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pFIBMetaData.pas
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pFIBMetaData.pas
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{***************************************************************}
{ FIBPlus - component library for direct access to Firebird and }
{ InterBase databases }
{ }
{ FIBPlus is based in part on the product }
{ Free IB Components, written by Gregory H. Deatz for }
{ Hoagland, Longo, Moran, Dunst & Doukas Company. }
{ mailto:[email protected] }
{ }
{ Copyright (c) 1998-2013 Devrace Ltd. }
{ Written by Serge Buzadzhy ([email protected]) }
{ }
{ ------------------------------------------------------------- }
{ FIBPlus home page: http://www.fibplus.com/ }
{ FIBPlus support : http://www.devrace.com/support/ }
{ ------------------------------------------------------------- }
{ }
{ Please see the file License.txt for full license information }
{***************************************************************}
unit pFIBMetaData;
interface
{$I FIBPlus.inc}
uses
Classes, SysUtils,ibase,DB,FIBPlatforms,
FIBDatabase,FIBQuery,FIBDataSet,pFIBProps,StrUtil,
pFIBInterfaces,fib{$IFDEF D6+}, Variants{$ENDIF}
;
const
DefTerminator = ';';
ProcTerminator = '^';
type
// Metadata Object Identifiers
TDBObjectType = (otDomain, otTable, otView, otProcedure, otGenerator,
otException, otUDF, otRole,otDBTrigger,otStoredFunctions,otPackage,otDatabase);
TDBObjectTypes = set of TDBObjectType;
// SubObjects
TTableChildType = (soTableFields, soPrimaryKey, soForeignKey, soTableTriggers,
soUniqueConstr,soIndex, soCheckConstr,soTableGrants);
TTableChildTypes = set of TTableChildType;
TViewChildType = (soViewFields, soViewTriggers,soViewGrants);
TViewChildTypes = set of TViewChildType;
TProcedureChild = (soProcFieldIn, soProcFieldOut,soProcGrants);
TProcedureChilds = set of TProcedureChild;
TUDFChild = (soUDFField);
TUDFChilds = set of TUDFChild;
TRoleChild=(soRoleGrants);
TTriggerType = (ttBefore, ttAfter,ttON);
TTriggerAction = (taInsert, taUpdate, taDelete,
taConnect,taDisconnect,taTransactionStart,taTransactionCommit,
taTransactionRollback
);
TTriggerActions = set of TTriggerAction;
TIndexOrder = (IoDescending, IoAscending);
TForeignKeyRule = (fkrRestrict, fkrCascade, fkrSetNull, fkrSetDefault);
TFIBFieldType = (fftUnKnown, fftNumeric, fftChar, fftVarchar, fftCstring, fftSmallint,
fftInteger, fftQuad, fftFloat, fftDoublePrecision, fftTimestamp, fftBlob, fftBlobId,
fftDate, fftTime, fftInt64 , fftBoolean);
TPrivilege=(goSelect,goInsert,goUpdate,goDelete,goReferences,goExecuteProc,goRole);
TPrivileges=set of TPrivilege;
TNotifyLoadMetaData=procedure (Sender:TObject; const Message:string; var Stop:boolean) of object;
TDDLTextOption=(dtoUseCreateDB,dtoUseSetClientLib,dtoUseSetTerm,dtoDecodeDomains,dtoIncludeGrants);
TDDLTextOptions=set of TDDLTextOption;
const
DefObjects = [otDomain, otTable, otView, otProcedure, otGenerator,
otException, otUDF, otRole,otDBTrigger];
DefTableChilds = [soTableFields, soPrimaryKey, soForeignKey, soTableTriggers,
soUniqueConstr,soIndex, soCheckConstr];
DefViewChilds = [soViewFields, soViewTriggers];
type
TCustomMetaObject = class;
TMetaObjectClass = class of TCustomMetaObject;
TMetaDomain = class;
TMetaTable = class;
TMetaDataItem = record
Childs: TList;
ClassID: TMetaObjectClass;
end;
TCustomMetaObject = class(TObject)
private
FName: string;
FFormatName:string;
FOwner: TCustomMetaObject;
FItems: array of TMetaDataItem;
FItemsCount: Integer;
FLoaded:boolean;
function GetChildObject(const ClassIndex, Index: Integer): TCustomMetaObject;
function GetChildObjectByName(const ClassIndex: Integer; const ObjectName:string): TCustomMetaObject;
function GetChildsCount(const ClassIndex: Integer): Integer;
function GetAsDDL: string;
procedure AddClass(ClassID: TMetaObjectClass);
function GenerateChildDDL(Stream: TFastStringStream; ChildType: Integer):integer;
function GetAsObjectDDL: string;
procedure SetName(const Value: string);
function GetItems(const Index: Integer): TMetaDataItem;
