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[WiP] Textfield to support RegExp validation #459

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merged 6 commits into from
Nov 29, 2022
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drehelis
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@drehelis drehelis commented Jun 14, 2021

I was in a need for special form of text field validation done on the frontend. This PR tries to solve this by adding regular-expression validation capabilities.

Couple of caveats -

  • Escaping characters such as \ when editing JSON config manually is required.
  • Can't get the Admin UI properly generate regex object. Hence, WiP :-)
  • Add Tests

Parameter config should look like:

{
  "name": "RegExp textfield",
  "max_length": "12",
  "regex": {
    "pattern": "^([a-z0-9_\\.-]+)@([\\da-z\\.-]+)\\.([a-z\\.]{2,6})$",
    "description": "Email address only"
  }
}

Small demo:

Screen.Recording.2021-06-14.at.15.48.54.mov

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Thanks, looks good to me, just a couple of improvement suggestions

@@ -279,6 +282,8 @@ def validate_value(self, value, *, ignore_required=False):
if is_empty(value):
if self.required and not ignore_required:
return 'is not specified'
if self.regex:
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I think this is redundant

if self.regex is not None:
regex_pattern = self.regex.get('pattern', None)
if (not is_empty(regex_pattern)):
regex_matched = bool(re.match(regex_pattern, value))
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I think bool is not needed here

@@ -73,6 +73,12 @@
title="Excluded files"
@error="handleError('Excluded files', $event)"/>
</div>
<div v-if="selectedType === 'text' || selectedType === undefined" class="row">
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May be you could combine it with the max length row?

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You mean, move both regex_pattern & regex_description textfields under the same div with max_length?

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yep

let regexPattern = new RegExp(regex.pattern);
let matchFound = regexPattern.test(value);
if (!matchFound) {
return regex.description
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Since description can be empty, please provide a fallback value

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When/if description is left empty, regex.description is the regex pattern itself. The idea is to provide the end-user with a meaningful error message when it comes to regex validation but if, for some reason, you don't, shouldn't print the regex pattern is enough of a fallback value?

return 'does not match regex pattern: ' + self.regex.get('description', regex_pattern)

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The python code you are referencing is a backend validation, a user should never see it. It's just an additional safety net.

if (type === 'text') {
if (regex) {
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How do I get started with tests? How do I run them locally on my dev env?
It would be nice to document this on the Wiki somewhere :-)

@@ -289,6 +294,13 @@ def validate_value(self, value, *, ignore_required=False):
return None

if self.type == 'text':
if self.regex is not None:
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Could you add a couple of tests?

@@ -74,6 +76,7 @@ def _reload(self):
self.min = config.get('min')
self.max = config.get('max')
self.max_length = config.get('max_length')
self.regex = config.get('regex')
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Please also update the method "get_sorted_config" below

@@ -235,6 +249,8 @@ export default {
this.min = config['min'];
this.max = config['max'];
this.max_length = config['max_length'];
this.regex_pattern = get(config, 'regex.pattern', '');
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Please use camelCase for naming in javascript

@bugy bugy mentioned this pull request Jul 5, 2021
@ashishp0911
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Hello ,
This doesn't seem to work. I tried the exact pattern mentioned in this thread , but there doesn't seem to be any validation on the Input Field or am I missing something

The parameter section below : -

"parameters": [
{
"name": "Input",
"required": true,
"param": "-i",
"env_var": "INP",
"type": "text",
"regex": {
"pattern": "^([a-z0-9_\.-]+)@([\da-z\.-]+)\.([a-z\.]{2,6})$",
"description": "Input Validation"
}
}

Regards,
Ashish .A. Poojary

@bugy
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bugy commented Nov 27, 2022

Hi @ashishp0911, how did you test it? This PR was not merged, i.e. not available in script server builds.

@ashishp0911
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@bugy My Bad , I spoke too early. I mistook the closed case #466 and thought this feature has been implemented in the latest build.
Any updates on the rollout of this feature ?

# Conflicts:
#	src/model/parameter_config.py
#	src/tests/test_utils.py
#	web-src/src/admin/components/scripts-config/ParameterConfigForm.vue
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bugy commented Nov 27, 2022

I have to apologize to @drehelis for missing that one. To be honest I was waiting for "review request", but I had to check this ticket on my own. Totally my fault for not tracking the project properly.

I made some minor adjustments, and will wait for build before merging. Probably tomorrow.

@bugy bugy merged commit 081b20f into bugy:master Nov 29, 2022
@bugy bugy added this to the 1.18.0 milestone Nov 29, 2022
@drehelis drehelis deleted the regex_text branch November 29, 2022 19:30
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3 participants