public static SearchDescriptor <T> UpdateSearchDescriptor <T>(this SearchDescriptor <T> selector,
Index index, SearchRequest request, string preAndPostTag)
where T : class
{
// Validate parameters.
if (selector == null)
{
throw new ArgumentNullException(nameof(selector));
}
if (index == null)
{
throw new ArgumentNullException(nameof(index));
}
if (string.IsNullOrWhiteSpace(preAndPostTag))
{
throw new ArgumentNullException(nameof(preAndPostTag));
}
request.Validate();
// Start updating.
selector = selector.
Index(Indices.Index(new [] { index.Name })).
Type <T>();
// Set take, skip.
if (request.Skip > 0)
{
selector = selector.Skip(request.Skip);
}
if (request.Take != null)
{
selector = selector.Size(request.Take.Value);
}
// Minimum score.
if (request.MinimumScore != null)
{
selector = selector.MinScore((double)request.MinimumScore.Value);
}
// Query all of the fields.
selector = selector.Query(
q => q.Bool(
b => b.
Should(request.QueryStringQuery <T>()).
Filter(request.Filter <T>())
)
);
// Highlight, if desired.
if (request.Highlight)
{
// Highlight.
selector = selector.Highlight(
h => h
.PreTags(preAndPostTag)
.PostTags(preAndPostTag)
.NumberOfFragments(0)
.RequireFieldMatch(false)
.Fields(f => f.Field("*"))
);
}
// Return the descriptor.
return(selector);
}