Example #1
0
def patch_xform(request, domain, app_id, form_unique_id):
    patch = request.POST['patch']
    sha1_checksum = request.POST['sha1']
    case_references = _get_case_references(request.POST)

    app = get_app(domain, app_id)
    form = app.get_form(form_unique_id)

    conflict = _get_xform_conflict_response(form, sha1_checksum)
    if conflict is not None:
        return conflict

    xml = apply_patch(patch, form.source)

    try:
        xml = save_xform(app, form, xml.encode('utf-8'))
    except XFormException:
        return JsonResponse({'status': 'error'}, status=HttpResponseBadRequest.status_code)

    if "case_references" in request.POST or "references" in request.POST:
        form.case_references = case_references

    response_json = {
        'status': 'ok',
        'sha1': hashlib.sha1(xml).hexdigest()
    }
    app.save(response_json)
    notify_form_changed(domain, request.couch_user, app_id, form_unique_id)
    return JsonResponse(response_json)
Example #2
0
def patch_xform(request, domain, app_id, unique_form_id):
    patch = request.POST['patch']
    sha1_checksum = request.POST['sha1']
    case_references = _get_case_references(request.POST)

    app = get_app(domain, app_id)
    form = app.get_form(unique_form_id)

    current_xml = form.source
    if hashlib.sha1(current_xml.encode('utf-8')).hexdigest() != sha1_checksum:
        return json_response({'status': 'conflict', 'xform': current_xml})

    dmp = diff_match_patch()
    xform, _ = dmp.patch_apply(dmp.patch_fromText(patch), current_xml)
    save_xform(app, form, xform)
    if "case_references" in request.POST or "references" in request.POST:
        form.case_references = case_references

    response_json = {
        'status': 'ok',
        'sha1': hashlib.sha1(form.source.encode('utf-8')).hexdigest()
    }
    app.save(response_json)
    notify_form_changed(domain, request.couch_user, app_id, unique_form_id)
    return json_response(response_json)
Example #3
0
def patch_xform(request, domain, app_id, form_unique_id):
    patch = request.POST['patch']
    sha1_checksum = request.POST['sha1']
    case_references = _get_case_references(request.POST)

    app = get_app(domain, app_id)
    form = app.get_form(form_unique_id)

    conflict = _get_xform_conflict_response(form, sha1_checksum)
    if conflict is not None:
        return conflict

    current_xml = form.source
    dmp = diff_match_patch()
    xml, _ = dmp.patch_apply(dmp.patch_fromText(patch), current_xml)
    xml = save_xform(app, form, xml.encode('utf-8'))
    if "case_references" in request.POST or "references" in request.POST:
        form.case_references = case_references

    response_json = {
        'status': 'ok',
        'sha1': hashlib.sha1(xml).hexdigest()
    }
    app.save(response_json)
    notify_form_changed(domain, request.couch_user, app_id, form_unique_id)
    return json_response(response_json)
Example #4
0
def patch_xform(request, domain, app_id, unique_form_id):
    patch = request.POST['patch']
    sha1_checksum = request.POST['sha1']
    case_references = _get_case_references(request.POST)

    app = get_app(domain, app_id)
    form = app.get_form(unique_form_id)

    current_xml = form.source
    if hashlib.sha1(current_xml.encode('utf-8')).hexdigest() != sha1_checksum:
        return json_response({'status': 'conflict', 'xform': current_xml})

    dmp = diff_match_patch()
    xform, _ = dmp.patch_apply(dmp.patch_fromText(patch), current_xml)
    save_xform(app, form, xform)
    if "case_references" in request.POST or "references" in request.POST:
        form.case_references = case_references

    response_json = {
        'status': 'ok',
        'sha1': hashlib.sha1(form.source.encode('utf-8')).hexdigest()
    }
    app.save(response_json)
    notify_form_changed(domain, request.couch_user, app_id, unique_form_id)
    return json_response(response_json)
Example #5
0
def patch_xform(request, domain, app_id, form_unique_id):
    patch = request.POST['patch']
    sha1_checksum = request.POST['sha1']
    case_references = _get_case_references(request.POST)

    app = get_app(domain, app_id)
    form = app.get_form(form_unique_id)

    conflict = _get_xform_conflict_response(form, sha1_checksum)
    if conflict is not None:
        return conflict

    current_xml = form.source
    dmp = diff_match_patch()
    xml, _ = dmp.patch_apply(dmp.patch_fromText(patch), current_xml)
    xml = save_xform(app, form, xml.encode('utf-8'))
    if "case_references" in request.POST or "references" in request.POST:
        form.case_references = case_references

    response_json = {
        'status': 'ok',
        'sha1': hashlib.sha1(xml).hexdigest()
    }
    app.save(response_json)
    notify_form_changed(domain, request.couch_user, app_id, form_unique_id)
    return json_response(response_json)
Example #6
0
def _edit_form_attr(request, domain, app_id, form_unique_id, attr):
    """
    Called to edit any (supported) form attribute, given by attr

