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#ifndef SCHEMARESOLVER_H
#define SCHEMARESOLVER_H
#include "parser/parser.h"
#include "parser/ast/sqlitequerytype.h"
#include "parser/ast/sqlitecreatetable.h"
#include "parser/ast/sqlitecreateindex.h"
#include "parser/ast/sqlitecreateview.h"
#include "parser/ast/sqlitecreatetrigger.h"
#include "coreSQLiteStudio_global.h"
#include "common/utils_sql.h"
#include "selectresolver.h"
#include "db/sqlresultsrow.h"
#include "db/sqlquery.h"
#include "db/db.h"
#include "common/strhash.h"
#include "common/expiringcache.h"
#include "parser/ast/sqlitequerytype.h"
#include <QStringList>
class SqliteCreateTable;
// TODO add cache
class API_EXPORT SchemaResolver
{
public:
enum ObjectType
{
TABLE,
INDEX,
TRIGGER,
VIEW,
ANY
};
struct ObjectDetails
{
QString name;
ObjectType type;
QString ddl;
QString refObject; // referenced object, i.e. parent table/view for index or trigger
};
struct TableListItem
{
enum Type
{
TABLE,
VIRTUAL_TABLE,
SHADOW_TABLE,
VIEW,
UNKNOWN
};
Type type;
QString name;
};
struct ObjectCacheKey
{
enum Type
{
OBJECT_NAMES,
OBJECT_DETAILS,
TABLE_LIST_ITEM,
OBJECT_DDL
};
ObjectCacheKey(Type type, Db* db, const QString& value1 = QString(), const QString& value2 = QString(), const QString& value3 = QString());
ObjectCacheKey(Type type, Db* db, bool skipSystemObj, const QString& value1 = QString(), const QString& value2 = QString(), const QString& value3 = QString());
Type type;
Db* db;
bool skipSystemObj;
QString value1;
QString value2;
QString value3;
};
explicit SchemaResolver(Db* db);
virtual ~SchemaResolver();
QStringList getTables(const QString& database = QString());
QStringList getIndexes(const QString& database = QString());
QStringList getTriggers(const QString& database = QString());
QStringList getViews(const QString& database = QString());
StrHash<QStringList> getGroupedIndexes(const QString& database = QString());
StrHash<QStringList> getGroupedTriggers(const QString& database = QString());
QSet<QString> getDatabases();
QStringList getObjects(const QString& type);
QStringList getObjects(const QString& database, const QString& type);
QStringList getAllObjects();
QStringList getAllObjects(const QString& database);
QString getUniqueName(const QString& database, const QString& namePrefix, const QStringList& forbiddenNames = QStringList());
QString getUniqueName(const QString& namePrefix = QString(), const QStringList& forbiddenNames = QStringList());
QStringList getFkReferencingTables(const QString& table);
QStringList getFkReferencingTables(const QString& database, const QString& table);
QStringList getFkReferencedTables(const QString& table);
QStringList getFkReferencedTables(const QString& database, const QString& table);
QStringList getIndexesForTable(const QString& database, const QString& table);
QStringList getIndexesForTable(const QString& table);
QStringList getTriggersForTable(const QString& database, const QString& table);
QStringList getTriggersForTable(const QString& table);
QStringList getTriggersForView(const QString& database, const QString& view);
QStringList getTriggersForView(const QString& view);
QStringList getViewsForTable(const QString& database, const QString& table);
QStringList getViewsForTable(const QString& table);
QStringList getIndexDdlsForTable(const QString& database, const QString& table);
QStringList getIndexDdlsForTable(const QString& table);
QStringList getTriggerDdlsForTableOrView(const QString& database, const QString& table);
QStringList getTriggerDdlsForTableOrView(const QString& table);
QList<TableListItem> getAllTableListItems();
QList<TableListItem> getAllTableListItems(const QString& database);
StrHash<ObjectDetails> getAllObjectDetails();
StrHash<ObjectDetails> getAllObjectDetails(const QString& database);
QList<SqliteCreateIndexPtr> getParsedIndexesForTable(const QString& database, const QString& table);
QList<SqliteCreateIndexPtr> getParsedIndexesForTable(const QString& table);
QList<SqliteCreateTriggerPtr> getParsedTriggersForTable(const QString& database, const QString& table, bool includeContentReferences = false);
QList<SqliteCreateTriggerPtr> getParsedTriggersForTable(const QString& table, bool includeContentReferences = false);
QList<SqliteCreateTriggerPtr> getParsedTriggersForView(const QString& database, const QString& view, bool includeContentReferences = false);
QList<SqliteCreateTriggerPtr> getParsedTriggersForView(const QString& view, bool includeContentReferences = false);
QList<SqliteCreateViewPtr> getParsedViewsForTable(const QString& database, const QString& table);
QList<SqliteCreateViewPtr> getParsedViewsForTable(const QString& table);
bool isWithoutRowIdTable(const QString& table);
bool isWithoutRowIdTable(const QString& database, const QString& table);
bool isVirtualTable(const QString& database, const QString& table);
bool isVirtualTable(const QString& table);
SqliteCreateTablePtr resolveVirtualTableAsRegularTable(const QString& table);
SqliteCreateTablePtr resolveVirtualTableAsRegularTable(const QString& database, const QString& table);
QStringList getRowIdTableColumns(const QString& table);
QStringList getRowIdTableColumns(const QString& database, const QString& table);
/**
* @brief getTableColumns Get column names for a table.
