protected virtual TOut OnGetByQueryAs <TOut>(Type structureType, Expression <Func <TOut, bool> > predicate)
where TOut : class
{
Ensure.That(structureType, "structureType").IsNotNull();
Ensure.That(predicate, "predicate").IsNotNull();
var structureSchema = OnUpsertStructureSchema(structureType);
return(Db.CacheProvider.Consume(
structureSchema,
predicate,
e =>
{
var queryBuilder = Db.ProviderFactory.GetQueryBuilder <TOut>(Db.StructureSchemas);
queryBuilder.Where(predicate);
var query = queryBuilder.Build();
var sqlQuery = QueryGenerator.GenerateQuery(query);
var sourceData = DbClient.ReadJson(structureSchema, sqlQuery.Sql, sqlQuery.Parameters).SingleOrDefault();
return Db.Serializer.Deserialize <TOut>(sourceData);
},
CacheConsumeMode));
}
protected virtual IEnumerable <object> OnQuery(IQuery query, Type structureType)
{
Ensure.That(structureType, "structureType").IsNotNull();
Ensure.That(query, "query").IsNotNull();
var structureSchema = OnUpsertStructureSchema(structureType);
if (query.IsEmpty)
{
return(Db.Serializer.DeserializeMany(DbClient.GetJsonOrderedByStructureId(structureSchema), structureType));
}
var sqlQuery = QueryGenerator.GenerateQuery(query);
return(Db.CacheProvider.Consume(
structureSchema,
sqlQuery,
q =>
{
var sourceData = DbClient.ReadJson(structureSchema, sqlQuery.Sql, sqlQuery.Parameters);
return Db.Serializer.DeserializeMany(sourceData, structureType);
},
ExecutionContext.Session.CacheConsumeMode));
}
public string Generate(string name, Action <IQueryBuilder <T> > spec)
{
Ensure.That(name, "name").IsNotNullOrWhiteSpace();
Ensure.That(spec, "spec").IsNotNull();
QueryBuilder.Clear();
spec.Invoke(QueryBuilder);
//Turns lamba expressions to a custom (serializable) node tree
var query = QueryBuilder.Build();
//Turns the parsed lambdas above to an internal SQL Expression tree and then to a SQL Query
var dbQuery = DbQueryGenerator.GenerateQuery(query);
const string format = "create procedure {0}\r\n{1}\r\nas\r\nbegin\r\n{2}\r\nend;";
var parameters = GenerateInputParametersString(dbQuery);
var body = GenerateBody(dbQuery);
return(string.Format(format, name, parameters, body));
}