    """

    ajax = json.loads(request.POST.get('ajax', 'true'))
    resp = {}

    app = get_app(domain, app_id)
    try:
        form = app.get_form(form_unique_id)
    except FormNotFoundException as e:
        if ajax:
            return HttpResponseBadRequest(str(e))
        else:
            messages.error(request, _("There was an error saving, please try again!"))
            return back_to_main(request, domain, app_id=app_id)
    lang = request.COOKIES.get('lang', app.langs[0])

    def should_edit(attribute):
        return attribute in request.POST

    if 'sha1' in request.POST and (should_edit("xform") or "xform" in request.FILES):
        conflict = _get_xform_conflict_response(form, request.POST['sha1'])
        if conflict is not None:
            return conflict

    if should_edit("name"):
        name = request.POST['name']
        form.name[lang] = name
        if not form.form_type == "shadow_form":
            xform = form.wrapped_xform()
            if xform.exists():
                xform.set_name(name)
                save_xform(app, form, xform.render())
        resp['update'] = {'.variable-form_name': clean_trans(form.name, [lang])}

    if should_edit('comment'):
        form.comment = request.POST['comment']

    if should_edit("xform") or "xform" in request.FILES:
        try:
            # support FILES for upload and POST for ajax post from Vellum
            try:
                xform = request.FILES.get('xform').read()
            except Exception:
                xform = request.POST.get('xform')
            else:
                try:
                    xform = str(xform, encoding="utf-8")
                except Exception:
                    raise Exception("Error uploading form: Please make sure your form is encoded in UTF-8")

            if request.POST.get('cleanup', False):
                try:
                    # First, we strip all newlines and reformat the DOM.
                    px = parseString(xform.replace('\r\n', '')).toprettyxml()
                    # Then we remove excess newlines from the DOM output.
                    text_re = re.compile(r'>\n\s+([^<>\s].*?)\n\s+</', re.DOTALL)
                    prettyXml = text_re.sub(r'>\g<1></', px)
                    xform = prettyXml
                except Exception:
                    pass
            if xform:
                if isinstance(xform, str):
                    xform = xform.encode('utf-8')
                save_xform(app, form, xform)
            else:
                raise Exception("You didn't select a form to upload")
        except Exception as e:
            notify_exception(request, str(e))
            if ajax:
                return HttpResponseBadRequest(str(e))
            else:
                messages.error(request, str(e))
    if should_edit("references") or should_edit("case_references"):
        form.case_references = _get_case_references(request.POST)
    if should_edit("show_count"):
        show_count = request.POST['show_count']
        form.show_count = True if show_count == "True" else False
    if should_edit("put_in_root"):
        put_in_root = request.POST['put_in_root']
        form.put_in_root = True if put_in_root == "True" else False
    if should_edit('form_filter'):
        form.form_filter = request.POST['form_filter']
    if should_edit('post_form_workflow'):
        form.post_form_workflow = request.POST['post_form_workflow']
    if should_edit('auto_gps_capture'):
        form.auto_gps_capture = request.POST['auto_gps_capture'] == 'true'
    if should_edit('is_release_notes_form'):
        form.is_release_notes_form = request.POST['is_release_notes_form'] == 'true'
    if should_edit('enable_release_notes'):
        form.enable_release_notes = request.POST['enable_release_notes'] == 'true'
        if not form.is_release_notes_form and form.enable_release_notes:
            return json_response(
                {'message': _("You can't enable a form as release notes without allowing it as "
                    "a release notes form <TODO messaging>")},
                status_code=400
            )
    if (should_edit("form_links_xpath_expressions")
            and should_edit("form_links_form_ids")
            and toggles.FORM_LINK_WORKFLOW.enabled(domain)):
        form_links = zip(
            request.POST.getlist('form_links_xpath_expressions'),
            request.POST.getlist('form_links_form_ids'),
            [
                json.loads(datum_json) if datum_json else []
                for datum_json in request.POST.getlist('datums_json')
            ],
        )
        module_unique_ids = [m.unique_id for m in app.get_modules()]
        form.form_links = [FormLink(
            xpath=link[0],
            form_id=link[1] if link[1] not in module_unique_ids else None,
            module_unique_id=link[1] if link[1] in module_unique_ids else None,
            datums=[
                FormDatum(name=datum['name'], xpath=datum['xpath'])
                for datum in link[2]
            ]
        ) for link in form_links]

