PowerBuilder Dynamic Datawindow With Arguments
Source Code
nvo_dwgenerator from nonvisualobject
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forward global type nvo_dwgenerator from nonvisualobject end type type st_data_arg from structure within nvo_dwgenerator end type end forward type st_data_arg from structure string arg_name string arg_type end type global type nvo_dwgenerator from nonvisualobject end type global nvo_dwgenerator nvo_dwgenerator type variables public: CONSTANT STRING STRING_TYPE = 'string' CONSTANT STRING NUMBER_TYPE = 'number' CONSTANT STRING DATE_TYPE = 'date' CONSTANT STRING TIME_TYPE = 'time' CONSTANT STRING DATETIME_TYPE = 'datetime' CONSTANT STRING DECIMAL_TYPE = 'decimal' CONSTANT STRING STRINGARRAY_TYPE = 'stringlist' CONSTANT STRING NUMBERARRAY_TYPE = 'numberlist' CONSTANT STRING DATEARRAY_TYPE = 'datelist' CONSTANT STRING TIMEARRAY_TYPE = 'timelist' CONSTANT STRING DATETIMEARRAY_TYPE = 'datetimelist' CONSTANT STRING DECIMALARRAY_TYPE = 'decimallist' private: string sql_syntax boolean proc_flag st_data_arg args[] string presentation = 'style(type=grid)' transaction trs end variables forward prototypes public function integer set_argument (integer position, string arg_name, string arg_type) public function integer create_datastore (ref datastore ds) public subroutine reset () public subroutine set_sql (string sql) public subroutine set_procedure (string proc) public function integer create_datawindow (datawindow dw) public subroutine set_presentation (string p) public subroutine set_transobject (transaction t) public function integer create_syntax (ref string syntax) public subroutine get_arguments (datawindow adw, ref string as_arg_name[], ref string as_arg_type[], ref string as_arg_value[]) end prototypes public function integer set_argument (integer position, string arg_name, string arg_type);//==================================================================== // Function: nvo_dwgenerator.set_argument() //-------------------------------------------------------------------- // Description: //-------------------------------------------------------------------- // Arguments: // value integer position // value string arg_name // value string arg_type //-------------------------------------------------------------------- // Returns: integer //-------------------------------------------------------------------- // Author: PB.BaoGa Date: 2021/06/23 //-------------------------------------------------------------------- // Usage: nvo_dwgenerator.set_argument ( integer position, string arg_name, string arg_type ) //-------------------------------------------------------------------- // Copyright (c) PB.BaoGa(TM), All rights reserved. //-------------------------------------------------------------------- // Modify History: // //==================================================================== st_data_arg arg If Position < 1 Then Return -1 If Not (arg_type = STRING_TYPE Or & arg_type = NUMBER_TYPE Or & arg_type = DATE_TYPE Or & arg_type = TIME_TYPE Or & arg_type = DATETIME_TYPE Or & arg_type = DECIMAL_TYPE Or & arg_type = STRINGARRAY_TYPE Or & arg_type = NUMBERARRAY_TYPE Or & arg_type = DATEARRAY_TYPE Or & arg_type = TIMEARRAY_TYPE Or & arg_type = DATETIMEARRAY_TYPE Or & arg_type = DECIMALARRAY_TYPE) Then Return -1 End If arg.arg_name = arg_name arg.arg_type = arg_type args[Position] = arg Return 0 end function public function integer create_datastore (ref datastore ds);//==================================================================== // Function: nvo_dwgenerator.create_datastore() //-------------------------------------------------------------------- // Description: //-------------------------------------------------------------------- // Arguments: // reference datastore ds //-------------------------------------------------------------------- // Returns: integer //-------------------------------------------------------------------- // Author: PB.BaoGa Date: 2021/06/23 //-------------------------------------------------------------------- // Usage: nvo_dwgenerator.create_datastore ( ref datastore ds ) //-------------------------------------------------------------------- // Copyright (c) PB.BaoGa(TM), All rights reserved. //-------------------------------------------------------------------- // Modify