// Transform db => db.Entities.Where(args) into args => db => db.Entities.Where(args)
public static GraphQLFieldBuilder <TContext, TEntity> AddField <TContext, TEntity>(this GraphQLSchema <TContext> context, string name, Expression <Func <TContext, TEntity> > queryableGetter)
{
var info = GetQueryInfo(queryableGetter);
if (info.ResolutionType != ResolutionType.Unmodified)
{
return(context.AddFieldInternal(name, GetFinalQueryFunc <TContext, object, IEnumerable <TEntity> >(info.BaseQuery), info.ResolutionType));
}
return(context.AddUnmodifiedFieldInternal(name, GetFinalQueryFunc <TContext, object, TEntity>(info.OriginalQuery)));
}
// Transform (db, args) => db.Entities.First(args) into args => db => db.Entities.First(args)
private static GraphQLFieldBuilder <TContext, TEntity> AddField <TContext, TArgs, TEntity>(this GraphQLSchema <TContext> context, string name, Expression <Func <TContext, TArgs, TEntity> > queryableGetter)
{
var innerLambda = Expression.Lambda <Func <TContext, TEntity> >(queryableGetter.Body, queryableGetter.Parameters[0]);
var info = GetQueryInfo(innerLambda);
if (info.ResolutionType != ResolutionType.Unmodified)
{
return(context.AddFieldInternal(name, GetFinalQueryFunc <TContext, TArgs, IEnumerable <TEntity> >(info.BaseQuery, queryableGetter.Parameters[1]), info.ResolutionType));
}
return(context.AddUnmodifiedFieldInternal(name, GetFinalQueryFunc <TContext, TArgs, TEntity>(info.OriginalQuery, queryableGetter.Parameters[1])));
}
// Transform (db, args) => db.Entities.Where(args) into args => db => db.Entities.Where(args)
private static GraphQLFieldBuilder <TContext, TEntity> AddListField <TContext, TArgs, TEntity>(this GraphQLSchema <TContext> context, string name, Expression <Func <TContext, TArgs, IEnumerable <TEntity> > > queryableGetter)
{
var innerLambda = Expression.Lambda <Func <TContext, IEnumerable <TEntity> > >(queryableGetter.Body, queryableGetter.Parameters[0]);
return(context.AddFieldInternal(name, GetFinalQueryFunc <TContext, TArgs, IEnumerable <TEntity> >(innerLambda, queryableGetter.Parameters[1]), ResolutionType.ToList));
}
// Transform db => db.Entities.Where(args) into args => db => db.Entities.Where(args)
public static GraphQLFieldBuilder <TContext, TEntity> AddListField <TContext, TEntity>(
this GraphQLSchema <TContext> context, string name,
Expression <Func <TContext, IEnumerable <TEntity> > > queryableGetter)
{
return(context.AddFieldInternal(name, GetFinalQueryFunc <TContext, object, IEnumerable <TEntity> >(queryableGetter), ResolutionType.ToList));
}