    if should_edit('post_form_workflow_fallback'):
        form.post_form_workflow_fallback = request.POST.get('post_form_workflow_fallback')

    if should_edit('custom_instances'):
        instances = json.loads(request.POST.get('custom_instances'))
        try:  # validate that custom instances can be added into the XML
            for instance in instances:
                etree.fromstring(
                    "<instance id='{}' src='{}' />".format(
                        instance.get('instanceId'),
                        instance.get('instancePath')
                    )
                )
        except etree.XMLSyntaxError as error:
            return json_response(
                {'message': _("There was an issue with your custom instances: {}").format(error)},
                status_code=400
            )

        form.custom_instances = [
            CustomInstance(
                instance_id=instance.get("instanceId"),
                instance_path=instance.get("instancePath"),
            ) for instance in instances
        ]

    if should_edit('custom_assertions'):
        assertions = json.loads(request.POST.get('custom_assertions'))
        try:  # validate that custom assertions can be added into the XML
            for assertion in assertions:
                etree.fromstring(
                    '<assertion test="{test}"><text><locale id="abc.def"/>{text}</text></assertion>'.format(
                        **assertion
                    )
                )
        except etree.XMLSyntaxError as error:
            return json_response(
                {'message': _("There was an issue with your custom assertions: {}").format(error)},
                status_code=400
            )

        existing_assertions = {assertion.test: assertion for assertion in form.custom_assertions}
        new_assertions = []
        for assertion in assertions:
            try:
                new_assertion = existing_assertions[assertion.get('test')]
                new_assertion.text[lang] = assertion.get('text')
            except KeyError:
                new_assertion = CustomAssertion(
                    test=assertion.get('test'),
                    text={lang: assertion.get('text')}
                )
            new_assertions.append(new_assertion)

        form.custom_assertions = new_assertions

    if should_edit("shadow_parent"):
        form.shadow_parent_form_id = request.POST['shadow_parent']

    if should_edit("custom_icon_form"):
        error_message = handle_custom_icon_edits(request, form, lang)
        if error_message:
            return json_response(
                {'message': error_message},
                status_code=400
            )

    if should_edit('session_endpoint_id'):
        raw_endpoint_id = request.POST['session_endpoint_id']
        try:
            set_session_endpoint(form, raw_endpoint_id, app)
        except InvalidSessionEndpoint as e:
            return json_response({'message': str(e)}, status_code=400)

    if should_edit('function_datum_endpoints'):
        if request.POST['function_datum_endpoints']:
            form.function_datum_endpoints = request.POST['function_datum_endpoints'].replace(" ", "").split(",")
        else:
            form.function_datum_endpoints = []

    handle_media_edits(request, form, should_edit, resp, lang)

    app.save(resp)
    notify_form_changed(domain, request.couch_user, app_id, form_unique_id)
    if ajax:
        return HttpResponse(json.dumps(resp))
    else:
        return back_to_main(request, domain, app_id=app_id, form_unique_id=form_unique_id)
Example #7
0
            return json_response(
                {'message': _("There was an issue with your custom instances: {}").format(error.message)},
                status_code=400
            )

        form.custom_instances = [
            CustomInstance(
                instance_id=instance.get("instanceId"),
                instance_path=instance.get("instancePath"),
            ) for instance in instances
        ]

    handle_media_edits(request, form, should_edit, resp, lang)

    app.save(resp)
    notify_form_changed(domain, request.couch_user, app_id, unique_form_id)
    if ajax:
        return HttpResponse(json.dumps(resp))
    else:
        return back_to_main(request, domain, app_id=app_id, unique_form_id=unique_form_id)