protected
procedure GenerateObjectDDL(Stream: TFastStringStream); virtual;
public
constructor Create(AOwner: TCustomMetaObject;aName:string=''); virtual;
destructor Destroy; override;
procedure Clear;
class function ClassIndex:integer; virtual;
class function IsSubObject:boolean; virtual;
procedure GenerateDDLText(Stream: TFastStringStream); virtual;
property Name: string read FName write SetName;
property AsDDL: string read GetAsDDL;
property AsObjectDDL: string read GetAsObjectDDL;
property ItemsCount: Integer read FItemsCount;
property Items[const Index: Integer]: TMetaDataItem read GetItems;
property Parent: TCustomMetaObject read FOwner;
property FormatName:string read FFormatName;
property Loaded:boolean read FLoaded;
end;
(* GRANT{
<privileges> ON [TABLE] {tablename | viewname}
TO {<object> | <userlist> | GROUP UNIX_group}
| EXECUTE ON PROCEDURE procname TO {<object> | <userlist>}
| <role_granted> TO {PUBLIC | <role_grantee_list>}};
<privileges> = {ALL [PRIVILEGES] | <privilege_list>}
<privilege_list> = {
SELECT
| DELETE
| INSERT
| UPDATE [(col [, col …])]
| REFERENCES [(col [, col …])]
[, <privilege_list> …]}}
<object> = {
PROCEDURE procname
| TRIGGER trigname
| VIEW viewname
| PUBLIC
[, <object> …]}
<userlist> = {
[USER] username
| rolename
| Unix_user}
[, <userlist> …]
[WITH GRANT OPTION]
<role_granted> = rolename [, rolename …]
*)
TCustomMetaGrant =class(TCustomMetaObject)
private
FObjectName:string;
FPrivileges:array of TPrivileges;
FFields :array of string;
FWithGrantOption:array of boolean;
FUserList :array of string;
procedure SetSize(Size:integer);
function GetSize:integer;
procedure LoadFromDataBase(QGrants:TFIBQuery; const Name: string;Pack:boolean=True);
protected
procedure GenerateObjectDDL(Stream: TFastStringStream); override;
property Count :integer read GetSize;
end;
TMetaViewGrant=class(TCustomMetaGrant)
public
class function ClassIndex:integer; override;
end;
TMetaTableGrant=class(TCustomMetaGrant)
public
class function ClassIndex:integer; override;
end;
TMetaProcGrant=class(TCustomMetaGrant)
public
class function ClassIndex:integer; override;
end;
TMetaRoleGrant=class(TCustomMetaGrant)
public
class function ClassIndex:integer; override;
end;
TMetaGenerator = class(TCustomMetaObject)
private
FValue: Integer;
procedure LoadFromDataBase(Transaction: TFIBTransaction; const aName: string);
protected
procedure GenerateObjectDDL(Stream: TFastStringStream); override;
public
class function ClassIndex:integer; override;
property Value: Integer read FValue;
end;
TArrBounds = record
LOWER_BOUND: INTEGER ;
UPPER_BOUND: INTEGER
end;
TFieldDimensions = array of TArrBounds;
TCustomMetaField = class(TCustomMetaObject)
private
FScale: Word;
FLength: Smallint;
FPrecision: Smallint;
FFieldType: TFIBFieldType;
FCharSet: string;
FSegmentLength: Smallint;
FSubType: Smallint;
FBytesPerCharacter: Smallint;
FIsArray :boolean;
FDimensions:TFieldDimensions;
FIdentity :Integer;
procedure LoadFromDataBase(QField,QCharset:TFIBQuery); virtual;
property SegmentLength: Smallint read FSegmentLength;
function GetShortFieldType: string;
function GetDimensionStr:string;
protected
procedure GenerateObjectDDL(Stream: TFastStringStream); override;
public
class function IsSubObject:boolean; override;
property Scale: Word read FScale;
property Length: Smallint read FLength;
property Precision: Smallint read FPrecision;
property FieldType: TFIBFieldType read FFieldType;
property CharSet: string read FCharSet;
property SubType: Smallint read FSubType;
property BytesPerCharacter: Smallint read FBytesPerCharacter;
property ShortFieldType: string read GetShortFieldType;
end;
TMetaField = class(TCustomMetaField)
private
procedure LoadFromDataBase(QField,QCharset:TFIBQuery); override;
protected
procedure GenerateObjectDDL(Stream: TFastStringStream); override;
public
class function ClassIndex: integer; override;
property SegmentLength;
end;
TMetaProcField = class(TMetaField)
private
FDomain:string;
FMechanizm:Smallint;
FUseDomain:boolean;
