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  1. PO
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    <p>Yes you can, but you need to modify the format string slightly.</p> <p>Instead of doing:</p> <pre><code>[preds appendFormat:@" (attending = %@)", prov]; </code></pre> <p>You'd need to do:</p> <pre><code>[preds appendFormat:@" (attending = '%@')", prov]; </code></pre> <p>Note the use of single-quotes around the <code>%@</code> modifier. That's how the predicate knows it's a constant value.</p> <p>However, even if you go this route, you're still stuck using <code>predicateWithFormat:</code>, which you appear to want to avoid. You'll also likely have issues with how you're using <code>NSNull</code> in the format string.</p> <p>I would recommend doing something more like this:</p> <pre><code>NSArray *provs = [self.providerCode componentsSeparatedByString:@"|"]; NSMutableArray *providerPredicates = [NSMutableArray array]; NSPredicate *template = [NSPredicate predicateWithFormat:@"attending = $prov OR admitting = $prov OR consulting CONTAINS[cd] $prov"]; for (NSString *prov in provs) { NSDictionary *substitutions = [NSDictionary dictionaryWithObject:prov forKey:@"prov"]; NSPredicate *p = [template predicateWithSubstitutionVariables:substitutions]; [providerPredicates addObject:p]; } NSPredicate *final = [NSPredicate predicateWithFormat:@"inpatient = 1 AND dischargedate != nil"]; if ([providerPredicates count] &gt; 0) { NSPredicate *providers = nil; if ([providerPredicates count] &gt; 1) { providers = [NSCompoundPredicate orPredicateWithSubpredicates:providerPredicates]; } else { providers = [providerPredicates objectAtIndex:0]; } final = [NSCompoundPredicate andPredicateWithSubpredicates:[NSArray arrayWithObjects:final, providers, nil]]; } </code></pre> <p>This is using a couple different neat things:</p> <ol> <li>Predicate variables. You parse the format string <code>@"attending = $prov OR admitting = $prov OR consulting CONTAINS[cd] $prov"</code> once, and then simply substitute in new values for <code>$prov</code> each time you have a different provider</li> <li>Constructing compound predicates. You use some class methods on <code>NSCompoundPredicate</code> to turn multiple predicates into a single, grouped <code>OR</code> or <code>AND</code> predicate.</li> </ol>
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    1. POCreating predicate with pre-built string
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    1. USDave DeLong
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    1. COThank you dave...Your solution worked great!!
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      1. USuser680891
    2. CO@user680891 glad to hear it! to mark my answer as accepted, click on the checkmark underneath the up/down vote arrows.
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      1. USDave DeLong
 

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