@no_conflict_require_POST
@require_can_edit_apps
def new_form(request, domain, app_id, module_id):
    "Adds a form to an app (under a module)"
    app = get_app(domain, app_id)
    lang = request.COOKIES.get('lang', app.langs[0])
    name = request.POST.get('name')
    form = app.new_form(module_id, name, lang)
Example #8
0
                for datum_json in request.POST.getlist('datums_json')
            ],
        )
        form.form_links = [FormLink(
            xpath=link[0],
            form_id=link[1],
            datums=[
                FormDatum(name=datum['name'], xpath=datum['xpath'])
                for datum in link[2]
            ]
        ) for link in form_links]

    handle_media_edits(request, form, should_edit, resp, lang)

    app.save(resp)
    notify_form_changed(domain, request.couch_user, app_id, unique_form_id)
    if ajax:
        return HttpResponse(json.dumps(resp))
    else:
        return back_to_main(request, domain, app_id=app_id, unique_form_id=unique_form_id)


@no_conflict_require_POST
@require_can_edit_apps
def new_form(request, domain, app_id, module_id):
    "Adds a form to an app (under a module)"
    app = get_app(domain, app_id)
    lang = request.COOKIES.get('lang', app.langs[0])
    name = request.POST.get('name')
    form = app.new_form(module_id, name, lang)
    app.save()
Example #9
0
def _edit_form_attr(request, domain, app_id, form_unique_id, attr):
    """
    Called to edit any (supported) form attribute, given by attr

    """

    ajax = json.loads(request.POST.get('ajax', 'true'))
    resp = {}

    app = get_app(domain, app_id)
    try:
        form = app.get_form(form_unique_id)
    except FormNotFoundException as e:
        if ajax:
            return HttpResponseBadRequest(six.text_type(e))
        else:
            messages.error(request, _("There was an error saving, please try again!"))
            return back_to_main(request, domain, app_id=app_id)
    lang = request.COOKIES.get('lang', app.langs[0])

    def should_edit(attribute):
        return attribute in request.POST

    if 'sha1' in request.POST and (should_edit("xform") or "xform" in request.FILES):
        conflict = _get_xform_conflict_response(form, request.POST['sha1'])
        if conflict is not None:
            return conflict

    if should_edit("name"):
        name = request.POST['name']
        form.name[lang] = name
        if not form.form_type == "shadow_form":
            xform = form.wrapped_xform()
            if xform.exists():
                xform.set_name(name)
                save_xform(app, form, xform.render())
        resp['update'] = {'.variable-form_name': trans(form.name, [lang], use_delim=False)}

    if should_edit('comment'):
        form.comment = request.POST['comment']

    if should_edit("name_enum"):
        name_enum = json.loads(request.POST.get("name_enum"))
        form.name_enum = [MappingItem(i) for i in name_enum]

    if should_edit("xform") or "xform" in request.FILES:
        try:
            # support FILES for upload and POST for ajax post from Vellum
            try:
                xform = request.FILES.get('xform').read()
            except Exception:
                xform = request.POST.get('xform')
            else:
                try:
                    xform = six.text_type(xform, encoding="utf-8")
                except Exception:
                    raise Exception("Error uploading form: Please make sure your form is encoded in UTF-8")
            if request.POST.get('cleanup', False):
                try:
                    # First, we strip all newlines and reformat the DOM.
                    px = parseString(xform.replace('\r\n', '')).toprettyxml()
                    # Then we remove excess newlines from the DOM output.
                    text_re = re.compile(r'>\n\s+([^<>\s].*?)\n\s+</', re.DOTALL)
                    prettyXml = text_re.sub(r'>\g<1></', px)
                    xform = prettyXml
                except Exception:
                    pass
            if xform:
                if isinstance(xform, six.text_type):
                    xform = xform.encode('utf-8')
                save_xform(app, form, xform)
            else:
                raise Exception("You didn't select a form to upload")
        except Exception as e:
            notify_exception(request, six.text_type(e))
            if ajax:
                return HttpResponseBadRequest(six.text_type(e))
            else:
                messages.error(request, six.text_type(e))
    if should_edit("references") or should_edit("case_references"):
        form.case_references = _get_case_references(request.POST)
    if should_edit("show_count"):
        show_count = request.POST['show_count']
        form.show_count = True if show_count == "True" else False
    if should_edit("put_in_root"):
        put_in_root = request.POST['put_in_root']
        form.put_in_root = True if put_in_root == "True" else False
    if should_edit('form_filter'):
        form.form_filter = request.POST['form_filter']
    if should_edit('post_form_workflow'):
        form.post_form_workflow = request.POST['post_form_workflow']
    if should_edit('auto_gps_capture'):
        form.auto_gps_capture = request.POST['auto_gps_capture'] == 'true'
    if should_edit('is_release_notes_form'):
        form.is_release_notes_form = request.POST['is_release_notes_form'] == 'true'
    if should_edit('enable_release_notes'):
        form.enable_release_notes = request.POST['enable_release_notes'] == 'true'
        if not form.is_release_notes_form and form.enable_release_notes:
            return json_response(
                {'message': _("You can't enable a form as release notes without allowing it as "
                    "a release notes form <TODO messaging>")},
                status_code=400
            )
    if should_edit('no_vellum'):
        form.no_vellum = request.POST['no_vellum'] == 'true'
    if (should_edit("form_links_xpath_expressions") and
            should_edit("form_links_form_ids") and
            toggles.FORM_LINK_WORKFLOW.enabled(domain)):
        form_links = zip(
            request.POST.getlist('form_links_xpath_expressions'),
            request.POST.getlist('form_links_form_ids'),
            [
                json.loads(datum_json) if datum_json else []
                for datum_json in request.POST.getlist('datums_json')
            ],
        )
        form.form_links = [FormLink(
            xpath=link[0],
            form_id=link[1],
            datums=[
                FormDatum(name=datum['name'], xpath=datum['xpath'])
                for datum in link[2]
            ]
        ) for link in form_links]