FUseRelation:boolean;
FRelationObject:string;
FRelationField :string;
FDefaultValue: string;
procedure DoLoadFromQuery(QField ,QCharset:TFIBQuery;CanUseParamDomain,CanUseProcParamRelation:boolean);
protected
procedure GenerateObjectDDL(Stream: TFastStringStream); override;
end;
TMetaProcInField = class(TMetaProcField)
public
class function ClassIndex: integer; override;
end;
TMetaProcOutField = class(TMetaProcField)
public
class function ClassIndex: integer; override;
end;
TMetaTableField = class(TMetaField)
private
FDefaultValue: string;
FNotNull: Boolean;
FDomain: Integer;
FDomainName:string;
FComputedSource: string;
FValidationSource: string;
procedure LoadFromDataBase(Q: TFIBQuery;C:TFIBQuery); override;
function GetDomain: TMetaDomain;
protected
procedure GenerateObjectDDL(Stream: TFastStringStream); override;
public
class function ClassIndex:integer; override;
property DefaultValue: string read FDefaultValue;
property NotNull: Boolean read FNotNull;
property Domain: TMetaDomain read GetDomain;
property ComputedSource: string read FComputedSource;
end;
TMetaDomain = class(TMetaTableField)
protected
procedure GenerateObjectDDL(Stream: TFastStringStream); override;
public
class function ClassIndex:integer; override;
class function IsSubObject:boolean; override;
procedure GenerateDDLText(Stream: TFastStringStream); override;
end;
TMetaConstraint = class(TCustomMetaObject)
private
FFields: array of Integer;
function GetFields(const Index: Word): TMetaTableField;
function GetFieldsCount: Word;
public
class function IsSubObject:boolean; override;
property Fields[const Index: Word]: TMetaTableField read GetFields;
property FieldsCount: Word read GetFieldsCount;
end;
TMetaPrimaryKey = class(TMetaConstraint)
private
procedure LoadFromDataBase(Q: TFIBQuery);
protected
procedure GenerateObjectDDL(Stream: TFastStringStream); override;
public
class function ClassIndex:integer; override;
end;
TMetaUniqueConstraint = class(TMetaConstraint)
protected
procedure GenerateObjectDDL(Stream: TFastStringStream); override;
public
class function ClassIndex:integer; override;
end;
TMetaForeignKey = class(TMetaConstraint)
private
FForTable: Integer;
FForFields: array of Integer;
FOnDelete: TForeignKeyRule;
FOnUpdate: TForeignKeyRule;
function GetForFields(const Index: Word): TMetaTableField;
function GetForFieldsCount: Word;
function GetForTable: TMetaTable;
protected
procedure GenerateObjectDDL(Stream: TFastStringStream); override;
public
class function ClassIndex:integer; override;
property ForTable: TMetaTable read GetForTable;
property ForFields[const Index: Word]: TMetaTableField read GetForFields;
property ForFieldsCount: Word read GetForFieldsCount;
property OnDelete: TForeignKeyRule read FOnDelete;
property OnUpdate: TForeignKeyRule read FOnUpdate;
end;
TMetaCheckConstraint = class(TCustomMetaObject)
private
FConstraint: string;
protected
procedure GenerateObjectDDL(Stream: TFastStringStream); override;
public
class function ClassIndex:integer; override;
property Constraint: string read FConstraint;
end;
TMetaIndex = class(TMetaConstraint)
private
FUnique: Boolean;
FActive: Boolean;
FOrder: TIndexOrder;
protected
procedure GenerateObjectDDL(Stream: TFastStringStream); override;
public
class function ClassIndex:integer; override;
property Unique: Boolean read FUnique;
property Active: Boolean read FActive;
property Order: TIndexOrder read FOrder;
end;
TCustomMetaTrigger = class(TCustomMetaObject)
private
FPrefix: TTriggerType;
FSuffix: TTriggerActions;
FPosition: Smallint;
FActive: Boolean;
FSource: string;
class function DecodePrefix(Value: Integer): TTriggerType;
class function DecodeSuffixes(Value: Integer): TTriggerActions;
procedure LoadFromDataBase(Q: TFIBQuery);
protected
procedure GenerateObjectDDL(Stream: TFastStringStream); override;
procedure SaveFakeDDL(Stream: TFastStringStream); // For Views
procedure SaveAlterDDL(Stream: TFastStringStream);
public
class function IsSubObject:boolean; override;
property Prefix: TTriggerType read FPrefix;