* @param table Table to query.
* @param onlyReal If true, the method will skip columns that are not real (like GENERATED columns).
* @return List of column names of the table.
* This does something similar to getting list of columns with
* PRAGMA table_info(), but the pragma in Sqlite2 doesn't support
* queries for attached databases, therefore this method is provided
* to make this possible. It finds table's DDL and parses it,
* then extracts list of columns from parsing results.
*/
QStringList getTableColumns(const QString& table, bool onlyReal = false);
/**
* @brief getTableColumns Get column names for a table.
* @param database Attached database name.
* @param table Table to query.
* @param onlyReal If true, the method will skip columns that are not real (like GENERATED columns).
* @return List of column names of the table.
* @overload
*/
QStringList getTableColumns(const QString& database, const QString& table, bool onlyReal = false);
StrHash<DataType> getTableColumnDataTypesByName(const QString& table);
StrHash<DataType> getTableColumnDataTypesByName(const QString& database, const QString& table);
QList<DataType> getTableColumnDataTypes(const QString& table, int expectedNumberOfTypes = -1);
QList<DataType> getTableColumnDataTypes(const QString& database, const QString& table, int expectedNumberOfTypes = -1);
StrHash<QStringList> getAllTableColumns(const QString& database = QString());
QStringList getViewColumns(const QString& view);
QStringList getViewColumns(const QString& database, const QString& view);
QList<SelectResolver::Column> getViewColumnObjects(const QString& view);
QList<SelectResolver::Column> getViewColumnObjects(const QString& database, const QString& view);
QString getObjectDdl(const QString& name, ObjectType type);
QString getObjectDdl(const QString& database, const QString& name, ObjectType type);
QStringList getColumnsFromDdlUsingPragma(const QString& ddl);
QStringList getColumnsUsingPragma(const QString& tableOrView, bool onlyReal = false);
QStringList getColumnsUsingPragma(const QString& database, const QString& tableOrView, bool onlyReal = false);
QStringList getColumnsUsingPragma(SqliteCreateTable* createTable);
QStringList getColumnsUsingPragma(SqliteCreateView* createView);
/**
* @brief Parses given object's DDL.
* @param name Name of the object in the database.
* @return Parsed object, or null pointer if named object was not in the database, or parsing error occurred.
*
* Returned query has to be deleted outside!
*/
SqliteQueryPtr getParsedObject(const QString& name, ObjectType type);
/**
* @brief Parses given object's DDL.
* @param database Database that the object is in (the attach name of the database).
* @param name Name of the object in the database.
* @return Parsed object, or null pointer if named object was not in the database, or parsing error occurred.
