Программное обеспечение базы данный "Экологический мониторинг"

}

} __finally

{

delete mrT;

}

}

//---------------------------------------------------------------------------

__fastcall TfrmUniForm::TfrmUniForm(TComponent* Owner, TMenuItem* itm, AnsiString formname)

: TForm(Owner)

{

this->itm = itm;

uid = "";

link = false;

desc = new TformDescription();

slv = NULL; lnk = NULL;

desc->formname = formname;

form->dsc = desc;

parentform = NULL;

if (itm) itm->Enabled = false;

accept = false;

btnlst = new TList();

fltlst = new TList();

fldlst = new TList();

UploadInfo();

}

//---------------------------------------------------------------------------

void __fastcall TfrmUniForm::UploadInfo()

{

UploadMetaInfo(desc, desc->formname);

this->Caption = desc->title;

form->editpanel->Caption = desc->edittitle;

form->dbgBrowse->Columns->Items[0]->FieldName = desc->listfield;

form->dbgBrowse->Columns->Items[0]->Title->Caption = "Название";

if (desc->readonly) { form->tblBrowse->ReadOnly = true; }

}

//---------------------------------------------------------------------------

void __fastcall TfrmUniForm::ReorderFilters()

{

for (int r=0; r<fltlst->Count; r++)

{

TfrmFilter* fr = ((TfrmFilter*)((TfltAddInfo*)fltlst->Items[r])->pntr);

fr->Align = alNone;

fr->Visible = false;

}

for (int r=0; r<fltlst->Count; r++)

{

TfrmFilter* fr = ((TfrmFilter*)((TfltAddInfo*)fltlst->Items[r])->pntr);

fr->Visible = true;

fr->Align = alTop;

}

}

//---------------------------------------------------------------------------

void __fastcall TfrmUniForm::Execute()

{

if (link)

{

form->Go();

// запомним мета-информацию по полям

int cnt = form->tblBrowse->Fields->Count;

TField **flms = new TField*[cnt];

for(int i = 0; i < cnt; i++)

{

TFieldType dtype = form->tblBrowse->Fields->Fields[i]->DataType;

if (dtype == ftInteger) flms[i] = new TIntegerField(this);

if (dtype == ftString) flms[i] = new TStringField(this);

if (dtype == ftFloat) flms[i] = new TFloatField(this);

if (dtype == ftDate) flms[i] = new TDateField(this);

if (dtype == ftDateTime) flms[i] = new TDateTimeField(this);

if (dtype == ftTime) flms[i] = new TTimeField(this);

flms[i]->Required = form->tblBrowse->Fields->Fields[i]->Required;

flms[i]->ReadOnly = form->tblBrowse->Fields->Fields[i]->ReadOnly;

flms[i]->FieldName = form->tblBrowse->Fields->Fields[i]->FieldName;

flms[i]->Size = form->tblBrowse->Fields->Fields[i]->Size;

flms[i]->Tag = (int)dtype;

}

form->tblBrowse->Close();

for(int i = 0; i < cnt; i++) flms[i]->DataSet = form->tblBrowse;

// добавим lookup-поле

TStringField *fld = new TStringField(form->tblBrowse);

fld->ReadOnly = true;

fld->FieldName = desc->listfield;

fld->FieldKind = fkLookup;

AnsiString tmp;

tmp = lnk->linktofield; StrRpl(tmp, ",", ";");

fld->KeyFields = tmp;

tmp = slv->keyfield; StrRpl(tmp, ",", ";");

fld->LookupKeyFields = tmp;

fld->LookupDataSet = form->tblAdd;

fld->LookupResultField = slv->listfield;

fld->Lookup = true;

if (form->tblAdd->Active)

fld->Size = form->tblAdd->FieldByName(slv->listfield)->Size;

fld->DataSet = form->tblBrowse;

form->dbgBrowse->Columns->Items[0]->FieldName = fld->FieldName;

form->dbgBrowse->Columns->Items[0]->Title->Caption = "Название";

}

AnsiString strw;

if (!accept || !desc->hideonaccept)

{

strw = "select * from buttons where parentform = '" + desc->formname + "' ";

if (!desc->takefieldsfrom.IsEmpty()) strw += "or parentform = '" + desc->takefieldsfrom + "' ";

strw += "order by sortorder desc";

if (SELECT(mqrA, strw))

{

do

{

TToolButton* btn = form->AddLinkBtn(mqrA->FieldByName("title")->AsString, CommonButtonClick);