property Suffix: TTriggerActions read FSuffix;
property Position: Smallint read FPosition;
property Active: Boolean read FActive;
property Source: string read FSource;
end;
TMetaTableTrigger=class(TCustomMetaTrigger)
public
class function ClassIndex:integer; override;
end;
TMetaViewTrigger=class(TCustomMetaTrigger)
public
class function ClassIndex:integer; override;
end;
TMetaDBTrigger=class(TCustomMetaTrigger)
public
class function ClassIndex:integer; override;
class function IsSubObject:boolean; override;
end;
TMetaTable = class(TCustomMetaObject)
private
FRelationType:integer;
function GetFields(const Index: Integer): TMetaTableField;
function GetFieldsCount: Integer;
procedure LoadFromDataBase(QNames, QFields: TFIBQuery; QCharset:TFIBQuery; QPrimary,
QIndex, QForeign, QCheck, QTrigger: TFIBQuery; ChildTypes: TTableChildTypes);
function FindFieldIndex(const Name: string): Integer;
function GetUniques(const Index: Integer): TMetaUniqueConstraint;
function GetUniquesCount: Integer;
function GetPrimaryKey: TMetaPrimaryKey;
function GetPrimaryKeyExist: boolean;
function GetIndices(const Index: Integer): TMetaIndex;
function GetIndicesCount: Integer;
function GetForeign(const Index: Integer): TMetaForeignKey;
function GetForeignCount: Integer;
function GetChecks(const Index: Integer): TMetaCheckConstraint;
function GetChecksCount: Integer;
function GetTriggers(const Index: Integer): TCustomMetaTrigger;
function GetTriggersCount: Integer;
function GetGrants(const Index: Integer): TCustomMetaGrant;
function GetGrantsCount: Integer;
protected
procedure GenerateObjectDDL(Stream: TFastStringStream); override;
procedure GenerateDDLTextOnlyTable(Stream: TFastStringStream);
public
constructor Create(AOwner: TCustomMetaObject;aName:string=''); override;
class function ClassIndex:integer; override;
function FindFieldName(const Name: string): TMetaTableField;
procedure GenerateDDLText(Stream: TFastStringStream); override;
property Fields[const Index: Integer]: TMetaTableField read GetFields;
property FieldsCount: Integer read GetFieldsCount;
property PrimaryKey: TMetaPrimaryKey read GetPrimaryKey;
property PrimaryKeyExist: boolean read GetPrimaryKeyExist;
property Uniques[const Index: Integer]: TMetaUniqueConstraint read GetUniques;
property UniquesCount: Integer read GetUniquesCount;
property Indices[const Index: Integer]: TMetaIndex read GetIndices;
property IndicesCount: Integer read GetIndicesCount;
property Foreign[const Index: Integer]: TMetaForeignKey read GetForeign;
property ForeignCount: Integer read GetForeignCount;
property Checks[const Index: Integer]: TMetaCheckConstraint read GetChecks;
property ChecksCount: Integer read GetChecksCount;
property Triggers[const Index: Integer]: TCustomMetaTrigger read GetTriggers;
property TriggersCount: Integer read GetTriggersCount;
end;
TMetaView = class(TCustomMetaObject)
private
FSource: string;
function GetFields(const Index: Integer): TMetaField;
function GetFieldsCount: Integer;
function GetTriggers(const Index: Integer): TCustomMetaTrigger;
function GetTriggersCount: Integer;
function GetGrants(const Index: Integer): TCustomMetaGrant;
function GetGrantsCount: Integer;
procedure LoadFromDataBase(QName, QFields, QTriggers: TFIBQuery;
QCharset:TFIBQuery; ChildTypes: TViewChildTypes);
protected
procedure GenerateObjectDDL(Stream: TFastStringStream); override;
public
constructor Create(AOwner: TCustomMetaObject;aName:string=''); override;
class function ClassIndex:integer; override;
procedure GenerateDDLText(Stream: TFastStringStream); override;
property Source: string read FSource;
property Fields[const Index: Integer]: TMetaField read GetFields;
property FieldsCount: Integer read GetFieldsCount;
property Triggers[const Index: Integer]: TCustomMetaTrigger read GetTriggers;
property TriggersCount: Integer read GetTriggersCount;
end;
TMetaProcedure = class(TCustomMetaObject)
private
FSource: string;
FPackageName:string;
procedure LoadFromDataBase(QNames, QFields: TFIBQuery; QCharset: TFIBQuery;