* @overload
*/
SqliteQueryPtr getParsedObject(const QString& database, const QString& name, ObjectType type);
StrHash<SqliteQueryPtr> getAllParsedObjects();
StrHash<SqliteQueryPtr> getAllParsedObjects(const QString& database);
StrHash<SqliteCreateTablePtr> getAllParsedTables();
StrHash<SqliteCreateTablePtr> getAllParsedTables(const QString& database);
StrHash<SqliteCreateIndexPtr> getAllParsedIndexes();
StrHash<SqliteCreateIndexPtr> getAllParsedIndexes(const QString& database);
StrHash<SqliteCreateTriggerPtr> getAllParsedTriggers();
StrHash<SqliteCreateTriggerPtr> getAllParsedTriggers(const QString& database);
StrHash<SqliteCreateViewPtr> getAllParsedViews();
StrHash<SqliteCreateViewPtr> getAllParsedViews(const QString& database);
QStringList getTablePrimaryKeyColumns(const QString& table);
QStringList getTablePrimaryKeyColumns(const QString& database, const QString& table);
QString getSqliteAutoIndexDdl(const QString& database, const QString& index);
static QString getSqliteMasterDdl(bool schema, bool temp = false);
static ObjectType objectTypeFromQueryType(const SqliteQueryType& queryType);
QStringList getCollations();
bool getIgnoreSystemObjects() const;
void setIgnoreSystemObjects(bool value);
bool getNoDbLocking() const;
void setNoDbLocking(bool value);
QString normalizeCaseObjectName(const QString& name);
QString normalizeCaseObjectName(const QString& database, const QString& name);
static QString objectTypeToString(ObjectType type);
static ObjectType stringToObjectType(const QString& type);
static TableListItem::Type stringToTableListItemType(const QString& type);
static void staticInit();
static_char* USE_SCHEMA_CACHING = "useSchemaCaching";
private:
bool usesCache();
SqliteQueryPtr getParsedDdl(const QString& ddl);
SqliteCreateTablePtr virtualTableAsRegularTable(const QString& database, const QString& table);
StrHash< QStringList> getGroupedObjects(const QString &database, const QStringList& inputList, SqliteQueryType type);
bool isFilteredOut(const QString& value, const QString& type);
void filterSystemIndexes(QStringList& indexes);
QList<SqliteCreateTriggerPtr> getParsedTriggersForTableOrView(const QString& database, const QString& tableOrView, bool includeContentReferences);
QString getObjectDdlWithDifficultName(const QString& dbName, const QString& lowerName, QString targetTable, ObjectType type);
QString getObjectDdlWithSimpleName(const QString& dbName, const QString& lowerName, QString targetTable, ObjectType type);
StrHash<QString> getIndexesWithTables(const QString& database = QString());
QString normalizeCaseObjectNameByQuery(const QString& query, const QString& name);
QStringList getObjectDdlsReferencingTableOrView(const QString& database, const QString& table, ObjectType type);
template <class T>
StrHash<QSharedPointer<T>> getAllParsedObjectsForType(const QString& database, const QString& type);
Db* db = nullptr;
Parser* parser = nullptr;
bool ignoreSystemObjects = false;
Db::Flags dbFlags;
static ExpiringCache<ObjectCacheKey,QVariant> cache;
static ExpiringCache<QString, QString> autoIndexDdlCache;
};
int qHash(const SchemaResolver::ObjectCacheKey& key);
int operator==(const SchemaResolver::ObjectCacheKey& k1, const SchemaResolver::ObjectCacheKey& k2);
template <class T>
StrHash<QSharedPointer<T>> SchemaResolver::getAllParsedObjectsForType(const QString& database, const QString& type)
{
StrHash< QSharedPointer<T>> parsedObjects;
QString dbName = getPrefixDb(database);
SqlQueryPtr results;
if (type.isNull())
results = db->exec(QString("SELECT name, type, sql FROM %1.sqlite_master;").arg(dbName));
else
results = db->exec(QString("SELECT name, type, sql FROM %1.sqlite_master WHERE type = '%2';").arg(dbName, type));
QString name;
SqliteQueryPtr parsedObject;
QSharedPointer<T> castedObject;
for (SqlResultsRowPtr row : results->getAll())
{
name = row->value("name").toString();
parsedObject = getParsedDdl(row->value("sql").toString());
if (!parsedObject)
continue;
if (isFilteredOut(name, row->value("type").toString()))
continue;
castedObject = parsedObject.dynamicCast<T>();
if (castedObject)
parsedObjects[name] = castedObject;
}
return parsedObjects;
}
#endif // SCHEMARESOLVER_H
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