TbtnAddInfo *inf = new TbtnAddInfo();

inf->childform = mqrA->FieldByName("childform")->AsString;

inf->childtitle = mqrA->FieldByName("childtitle")->AsString;

inf->linkform = mqrA->FieldByName("linkform")->AsString;

inf->linktofield = mqrA->FieldByName("linktofield")->AsString;

inf->linkfromfield = mqrA->FieldByName("linkfromfield")->AsString;

inf->type = mqrA->FieldByName("type")->AsString;

inf->sql = mqrA->FieldByName("sql")->AsString;

btn->Tag = btnlst->Add(inf);

mqrA->Next();

} while (!mqrA->Eof);

}

}

strw = "select * from filters where parentform = '" + desc->formname + "' ";

if (!desc->takefieldsfrom.IsEmpty()) strw += "or parentform = '" + desc->takefieldsfrom + "' ";

strw += "order by sortorder desc";

if (SELECT(mqrA, strw))

{

do

{

TfrmFilter* flt = form->AddFilter(mqrA->FieldByName("title")->AsString, CommonFilterChange, CommonFilterClear);

TfltAddInfo *inf = new TfltAddInfo();

inf->childform = mqrA->FieldByName("childform")->AsString;

inf->filtersql = mqrA->FieldByName("filtersql")->AsString;

inf->sql = mqrA->FieldByName("sql")->AsString;

inf->type = mqrA->FieldByName("type")->AsString;

inf->name = mqrA->FieldByName("name")->AsString;

inf->code = mqrA->FieldByName("code")->AsInteger;

inf->logic = mqrA->FieldByName("logic")->AsInteger;

inf->pntr = flt;

inf->retid = "";

if (inf->logic == 1) form->FilterBy("a" + IntToStr(inf->code), "(1=0)");

if (lnk)

if (inf->childform == lnk->parentform)

{

inf->retid = lnk->linkvalue;

inf->rettitle = lnk->linktitle;

flt->edt->Text = lnk->linktitle;

// в uid возвращается выбранный код

AnsiString str = inf->filtersql;

if (retid.IsEmpty()) str="";

else StrRpl(str, "%1", lnk->linkvalue);

form->FilterBy("a" + IntToStr(inf->code), str);

flt->btn->Enabled = false;

flt->btnclr->Enabled = false;

flt->Enabled = false;

}

flt->Tag = fltlst->Add(inf);

mqrA->Next();

} while (!mqrA->Eof);

}

if (!accept || !desc->hideonaccept)

{

// подгрузка полей БД из имеющейся метаинформации

strw = "select * from fields where parentform = '" + desc->formname + "' ";

if (!desc->takefieldsfrom.IsEmpty()) strw += "or parentform = '" + desc->takefieldsfrom + "' ";

strw += "order by sortorder";

if (SELECT(mqrA, strw))

{

do

{

// сразу создадим все формы полей, инициализируем их, а также оставим ВСЮ семантику в этих формах

TfieldAddInfo *inf = new TfieldAddInfo();

inf->fieldname = mqrA->FieldByName("fieldname")->AsString;

inf->title = mqrA->FieldByName("title")->AsString;

inf->type = mqrA->FieldByName("type")->AsString;

inf->childform = mqrA->FieldByName("childform")->AsString;

inf->sql = mqrA->FieldByName("sql")->AsString;

inf->ReadOnly = mqrA->FieldByName("readonly")->AsBoolean;

inf->isqbe = mqrA->FieldByName("isqbe")->AsBoolean;

inf->value = mqrA->FieldByName("value")->AsString.Trim();

inf->code = mqrA->FieldByName("code")->AsInteger;

if (inf->type == (AnsiString)"T")

{

TfrmeFT *fr = new TfrmeFT(this, form->dsrcBrowse, inf);

fr->Parent = form->editarea; fr->Name = ""; fr->Align = alTop; inf->form = fr;

}

if ((inf->type == (AnsiString)"I") || (inf->type == (AnsiString)"S"))

{

TfrmeFV *fr = new TfrmeFV(this, form->dsrcBrowse, inf);

fr->Parent = form->editarea; fr->Name = ""; fr->Align = alTop; inf->form = fr;

}

if (inf->type == (AnsiString)"C")

{

TfrmeFieldsN *fr = new TfrmeFieldsN(this, form->dsrcBrowse, inf);

fr->Parent = form->editarea; fr->Name = ""; fr->Align = alTop; inf->form = fr;

