/// <summary>
/// Parses a Querystring into DynamicQueryOptions instance.
/// </summary>
/// <param name="query">QueryString to parse.</param>
/// <param name="opShortCodes">Custom operation shortcodes.</param>
/// <returns>Parsed DynamicQueryOptions instance.</returns>
public static DynamicQueryOptions ParseQueryOptions(string query, CustomOpCodes opShortCodes = null)
{
try
{
var dynamicQueryOptions = new DynamicQueryOptions();
if (string.IsNullOrEmpty(query))
{
return(dynamicQueryOptions);
}
////+ character issue
////https://docs.microsoft.com/en-us/dotnet/api/system.web.httputility.urlencode?redirectedfrom=MSDN&view=net-5.0#System_Web_HttpUtility_UrlEncode_System_String_
if (QueryStringParser.IsQueryStringEncoded(query))
{
query = HttpUtility.UrlDecode(query);
}
DynamicQueryOptions innerQueryOptions = null;
const string innerMemberKey = "v=(";
int indexOfInnerMemberKey = query.IndexOf(innerMemberKey, StringComparison.Ordinal);
if (indexOfInnerMemberKey != -1)
{
indexOfInnerMemberKey += innerMemberKey.Length;
string innerQuery = query.Substring(indexOfInnerMemberKey, query.LastIndexOf(')') - indexOfInnerMemberKey);
innerQueryOptions = ParseQueryOptions(innerQuery, opShortCodes);
query = query.Replace(innerQuery, string.Empty);
}
string[] defaultArrayValue = new string[0];
NameValueCollection queryCollection = HttpUtility.ParseQueryString(query);
IEnumerable <QueryStringParserResult> queryStringParserResults = QueryStringParser
.GetAllParameterWithValue(query)
.Where(e => !string.IsNullOrEmpty(e.Value) && e.Value.Contains(InternalConstants.PLUS_CHARACTER)).ToList();
if (queryStringParserResults.Any())
{
QueryStringParser.ReplaceNameValueCollection(queryStringParserResults, queryCollection, InternalConstants.PARAMETER_VALUE_KEY);
}
string[] operations = queryCollection
.GetValues(InternalConstants.OPERATION_PARAMETER_KEY)
?.Select(x => x.ClearSpaces())
.ToArray() ?? defaultArrayValue;
string[] parameterNames = queryCollection
.GetValues(InternalConstants.PARAMETER_NAME_KEY)
?.Select(x => x.ClearSpaces())
.ToArray() ?? defaultArrayValue;
string[] parameterValues = queryCollection
.GetValues(InternalConstants.PARAMETER_VALUE_KEY)
?.ToArray() ?? defaultArrayValue;
string[] sortOptions = queryCollection
.GetValues(InternalConstants.SORT_OPTIONS_PARAMETER_KEY)
?.Select(x => x.ClearSpaces())
.ToArray() ?? defaultArrayValue;
string[] offsetOptions = queryCollection
.GetValues(InternalConstants.OFFSET_PARAMETER_KEY)
?.Select(x => x.ClearSpaces())
.ToArray() ?? defaultArrayValue;
string[] countOptions = queryCollection
.GetValues(InternalConstants.COUNT_PARAMETER_KEY)
?.Select(x => x.ClearSpaces())
.ToArray() ?? defaultArrayValue;
PopulateDynamicQueryOptions(
dynamicQueryOptions,
operations,
parameterNames,
parameterValues,
sortOptions,
offsetOptions,
countOptions,
opShortCodes: opShortCodes ?? Defaults.DefaultOpShortCodes,
memberQueryOptions: innerQueryOptions);
return(dynamicQueryOptions);
}
catch (Exception ex)
{
throw new DynamicQueryException("DynamicQueryBuilder has encountered an unhandled exception", query, ex);
}
}