[HIVEMIND-167] Attribute schema element should allow unique checks only within a particular parent element

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Component/s: framework
• Assignee: Unassigned
• Reporter: Ben Tomasini
• Created: 22/Feb/06 06:46
• Updated: 22/Feb/06 06:46

Description

Currently, the unique attribute of the attribute schema element will verify that the attribute is unique within the contributions.

Sometimes you need to guaratee uniqueness, but only within a partent element.

For instance, this set of rules:

<schema>
<element name="report">
<attribute name="id" required="true" unique="true" />
<element name="param">
<attribute name="id" required="true" unique="true"/>
</element>
</element>
</schema>

will error out on:

<report id="report1">
<param id="param1" />
<param id="param2" />
</report>

<report id="report1">
<param id="param1" />
</report>

It would be nice to guarantee that the above is allowed, while still prohibiting the following:

<report id="report1">
<param id="param1" />
<param id="param2" />
</report>

<report id="report1">
<param id="param1" />
<param id="param1" />
</report>