Building complex conditional validation in <RULES>

Author: liam_davison
Publication Date: 1/11/2016 15:01

Good afternoon,

I am creating a simple image list. The image may, or may not, include a link to another page or external URL. For technical reasons, there are four "link" types available, "none", "internal", "news" and "external". The user must choose one using a CMS_INPUT_RADIOBUTTON. If a link type is chosen, we must ensure the user selects a PageRef, a Content2 row, or provides an external URL.

I cannot make this conditional rule work - if the clicks on "internal" then clicks on "external", and provides a URL for the external link, the CMS still shows an error for the "internal" link.

lt_link_type is the radiobutton

lt_internal_ref is an FS_REFERENCE

lt_news_or_event_ref is an FS_DATASET

lt_external_url is a CMS_INPUT_TEXT

The logic I want is:

IF lt_link_type == internal AND lt_internal_ref.isEmpty() THEN fail_validation

IF lt_link_type == news AND lt_news_or_event_ref.isEmpty() THEN fail_validation

IF lt_link_type == external AND lt_external_url.isEmpty() THEN fail_validation

IF lt_link_type == none THEN no_validation_required.

Here are my RULES:

<RULES>
<ON_EVENT>
<WITH>
<EQUAL>
<PROPERTY source="lt_link_type" name="VALUE"/>
<TEXT>internal</TEXT>
</EQUAL>
</WITH>
<DO>
<PROPERTY source="lt_internal_ref" name="VISIBLE"/>
</DO>
</ON_EVENT>
<ON_EVENT>
<WITH>
<EQUAL>
<PROPERTY source="lt_link_type" name="VALUE"/>
<TEXT>external</TEXT>
</EQUAL>
</WITH>
<DO>
<PROPERTY source="lt_external_text" name="VISIBLE"/>
<PROPERTY source="lt_external_url" name="VISIBLE"/>
</DO>
</ON_EVENT>
<ON_EVENT>
<WITH>
<EQUAL>
<PROPERTY source="lt_link_type" name="VALUE"/>
<TEXT>news</TEXT>
</EQUAL>
</WITH>
<DO>
<PROPERTY source="lt_news_or_event_ref" name="VISIBLE"/>
</DO>
</ON_EVENT>

<ON_EVENT>
<IF>
<EQUAL>
<PROPERTY source="lt_link_type" name="VALUE"/>
<TEXT>external</TEXT>
</EQUAL>
</IF>
<WITH>
<AND>
<EQUAL>
<PROPERTY source="lt_link_type" name="VALUE"/>
<TEXT>external</TEXT>
</EQUAL>
<NOT>
<PROPERTY source="lt_external_url" name="EMPTY"/>
</NOT>
</AND>
</WITH>
<DO>
<VALIDATION>
<PROPERTY source="lt_external_url" name="VALID"/>
<MESSAGE lang="*" text="External URL cannot be empty" />
</VALIDATION>
</DO>
</ON_EVENT>

<ON_EVENT>
<IF>
<EQUAL>
<PROPERTY source="lt_link_type" name="VALUE"/>
<TEXT>internal</TEXT>
</EQUAL>
</IF>
<WITH>
<AND>
<EQUAL>
<PROPERTY source="lt_link_type" name="VALUE"/>
<TEXT>internal</TEXT>
</EQUAL>
<NOT>
<PROPERTY source="lt_internal_ref" name="EMPTY"/>
</NOT>
</AND>
</WITH>
<DO>
<VALIDATION>
<PROPERTY source="lt_internal_ref" name="VALID"/>
<MESSAGE lang="*" text="You must choose a page" />
</VALIDATION>
</DO>
</ON_EVENT>

<ON_SAVE>
<IF>
<EQUAL>
<PROPERTY source="lt_link_type" name="VALUE"/>
<TEXT>news</TEXT>
</EQUAL>
</IF>
<WITH>
<AND>
<EQUAL>
<PROPERTY source="lt_link_type" name="VALUE"/>
<TEXT>news</TEXT>
</EQUAL>
<NOT>
<PROPERTY source="lt_news_or_event_ref" name="EMPTY"/>
</NOT>
</AND>
</WITH>
<DO>
<VALIDATION>
<PROPERTY source="lt_news_or_event_ref" name="VALID"/>
<MESSAGE lang="*" text="You must choose a news or event page" />
</VALIDATION>
</DO>
</ON_SAVE>
</RULES>

It seems to me that the CMS is ignoring the <IF> conditions on the rules.

Can I "reset" the validity of the components with an <ON_EVENT> when the user clicks on different lt_link_types?

Many thanks,

Liam Davison