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New index - create parameters programmatically

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Lars Larsen
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Posted on 15/09/2015 14:46:43

Hi,

Is it possible to programmatically add parameters to an index? If so how is it done?


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Nicolai Høeg Pedersen
Posted on 15/09/2015 15:34:43
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You do not add parameters to an index. In the index you have documents which again has fields.

A search can have parameters - which are values for the right hand side of the search criteria.

Queries and its criterias (Expressions) and parameters are saved in a XML file found in /Files/System/Repositories/YourRepositoryName/YourQueryName.query

You can read it like this (Reference Dynamicweb.Querying):

Dim queryService As IQueryService = ServiceLocator.Current.GetInstance(Of IQueryService)()
Dim query As IQuery = queryService.LoadQuery("YourRepositoryName", "YourQueryName" + ".query")
Dim exp As Expressions.GroupExpression = DirectCast(query.Expression, Expressions.GroupExpression)
exp.Expressions.Add(any Expressions.* expression type)
 
The Expressioin property on the query can return any Expressions.* type - so test it - but usually it will be a GroupExpression. The group expression then has a collection of expressions in its Expressions property - that will be your search.
 
The Query also have a Parameters property - that returns your parameters - used in the querystring.
Votes for this answer: 1
 
Lars Larsen
Posted on 16/09/2015 15:40:44
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Hi Nicolai

Oops, sorry I did not use the right terms for what I want to accomplish. But I want to add parameters to the search dynamically because I have added the sort order (in the backend) of products in product groups to fields in the index. Now I want to sort on these fields in the frontend and therefore needs these fields as parameters in the search. After having used your example code I managed to add the parameters to the Parameters property and now I can sort products in the frontend according to their sort order in the backend.

Thanks smiley

 

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