}

if (inf->type == (AnsiString)"F") // поле интерпетируется на этапе подстановки при New,

{ // а также для фильтрации (т.е. используется для

// реализации ограниченных наборов)

form->FilterBy("flt_" + inf->fieldname, inf->sql);

}

if (inf->type == (AnsiString)"L")

{

TfrmeList *fr = new TfrmeList(this, form->dsrcBrowse, inf);

if (SELECT(mqrB, "select * from fieldelements where parentfield = " +

mqrA->FieldByName("code")->AsString + " order by sortorder"))

{

do

{

fr->AddElement(mqrB->FieldByName("title")->AsString, mqrB->FieldByName("value")->AsString);

mqrB->Next();

} while (!mqrB->Eof);

fr->Go();

mqrB->Close();

}

fr->Parent = form->editarea; fr->Name = ""; fr->Align = alTop; inf->form = fr;

}

fldlst->Add(inf);

mqrA->Next();

} while (!mqrA->Eof);

}

mqrA->Close();

}

bool f = ((desc->type == (AnsiString)"T") && (!desc->parentfield.Trim().IsEmpty()));

form->spbTree->Visible = f;

form->dbnPlus->Visible = f;

form->SetTreeMode(f);

TuneFilters();

form->Go();

}

//---------------------------------------------------------------------------

void __fastcall TfrmUniForm::TuneFromBtn(TbtnAddInfo *lnkinfo, AnsiString linkvalue, AnsiString linktitle, AnsiString parentform)

{

if (!lnk) lnk = new TlnkFromBtn();

form->lnkb = lnk;

lnk->linkform = lnkinfo->linkform;

lnk->linktofield = lnkinfo->linktofield;

lnk->linkfromfield = lnkinfo->linkfromfield;

lnk->linkvalue = linkvalue;

lnk->linktitle = linktitle;

lnk->parentform = parentform;

}

//---------------------------------------------------------------------------

void __fastcall TfrmUniForm::TuneForLink()

{

link = true;

slv = new TformDescription();

UploadMetaInfo(slv, lnk->linkform);

form->slv = slv;

form->link = link;

desc->listfield = "add_lnkform_nam";

}

//---------------------------------------------------------------------------

void __fastcall TfrmUniForm::InitTblAdd()

{

// инициализация tblAdd

AnsiString str;

str = "select " + slv->listfield + ", " + slv->keyfield + " from " + slv->table;

form->tblAdd->SQL->Clear();

form->tblAdd->SQL->Add(str);

try

{

form->tblAdd->Close();

form->tblAdd->Open();

} catch(EOracleError &E)

{

ShowMessage(E.Message + ", запрос: '" + str + "'");

return;

}

}

//---------------------------------------------------------------------------

void __fastcall TfrmUniForm::TuneFilters()

{

if (!parentform) return;

TList* patfrm_fltlst = ((TfrmUniForm*)parentform)->fltlst;

TList* patfrm_fldlst = ((TfrmUniForm*)parentform)->fldlst;

if (patfrm_fltlst)

{

for (int r=0; r<fltlst->Count; r++)

for (int i=0; i<patfrm_fltlst->Count; i++)

{

TfltAddInfo* tm_r = ((TfltAddInfo*)(fltlst->Items[r]));

TfltAddInfo* tm_i = ((TfltAddInfo*)(patfrm_fltlst->Items[i]));

if (tm_r->name == tm_i->name)

{

tm_r->retid = tm_i->retid;

tm_r->rettitle = tm_i->rettitle;

TfrmFilter* src = ((TfrmFilter*)tm_r->pntr);

src->edt->Text = tm_i->rettitle;

// в uid возвращается выбранный код

AnsiString str = tm_r->filtersql;

if (retid.IsEmpty()) str="";

else StrRpl(str, "%1", retid);

form->FilterBy("a" + IntToStr(tm_r->code), str);

}

}

}

if (accept && patfrm_fldlst)

{

TfrmUniForm* uni = ((TfrmUniForm*)parentform);

if (!uni->form->tblBrowse->IsEmpty())

{

for (int r=0; r<patfrm_fldlst->Count; r++)

for (int i=0; i<fltlst->Count; i++)

{

TfieldAddInfo *fl = ((TfieldAddInfo*)patfrm_fldlst->Items[r]);

TfrmeFieldsN *tm_i = ((TfrmeFieldsN*)(fl->form));

