flow tools. The PDF rendering itself is performed by wkhtmltopdf.

Reports are declared using a report action, and a Report template for the action to use.

If useful or necessary, it is possible to specify a Paper Format for the report report.

Report template

Report templates will always provide the following variables:

time

a reference to time from the Python standard library

user

res.user record for the user printing the report

res_company

record for the current user’s company

website

the current website object, if any (this item can be present but None)

web_base_url

the base url for the webserver

context_timestamp

a function taking datetime.datetime in UTC1 and converting it to the timezone of the user printing the report

Minimal viable template

A minimal template would look like:

<template id="report_invoice">
    <t t-call="web.html_container">
        <t t-foreach="docs" t-as="o">
            <t t-call="web.external_layout">
                <div class="page">
                    <h2>Report title</h2>
                    <p>This object's name is <span t-field="o.name"/></p>
                </div>
            </t>
        </t>
    </t>
</template>

Calling external_layout will add the default header and footer on your report. The PDF body will be the content inside the <div class="page">. The template’s id must be the name specified in the report declaration; for example account.report_invoice for the above report. Since this is a QWeb template, you can access all the fields of the docs objects received by the template.

By default, the rendering context will also expose the following items:

docs

records for the current report

doc_ids

list of ids for the docs records

doc_model

model for the docs records

If you wish to access other records/models in the template, you will need a custom report, however in that case you will have to provide the items above if you need them.

Translatable Templates

If you wish to translate reports (to the language of a partner, for example), you need to define two templates:

• The main report template

• The translatable document

You can then call the translatable document from your main template with the attribute t-lang set to a language code (for example fr or en_US) or to a record field. You will also need to re-browse the related records with the proper context if you use fields that are translatable (like country names, sales conditions, etc.)

Warning

If your report template does not use translatable record fields, re-browsing the record in another language is not necessary and will impact performances.

For example, let’s look at the Sale Order report from the Sale module:

<!-- Main template -->
<template id="report_saleorder">
    <t t-call="web.html_container">
        <t t-foreach="docs" t-as="doc">
            <t t-call="sale.report_saleorder_document" t-lang="doc.partner_id.lang"/>
        </t>
    </t>
</template>

<!-- Translatable template -->
<template id="report_saleorder_document">
    <!-- Re-browse of the record with the partner lang -->
    <t t-set="doc" t-value="doc.with_context(lang=doc.partner_id.lang)" />
    <t t-call="web.external_layout">
        <div class="page">
            <div class="oe_structure"/>
            <div class="row">
                <div class="col-6">
                    <strong t-if="doc.partner_shipping_id == doc.partner_invoice_id">Invoice and shipping address:</strong>
                    <strong t-if="doc.partner_shipping_id != doc.partner_invoice_id">Invoice address:</strong>
                    <div t-field="doc.partner_invoice_id" t-options="{&quot;no_marker&quot;: True}"/>
                <...>
            <div class="oe_structure"/>
        </div>
    </t>
</template>

The main template calls the translatable template with doc.partner_id.lang as a t-lang parameter, so it will be rendered in the language of the partner. This way, each Sale Order will be printed in the language of the corresponding customer. If you wish to translate only the body of the document, but keep the header and footer in a default language, you could call the report’s external layout this way:

<t t-call="web.external_layout" t-lang="en_US">

Tip

Please take note that this works only when calling external templates, you will not be able to translate part of a document by setting a t-lang attribute on an xml node other than t-call. If you wish to translate part of a template, you can create an external template with this partial template and call it from the main one with the t-lang attribute.

Barcodes

Barcodes are images returned by a controller and can easily be embedded in reports thanks to the QWeb syntax (e.g. see attributes):

<img t-att-src="'/report/barcode/QR/%s' % 'My text in qr code'"/>

More parameters can be passed as a query string

<img t-att-src="'/report/barcode/?
    type=%s&amp;value=%s&amp;width=%s&amp;height=%s'%('QR', 'text', 200, 200)"/>

Useful Remarks

• Twitter Bootstrap and FontAwesome classes can be used in your report template

• Local CSS can be put directly in the template

• Global CSS can be inserted in the main report layout by inheriting its template and inserting your CSS:

  <template id="report_saleorder_style" inherit_id="report.style">
    <xpath expr=".">
      <t>
        .example-css-class {
          background-color: red;
        }
      </t>
    </xpath>
  </template>
  

• If it appears that your PDF report is missing the styles, please check these instructions.

