I also need to be able to query the existing campaign negatives, but the
API doesn't seem to like our call. Here is how we are doing it:
final Selector selector = new Selector();
selector.setFields(new String[] {"Id", "CampaignId", "Keyword"});
final Predicate idPredicate = new Predicate(
"CampaignId",
PredicateOperator.EQUALS,
new String[] {String.valueOf(campaignId)});
final Predicate keywordPredicate = new Predicate(
"CriteriaType",
PredicateOperator.EQUALS,
new String[] {"Keyword"});
final Predicate negativePredicate = new Predicate(
"CriterionUse",
PredicateOperator.EQUALS,
new String[] {"Negative"});
selector.setPredicates(new Predicate[] {idPredicate, keywordPredicate,
negativePredicate});
The API returns with this:
[SelectorError.INVALID_FIELD_NAME @ serviceSelector; trigger:'Keyword';
errorDetails:Keyword, SelectorError.INVALID_PREDICATE_ENUM_VALUE @
serviceSelector; trigger:'Keyword'; errorDetails:Keyword,
SelectorError.INVALID_PREDICATE_FIELD_NAME @ serviceSelector;
trigger:'CriterionUse'; errorDetails:CriterionUse]
A couple questions:
1. What is the correct way to build the Selector and Predicates, to query
the campaign negatives?
2. For this case, where do we find the list of valid selector fields? For
instance, the API doesn't seem to have a problem with "CriteriaType", but
the API
documentation<http://code.google.com/apis/adwords/docs/reference/latest/CampaignCriterionService.CampaignCriterion.html>makes
it look like we should be passing "CampaignCriterion.Type" instead.
Is there a more appropriate page I should be looking at?
3. I see "CriterionUse" in the spec for ad group negatives but not campaign
negatives. Looking at the documentation for CampaignCriterionService, what
path do you take to find this field listed? I guess this is similar to
question #2, our team is missing the workflow that helps us understand how
to know which strings are available for any given call.
4. I am guessing that we shouldn't select "Keyword" in the Selector. The
author of our code thought that was how the actual criterion would be
returned. We will try without out, since the
documentation<http://code.google.com/apis/adwords/docs/reference/latest/CampaignCriterionService.CampaignCriterion.html>can
be interpreted to say that the Criterion object will always be returned.
Thanks for any help,
Jim
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