CanUseParamDomain,CanUseProcParamRelation:boolean );
function GetInputFields(const Index: Integer): TMetaProcInField;
function GetInputFieldsCount: Integer;
function GetOutputFields(const Index: Integer): TMetaProcOutField;
function GetOutputFieldsCount: Integer;
function GetGrants(const Index: Integer): TCustomMetaGrant;
function GetGrantsCount: Integer;
procedure InternalSaveToDDL(Stream: TFastStringStream; Operation: string);
procedure SaveToPostDDL(Stream: TFastStringStream);
procedure SaveToAlterDDL(Stream: TFastStringStream);
protected
procedure GenerateObjectDDL(Stream: TFastStringStream); override;
public
constructor Create(AOwner: TCustomMetaObject;aName:string=''); override;
class function ClassIndex:integer; override;
property Source: string read FSource;
property InputFields[const Index: Integer]: TMetaProcInField read GetInputFields;
property InputFieldsCount: Integer read GetInputFieldsCount;
property OutputFields[const Index: Integer]: TMetaProcOutField read GetOutputFields;
property OutputFieldsCount: Integer read GetOutputFieldsCount;
property PackageName:string read FPackageName;
end;
TMetaStoredFunc = class(TCustomMetaObject)
private
FPackageName:string;
FSource: string;
function GetInputFields(const Index: Integer): TMetaProcInField;
function GetInputFieldsCount: Integer;
procedure LoadFromDataBase(QNames, QFields: TFIBQuery; QCharset: TFIBQuery );
procedure InternalSaveToDDL(Stream: TFastStringStream; Operation: string);
function GetReturn: TMetaProcOutField;
protected
procedure SaveEmptyDDL(Stream: TFastStringStream);
procedure SaveAlterDDL(Stream: TFastStringStream);
procedure GenerateObjectDDL(Stream: TFastStringStream); override;
public
constructor Create(AOwner: TCustomMetaObject;aName:string=''); override;
class function ClassIndex:integer; override;
property Source: string read FSource;
property InputFields[const Index: Integer]: TMetaProcInField read GetInputFields;
property InputFieldsCount: Integer read GetInputFieldsCount;
property PackageName:string read FPackageName;
property Return: TMetaProcOutField read GetReturn;
end;
TMetaPackage = class(TCustomMetaObject)
private
FSpec: string;
FBody: string;
procedure LoadFromDataBase(QNames: TFIBQuery );
procedure SaveSpecDDL(Stream: TFastStringStream);
procedure SaveBodyDDL(Stream: TFastStringStream);
protected
procedure GenerateObjectDDL(Stream: TFastStringStream); override;
public
class function ClassIndex:integer; override;
property SpecSource: string read FSpec;
property BodySource: string read FBody;
end;
TMetaException = class(TCustomMetaObject)
private
FMessage: string;
FNumber: Integer;
procedure LoadFromDataBase(QName: TFIBQuery);
protected
procedure GenerateObjectDDL(Stream: TFastStringStream); override;
public
class function ClassIndex:integer; override;
property Message: string read FMessage;
property Number: Integer read FNumber;
end;
TMetaUDFField = class(TCustomMetaField)
private
FPosition: Smallint;
FMechanism: Smallint;
procedure LoadFromDataBase(QField,QCharset:TFIBQuery); override;
protected
procedure GenerateObjectDDL(Stream: TFastStringStream); override;
public
class function ClassIndex:integer; override;
property Position: Smallint read FPosition;
property Mechanism: Smallint read FMechanism;
end;
TMetaUDF = class(TCustomMetaObject)
private
FModule: string;
FEntry: string;
FReturn: Smallint;
procedure LoadFromDataBase(QNames, QFields: TFIBQuery; QCharset: TFIBQuery);
function GetFields(const Index: Integer): TMetaUDFField;
function GetFieldsCount: Integer;
protected
procedure GenerateObjectDDL(Stream: TFastStringStream); override;
public
constructor Create(AOwner: TCustomMetaObject;aName:string=''); override;
class function ClassIndex:integer; override;
property Module: string read FModule;
property Entry: string read FEntry;
property Return: Smallint read FReturn;
property Fields[const Index: Integer]: TMetaUDFField read GetFields;
property FieldsCount: Integer read GetFieldsCount;
end;
TMetaRole = class(TCustomMetaObject)
