Changes

===Restricting Property Values===

===Restricting Property Values===

When you create a new property that has a Page (or Text, or possibly other values) that can be assigned to a wide range of values, it might be nice to restrict those values to a particular subset so that typos don't render the property useless. This has been done on the [[Property:Is used in domain|Is used in domain]] and the [[Property:Is located in facility|Is located in facility]] properties. You will see a special property added to those property pages called [https://www.semantic-mediawiki.org/wiki/Help:Special_property_Allows_value_list Allows value list]. The [[https://www.semantic-mediawiki.org/wiki/Help:Special_property_Allows_value_list help link] provides all of the pertinent information, but of special importance is the following:

When you create a new property that has a Page (or Text, or possibly other values) that can be assigned to a wide range of values, it might be nice to restrict those values to a particular subset so that typos don't render the property useless. This has been done on the [[Property:Is used in domain|Is used in domain]] and the [[Property:Is located in facility|Is located in facility]] properties. You will see a special property added to those property pages called [https://www.semantic-mediawiki.org/wiki/Help:Special_property_Allows_value_list Allows value list]. The [[https://www.semantic-mediawiki.org/wiki/Help:Special_property_Allows_value_list help link] provides all of the pertinent information, but of special importance is the following:

  <nowiki>Two steps have to be taken to use this special property:

  <nowiki>Two steps have to be taken to use this special property:

This autogenerates the correct ordered list for everything marked [Property:Is domain]. One might think that using the |format=ul would create the appropriate unordered list format (with the * in front), but it apparently does not. Therefore, this query removes the page link (link=none) and reduces the entry to simple text, and then it uses the template ([Template:Starlist_for_allow_value_list]) to render the text with a * in front of it (''See [https://www.mediawiki.org/wiki/Help:Templates help on templates) for an explanation of templates'''. This works well.  

This autogenerates the correct ordered list for everything marked [Property:Is domain]. One might think that using the |format=ul would create the appropriate unordered list format (with the * in front), but it apparently does not. Therefore, this query removes the page link (link=none) and reduces the entry to simple text, and then it uses the template ([Template:Starlist_for_allow_value_list]) to render the text with a * in front of it (''See [https://www.mediawiki.org/wiki/Help:Templates help on templates) for an explanation of templates'''. This works well.  

===Philosophy on New Properties===

===Philosophy on New Properties===

Basically, there isn't much of one. The beauty of properties is that you can add them, and mix and match them to form unique queries. I suspect that there will be a query that shows every piece of equipment in the Maker Hub. There could be one that shows everything - equipment, tools, supplies, etc. There could be one that shows equipment in the machine shop. And then, one can create more focused properties. I have initially created two as examples - [Property:Is sheet metal equipment|Is sheet metal equipment] and [Property:Is soldering iron equipment|Is soldering iron equipment]. I suspect that we will mark the [[Sheet Metal Shear]] as both [Property:Is equipment|Is equipment]  and [Property:Is sheet metal equipment|Is sheet metal equipment]. This way, the [[Sheet Metal Shear]] will show up on lists that show equipment as well as lists that show the more focused sheet metal equipment. However, [[Soldering Irons]] will be marked as [Property:Is equipment|Is equipment], but the [[Weller_WES51]] will only be marked as [Property:Is soldering iron equipment|Is soldering iron equipment]. This means that [[Soldering Irons]] will show up on a general equipment query, but the [[Weller_WES51]] will not. This decision is somewhat arbitrary and is left to the Wiki editors. In this case, there is no reason to see every particular type of soldering iron on a general equipment list, but the sheet metal sheer will show up.

Basically, there isn't much of one. The beauty of properties is that you can add them, and mix and match them to form unique queries. I suspect that there will be a query that shows every piece of equipment in the Maker Hub. There could be one that shows everything - equipment, tools, supplies, etc. There could be one that shows equipment in the machine shop. And then, one can create more focused properties. I have initially created two as examples - [Property:Is sheet metal equipment|Is sheet metal equipment] and [Property:Is soldering iron equipment|Is soldering iron equipment]. I suspect that we will mark the [[Sheet Metal Shear]] as both [Property:Is equipment|Is equipment]  and [Property:Is sheet metal equipment|Is sheet metal equipment]. This way, the [[Sheet Metal Shear]] will show up on lists that show equipment as well as lists that show the more focused sheet metal equipment. However, [[Soldering Irons]] will be marked as [Property:Is equipment|Is equipment], but the [[Weller_WES51]] will only be marked as [Property:Is soldering iron equipment|Is soldering iron equipment]. This means that [[Soldering Irons]] will show up on a general equipment query, but the [[Weller_WES51]] will not. This decision is somewhat arbitrary and is left to the Wiki editors. In this case, there is no reason to see every particular type of soldering iron on a general equipment list, but the sheet metal sheer will show up, like this: [[File:small_warning_icon.png|Small Warning Icon]].

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