/// <summary>Initializes a new instance of the <see cref="T:Common.Features.Cruds.Filterable.EntitySqlFilterOperation" /> class.</summary>
public EntitySqlFilterOperation(EntitySqlFilterOperationParameters parameters, SqlFilterStatementParser <TEntity, TFilterableEntity, TKey> filterStatementParser)
{
_parameters = parameters;
_filterStatementParser = filterStatementParser;
ShouldContains(_parameters.Sql, WhereClause);
ShouldContains(_parameters.Sql, OrderByClause);
ShouldContains(_parameters.Sql, PaggingClause);
}
public ResourcePointConfigurator <TEntity, TFilterableEntity, TKey> UseFilterableEntityOperation <TFilterableOperation>(Action <EntitySqlFilterOperationParameters> config)
where TFilterableOperation : EntitySqlFilterOperation <TEntity, TFilterableEntity, TKey>
{
_filterableEntityOperation = typeof(TFilterableOperation);
var parameters = new EntitySqlFilterOperationParameters();
config(parameters);
_filterableEntityOperationParameters = parameters;
return(this);
}
private bool AddStatement(bool isFirst, FilterStatement filterStatement, List <object> parameterList, StringBuilder whereBuilder, EntitySqlFilterOperationParameters operationParameters)
{
var currentIndex = parameterList.Count;
var value = FilterTypeCorrector.ChangeType <TFilterableEntity>(filterStatement.ParameterName, filterStatement.ParameterValue);
if (value == null)
{
return(false);
}
parameterList.Add(value);
if (!isFirst)
{
if (filterStatement.LogicalOperator == FilterLogicalOperators.Or)
{
whereBuilder.Append(" OR ");
}
else
{
whereBuilder.Append(" AND ");
}
}
var columnName = CreateColumnName(filterStatement.ParameterName, operationParameters);
CreateLogicalOperation(whereBuilder, columnName, currentIndex, filterStatement.ComparisonOperator);
return(true);
}
public (string where, object[] parameters) Parse(IList <FilterStatement> statements, EntitySqlFilterOperationParameters operationParameters)
{
var parameterList = new List <object>();
var whereBuilder = new StringBuilder();
whereBuilder.Append(" WHERE (");
AddIsDeleted(parameterList, whereBuilder, operationParameters);
TryAddTenant(parameterList, whereBuilder, operationParameters);
whereBuilder.Append(" )");
if (statements.Any())
{
whereBuilder.Append(" AND ( ");
var isFirst = true;
foreach (var filterStatement in statements)
{
var added = AddStatement(isFirst, filterStatement, parameterList, whereBuilder, operationParameters);
if (added)
{
isFirst = false;
}
}
whereBuilder.Append(" ) ");
}
return(whereBuilder.ToString(), parameterList.ToArray());
}
