magma collections - indexing and searching.

[Chris Muller]

Does an OR conditions work?

> aReader := (self root at: #fields)
> where:[
> :each |
> (each fieldName at: aFieldName )
> |    <----------------- try OR condition instead *********
> (each moduleName at: aModule)].


On Wed, Sep 15, 2010 at 1:27 PM, Timothy James Ziebart
<timothy at churchmilitant.org> wrote:
> Hi all,   I have setup a MagmaCollection with two indexes. I loaded the
> initial data and it appeared to be successful.   I have the following
> search:
>
> getMessagesFor: aModule fieldName: aFieldName
> "Retreive message from the database"
> |aReader|
> aReader := (self root at: #fields)
> where:[
> :each |
> (each fieldName at: aFieldName )
> &
> (each moduleName at: aModule)].
>
> ^aReader asArray.
>
> For the records loaded initially this works fine.  However any records I add
> in the application do not get retrieved using the above method.  But  I can
> recover the new records searching on the fieldName and moduleName
> separately.  So the indexes appear to be correct.  Any Suggestions?  Am I
> missing a step?  Below I've included more details on the initial setup.
> Thanks again for your help.
>
> Tim
>
>
> Initial Setup:
>
> myCollection := MagmaCollection new.
> newIndex := MaSearchStringIndex attribute: #fieldName.
> myCollection addIndex: newIndex.
> newIndex := MaSearchStringIndex attribute: #moduleName.
> myCollection addIndex: newIndex.
>
> I added my records using a do loop:
>
> (fields ) do:[ :each |
> myCollection add: each
> ].
>
> The resulting collection was written to Magma.
>
> LBCRepository commit:[LBCRepository root at: #fields put: myCollection ].
>
> The addField method in the application is as follows:
>
> LBCRepository class method>> addField: aField
>
> self commit:[(self root at: #fields) add: aField]
>
>
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