Up to 1.7.0

* Up SQLite to 3.38.0
* Column filters for resultset
* Jinja scripting
* Improve BLOB handling + issue #98

README.md

@@ -1,4 +1,4 @@
-sqlite-gui is a lightweight Windows GUI for [SQLite](https://www.sqlite.org/index.html) powered by C++, WinAPI and [Code::Blocks 17](http://www.codeblocks.org/). <br>
+sqlite-gui is a lightweight Windows GUI for [SQLite](https://www.sqlite.org/index.html) powered by C++/mingw and WinAPI.<br>
 Small, simple, powerfull, fast, free.
 
 |[**Download the latest version**](https://github.com/little-brother/sqlite-gui/releases/latest)|
@@ -23,7 +23,8 @@ Small, simple, powerfull, fast, free.
 * [Query parameters](https://github.com/little-brother/sqlite-gui/wiki#query-parameters)
 * [Query shortcuts](https://github.com/little-brother/sqlite-gui/wiki#query-shortcuts)
 * [Custom functions](https://github.com/little-brother/sqlite-gui/wiki#custom-functions)
-* Data generator
+* [Jinja scripting](https://github.com/little-brother/sqlite-gui/wiki#jinja-scripting) (experimental)
+* [Data generator](https://github.com/little-brother/sqlite-gui/wiki#data-generator)
 * [Extension pack](https://github.com/little-brother/sqlite-gui/wiki#extensions)
 * [Built-in REST API web server](https://github.com/little-brother/sqlite-gui/wiki#rest-api-web-server)
 * Demo database "Bookstore" for beginners

extensions/inja.cpp

@@ -0,0 +1,107 @@
+/*
+	inja(template)
+	Parse mustache template to plain sql.
+	select inja('{% for i in range (2) %}select {{ i }}; {% endfor %}'); --> select 1; select 2;
+	select inja('select {{ argv.1 }}; select {{ argv.2 }}', 'a', 'b'); --> select a; select b;
+	select inja('{% for row in query("select * from books") %} {{ row.author }} {% endfor %}'); --> Brandon Sanderson  Cristin Terrill ...
+*/
+#include "sqlite3ext.h"
+SQLITE_EXTENSION_INIT1
+#include <stdio.h>
+#include "inja.hpp"
+
+static void _inja(sqlite3_context *ctx, int argc, sqlite3_value **argv){		
+	if (sqlite3_value_type(argv[0]) == SQLITE_NULL) 
+		return sqlite3_result_null(ctx);
+
+	sqlite3* db = sqlite3_context_db_handle(ctx);
+
+	inja::Environment env;
+	env.add_callback("query", 1, [db](inja::Arguments& args) {
+		inja::json res = inja::json::array();
+
+		sqlite3_stmt* stmt;
+		bool rc = SQLITE_OK == sqlite3_prepare_v2(db, (args.at(0)->get<std::string>()).c_str(), -1, &stmt, 0);
+		if (rc) {
+			int colCount = sqlite3_column_count(stmt);
+			while (SQLITE_ROW == sqlite3_step(stmt)) {
+				inja::json row;
+				for (int colNo = 0; colNo < colCount; colNo++) 
+					row[(const char*)sqlite3_column_name(stmt, colNo)] = (const char*)sqlite3_column_text(stmt, colNo);
+
+				res.push_back(row);			
+			}
+		}
+		sqlite3_finalize(stmt);
+
+		if (!rc)
+			throw std::logic_error((const char*)sqlite3_errmsg(db));
+
+		return res;
+	});	
+
+	env.add_callback("query_row", 1, [db](inja::Arguments& args) {
+		inja::json res;
+
+		sqlite3_stmt* stmt;
+		bool rc = SQLITE_OK == sqlite3_prepare_v2(db, (args.at(0)->get<std::string>()).c_str(), -1, &stmt, 0);
+		if (rc) {
+			int colCount = sqlite3_column_count(stmt);
+			if (SQLITE_ROW == sqlite3_step(stmt)) {
+				for (int colNo = 0; colNo < colCount; colNo++) 
+					res[(const char*)sqlite3_column_name(stmt, colNo)] = (const char*)sqlite3_column_text(stmt, colNo);	
+			}
+		}
+		sqlite3_finalize(stmt);
+
+		if (!rc)
+			throw std::logic_error((const char*)sqlite3_errmsg(db));
+
+		return res;
+	});	
+
+	env.add_callback("query_value", 1, [db](inja::Arguments& args) {
+		std::string res;
+
+		sqlite3_stmt* stmt;
+		bool rc = SQLITE_OK == sqlite3_prepare_v2(db, (args.at(0)->get<std::string>()).c_str(), -1, &stmt, 0);
+		if (rc) {
+			if (SQLITE_ROW == sqlite3_step(stmt)) 
+				res = (const char*)sqlite3_column_text(stmt, 0);	
+		}
+		sqlite3_finalize(stmt);
+
+		if (!rc)
+			throw std::logic_error((const char*)sqlite3_errmsg(db));
+
+		return res;
+	});			
+
+	env.add_callback("call", 2, [env](inja::Arguments& args) mutable {
+		inja::json data = args.at(1)->get<inja::json>();
+		return env.render(args.at(0)->get<std::string>(), data);
+	});
+
+	const char* tmpl = (const char*)sqlite3_value_text(argv[0]);	
+	inja::json data;
+	for (int i = 0; i < argc; i++)
+		data["argv"][i] = (const char*)sqlite3_value_text(argv[i]);
+
+	try {
+		sqlite3_result_text(ctx, env.render(tmpl, data).c_str(), -1, SQLITE_TRANSIENT);
+	} catch(const std::exception& err){
+		sqlite3_result_error(ctx, err.what(), -1);
+	}
+}
+
+extern "C"
+{
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int sqlite3_inja_init(sqlite3 *db, char **pzErrMsg, const sqlite3_api_routines *pApi) {
+	SQLITE_EXTENSION_INIT2(pApi);
+	(void)pzErrMsg;  /* Unused parameter */
+	return sqlite3_create_function(db, "inja", -1, SQLITE_UTF8, 0, _inja, 0, 0);
+}
+}