internal void Add <TProperty>(
List <QueryStepBuilderParameter <TProperty> > parameters,
Action <QueryExecutionContext> contextAction,
Dictionary <string, object> stepBagItems,
bool skipConnectionEdgeCheck,
Type overrideRepositoryWithType)
{
var step = new QueryStep
{
ContextAction = contextAction,
Items = stepBagItems,
OverrideRepositoryWithType = overrideRepositoryWithType,
SkipConnectionEdgeCheck = skipConnectionEdgeCheck
};
parameters.ForEach(parameter =>
{
// The property access might be getting converted to object to match the func.
// If so, get the operand and see if that's a member expression.
MemberExpression memberExpression = parameter.Expression.Body as MemberExpression ?? (parameter.Expression.Body as UnaryExpression)?.Operand as MemberExpression;
if (memberExpression != null)
{
// Find the member.
var rawMemberExpression = memberExpression.ToString();
var depth = rawMemberExpression.Count(x => x == '.');
string path = depth > 1 ? rawMemberExpression.Substring(rawMemberExpression.IndexOf('.') + 1) : memberExpression.Member.Name;
var accessor = TypeAccessor.Create(typeof(TProperty));
var member = accessor.GetMembers().ToList().Single(x =>
x.Name == (depth > 1 ? path.Substring(0, path.IndexOf('.')) : memberExpression.Member.Name));
var modelMember = new ModelMember(typeof(TProperty), accessor, member, false);
var qp = new QueryParameter
{
MemberModel = modelMember
};
if (parameter.Mapper == null)
{
Members.Add(modelMember);
}
else
{
qp.Mapper = ctx => parameter.Mapper(ctx.Context);
}
step.QueryParameters.Add(qp);
}
else
{
throw new ArgumentException("Expression provided is not a member expression.");
}
});
_querySteps.Add(step);
}
internal void Add <TProperty>(
List <Expression <Func <TProperty, object> > > expressions,
Func <QueryExecutionContext, List <object> > mapper,
Action <QueryExecutionContext> contextAction,
Dictionary <string, object> stepBagItems)
{
var step = new QueryStep
{
ContextAction = contextAction,
Mapper = mapper,
Items = stepBagItems
};
bool first = mapper != null;
expressions.ForEach(expression =>
{
// The property access might be getting converted to object to match the func.
// If so, get the operand and see if that's a member expression.
MemberExpression memberExpression = expression.Body as MemberExpression ?? (expression.Body as UnaryExpression)?.Operand as MemberExpression;
if (memberExpression != null)
{
// Find the member.
var rawMemberExpression = memberExpression.ToString();
var depth = rawMemberExpression.Count(x => x == '.');
string path = depth > 1 ? rawMemberExpression.Substring(rawMemberExpression.IndexOf('.') + 1) : memberExpression.Member.Name;
var accessor = TypeAccessor.Create(typeof(TProperty));
var member = accessor.GetMembers().ToList().Single(x =>
x.Name == (depth > 1 ? path.Substring(0, path.IndexOf('.')) : memberExpression.Member.Name));
var modelMember = new ModelMember(typeof(TProperty), accessor, member, false);
if (first)
{
first = false;
}
else
{
_modelMemberList.Add(modelMember);
}
step.QueryParameters.Add(new QueryParameter
{
MemberModel = modelMember
});
}
else
{
throw new ArgumentException("Expression provided is not a member expression.");
}
});
_querySteps.Add(step);
}
private void Add(bool isOptional, Member member)
{
var modelMember = new ModelMember(typeof(TSource),
_modelConvention.ModelType.GetTypeAccessor(), member, isOptional);
Members.Add(modelMember);
_queryStep.QueryParameters.Add(new QueryParameter {
MemberModel = modelMember
});
}
public static bool UseNullWhenOptional(this ModelMember modelMember)
{
if (modelMember.IsOptional)
{
var attr = modelMember.Member.GetAttribute(typeof(ModelFieldAttribute), false) as ModelFieldAttribute;
return(attr != null && attr.UseNullWhenOptional);
}
return(false);
}
public static ContextValue GetContextValue(this ResolveFieldContext <object> context, ModelMember modelMember)
{
var name = modelMember.Name;
var contextValue = new ContextValue();
contextValue.SelectValues = context.SubFields.Select(x =>
CreateSelectValue(x.Value)).ToList();
var args = context.Arguments;
if (args.ContainsKey(name))
{
Dictionary <string, object> arg = (Dictionary <string, object>)args[name];
if (modelMember.IsGuid)
{
contextValue.Values = new List <object> {
Guid.Parse(arg.First().Value.ToString())
};
}
else
{
contextValue.Values = new List <object> {
arg.First().Value
};
}
if (contextValue.Values == null)
{
throw new ArgumentNullException($"{name}.Value");
}
string comparison = arg.First().Key;
if (comparison == "equal")
{
contextValue.Comparison = Comparisons.Equal;
return(contextValue);
}
if (comparison == "contains" && contextValue.GetFirstValue() is string)
{
contextValue.Comparison = Comparisons.StringContains;
return(contextValue);
}
if (comparison == "startsWith" && contextValue.GetFirstValue() is string)
{
contextValue.Comparison = Comparisons.StringStartsWith;
return(contextValue);
}
if (comparison == "endsWith" && contextValue.GetFirstValue() is string)
{
contextValue.Comparison = Comparisons.StringEndsWith;
return(contextValue);
}
if (comparison == "notEqual" && (
contextValue.GetFirstValue() is int ||
contextValue.GetFirstValue() is DateTime))
{
contextValue.Comparison = Comparisons.NotEqual;
return(contextValue);
}
if (comparison == "greaterThan" && (
contextValue.GetFirstValue() is int ||
contextValue.GetFirstValue() is DateTime))
{
contextValue.Comparison = Comparisons.GreaterThan;
return(contextValue);
}
if (comparison == "greaterEqualThan" && (
contextValue.GetFirstValue() is int ||
contextValue.GetFirstValue() is DateTime))
{
contextValue.Comparison = Comparisons.GreaterEqualThan;
return(contextValue);
}
if (comparison == "lessThan" && (
contextValue.GetFirstValue() is int ||
contextValue.GetFirstValue() is DateTime))
{
contextValue.Comparison = Comparisons.LessThan;
return(contextValue);
}
if (comparison == "lessEqualThan" && (
contextValue.GetFirstValue() is int ||
contextValue.GetFirstValue() is DateTime))
{
contextValue.Comparison = Comparisons.LessEqualThan;
return(contextValue);
}
throw new NotImplementedException($"Comparison: {comparison} is not implemented for type {contextValue.GetFirstValue().GetType().Name}.");
}
return(contextValue);
}