TfltAddInfo *tm_r = ((TfltAddInfo*)(fltlst->Items[i]));

if ((fl->type == (AnsiString)"C") && (fl->fieldname == tm_r->name))

if (!uni->form->tblBrowse->FieldByName(fl->fieldname)->IsNull)

{

tm_r->retid = uni->form->tblBrowse->FieldByName(fl->fieldname)->AsString;

tm_r->rettitle = tm_i->name->Text;

TfrmFilter* src = ((TfrmFilter*)tm_r->pntr);

src->edt->Text = tm_i->name->Text;

// в uid возвращается выбранный код

AnsiString str = tm_r->filtersql;

if (retid.IsEmpty()) str="";

else StrRpl(str, "%1", retid);

form->FilterBy("a" + IntToStr(tm_r->code), str);

}

}

}

}

}

//---------------------------------------------------------------------------

void __fastcall TfrmUniForm::CommonButtonClick(TObject *Sender)

{

TbtnAddInfo* tm = ((TbtnAddInfo*)btnlst->Items[((TToolButton*)Sender)->Tag]);

if (form->tblBrowse->IsEmpty()) return;

// обработка настройки дочерней формы по нажатию кнопки контекстного перехода

AnsiString _title = tm->childtitle, _filter = tm->sql;

UseReplaces(_title, _filter);

bool s = (tm->type == (AnsiString)"S"), l = (tm->type == (AnsiString)"L");

if (!s && !l) return;

try

if (l) frm->TuneForLink();

{

ShowMessage(E.Message);

}

}

//---------------------------------------------------------------------------

void __fastcall TfrmUniForm::CommonFilterChange(TObject *Sender)

{

// обработка вызова дочерней формы по нажатию кнопки фильтра

TfrmFilter* src = ((TfrmFilter*)Sender);

TfltAddInfo* tm = ((TfltAddInfo*)fltlst->Items[src->Tag]);

int i = CallOtherForm(tm->childform, "", tm->sql, true, true);

if (i == mrOk)

{

tm->retid = retid;

tm->rettitle = rettitle;

src->edt->Text = rettitle;

// в uid возвращается выбранный код

AnsiString str = tm->filtersql;

if (retid.IsEmpty()) { CommonFilterClear(Sender); return; }

else StrRpl(str, "%1", retid);

form->FilterBy("a" + IntToStr(tm->code), str);

form->Go();

}

}

//---------------------------------------------------------------------------

void __fastcall TfrmUniForm::CommonFilterClear(TObject *Sender)

{

// обработка вызова дочерней формы по нажатию кнопки фильтра

TfrmFilter* src = ((TfrmFilter*)Sender);

TfltAddInfo* tm = ((TfltAddInfo*)fltlst->Items[src->Tag]);

tm->retid = "";

src->edt->Text = "";

AnsiString str = "";

if (tm->logic == 1) str = "(1=0)";

form->FilterBy("a" + IntToStr(tm->code), str);

form->Go();

}

//---------------------------------------------------------------------------

void __fastcall TfrmUniForm::CommonFltSlctChange(TObject *Sender)

{

// обработка вызова дочерней формы по выбору из списка

}

//---------------------------------------------------------------------------

void __fastcall TfrmUniForm::FormClose(TObject *Sender,

TCloseAction &Action)

{

Action = caFree;

}

//---------------------------------------------------------------------------

void __fastcall TfrmUniForm::formbtbtnCancelClick(TObject *Sender)

{

Close();

}

//---------------------------------------------------------------------------

void __fastcall TfrmUniForm::formbtbtnOKClick(TObject *Sender)

{

if (!form->tblBrowse->IsEmpty())

{

this->uid = form->tblBrowse->FieldByName(desc->keyfield)->AsString;

this->rettitle = form->tblBrowse->FieldByName(desc->listfield)->AsString;

this->ModalResult = mrOk;

}

}

//---------------------------------------------------------------------------

void __fastcall TfrmUniForm::TuneForAccept()

{

if (form) form->TuneForAccept();

accept = true;

if (!desc->accepttitle.IsEmpty()) this->Caption = desc->accepttitle;

if (desc->hideonaccept) this->Width = 500;

}

//---------------------------------------------------------------------------

void __fastcall TfrmUniForm::FormDestroy(TObject *Sender)