History: // //==================================================================== String dwsyntax If create_syntax(dwsyntax) < 0 Then Return -1 If Not IsValid(ds) Then ds = Create datastore End If Return ds.Create(dwsyntax) end function public subroutine reset ();//==================================================================== // Function: nvo_dwgenerator.reset() //-------------------------------------------------------------------- // Description: //-------------------------------------------------------------------- // Arguments: //-------------------------------------------------------------------- // Returns: (none) //-------------------------------------------------------------------- // Author: PB.BaoGa Date: 2021/06/23 //-------------------------------------------------------------------- // Usage: nvo_dwgenerator.reset ( ) //-------------------------------------------------------------------- // Copyright (c) PB.BaoGa(TM), All rights reserved. //-------------------------------------------------------------------- // Modify History: // //==================================================================== st_data_arg empty_args[] args = empty_args sql_syntax = '' presentation = 'style(type=grid)' trs = sqlca end subroutine public subroutine set_sql (string sql); sql_syntax = sql proc_flag = False end subroutine public subroutine set_procedure (string proc); sql_syntax = Proc proc_flag = True end subroutine public function integer create_datawindow (datawindow dw);//==================================================================== // Function: nvo_dwgenerator.create_datawindow() //-------------------------------------------------------------------- // Description: //-------------------------------------------------------------------- // Arguments: // value datawindow dw //-------------------------------------------------------------------- // Returns: integer //-------------------------------------------------------------------- // Author: PB.BaoGa Date: 2021/06/23 //-------------------------------------------------------------------- // Usage: nvo_dwgenerator.create_datawindow ( datawindow dw ) //-------------------------------------------------------------------- // Copyright (c) PB.BaoGa(TM), All rights reserved. //-------------------------------------------------------------------- // Modify History: // //==================================================================== If Not IsValid(dw) Then Return -1 String dwsyntax If create_syntax(dwsyntax) < 0 Then Return -1 Return dw.Create(dwsyntax) end function public subroutine set_presentation (string p);presentation = p end subroutine public subroutine set_transobject (transaction t);trs = t end subroutine public function integer create_syntax (ref string syntax);//==================================================================== // Function: nvo_dwgenerator.create_syntax() //-------------------------------------------------------------------- // Description: //-------------------------------------------------------------------- // Arguments: // reference string syntax //-------------------------------------------------------------------- // Returns: integer //-------------------------------------------------------------------- // Author: PB.BaoGa Date: 2021/06/23 //-------------------------------------------------------------------- // Usage: nvo_dwgenerator.create_syntax ( ref string syntax ) //-------------------------------------------------------------------- // Copyright (c) PB.BaoGa(TM), All rights reserved. //-------------------------------------------------------------------- // Modify History: // //==================================================================== Int i Long ll_pos, ll_pos_start, ll_pos_end String ls_sql Char lc_sql[] String param String ls_str Char lc_syntax[] Long j, k String ls_dwsyntax, ls_err Char lc_dwsql[] String ls_arguments ls_sql = sql_syntax lc_sql = ls_sql For i = 1 To UpperBound(args) ll_pos_start = 1 Do While True ll_pos = Pos(ls_sql, ':'+args[i].arg_name, ll_pos_start) If ll_pos <= 0 Then Exit ll_pos_end = ll_pos + Len(args[i].arg_name) If ll_pos_end < Len(ls_sql) Then If Not (lc_sql[ll_pos_end + 1] = ' ' Or & lc_sql[ll_pos_end + 1] = '~r' Or & lc_sql[ll_pos_end + 1] = '~n' Or & lc_sql[ll_pos_end + 1] = '~t' Or & lc_sql[ll_pos_end + 1] = ')') Then ll_pos_start = ll_pos_end + 1 Continue End If End If Choose Case args[i].arg_type Case STRING_TYPE, STRINGARRAY_TYPE param = "'"+Space(255)+"'" Case NUMBER_TYPE, NUMBERARRAY_TYPE param = '0' Case DECIMAL_TYPE, DECIMALARRAY_TYPE param = '0.0' Case Else param = '' End Choose ls_sql = Replace(ls_sql, ll_pos, Len(args[i].arg_name) + 1, param) lc_sql = ls_sql ll_pos_start = ll_pos Loop Next //Create SyntaxFromSQL ls_dwsyntax = trs.SyntaxFromSQL( ls_sql, presentation, ls_err) If Len(ls_err) > 0 Then Messagebox("Warning", "Create Syntax ls_error " + ls_err) Return -1 End If //Retrieve lc_syntax = ls_dwsyntax If proc_flag Then ls_str = 'procedure="' Else ls_str = 'retrieve="' End If ll_pos = Pos(ls_dwsyntax, ls_str) j = ll_pos + Len(ls_str) Do While j < UpperBound(lc_syntax) If lc_syntax[j] = '"' Then ll_pos_end = j Exit End If If lc_syntax[j] = '~~' Then j += 2 Continue End If j ++ Loop //ls_arguments For i = 1 To UpperBound(args) ls_arguments += '("' + args[i].arg_name + '", ' + args[i].arg_type + ')' If i < UpperBound(args) Then ls_arguments += ',' End If Next ls_arguments = ' arguments=(' + ls_arguments + ')' ls_dwsyntax = Replace(ls_dwsyntax, ll_pos_end + 1, 0, ls_arguments) //Generator Syntax lc_sql = sql_syntax For j = 1 To UpperBound(lc_sql) If lc_sql[j] = '~~' Or lc_sql[j] = '"' Then k++ lc_dwsql[k] = '~~' End If k++ lc_dwsql[k] = lc_sql[j] Next ls_dwsyntax = Replace(ls_dwsyntax, ll_pos + Len(ls_str), ll_pos_end - ll_pos - Len(ls_str), lc_dwsql) Syntax = ls_dwsyntax Return 0 end function public subroutine get_arguments (datawindow adw, ref string as_arg_name[], ref string as_arg_type[], ref string as_arg_value[]);//==================================================================== // Function: nvo_dwgenerator.get_arguments() //-------------------------------------------------------------------- // Description: //-------------------------------------------------------------------- // Arguments: // value datawindow adw // reference string as_arg_name[] // reference string as_arg_type[] //-------------------------------------------------------------------- // Returns: (none) //-------------------------------------------------------------------- // Author: PB.BaoGa Date: 2021/06/23 //-------------------------------------------------------------------- // Usage: nvo_dwgenerator.get_arguments ( datawindow adw, ref string as_arg_name[], ref string as_arg_type[] ) //-------------------------------------------------------------------- // Copyright (c) PB.BaoGa(TM), All rights reserved. //-------------------------------------------------------------------- // Modify History: // //==================================================================== Long ll_pos_tab, ll_pos_new_line, li_i String ls_arg_full_text, ls_arguments, ls_arg_name[], ls_arg_type[], ls_arg_value[] String ls_TAB = Char(9), ls_new_line = Char(10) ls_arg_full_text = adw.Describe("DataWindow.table.arguments") If ls_arg_full_text = '?' Or ls_arg_full_text = '!' Then ls_arg_full_text = '' Do While ls_arg_full_text <> '' li_i++ ll_pos_tab = Pos(ls_arg_full_text, ls_TAB) ls_arg_name[li_i] = Left(ls_arg_full_text, ll_pos_tab - 1) ls_arg_value[li_i] = adw.Describe("Evaluate('" + ls_arg_name[li_i] + "', 0)") ll_pos_new_line = Pos(ls_arg_full_text, ls_new_line, ll_pos_tab + 1) If ll_pos_new_line = 0 Then ll_pos_new_line = Len(ls_arg_full_text) + 1 ls_arg_type[li_i] = Mid(ls_arg_full_text, ll_pos_tab + 1, ll_pos_new_line - ll_pos_tab - 1) ls_arg_full_text = Mid(ls_arg_full_text, ll_pos_new_line + 1) /* ls_arguments = ls_arguments + ls_new_line + Char(13) + & ls_arg_name[li_i] + Fill(' ', 25 - Len(ls_arg_name[li_i])) + ls_TAB + & ls_arg_type[li_i] + Fill(' ', 15 - Len(ls_arg_type[li_i])) + ls_TAB + & ls_arg_value[li_i] */ Loop as_arg_name = ls_arg_name as_arg_type = ls_arg_type as_arg_value = ls_arg_value //MessageBox('Arg', ls_arguments ) //'Datawindow.Table.Arguments' = id number~r~n data_start datetime~r~n data_end datetime //'Datawindow.Table.Procedure' = 1 execute dbo.sp_name @id = :id, @data_start = :data_start, @data_end = :data_end end subroutine on nvo_dwgenerator.create call super::create TriggerEvent( this, "constructor" ) end on on nvo_dwgenerator.destroy TriggerEvent( this, "destructor" ) call super::destroy end on event constructor;trs = sqlca end event |