Paper Format

Paper formats are records of report.paperformat and can contain the following attributes:

name (mandatory)

only useful as a mnemonic/description of the report when looking for one in a list of some sort

description

a small description of your format

format

either a predefined format (A0 to A9, B0 to B10, Legal, Letter, Tabloid,…) or custom; A4 by default. You cannot use a non-custom format if you define the page dimensions.

dpi

output DPI; 90 by default

margin_top, margin_bottom, margin_left, margin_right

margin sizes in mm

page_height, page_width

page dimensions in mm

orientation

Landscape or Portrait

header_line

boolean to display a header line

header_spacing

header spacing in mm

Example:

<record id="paperformat_frenchcheck" model="report.paperformat">
    <field name="name">French Bank Check</field>
    <field name="default" eval="True"/>
    <field name="format">custom</field>
    <field name="page_height">80</field>
    <field name="page_width">175</field>
    <field name="orientation">Portrait</field>
    <field name="margin_top">3</field>
    <field name="margin_bottom">3</field>
    <field name="margin_left">3</field>
    <field name="margin_right">3</field>
    <field name="header_line" eval="False"/>
    <field name="header_spacing">3</field>
    <field name="dpi">80</field>
</record>

Custom Reports

By default, the reporting system builds rendering values based on the target model specified through the model field.

However, it will first look for a model named report.module.report_name and call that model’s _get_report_values(doc_ids, data) in order to prepare the rendering data for the template.

This can be used to include arbitrary items to use or display while rendering the template, such as data from additional models:

from flectra import api, models

class ParticularReport(models.AbstractModel):
    _name = 'report.module.report_name'

    def _get_report_values(self, docids, data=None):
        # get the report action back as we will need its data
        report = self.env['ir.actions.report']._get_report_from_name('module.report_name')
        # get the records selected for this rendering of the report
        obj = self.env[report.model].browse(docids)
        # return a custom rendering context
        return {
            'lines': docids.get_lines()
        }

Warning

When using a custom report, the “default” document-related items (doc_ids, doc_model and docs) will not be included. If you want them, you will need to include them yourself.

In the example above, the rendering context will contain the “global” values as well as the lines we put in there but nothing else.

Custom fonts

If you want to use custom fonts you will need to add your custom font and the related less/CSS to the web.reports_assets_common assets bundle. Adding your custom font(s) to web.assets_common or web.assets_backend will not make your font available in QWeb reports.

Example:

<template id="report_assets_common_custom_fonts" name="Custom QWeb fonts" inherit_id="web.report_assets_common">
    <xpath expr="." position="inside">
        <link href="/your_module/static/src/less/fonts.less" rel="stylesheet" type="text/less"/>
    </xpath>
</template>

You will need to define your @font-face within this less file, even if you’ve used in another assets bundle (other than web.reports_assets_common).

Example:

@font-face {
    font-family: 'MonixBold';
    src: local('MonixBold'), local('MonixBold'), url(/your_module/static/src/fonts/MonixBold-Regular.otf) format('opentype');
}

.h1-title-big {
    font-family: MonixBold;
    font-size: 60px;
    color: #3399cc;
}

After you’ve added the less into your assets bundle you can use the classes - in this example h1-title-big - in your custom QWeb report.

Reports are web pages

Reports are dynamically generated by the report module and can be accessed directly via URL:

For example, you can access a Sale Order report in html mode by going to http://<server-address>/report/html/sale.report_saleorder/38

Or you can access the pdf version at http://<server-address>/report/pdf/sale.report_saleorder/38

1

it does not matter what timezone the datetime object is actually in (including no timezone), its timezone will unconditionally be set to UTC before being adjusted to the user’s