Tom Byers e06c1f5daa Fix bug with extend_params function
The OrganisationAgreementSignedForm class has a
bug causing it to render different HTML when the
page loads to when you subsequently refresh it.

This commit proposes a change to the extend_params
function to fix it.

extend_params, is used by the
OrganisationAgreementSignedForm, as well as all
the other WTForms field classes we added to wrap
GOVUK Frontend components. Fixing it should
therefore fix any similar bugs with them.

All of these fields send a dict of configuration
data to the GOVUK Frontend component when they
call it, at render time. This dict is 'JSON-like',
meaning it's values can be all the primitives as
well as lists and dicts. This also means it can go
quite deep.

Extending the default configuration

The classes have a default dict of this data kept
privately in the params variable. They let you
change it by passing in an argument called
param_extensions on instantiation, after that,
through an attribute of the same name and at
render time as the same argument (in templates).

The extend_params function

The param_extensions dict is used as a collection
of changes to make to the default params dict.
The changes are applied by the extend_params
function. Its code deletes part of the
param_extensions, a side effect that didn't seem a
problem because it isn't used after the function
has run.

The bug

The bug was only with the part of the HTML that
got its data from the part of the param_extensions
dict that was deleted by extend_params. The class
with the bug set param_extensions when the field
is instantiated, as part of its parent form
definition.

My guess is that param_extensions was stored in
memory, as part of the form class, and reused
when the page refreshed. At that point,
extend_params had deleted part of its data,
causing the bug.
2021-01-15 09:59:32 +00:00
2021-01-15 09:59:32 +00:00
2019-04-12 15:36:57 +01:00
2019-11-29 15:25:37 +00:00
2021-01-08 17:02:39 +00:00
2019-11-29 15:25:37 +00:00
2021-01-08 17:02:39 +00:00
2020-12-29 18:40:16 +00:00
2020-03-06 13:25:53 +00:00
2020-05-22 09:48:04 +01:00
2021-01-08 17:02:39 +00:00
2020-01-21 15:10:43 +00:00
2019-11-29 15:25:37 +00:00

notifications-admin

GOV.UK Notify admin application - https://www.notifications.service.gov.uk/

Features of this application

  • Register and manage users
  • Create and manage services
  • Send batch emails and SMS by uploading a CSV
  • Show history of notifications

First-time setup

1. Install Homebrew

Install Homebrew, a package manager for OSX:

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"

2. Make sure you're using correct language versions

Languages needed

  • Python 3.6.x
  • Node 10.15.3 or greater
  • npm 6.4.1 or greater

Need to install node? Run:

brew install node

2.1. pyenv For Python version management

pyenv is a program to manage and swap between different versions of Python. To install:

brew install pyenv

And then follow the further installation instructions in https://github.com/pyenv/pyenv#installation to configure it.

2.2. n For Node version management

NPM is Node's package management tool. n is a tool for managing different versions of Node. The following installs n and uses the long term support (LTS) version of Node.

npm install -g n
n lts

3. Install NPM dependencies

npm install
npm rebuild node-sass

4. Install and use virtualenvwrapper (optional)

We suggest using a virtualenv to separate the python dependencies for this project from python dependencies for other projects.

Install virtualenvwrapper:

pip install virtualenvwrapper

Then follow the virtualenvwrapper installation instructions docs to configure virtualenvwrapper for your terminal.

Set up your virtualenv:

mkvirtualenv notifications-admin

If you need to specify a certain version of python you can do this using -p, for example:

mkvirtualenv -p ~/.pyenv/versions/3.6.3/bin/python notifications-admin

Activate your virtualenv:

workon notifications-admin

5. Install Python dependencies

Install dependencies and build the frontend assets:

./scripts/bootstrap.sh

Note: You may need versions of both Python 3 and Python 2 accessible to build the python dependencies. pyenv is great for that, and making both Python versions accessible can be done like so:

pyenv global 3.6.3 2.7.15

6. Create a local environment.sh file

In the root directory of the application, run:

echo "
export NOTIFY_ENVIRONMENT='development'
export FLASK_APP=application.py
export FLASK_DEBUG=1
export WERKZEUG_DEBUG_PIN=off
"> environment.sh

7. AWS credentials

Your aws credentials should be stored in a folder located at ~/.aws. Follow Amazon's instructions for storing them correctly

8. Running the application

In the root directory of the application, run:

./scripts/run_app.sh

Then visit localhost:6012

Updating application dependencies

requirements.txt file is generated from the requirements-app.txt in order to pin versions of all nested dependencies. If requirements-app.txt has been changed (or we want to update the unpinned nested dependencies) requirements.txt should be regenerated with

make freeze-requirements

requirements.txt should be committed alongside requirements-app.txt changes.

Automatically rebuild the frontend assets

If you want the front end assets to re-compile on changes, leave this running in a separate terminal from the app

    npm run watch

Working with static assets

When running locally static assets are served by Flask at http://localhost:6012/static/…

When running on preview, staging and production theres a bit more to it:

notify-static-after

Description
The UI of Notify.gov
Readme 560 MiB
Languages
Python 69.3%
HTML 16.6%
JavaScript 11.1%
SCSS 0.9%
Nunjucks 0.7%
Other 1.4%