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implement basic error handling and validation for forms

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This commit is contained in:
Jakob Ketterl
2021-03-24 22:46:51 +01:00
parent 4cbce9c840
commit 6ddced4689
9 changed files with 206 additions and 99 deletions
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116
owrx/form/__init__.py
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@@ -1,16 +1,18 @@
from abc import ABC, abstractmethod
from abc import ABC
from owrx.modes import Modes
from owrx.config import Config
from owrx.form.validator import Validator
from owrx.form.converter import Converter, NullConverter, IntConverter, FloatConverter, EnumConverter
from enum import Enum
class Input(ABC):
def __init__(self, id, label, infotext=None, converter: Converter = None, disabled=False, removable=False):
def __init__(self, id, label, infotext=None, converter: Converter = None, validator: Validator = None, disabled=False, removable=False):
self.id = id
self.label = label
self.infotext = infotext
self.converter = self.defaultConverter() if converter is None else converter
self.validator = validator
self.disabled = disabled
self.removable = removable
@@ -24,7 +26,6 @@ class Input(ABC):
return NullConverter()
def bootstrap_decorate(self, input):
infotext = "<small>{text}</small>".format(text=self.infotext) if self.infotext else ""
return """
<div class="form-group row" data-field="{id}">
<label class="col-form-label col-form-label-sm col-3" for="{id}">{label}</label>
@@ -40,19 +41,22 @@ class Input(ABC):
id=self.id,
label=self.label,
input=input,
infotext=infotext,
infotext="<small>{text}</small>".format(text=self.infotext) if self.infotext else "",
removable="removable" if self.removable else "",
removebutton='<button type="button" class="btn btn-sm btn-danger option-remove-button">Remove</button>'
if self.removable
else "",
)
def input_classes(self):
return " ".join(["form-control", "form-control-sm"])
def input_classes(self, error):
classes = ["form-control", "form-control-sm"]
if error:
classes.append("is-invalid")
return " ".join(classes)
def input_properties(self, value):
def input_properties(self, value, error):
props = {
"class": self.input_classes(),
"class": self.input_classes(error),
"id": self.id,
"name": self.id,
"placeholder": self.label,
@@ -62,26 +66,35 @@ class Input(ABC):
props["disabled"] = "disabled"
return props
def render_input_properties(self, value):
return " ".join('{}="{}"'.format(prop, value) for prop, value in self.input_properties(value).items())
def render_input_properties(self, value, error):
return " ".join('{}="{}"'.format(prop, value) for prop, value in self.input_properties(value, error).items())
def render_input(self, value):
return "<input {properties} />".format(properties=self.render_input_properties(value))
def render_errors(self, errors):
return "".join("""<div class="invalid-feedback">{msg}</div>""".format(msg=e) for e in errors)
def render(self, config):
def render_input(self, value, errors):
return "<input {properties} />{errors}".format(
properties=self.render_input_properties(value, errors), errors=self.render_errors(errors)
)
def render(self, config, errors):
value = config[self.id] if self.id in config else None
return self.bootstrap_decorate(self.render_input(self.converter.convert_to_form(value)))
error = errors[self.id] if self.id in errors else []
return self.bootstrap_decorate(self.render_input(self.converter.convert_to_form(value), error))
def parse(self, data):
return {self.id: self.converter.convert_from_form(data[self.id][0])} if self.id in data else {}
value = self.converter.convert_from_form(data[self.id][0])
if self.validator is not None:
self.validator.validate(self.id, value)
return {self.id: value} if self.id in data else {}
def getLabel(self):
return self.label
class TextInput(Input):
def input_properties(self, value):
props = super().input_properties(value)
def input_properties(self, value, errors):
props = super().input_properties(value, errors)
props["type"] = "text"
return props
@@ -95,14 +108,14 @@ class NumberInput(Input):
def defaultConverter(self):
return IntConverter()
def input_properties(self, value):
props = super().input_properties(value)
def input_properties(self, value, errors):
props = super().input_properties(value, errors)
props["type"] = "number"
if self.step:
props["step"] = self.step
return props
def render_input(self, value):
def render_input(self, value, errors):
if self.append:
append = """
<div class="input-group-append">
@@ -120,7 +133,7 @@ class NumberInput(Input):
{append}
</div>
""".format(
input=super().render_input(value),
input=super().render_input(value, errors),
append=append,
)
@@ -135,7 +148,8 @@ class FloatInput(NumberInput):
class LocationInput(Input):
def render_input(self, value):
def render_input(self, value, errors):