{

if (desc) delete desc;

if (slv) delete slv;

if (lnk) delete lnk;

for (int r=0; r<btnlst->Count; r++)

delete ((TbtnAddInfo*)(btnlst->Items[r]));

delete btnlst;

for (int r=0; r<fltlst->Count; r++)

delete ((TfltAddInfo*)(fltlst->Items[r]));

delete fltlst;

for (int r=0; r<fldlst->Count; r++)

delete ((TfieldAddInfo*)(fldlst->Items[r]));

delete fldlst;

if (itm) itm->Enabled = true;

}

//---------------------------------------------------------------------------

void __fastcall TfrmUniForm::UseReplaces(AnsiString &title, AnsiString &filter)

{

if (!form->tblBrowse->IsEmpty() && !form->tblBrowse->FieldByName(desc->keyfield )->IsNull)

{

StrRpl(title, "%1", form->tblBrowse->FieldByName(desc->listfield)->AsString);

StrRpl(filter, "%1", form->tblBrowse->FieldByName(desc->keyfield )->AsString);

}

StrRpl(filter, "<<", "|%%");

StrRpl(filter, ">>", "%%|");

// учтём подстановки полей вида <field>, а также их возможные NULL

filter = TranslateString(filter, FieldValue);

StrRpl(filter, "|%%", "<");

StrRpl(filter, "%%|", ">");

// учтём (ссылки на другие фильтры) подстаноки вида <<flt_value>>, а также их возможные NULL

filter = TranslateString(filter, FilterValue);

StrRpl(filter, "'NULL'", "NULL");

}

//---------------------------------------------------------------------------

int __fastcall TfrmUniForm::CallOtherForm(AnsiString _form, AnsiString _title, AnsiString _filter,

bool _modal, bool _accept)

{

UseReplaces(_title, _filter);

int res = 0;

try

{

TfrmUniForm *frm = new TfrmUniForm(((_modal)?(TForm*)Owner:(TForm*)frmMain), NULL, _form);

frm->parentform = this;

if (!_filter.Trim().IsEmpty()) frm->form->FilterBy("parent", _filter);

if (_accept) { frm->TuneForAccept(); frm->parentform = this; }

if (!_title.Trim().IsEmpty()) frm->Caption = _title;

frm->Execute();

if (_modal)

{

frm->FormStyle = fsNormal;

res = frm->ShowModal();

retid = frm->uid;

rettitle = frm->rettitle;

} else

{

frm->FormStyle = fsMDIChild;

frm->Show();

}

} catch (Exception &E)

{

ShowMessage(E.Message);

}

return res;

}

//---------------------------------------------------------------------------

void __fastcall TfrmUniForm::formdbgBrowseDblClick(TObject *Sender)

{

if (accept && form->btbtnOK->Visible && form->pnlLCOK->Visible)

formbtbtnOKClick(this);

}

//---------------------------------------------------------------------------

AnsiString __fastcall TfrmUniForm::FieldValue(AnsiString valname)

{

AnsiString tmp;

if (!form->tblBrowse->FieldByName(valname.Trim())->IsNull)

tmp= form->tblBrowse->FieldByName(valname.Trim())->AsString;

else

tmp= "NULL";

return tmp;

}

//---------------------------------------------------------------------------

AnsiString __fastcall TfrmUniForm::FilterValue(AnsiString valname)

{

AnsiString tmp;

// выясним текущее значение указанного фильтра

for (int r=0; r<fltlst->Count; r++)

{

TfltAddInfo* tm = ((TfltAddInfo*)(fltlst->Items[r]));

if (tm->name == valname.Trim())

{

if (!tm->retid.IsEmpty())

tmp= tm->retid;

else

tmp= "NULL";

}

}

return tmp;

}

//---------------------------------------------------------------------------

// ф-ция разбора строки

AnsiString __fastcall TfrmUniForm::TranslateString(AnsiString str, TGetValueEvent evt)

{

AnsiString tmp, filter, _filter = str;

tmp = "";

filter = "";

bool b = false;

for(int r=1; r<=_filter.Length(); r++)

{

if (_filter[r] == '<' && !b) { b = true; tmp = ""; }

else

if (_filter[r] == '>' && b && (!tmp.Trim().IsEmpty())) { b = false; filter+=evt(tmp); }

else

if (_filter[r] != '<' && b) { tmp += _filter[r]; }

else

if (!b) { filter+= _filter[r]; }

}

return filter;

}

//---------------------------------------------------------------------------

void __fastcall TfrmUniForm::FormShow(TObject *Sender)

{

if (accept) ReorderFilters();

}

//---------------------------------------------------------------------------

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