w_main from window
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forward global type w_main from window end type type cb_1 from commandbutton within w_main end type type cb_4 from commandbutton within w_main end type type dw_emp from datawindow within w_main end type type cb_2 from commandbutton within w_main end type end forward global type w_main from window integer width = 1801 integer height = 1420 boolean titlebar = true string title = "Dynamic Datawindow Arguments" boolean controlmenu = true boolean minbox = true boolean maxbox = true boolean resizable = true long backcolor = 67108864 string icon = "AppIcon!" boolean center = true cb_1 cb_1 cb_4 cb_4 dw_emp dw_emp cb_2 cb_2 end type global w_main w_main on w_main.create this.cb_1=create cb_1 this.cb_4=create cb_4 this.dw_emp=create dw_emp this.cb_2=create cb_2 this.Control[]={this.cb_1,& this.cb_4,& this.dw_emp,& this.cb_2} end on on w_main.destroy destroy(this.cb_1) destroy(this.cb_4) destroy(this.dw_emp) destroy(this.cb_2) end on type cb_1 from commandbutton within w_main integer x = 585 integer y = 32 integer width = 443 integer height = 112 integer taborder = 30 integer textsize = -10 integer weight = 400 fontcharset fontcharset = ansi! fontpitch fontpitch = variable! fontfamily fontfamily = swiss! string facename = "Tahoma" string text = "Get Arguments" end type event clicked;String ls_arg_name[], ls_arg_type[], ls_arg_value[] nvo_dwgenerator ldwgen ldwgen = Create nvo_dwgenerator ldwgen.get_arguments(dw_emp, ls_arg_name, ls_arg_type, ls_arg_value) end event type cb_4 from commandbutton within w_main integer x = 1061 integer y = 32 integer width = 667 integer height = 112 integer taborder = 30 integer textsize = -10 integer weight = 400 fontcharset fontcharset = ansi! fontpitch fontpitch = variable! fontfamily fontfamily = swiss! string facename = "Tahoma" string text = "Create From Procedure" end type event clicked;/* create or replace procedure pro_get_emp_list(p_job in varchar2, p_sal in number, emp_list out sys_refcursor) is begin open emp_list for select empno, ename, job, mgr, hiredate, sal from scott.emp where job = p_job and sal > p_sal; end pro_get_emp_list; */ /* nvo_dwgenerator dsgen dsgen = Create nvo_dwgenerator dsgen.set_procedure('execute pro_get_emp_list; p_job=:p_job ,p_sal=:p_sal') dsgen.set_argument( 1, 'p_job', dsgen.STRING_TYPE) dsgen.set_argument( 2, 'p_sal', dsgen.NUMBER_TYPE) dsgen.create_datawindow( dw_emp) dw_emp.SetTransObject(SQLCA) dw_emp.Retrieve('CLERK', 1000) Return 0 */ /* create procedure DBA.sp_customer_products(inout customer_id integer) result(id integer,quantity_ordered integer) begin select product.id,sum(sales_order_items.quantity) from product,sales_order_items,sales_order where sales_order.cust_id = customer_id and sales_order.id = sales_order_items.id and sales_order_items.prod_id = product.id group by product.id end */ nvo_dwgenerator dsgen dsgen = Create nvo_dwgenerator dsgen.set_procedure("execute sp_customer_products; customer_id=:customer_id") dsgen.set_argument( 1, 'customer_id', dsgen.number_type ) dsgen.create_datawindow( dw_emp) dw_emp.SetTransObject(SQLCA) dw_emp.Retrieve(103) Return 0 end event type dw_emp from datawindow within w_main integer x = 37 integer y = 160 integer width = 1682 integer height = 1088 integer taborder = 40 string title = "none" boolean hscrollbar = true boolean vscrollbar = true boolean livescroll = true borderstyle borderstyle = stylelowered! end type type cb_2 from commandbutton within w_main integer x = 37 integer y = 32 integer width = 485 integer height = 112 integer taborder = 20 integer textsize = -10 integer weight = 400 fontcharset fontcharset = ansi! fontpitch fontpitch = variable! fontfamily fontfamily = swiss! string facename = "Tahoma" string text = "Create From Sql" end type event clicked;nvo_dwgenerator dsgen dsgen = Create nvo_dwgenerator dsgen.set_sql("select dept_id, dept_name, dept_head_id from department where dept_id = :as_dept_id") dsgen.set_argument( 1, 'as_dept_id', dsgen.number_type ) dsgen.create_datawindow( dw_emp) dw_emp.SetTransObject(SQLCA) dw_emp.Retrieve(100) Return 0 end event |
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