public async Task <SqlResponse <T> > DeleteBatch([NotNull] T[] batch, IResolveFieldContext context)
{
var selections = context.GetQuerySelections().ToArray();
var columns = context.GetArgument <IDictionary <string, object> >(nameof(batch)).Keys.ToArray();
var request = new BatchRequest
{
Delete = true,
Table = this.Table,
Input = batch.MapRowSet(columns)
};
selections
.If(selection => selection.Left(nameof(SqlResponse <T> .Data)))
.To(selection => selection.TrimStart($"{nameof(SqlResponse<T>.Data)}.") !)
.Do(selection => request.Output[selection] = "DELETED");
var sqlResponse = new SqlResponse <T>();
if (selections.Has(nameof(SqlResponse <T> .Table)))
{
sqlResponse.Table = this.Table;
}
if (selections.Any(selection => selection.Left(nameof(SqlResponse <T> .SQL))))
{
sqlResponse.SQL = await this._Mediator.ApplyRulesAsync <BatchRequest, string>(request);
}
if (request.Output.Any())
{
var data = await this._Mediator.ApplyRulesAsync <(ISqlApi, BatchRequest), RowSet>((this._SqlApi, request));
sqlResponse.Data = data?.Rows is not null?data.MapModels <T>() : Array <T> .Empty;
}
return(sqlResponse);
}
public async Task <SqlResponse <T> > Delete(string where, [AllowNull] Parameter[] parameters, IResolveFieldContext context)
{
var selections = context.GetQuerySelections().ToArray();
var request = new DeleteRequest
{
From = this.Table,
Where = where
};
parameters.Do(parameter => request.Parameters[parameter.Name] = parameter.Value);
selections
.If(selection => selection.Left(nameof(SqlResponse <T> .Data)))
.To(selection => selection.TrimStart($"{nameof(SqlResponse<T>.Data)}.") !)
.Do(selection => request.Output[selection] = "DELETED");
var sqlResponse = new SqlResponse <T>();
if (selections.Has(nameof(SqlResponse <T> .Table)))
{
sqlResponse.Table = this.Table;
}
if (selections.Any(selection => selection.Left(nameof(SqlResponse <T> .SQL))))
{
sqlResponse.SQL = await this._Mediator.ApplyRulesAsync <DeleteRequest, string>(request);
}
if (request.Output.Any())
{
var data = await this._Mediator.ApplyRulesAsync <(ISqlApi, DeleteRequest), RowSet>((this._SqlApi, request));
sqlResponse.Data = data?.Rows is not null?data.MapModels <T>() : Array <T> .Empty;
}
return(sqlResponse);
}
public async Task <SqlResponse <T> > Update([AllowNull] Parameter[] parameters, T set, string where, IResolveFieldContext context)
{
var selections = context.GetQuerySelections().ToArray();
var columns = context.GetArgument <IDictionary <string, object> >(nameof(set)).Keys.ToArray();
var request = new UpdateRequest
{
Table = this.Table,
Where = where
};
parameters.Do(parameter => request.Parameters[parameter.Name] = parameter.Value);
selections
.If(selection => selection.Left(nameof(SqlResponse <T> .Data)))
.To(selection => selection.TrimStart($"{nameof(SqlResponse<T>.Data)}.") !)
.Do(selection => request.Output[selection] = "INSERTED");
columns.Do(column =>
{
var property = TypeOf <T> .Properties.Values.First(property =>
property.Attributes.First <GraphNameAttribute>()?.Name.Is(column) is true) ?? TypeOf <T> .Properties.Get(column) !;
request.Set[property.Name] = property.GetValue(set);
});
var sqlResponse = new SqlResponse <T>();
if (selections.Has(nameof(SqlResponse <T> .Table)))
{
sqlResponse.Table = this.Table;
}
if (selections.Any(selection => selection.Left(nameof(SqlResponse <T> .SQL))))
{
sqlResponse.SQL = await this._Mediator.ApplyRulesAsync <UpdateRequest, string>(request);
}
if (request.Output.Any())
{
var data = await this._Mediator.ApplyRulesAsync <(ISqlApi, UpdateRequest), RowSet>((this._SqlApi, request));
sqlResponse.Data = data?.Rows is not null?data.MapModels <T>() : Array <T> .Empty;
}
return(sqlResponse);
}
public async Task <SqlResponse <T> > Select(
[AllowNull] string where,
[AllowNull] string having,
[AllowNull] OrderBy <T>[] orderBy,
[AllowNull] Parameter[] parameters,
IResolveFieldContext context)
{
var selections = context.GetQuerySelections().ToArray();
var request = new SelectRequest
{
From = this.Table,
Having = having,
Where = where
};
parameters.Do(parameter => request.Parameters[parameter.Name] = parameter.Value);
selections
.If(selection => selection.Left(nameof(SqlResponse <T> .Data)))
.To(selection => selection.TrimStart($"{nameof(SqlResponse<T>.Data)}.") !)
.Do(selection => request.Select[selection] = selection);
orderBy.Do(_ => request.OrderBy[_.Expression] = _.Sort);
var sqlResponse = new SqlResponse <T>();
if (selections.Has(nameof(SqlResponse <T> .Table)))
{
sqlResponse.Table = this.Table;
}
if (selections.Any(selection => selection.Left(nameof(SqlResponse <T> .SQL))))
{
sqlResponse.SQL = await this._Mediator.ApplyRulesAsync <SelectRequest, string>(request);
}
if (request.Select.Any())
{
var data = await this._Mediator.ApplyRulesAsync <(ISqlApi, SelectRequest), RowSet>((this._SqlApi, request));
sqlResponse.Data = data?.Rows is not null?data.MapModels <T>() : Array <T> .Empty;
}
return(sqlResponse);
}