private
FOwner: string;
protected
procedure LoadFromDataBase(QName: TFIBQuery);
procedure GenerateObjectDDL(Stream: TFastStringStream); override;
function GetGrants(const Index: Integer): TCustomMetaGrant;
function GetGrantsCount: Integer;
public
constructor Create(AOwner: TCustomMetaObject;aName:string=''); override;
class function ClassIndex:integer; override;
property Owner: string read FOwner;
end;
TMetaDataBase = class(TCustomMetaObject)
private
FInternalTransaction:TFIBTransaction;
private
// DBInfo
FPageSize:integer;
FDefaultCharset:string;
FConnectCharset:string;
FClientLib:string;
FProcParamDomainSupports:boolean;
FProcParamRelationSupports:boolean;
FIdentityFieldsSupports:boolean;
FStoredFunctionsSupports:boolean;
FPackagesSupports:boolean;
FTabRelTypeSupports:boolean;
FSQLDialect :integer;
//
FLoadObjects: TDBObjectTypes;
FLoadTableChilds: TTableChildTypes;
FLoadViewChilds: TViewChildTypes;
FSysInfos: Boolean;
//Flags
FNamesLoaded:boolean;
FDDLTextOptions:TDDLTextOptions;
FOnLoadMetaData:TNotifyLoadMetaData;
function GetGenerators(const Index: Integer): TMetaGenerator;
function GetGeneratorsCount: Integer;
function GetTables(const Index: Integer): TMetaTable;
function GetTablesCount: Integer;
function FindTableIndex(const TableName: string): Integer;
function FindDomainIndex(const DomainName: string): Integer;
function GetViews(const Index: Integer): TMetaView;
function GetViewsCount: Integer;
function GetDomains(const Index: Integer): TMetaDomain;
function GetDomainsCount: Integer;
function GetProcedures(const Index: Integer): TMetaProcedure;
function GetProceduresCount: Integer;
function GetFunctionsCount: Integer;
function GetFunctions(const Index: Integer): TMetaStoredFunc;
function GetExceptions(const Index: Integer): TMetaException;
function GetExceptionsCount: Integer;
function GetUDFS(const Index: Integer): TMetaUDF;
function GetUDFSCount: Integer;
function GetRoles(const Index: Integer): TMetaRole;
function GetRolesCount: Integer;
function GetPackageCount: Integer;
function GetPackages(const Index: Integer): TMetaPackage;
public
constructor Create(AOwner: TCustomMetaObject;aName:string=''); override;
destructor Destroy; override;
class function ClassIndex:integer; override;
procedure Clear;
procedure LoadFromDatabase(DB: TFIBDatabase; OnlyNames:boolean = False);
procedure GenerateDDLText(Stream: TFastStringStream);override;
procedure ExtGenerateDDLText(Stream: TFastStringStream;
Options:TDDLTextOptions=[dtoUseCreateDB,dtoUseSetTerm]);
function GetDBObject(DB:TFIBDatabase; ObjectType:TDBObjectType; const ObjectName:string; ForceLoad:boolean=True):TCustomMetaObject;
property Generators[const Index: Integer]: TMetaGenerator read GetGenerators;
property GeneratorsCount: Integer read GetGeneratorsCount;
property Tables[const Index: Integer]: TMetaTable read GetTables;
property TablesCount: Integer read GetTablesCount;
property Packages[const Index: Integer]: TMetaPackage read GetPackages;
property PackageCount: Integer read GetPackageCount;
property Views[const Index: Integer]: TMetaView read GetViews;
property ViewsCount: Integer read GetViewsCount;
property Domains[const Index: Integer]: TMetaDomain read GetDomains;
property DomainsCount: Integer read GetDomainsCount;
property Procedures[const Index: Integer]: TMetaProcedure read GetProcedures;
property ProceduresCount: Integer read GetProceduresCount;
property Exceptions[const Index: Integer]: TMetaException read GetExceptions;
property ExceptionsCount: Integer read GetExceptionsCount;
property UDFS[const Index: Integer]: TMetaUDF read GetUDFS;
property UDFSCount: Integer read GetUDFSCount;
property Roles[const Index: Integer]: TMetaRole read GetRoles;
property RolesCount: Integer read GetRolesCount;
property SysInfo:boolean read FSysInfos write FSysInfos;
property ViewInfo: TViewChildTypes read FLoadViewChilds write FLoadViewChilds default DefViewChilds;
property DBObjects: TDBObjectTypes read FLoadObjects write FLoadObjects default DefObjects;
