/// <summary>
/// Initializes a new instance of <see cref="ArangoQueryProvider" /> using a custom <see cref="IQueryParser" />.
/// </summary>
public ArangoQueryProvider(Type queryableType, IQueryParser queryParser, IQueryExecutor executor,
IArangoLinq db)
: base(LinqUtility.CheckNotNull("queryParser", queryParser), LinqUtility.CheckNotNull("executor", executor))
{
LinqUtility.CheckNotNull("queryableType", queryableType);
CheckQueryableType(queryableType);
QueryableType = queryableType;
this.db = db;
}
//public static Expression WrapIntoNamedExpression(string memberName, Expression argumentExpression)
//{
// var expressionAsNamedExpression = argumentExpression as NamedExpression;
// if (expressionAsNamedExpression != null && expressionAsNamedExpression.Name == memberName)
// return expressionAsNamedExpression;
// return CreateFromMemberName(memberName, argumentExpression);
//}
public static Expression WrapIntoNamedExpression(IArangoLinq db, MemberInfo memberInfo,
Expression argumentExpression)
{
var memberName = LinqUtility.ResolveMemberNameRaw(db, memberInfo);
var expressionAsNamedExpression = argumentExpression as NamedExpression;
if (expressionAsNamedExpression != null && expressionAsNamedExpression.Name == memberName)
{
return(expressionAsNamedExpression);
}
var namedExpression = CreateFromMemberName(memberName, argumentExpression);
return(namedExpression);
}
public static Expression CreateNewExpressionWithNamedArguments(IArangoLinq db, NewExpression expression,
IEnumerable <Expression> processedArguments)
{
//var newArguments = processedArguments.Select((e, i) => WrapIntoNamedExpression(GetMemberName(expression.Members, i), e)).ToArray();
var newArguments = processedArguments
.Select((e, i) => WrapIntoNamedExpression(db, expression.Members[i], e)).ToArray();
if (!newArguments.SequenceEqual(expression.Arguments))
{
// ReSharper disable ConditionIsAlwaysTrueOrFalse - ReSharper is wrong, expression.Members can be null
// ReSharper disable HeuristicUnreachableCode
if (expression.Members != null)
{
return(New(expression.Constructor, newArguments, expression.Members));
}
return(New(expression.Constructor, newArguments));
// ReSharper restore HeuristicUnreachableCode
// ReSharper restore ConditionIsAlwaysTrueOrFalse
}
return(expression);
}
public AqlParser(IArangoLinq db)
{
this.db = db;
}
public static Expression CreateNewExpressionWithNamedArguments(IArangoLinq db, NewExpression expression)
{
LinqUtility.CheckNotNull("expression", expression);
return(CreateNewExpressionWithNamedArguments(db, expression, expression.Arguments));
}
public ArangoQueryExecuter(IArangoLinq db)
{
this.db = db;
}
public static string ResolveMemberName(IArangoLinq db, MemberInfo memberInfo)
{
return(AddBacktickToName(ResolveMemberNameRaw(db, memberInfo)));
}
public static string ResolveMemberNameRaw(IArangoLinq db, MemberInfo memberInfo)
{
return(ResolvePropertyNameRaw(db.ResolvePropertyName(memberInfo.DeclaringType, memberInfo.Name)));
}
public static string ResolveCollectionName(IArangoLinq db, Type itemType)
{
var collectionName = db.ResolveCollectionName(itemType);
return(AddBacktickToName(collectionName));
}
public ArangoQueryable(IQueryProvider provider, Expression expression, IArangoLinq db)
: base(provider, expression)
{
this.db = db;
}
public ArangoQueryable(IQueryParser queryParser, IQueryExecutor executor, IArangoLinq db)
: base(new ArangoQueryProvider(typeof(ArangoQueryable <>), queryParser, executor, db))
{
this.db = db;
}
