New in 10.2.2 TFDBatchMoveJSONWriter was added.
TFDBatchMoveJSONWriter is a Writer that combines with TFDBatchMove to out to a simple JSON. But, TFDBatchMoveJSONWriter has the function of generating Model definition of Ext JS.
I tried with a field dynamically created with TFDMemTable.
code
The code below is a simple 64-bit console application.
I wrote this code using C++Builder.
umain.cpp
#include <vcl.h>
#include <windows.h>
#pragma hdrstop
#pragma argsused
#pragma link "dbrtl.a"
#pragma link "FireDAC.a"
#pragma link "FireDACCommonDriver.a"
#pragma link "FireDACCommon.a"
#include <tchar.h>
#include <iostream>
#include <System.JSON.hpp>
#include <FireDAC.Stan.Intf.hpp>
#include <FireDAC.Stan.Option.hpp>
#include <FireDAC.Stan.Param.hpp>
#include <FireDAC.Stan.Error.hpp>
#include <FireDAC.DatS.hpp>
#include <FireDAC.Phys.Intf.hpp>
#include <FireDAC.DApt.Intf.hpp>
#include <FireDAC.Comp.BatchMove.JSON.hpp>
#include <FireDAC.Comp.BatchMove.hpp>
#include <FireDAC.Comp.BatchMove.DataSet.hpp>
#include <Data.DB.hpp>
#include <FireDAC.Comp.DataSet.hpp>
#include <FireDAC.Comp.Client.hpp>
#include <FireDAC.Stan.StorageJSON.hpp>
#include <functional>
#include <string>
#include <sstream>
struct dbs
{
TFDMemTable* f_MemTable1
TFDBatchMove* f_BatchMove1
TFDBatchMoveDataSetReader* f_DataSetReader1
TFDBatchMoveJSONWriter* f_JSONWriter1
TFDStanStorageJSONLink* f_JSONLink1
dbs(std::function<void(TFDMemTable*)> func)
{
f_MemTable1 = new TFDMemTable(nullptr
f_BatchMove1 = new TFDBatchMove(nullptr
f_DataSetReader1 = new TFDBatchMoveDataSetReader(nullptr
f_JSONWriter1 = new TFDBatchMoveJSONWriter(nullptr
f_JSONLink1 = new TFDStanStorageJSONLink(nullptr
f_DataSetReader1->DataSet = f_MemTable1
f_BatchMove1->Reader = *f_DataSetReader1
f_BatchMove1->Writer = *f_JSONWriter1
func(f_MemTable1
static inline String IToString(int iin)
{
std::wostringstream ss
ss << iin
return ss.str().c_str
}
~dbs()
{
delete f_MemTable1
delete f_BatchMove1
delete f_DataSetReader1
delete f_JSONWriter1
delete f_JSONLink1
int _tmain(int argc, _TCHAR* argv[])
{
try
{
TStringList* alist = new TStringList
try
{
dbs adbs([](TFDMemTable* memt)
{
//Field definition of TFDMemTable* instance.
//Create five fields.
for (int i = 0 i < 5 i++)
{
TStringField* aField = new TStringField(nullptr
aField->FieldName = "Column" + dbs::IToString(i
aField->Size = 50
memt->Fields->Add(aField
}
//Then execute the GenerateExtJSModel() method.
//This GenerateExtJSModel() is a TFDBatchMoveJSONWriter class that has been added than 10.2.2.
adbs.f_JSONWriter1->GenerateExtJSModel("Table1", true, alist
//Console out.
std::wcout << alist->Text.c_str() << std::endl
}
__finally
{
delete alist
}
}
catch(...)
{
}
return 0
}
result GenerateExtJSModel()
The output store definition is as follows.
Ext.define('Table1', {
extend: 'Ext.data.Model',
requires: [
'Ext.data.field.Field'
],
fields: [
{ name: 'Column0', type: 'string' },
{ name: 'Column1', type: 'string' },
{ name: 'Column2', type: 'string' },
{ name: 'Column3', type: 'string' },
{ name: 'Column4', type: 'string' }
]
It can be output in Ext JS store definition.