property TableInfo: TTableChildTypes read FLoadTableChilds write FLoadTableChilds default DefTableChilds;
property DDLTextOptions:TDDLTextOptions read FDDLTextOptions write FDDLTextOptions;
property OnLoadMetaData:TNotifyLoadMetaData read FOnLoadMetaData write FOnLoadMetaData;
end;
TpFIBDBSchemaExtract=class;
TLoadOptions= class(TPersistent)
private
FLoadObjects: TDBObjectTypes;
FLoadTableChilds: TTableChildTypes;
FLoadViewChilds: TViewChildTypes;
FIncSysInfo: Boolean;
public
constructor Create;
published
property SysInfo:boolean read FIncSysInfo write FIncSysInfo default False;
property ViewInfo: TViewChildTypes read FLoadViewChilds write FLoadViewChilds default DefViewChilds;
property DBObjects: TDBObjectTypes read FLoadObjects write FLoadObjects default DefObjects;
property TableInfo: TTableChildTypes read FLoadTableChilds write FLoadTableChilds default DefTableChilds;
end;
TpFIBDBSchemaExtract=class (TComponent)
protected
FDatabase:TFIBDatabase;
FOnLoadMetaData:TNotifyLoadMetaData;
FDDLTextOptions:TDDLTextOptions;
FLoadOptions:TLoadOptions;
FMetaDatabase :TMetaDataBase;
FFullLoaded:boolean;
protected
function GetDomains(const Index: Integer): TMetaDomain;
function GetDomainsCount: Integer;
function GetExceptions(const Index: Integer): TMetaException;
function GetExceptionsCount: Integer;
function GetGenerators(const Index: Integer): TMetaGenerator;
function GetGeneratorsCount: Integer;
function GetProcedures(const Index: Integer): TMetaProcedure;
function GetProceduresCount: Integer;
function GetFunctions(const Index: Integer): TMetaStoredFunc;
function GetFunctionsCount: Integer;
function GetTables(const Index: Integer): TMetaTable;
function GetTablesCount: Integer;
function GetUDFS(const Index: Integer): TMetaUDF;
function GetUDFSCount: Integer;
function GetViews(const Index: Integer): TMetaView;
function GetViewsCount: Integer;
procedure SetDatabase(const Value: TFIBDatabase);
procedure SetLoadOptions(const Value: TLoadOptions);
function GetNamesLoaded: boolean;
private
function GetPackageCount: Integer;
function GetPackages(const Index: Integer): TMetaPackage;
protected
procedure Notification(AComponent: TComponent;
Operation: TOperation); override;
procedure DoOnLoadMetaData(Sender:TObject; const Message:string; var Stop:boolean);
published
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
procedure LoadMetaData(OnlyNames :boolean= False);
procedure LoadObjectNames;
function GetDDLText:string;
function GetMetaDataBase:TMetaDataBase;
procedure Clear;
function ObjectByName(ObjectType:TDBObjectType; const ObjectName:string; ForceLoad:boolean=True): TCustomMetaObject ;
function GetObjectDDL(ObjectType:TDBObjectType; const ObjectName:string; ForceLoad:boolean=True): string ;
property Generators[const Index: Integer]: TMetaGenerator read GetGenerators;
property GeneratorsCount: Integer read GetGeneratorsCount;
property Tables[const Index: Integer]: TMetaTable read GetTables;
property TablesCount: Integer read GetTablesCount;
property Packages[const Index: Integer]: TMetaPackage read GetPackages;
property PackagesCount: Integer read GetPackageCount;
property Views[const Index: Integer]: TMetaView read GetViews;
property ViewsCount: Integer read GetViewsCount;
property Domains[const Index: Integer]: TMetaDomain read GetDomains;
property DomainsCount: Integer read GetDomainsCount;
property Procedures[const Index: Integer]: TMetaProcedure read GetProcedures;
property ProceduresCount: Integer read GetProceduresCount;
property Functions[const Index: Integer]: TMetaStoredFunc read GetFunctions;
property FunctionsCount: Integer read GetFunctionsCount;
property Exceptions[const Index: Integer]: TMetaException read GetExceptions;
property ExceptionsCount: Integer read GetExceptionsCount;
property UDFS[const Index: Integer]: TMetaUDF read GetUDFS;
property UDFSCount: Integer read GetUDFSCount;
property MetaDataLoaded:boolean read FFullLoaded;
property NamesLoaded :boolean read GetNamesLoaded;
published