    if should_edit('post_form_workflow_fallback'):
        form.post_form_workflow_fallback = request.POST.get('post_form_workflow_fallback')

    if should_edit('custom_instances'):
        instances = json.loads(request.POST.get('custom_instances'))
        try:  # validate that custom instances can be added into the XML
            for instance in instances:
                etree.fromstring(
                    "<instance id='{}' src='{}' />".format(
                        instance.get('instanceId'),
                        instance.get('instancePath')
                    )
                )
        except etree.XMLSyntaxError as error:
            return json_response(
                {'message': _("There was an issue with your custom instances: {}").format(error.message)},
                status_code=400
            )

        form.custom_instances = [
            CustomInstance(
                instance_id=instance.get("instanceId"),
                instance_path=instance.get("instancePath"),
            ) for instance in instances
        ]

    if should_edit('custom_assertions'):
        assertions = json.loads(request.POST.get('custom_assertions'))
        try:  # validate that custom assertions can be added into the XML
            for assertion in assertions:
                etree.fromstring(
                    '<assertion test="{test}"><text><locale id="abc.def"/>{text}</text></assertion>'.format(
                        **assertion
                    )
                )
        except etree.XMLSyntaxError as error:
            return json_response(
                {'message': _("There was an issue with your custom assertions: {}").format(error.message)},
                status_code=400
            )

        existing_assertions = {assertion.test: assertion for assertion in form.custom_assertions}
        new_assertions = []
        for assertion in assertions:
            try:
                new_assertion = existing_assertions[assertion.get('test')]
                new_assertion.text[lang] = assertion.get('text')
            except KeyError:
                new_assertion = CustomAssertion(
                    test=assertion.get('test'),
                    text={lang: assertion.get('text')}
                )
            new_assertions.append(new_assertion)

        form.custom_assertions = new_assertions

    if should_edit("shadow_parent"):
        form.shadow_parent_form_id = request.POST['shadow_parent']

    if should_edit("custom_icon_form"):
        error_message = handle_custom_icon_edits(request, form, lang)
        if error_message:
            return json_response(
                {'message': error_message},
                status_code=400
            )
    handle_media_edits(request, form, should_edit, resp, lang)

    app.save(resp)
    notify_form_changed(domain, request.couch_user, app_id, form_unique_id)
    if ajax:
        return HttpResponse(json.dumps(resp))
    else:
        return back_to_main(request, domain, app_id=app_id, form_unique_id=form_unique_id)
Example #10
0
def _edit_form_attr(request, domain, app_id, form_unique_id, attr):
    """
    Called to edit any (supported) form attribute, given by attr

