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Subject: Re: Map function with regular expression
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From: Steven.Prentice@nextgen.net
Date: Wed, 2 Jun 2010 08:39:53 +1000
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I am not getting any results at all, will try your suggestions :)


From:
Sebastian Cohnen <sebastiancohnen@googlemail.com>
To:
user@couchdb.apache.org
Date:
01/06/2010 07:06 PM
Subject:
Re: Map function with regular expression


Hey Steven,

I have not tested your code, but what seems to be the problem? are you 
getting errors or simply not the output you anticipated?

Some hints though:
- you can use log() to emit messages to couchdb's logfile
- you should always use guards (like if (doc.Stores) { ... }) otherwise 
you can easily get nasty bugs
- you can use the js console command to test your code

On 01.06.2010, at 09:09, Steven.Prentice@nextgen.net wrote:

> Hi,
> 
> Ive got a document containing an array and want to perform a regex on an 

> array item called name, it is located in the Stores field
> 
> what ive got at the moment is...
> 
> function(doc) 
> { 
> 
>  for (id in doc.Stores)
>  {
>    //regular expression to ensure a store name starts with "C" and ends 
> with "k"
>    var strqry = doc.Stores[id].name.match(/^C([a-z]*)k/);
> 
>    if (strqry)
>    { 
>      emit(doc.Stores[id].name, doc.product_name + " qty: " + 
> doc.Stores[id].item_count);
>    }
>  } 
> }
> 
> a javascript regex validator told me that that regex is correct, I think 

> it may be something wrong with the way that I am pointing the regex to 
the 
> "stores[id].name"
> 
> Cheers :)


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