property Database:TFIBDatabase read FDatabase write SetDatabase;
property DDLTextOptions:TDDLTextOptions read FDDLTextOptions write FDDLTextOptions;
property LoadOptions:TLoadOptions read FLoadOptions write SetLoadOptions;
property OnLoadMetaData:TNotifyLoadMetaData read FOnLoadMetaData write FOnLoadMetaData;
end;
procedure FullExtractDDL(DB:TFIBDatabase; Dest: TStrings);
implementation
uses StdFuncs;
procedure FullExtractDDL(DB:TFIBDatabase; Dest: TStrings);
var
Extractor:TMetaDataBase;
begin
Extractor:=TMetaDataBase.Create(nil,'');
try
Extractor.LoadFromDatabase(DB);
Dest.Text:=Extractor.AsDDL
finally
Extractor.Free;
end;
end;
function CutDefaultValue(const Source:string):string;
begin
Result:=Trim(Source);
if Result <> '' then
Result := Copy(Result, 9,
System.Length(Result) - 8);
end;
function SavedMetaObjectName(const MetaObjectName:string):string;
begin
if (Length(MetaObjectName)>0) and (MetaObjectName[1]='"') then
Result:=FastCopy(MetaObjectName,2,Length(MetaObjectName)-2)
else
Result:=MetaObjectName
end;
const
TriggerPrefixes: array [TTriggerType] of PAnsiChar =
('BEFORE', 'AFTER','ON');
TriggerSuffixes: array [TTriggerAction] of PAnsiChar =
('INSERT', 'UPDATE', 'DELETE',
'CONNECT','DISCONNECT','TRANSACTION START','TRANSACTION COMMIT','TRANSACTION ROLLBACK'
);
FieldTypes: array [TFIBFieldType] of string =
('', 'NUMERIC', 'CHAR', 'VARCHAR', 'CSTRING', 'SMALLINT', 'INTEGER', 'QUAD',
'FLOAT', 'DOUBLE PRECISION', 'TIMESTAMP', 'BLOB', 'BLOBID', 'DATE', 'TIME',
'BIGINT' , 'BOOLEAN' );
QRYDB_INFO=
'SELECT RDB$CHARACTER_SET_NAME FROM RDB$DATABASE DBP ';
QRY_PACKAGE_SUPPORTS=
' SELECT 1 FROM RDB$RELATIONS RF WHERE RF.RDB$RELATION_NAME = ''RDB$PACKAGES''';
QRY_PROC_PARAMDOMAINS_SUPPORTS=
'SELECT 1 AS RESULT FROM RDB$DATABASE RD WHERE EXISTS ('+
' SELECT RF.*'+
' FROM RDB$RELATION_FIELDS RF'+
' WHERE (RF.RDB$RELATION_NAME = ''RDB$PROCEDURE_PARAMETERS'') AND'+
' (RF.RDB$FIELD_NAME = ''RDB$PARAMETER_MECHANISM'')'+
' )';
QRY_PROC_PARAMRELATION_SUPPORTS=
'SELECT 1 AS RESULT FROM RDB$DATABASE RD WHERE EXISTS ('+
' SELECT RF.*'+
' FROM RDB$RELATION_FIELDS RF'+
' WHERE (RF.RDB$RELATION_NAME = ''RDB$PROCEDURE_PARAMETERS'') AND'+
' (RF.RDB$FIELD_NAME = ''RDB$RELATION_NAME'')'+
' )';
QRY_TAB_RELATION_TYPE_SUPPORTS=
'SELECT 1 AS RESULT FROM RDB$DATABASE RD WHERE EXISTS ('+
' SELECT RF.*'+
' FROM RDB$RELATION_FIELDS RF'+
' WHERE (RF.RDB$RELATION_NAME = ''RDB$RELATIONS'') AND'+
' (RF.RDB$FIELD_NAME = ''RDB$RELATION_TYPE'')'+
' )';
QRY_FLD_BY_IDENTITY_SUPPORTS=
'SELECT 1 AS RESULT FROM RDB$DATABASE RD WHERE EXISTS ('+
'SELECT RF.*'+
' FROM RDB$RELATION_FIELDS RF'+
' WHERE (RF.RDB$RELATION_NAME = ''RDB$RELATION_FIELDS'')'+
' AND (RF.RDB$FIELD_NAME = ''RDB$IDENTITY_TYPE'')'+
' )';
QRY_STORED_FUNCS_SUPPORTS=
'SELECT 1 AS RESULT FROM RDB$DATABASE RD WHERE EXISTS ('+
'SELECT RF.*'+
' FROM RDB$RELATION_FIELDS RF'+
' WHERE (RF.RDB$RELATION_NAME = ''RDB$FUNCTIONS'')'+
' AND (RF.RDB$FIELD_NAME = ''RDB$FUNCTION_SOURCE'')'+
' )';
//FB3^^^^
QRYGenerators =
'SELECT RDB$GENERATOR_NAME FROM RDB$GENERATORS GEN WHERE ' +
'(NOT GEN.RDB$GENERATOR_NAME STARTING WITH ''RDB$'') AND ' +
'(NOT GEN.RDB$GENERATOR_NAME STARTING WITH ''SQL$'') AND ' +
'((GEN.RDB$SYSTEM_FLAG IS NULL) OR (GEN.RDB$SYSTEM_FLAG <> 1)) ' +
'ORDER BY GEN.RDB$GENERATOR_NAME';
QRYTables =
'SELECT REL.RDB$RELATION_NAME FROM RDB$RELATIONS REL WHERE ' +
'(REL.RDB$SYSTEM_FLAG <> 1 OR REL.RDB$SYSTEM_FLAG IS NULL) AND ' +
'(NOT REL.RDB$FLAGS IS NULL) AND ' +
'(REL.RDB$VIEW_BLR IS NULL) AND ' +
'(REL.RDB$SECURITY_CLASS STARTING WITH ''SQL$'') ' +
'ORDER BY REL.RDB$RELATION_NAME';
QRYTablesRel =
'SELECT REL.RDB$RELATION_NAME,REL.RDB$RELATION_TYPE FROM RDB$RELATIONS REL WHERE ' +
'(REL.RDB$SYSTEM_FLAG <> 1 OR REL.RDB$SYSTEM_FLAG IS NULL) AND ' +
'(NOT REL.RDB$FLAGS IS NULL) AND ' +
'(REL.RDB$VIEW_BLR IS NULL) AND ' +
'(REL.RDB$SECURITY_CLASS STARTING WITH ''SQL$'') ' +
'ORDER BY REL.RDB$RELATION_NAME';
QRYSysTables =
'SELECT REL.RDB$RELATION_NAME FROM RDB$RELATIONS REL ' +
'WHERE REL.RDB$VIEW_BLR IS NULL ORDER BY REL.RDB$RELATION_NAME';