[Grok-dev] How do I look up a grok.Indexes utility so I can call methods on an index?

[Sebastian Ware]

That is the route I have been trying, but I am at a loss as to what interface to look up the catalog with. I can't find what grok.Indexes implements. I have been trying different versions of:

   getUtility( ???, 'content_index')

Mvh Sebastian


25 aug 2010 kl. 15.18 skrev Souheil CHELFOUH:

> the index is in the catalog itself.
> get the catalog, the stored values are the indexes which, themselves,
> store the values needed for the indexation.
> 
> 
> 2010/8/25 Sebastian Ware <sebastian at urbantalk.se>:
>> I have a value index from zc.catalog and I want to use the implemented sort method. However, I don't understand how to look up the actual index. The index is defined as:
>> 
>> class SitePublishCatalog(grok.Indexes):
>>    grok.site(Testvalueindex)
>>    grok.context(IPublished)
>>    grok.name('content_index')
>> 
>>    published = Value()
>> 
>> I want to be able to do call index.sort(res) on my results that come from hurry.query, in the way explained in the zc.catalog doctest.
>> 
>> """
>> Sorting
>> -------
>> 
>> Value indexes supports sorting, just like zope.index.field.FieldIndex.
>> 
>>    >>> index.clear()
>> 
>>    >>> index.index_doc(1, 9)
>>    >>> index.index_doc(2, 8)
>>    >>> index.index_doc(3, 7)
>>    >>> index.index_doc(4, 6)
>>    >>> index.index_doc(5, 5)
>>    >>> index.index_doc(6, 4)
>>    >>> index.index_doc(7, 3)
>>    >>> index.index_doc(8, 2)
>>    >>> index.index_doc(9, 1)
>> 
>>    >>> list(index.sort([4, 2, 9, 7, 3, 1, 5]))
>>    [9, 7, 5, 4, 3, 2, 1]
>> """
>> 
>> Mvh Sebastian
>> 
>> 
>> 
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