    """

    ajax = json.loads(request.POST.get('ajax', 'true'))
    resp = {}

    app = get_app(domain, app_id)
    try:
        form = app.get_form(form_unique_id)
    except FormNotFoundException as e:
        if ajax:
            return HttpResponseBadRequest(unicode(e))
        else:
            messages.error(request,
                           _("There was an error saving, please try again!"))
            return back_to_main(request, domain, app_id=app_id)
    lang = request.COOKIES.get('lang', app.langs[0])

    def should_edit(attribute):
        return attribute in request.POST

    if should_edit("name"):
        name = request.POST['name']
        form.name[lang] = name
        if not form.form_type == "shadow_form":
            xform = form.wrapped_xform()
            if xform.exists():
                xform.set_name(name)
                save_xform(app, form, xform.render())
        resp['update'] = {
            '.variable-form_name': trans(form.name, [lang], use_delim=False)
        }
    if should_edit('comment'):
        form.comment = request.POST['comment']
    if should_edit("xform") or "xform" in request.FILES:
        try:
            # support FILES for upload and POST for ajax post from Vellum
            try:
                xform = request.FILES.get('xform').read()
            except Exception:
                xform = request.POST.get('xform')
            else:
                try:
                    xform = unicode(xform, encoding="utf-8")
                except Exception:
                    raise Exception(
                        "Error uploading form: Please make sure your form is encoded in UTF-8"
                    )
            if request.POST.get('cleanup', False):
                try:
                    # First, we strip all newlines and reformat the DOM.
                    px = parseString(xform.replace('\r\n', '')).toprettyxml()
                    # Then we remove excess newlines from the DOM output.
                    text_re = re.compile('>\n\s+([^<>\s].*?)\n\s+</',
                                         re.DOTALL)
                    prettyXml = text_re.sub('>\g<1></', px)
                    xform = prettyXml
                except Exception:
                    pass
            if xform:
                save_xform(app, form, xform)
            else:
                raise Exception("You didn't select a form to upload")
        except Exception as e:
            if ajax:
                return HttpResponseBadRequest(unicode(e))
            else:
                messages.error(request, unicode(e))
    if should_edit("references") or should_edit("case_references"):
        form.case_references = _get_case_references(request.POST)
    if should_edit("show_count"):
        show_count = request.POST['show_count']
        form.show_count = True if show_count == "True" else False
    if should_edit("put_in_root"):
        put_in_root = request.POST['put_in_root']
        form.put_in_root = True if put_in_root == "True" else False
    if should_edit('form_filter'):
        form.form_filter = request.POST['form_filter']
    if should_edit('post_form_workflow'):
        form.post_form_workflow = request.POST['post_form_workflow']
    if should_edit('auto_gps_capture'):
        form.auto_gps_capture = request.POST['auto_gps_capture'] == 'true'
    if should_edit('no_vellum'):
        form.no_vellum = request.POST['no_vellum'] == 'true'
    if (should_edit("form_links_xpath_expressions")
            and should_edit("form_links_form_ids")
            and toggles.FORM_LINK_WORKFLOW.enabled(domain)):
        form_links = zip(
            request.POST.getlist('form_links_xpath_expressions'),
            request.POST.getlist('form_links_form_ids'),
            [
                json.loads(datum_json) if datum_json else []
                for datum_json in request.POST.getlist('datums_json')
            ],
        )
        form.form_links = [
            FormLink(xpath=link[0],
                     form_id=link[1],
                     datums=[
                         FormDatum(name=datum['name'], xpath=datum['xpath'])
                         for datum in link[2]
                     ]) for link in form_links
        ]

    if should_edit('post_form_workflow_fallback'):
        form.post_form_workflow_fallback = request.POST.get(
            'post_form_workflow_fallback')

    if should_edit('custom_instances'):
        instances = json.loads(request.POST.get('custom_instances'))
        try:  # validate that custom instances can be added into the XML
            for instance in instances:
                etree.fromstring("<instance id='{}' src='{}' />".format(
                    instance.get('instanceId'), instance.get('instancePath')))
        except etree.XMLSyntaxError as error:
            return json_response(
                {
                    'message':
                    _("There was an issue with your custom instances: {}").
                    format(error.message)
                },
                status_code=400)

        form.custom_instances = [
            CustomInstance(
                instance_id=instance.get("instanceId"),
                instance_path=instance.get("instancePath"),
            ) for instance in instances
        ]
    if should_edit("shadow_parent"):
        form.shadow_parent_form_id = request.POST['shadow_parent']

    if should_edit("custom_icon_form"):
        error_message = handle_custom_icon_edits(request, form, lang)
        if error_message:
            return json_response({'message': error_message}, status_code=400)
    handle_media_edits(request, form, should_edit, resp, lang)

    app.save(resp)
    notify_form_changed(domain, request.couch_user, app_id, form_unique_id)
    if ajax:
        return HttpResponse(json.dumps(resp))
    else:
        return back_to_main(request,
                            domain,
                            app_id=app_id,
                            form_unique_id=form_unique_id)