# TODO display errors
return """
<div class="row">
{inputs}
@@ -145,11 +159,11 @@ class LocationInput(Input):
</div>
""".format(
id=self.id,
inputs="".join(self.render_sub_input(value, id) for id in ["lat", "lon"]),
inputs="".join(self.render_sub_input(value, id, errors) for id in ["lat", "lon"]),
key=Config.get()["google_maps_api_key"],
)
def render_sub_input(self, value, id):
def render_sub_input(self, value, id, errors):
return """
<div class="col">
<input type="number" class="{classes}" id="{id}" name="{id}" placeholder="{label}" value="{value}"
@@ -158,7 +172,7 @@ class LocationInput(Input):
""".format(
id="{0}-{1}".format(self.id, id),
label=self.label,
classes=self.input_classes(),
classes=self.input_classes(errors),
value=value[id],
disabled="disabled" if self.disabled else "",
)
@@ -168,11 +182,16 @@ class LocationInput(Input):
class TextAreaInput(Input):
def render_input(self, value):
def render_input(self, value, errors):
return """
<textarea class="{classes}" id="{id}" name="{id}" style="height:200px;" {disabled}>{value}</textarea>
{errors}
""".format(
id=self.id, classes=self.input_classes(), value=value, disabled="disabled" if self.disabled else ""
id=self.id,
classes=self.input_classes(errors),
value=value,
disabled="disabled" if self.disabled else "",
errors=self.render_errors(errors),
)
@@ -181,7 +200,7 @@ class CheckboxInput(Input):
super().__init__(id, "", infotext=infotext, converter=converter)
self.checkboxText = checkboxText
def render_input(self, value):
def render_input(self, value, errors):
return """
<div class="{classes}">
<input type="hidden" name="{id}" value="0" {disabled}>
@@ -189,17 +208,22 @@ class CheckboxInput(Input):
<label class="form-check-label" for="{id}">
{checkboxText}
</label>
{errors}
</div>
""".format(
id=self.id,
classes=self.input_classes(),
classes=self.input_classes(errors),
checked="checked" if value else "",
disabled="disabled" if self.disabled else "",
checkboxText=self.checkboxText,
errors=self.render_errors(errors)
)
def input_classes(self):
return " ".join(["form-check", "form-control-sm"])
def input_classes(self, error):
classes = ["form-check", "form-control-sm"]
if error:
classes.append("is-invalid")
return " ".join(classes)
def parse(self, data):
if self.id in data:
@@ -222,13 +246,14 @@ class MultiCheckboxInput(Input):
super().__init__(id, label, infotext=infotext)
self.options = options
def render_input(self, value):
return "".join(self.render_checkbox(o, value) for o in self.options)
def render_input(self, value, errors):
# TODO display errors
return "".join(self.render_checkbox(o, value, errors) for o in self.options)
def checkbox_id(self, option):
return "{0}-{1}".format(self.id, option.value)
def render_checkbox(self, option, value):
def render_checkbox(self, option, value, errors):
return """
<div class="{classes}">
<input class="form-check-input" type="checkbox" id="{id}" name="{id}" {checked} {disabled}>
@@ -238,7 +263,7 @@ class MultiCheckboxInput(Input):
</div>
""".format(
id=self.checkbox_id(option),
classes=self.input_classes(),
classes=self.input_classes(errors),
checked="checked" if option.value in value else "",
checkboxText=option.text,
disabled="disabled" if self.disabled else "",
@@ -251,8 +276,11 @@ class MultiCheckboxInput(Input):
return {self.id: [o.value for o in self.options if in_response(o)]}
def input_classes(self):
return " ".join(["form-check", "form-control-sm"])
def input_classes(self, error):
classes = ["form-check", "form-control-sm"]
if error:
classes.append("is-invalid")
return " ".join(classes)
class ServicesCheckboxInput(MultiCheckboxInput):
@@ -286,14 +314,16 @@ class DropdownInput(Input):
self.options = options
super().__init__(id, label, infotext=infotext, converter=converter)
def render_input(self, value):
def render_input(self, value, errors):
return """
<select class="{classes}" id="{id}" name="{id}" {disabled}>{options}</select>
{errors}
""".format(
classes=self.input_classes(),
classes=self.input_classes(errors),
id=self.id,
options=self.render_options(value),
disabled="disabled" if self.disabled else "",
errors=self.render_errors(errors),
)
def render_options(self, value):
@@ -329,13 +359,13 @@ class ExponentialInput(Input):
def defaultConverter(self):
return IntConverter()
def input_properties(self, value):
props = super().input_properties(value)
def input_properties(self, value, errors):
props = super().input_properties(value, errors)
props["type"] = "number"
props["step"] = "any"
return props
def render_input(self, value):
def render_input(self, value, errors):
append = """
<div class="input-group-append">
<select class="input-group-text exponent" name="{id}-exponent" {disabled}>
@@ -358,7 +388,7 @@ class ExponentialInput(Input):
{append}
</div>
""".format(
input=super().render_input(value),
input=super().render_input(value, errors),
append=append,
)