A filter can be compared to a single condition in an if-statement. Usually (almost always, see Group) the operators in the if-statement are "&&" (in JavaScript/C#)/"AND" (SQL).
For example, the filters:
reults in the if-statement (pseudo code):
If(asset.asset_type is in the supplied list of asset types AND asset.assetid is in the supplied list of asset IDs AND asset.itemid is in the supplied list of item IDs) {
AddAssetToResults()
}
A filter can be created by selecting the Input tab in the Search Editor and then clicking the "Add" button:
In the window, which pops up, there are three tabs: Meta data field, Table and column, and Predefined.
A Meta data field or Table and column filter MUST have some properties defined before it can be added to a search:
- The data, which the filter does work with. This is either a combination of Table and column or a Meta data field.
- The Draft - Comparison Type, which decides what logic the filter will apply to the data being worked with.
- The Input Type, which determines how the Media Manager and Video Portal gather input for a search (some Draft - Comparison Types does not have an Input Type associated with it; in these cases an input type is not required).
- The ID.
If a predefined filter is needed, then the only input from the user us usually only an ID. Though some predefined filters have Predetermined values, which MUST be supplied before the filter can be created.