By default, werkzeug doesn't preserve the order
of the parameters sent to routes.
As stated in the werkzeug documentation:
```
parameter_storage_class
the class to use for args and form.
The default is an ImmutableMultiDict which supports multiple values per key.
alternatively it makes sense to use an ImmutableOrderedMultiDict
which preserves order or a ImmutableDict which is the fastest
but only remembers the last key.
It is also possible to use mutable structures, but this is not recommended.
New in version 0.6.
```
For some of our use cases, it makes sense to keep the order
of the route parameters.
e.g. In the website builder, when building a form
with a bunch of inputs values that will be concatened
in a lead note, the user expects the answer to be displayed
in the same order than the form inputs.
This change is seen as a bit risky as it could lead to
performances issues in the http routes processing, and this
is the reason we do not merge this in stable 9.0 at the moment.
If needed, it could be back ported later to 9.0, after
several weeks/months of testing in this release(saas-10 atm).
opw-677508
If the feedback of a form is too slow, people might be tempted to
click a second time, trigerring a second request. If, after that,
the result has not been received yet, the user might be tempted
to click a lot of time because he is angry at such slowness. This
behavior would trigger a record creation each time the user clicked
the submit button. This fix disables the button once it has been
clicked once, and re-enable it if the record could not be created,
which means that there was an error in the input and the user needs
to change the values and try again.
The button has been changed to a span to avoid the default browser
behavior to post the form when no function is bound on the send button.
If the feedback of a form is too slow, people might be tempted to
click a second time, trigerring a second request. If, after that,
the result has not been received yet, the user might be tempted
to click a lot of time because he is angry at such slowness. This
behavior would trigger a record creation each time the user clicked
the submit button. This fix disables the button once it has been
clicked once, and re-enable it if the record could not be created,
which means that there was an error in the input and the user needs
to change the values and try again.
The button has been changed to a span to avoid the default browser
behavior to post the form when no function is bound on the send button.
Adding date & datetime inputs in the website
form builder couldn't work, because
the posted values for these input
types were not treated at all,
and they were not in the format
the date/datetime were stored in database.
opw-672674
Christophe Simonis