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fcl-db: sqlite: cleanup + formatting

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(use already defined constant JulianEpoch instead of own;
 use UnicodeCompareStr instead of WideCompareStr)

git-svn-id: trunk@22981 -
This commit is contained in:
lacak 2012-11-12 09:57:28 +00:00
parent 1698673744
commit 56350aec8a
1 changed files with 28 additions and 30 deletions
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58
packages/fcl-db/src/sqldb/sqlite/sqlite3conn.pp
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@ -86,7 +86,7 @@ type
procedure LoadBlobIntoBuffer(FieldDef: TFieldDef;ABlobBuf: PBufBlobField; cursor: TSQLCursor; ATransaction : TSQLTransaction); override;
// New methods
procedure execsql(const asql: string);
procedure UpdateIndexDefs(IndexDefs : TIndexDefs;TableName : string); override; // Differs from SQLDB.
procedure UpdateIndexDefs(IndexDefs : TIndexDefs; TableName : string); override;
function RowsAffected(cursor: TSQLCursor): TRowsCount; override;
function GetSchemaInfoSQL(SchemaType : TSchemaType; SchemaObjectName, SchemaPattern : string) : string; override;
function StrToStatementType(s : string) : TStatementType; override;
@ -122,8 +122,10 @@ implementation
uses
dbconst, sysutils, dateutils, FmtBCD;
{$IF NOT DECLARED(JulianEpoch)} // sysutils/datih.inc
const
JulianDateShift = 2415018.5; //distance from "julian day 0" (January 1, 4713 BC 12:00AM) to "1899-12-30 00:00AM"
JulianEpoch = TDateTime(-2415018.5); // "julian day 0" is January 1, 4713 BC 12:00AM
{$ENDIF}
type
@ -139,7 +141,7 @@ type
fparambinding: array of Integer;
procedure checkerror(const aerror: integer);
procedure bindparams(AParams : TParams);
Procedure Prepare(Buf : String; APArams : TParams);
Procedure Prepare(Buf : String; AParams : TParams);
Procedure UnPrepare;
Procedure Execute;
Function Fetch : Boolean;
@ -178,37 +180,34 @@ Procedure TSQLite3Cursor.bindparams(AParams : TParams);
Var
I : Integer;
P : TParam;
pc : pchar;
str1: string;
cu1: currency;
do1: double;
parms : array of Integer;
wstr1: widestring;
begin
for I:=1 to high(fparambinding)+1 do
for I:=1 to high(fparambinding)+1 do
begin
P:=aparams[fparambinding[I-1]];
if P.isnull then
P:=AParams[fparambinding[I-1]];
if P.IsNull then
checkerror(sqlite3_bind_null(fstatement,I))
else
case P.datatype of
ftinteger,
ftboolean,
ftsmallint: checkerror(sqlite3_bind_int(fstatement,I,p.asinteger));
ftword: checkerror(sqlite3_bind_int(fstatement,I,P.asword));
ftlargeint: checkerror(sqlite3_bind_int64(fstatement,I,P.aslargeint));
ftbcd,
ftfloat,
ftcurrency:
ftInteger,
ftBoolean,
ftSmallint: checkerror(sqlite3_bind_int(fstatement,I,P.AsInteger));
ftWord: checkerror(sqlite3_bind_int(fstatement,I,P.AsWord));
ftLargeint: checkerror(sqlite3_bind_int64(fstatement,I,P.AsLargeint));
ftBcd,
ftFloat,
ftCurrency:
begin
do1:= P.AsFloat;
checkerror(sqlite3_bind_double(fstatement,I,do1));
end;
ftdatetime,
ftdate,
fttime: begin
do1:= P.AsFloat + JulianDateShift;
ftDateTime,
ftDate,
ftTime: begin
do1:= P.AsFloat - JulianEpoch;
checkerror(sqlite3_bind_double(fstatement,I,do1));
end;
ftFMTBcd:
@ -216,9 +215,9 @@ begin
str1:=BCDToStr(P.AsFMTBCD, Fconnection.FSQLFormatSettings);
checkerror(sqlite3_bind_text(fstatement, I, PChar(str1), length(str1), sqlite3_destructor_type(SQLITE_TRANSIENT)));
end;
ftstring,
ftString,
ftFixedChar,
ftmemo: begin // According to SQLite documentation, CLOB's (ftMemo) have the Text affinity
ftMemo: begin // According to SQLite documentation, CLOB's (ftMemo) have the Text affinity
str1:= p.asstring;
checkerror(sqlite3_bind_text(fstatement,I,pcharstr(str1), length(str1),@freebindstring));
end;
@ -239,12 +238,12 @@ begin
end;
end;
Procedure TSQLite3Cursor.Prepare(Buf : String; APArams : TParams);
Procedure TSQLite3Cursor.Prepare(Buf : String; AParams : TParams);
begin
if assigned(aparams) and (aparams.count > 0) then
buf := aparams.parsesql(buf,false,false,false,psinterbase,fparambinding);
checkerror(sqlite3_prepare(fhandle,pchar(buf),length(buf),@fstatement,@ftail));
if assigned(AParams) and (AParams.Count > 0) then
Buf := AParams.ParseSQL(Buf,false,false,false,psInterbase,fparambinding);
checkerror(sqlite3_prepare(fhandle,pchar(Buf),length(Buf),@fstatement,@ftail));
FPrepared:=True;
end;
@ -414,7 +413,6 @@ var
FN,FD : string;
ft1 : tfieldtype;
size1, size2 : integer;
ar1 : TStringArray;
fi : integer;
st : psqlite3_stmt;
@ -621,7 +619,7 @@ begin
begin
PDateTime(buffer)^ := sqlite3_column_double(st,fnum);
if PDateTime(buffer)^ > 1721059.5 {Julian 01/01/0000} then
PDateTime(buffer)^ := PDateTime(buffer)^ - JulianDateShift; //backward compatibility hack
PDateTime(buffer)^ := PDateTime(buffer)^ + JulianEpoch; //backward compatibility hack
end;
ftFixedChar,
ftString: begin
@ -956,7 +954,7 @@ var S1, S2: AnsiString;
begin
SetString(S1, data1, len1);
SetString(S2, data2, len2);
Result := WideCompareStr(UTF8Decode(S1), UTF8Decode(S2));
Result := UnicodeCompareStr(UTF8Decode(S1), UTF8Decode(S2));
end;
procedure TSQLite3Connection.CreateCollation(const CollationName: string;