Lot of code for generating code. Working on unit tests.

pglab/BaseTableModel.cpp

@@ -1,6 +1,7 @@
 #include "BaseTableModel.h"
 #include "ResultTableModelUtil.h"
 #include <QBrush>
+#include "Pgsql_oids.h"
 
 using namespace Pgsql;
 
@@ -10,7 +11,7 @@ QVariant BaseTableModel::data(const QModelIndex &index, int role) const
 	Oid oid = getType(index.column());
 	if (role == Qt::DisplayRole) {
 		v = getData(index);
-		if (oid == BOOLOID) {
+		if (oid == bool_oid) {
 			v = FormatBoolForDisplay(v.toBool());
 		}
 	}
@@ -18,7 +19,7 @@ QVariant BaseTableModel::data(const QModelIndex &index, int role) const
 		v = (int)GetDefaultAlignmentForType(oid);
 	}
 	else if (role == Qt::ForegroundRole) {
-		if (oid == BOOLOID) {
+		if (oid == bool_oid) {
 			QVariant d = getData(index);
 			if (d.type() == QVariant::Bool) {
 				v = QBrush(GetDefaultBoolColor(d.toBool()));

pglab/CodeBuilderConfiguration.cpp

@@ -1,8 +0,0 @@
-#include "CodeBuilderConfiguration.h"
-#include "Pgsql_Result.h"
-
-
-QString CodeBuilder::GenClassDefinition(const Pgsql::Result &/*result*/) const
-{
-	return QString();
-}

pglab/CodeBuilderConfiguration.h

@@ -1,120 +0,0 @@
-#pragma once
-
-#include <QString>
-#include <QStringBuilder>
-#include <libpq-fe.h>
-
-namespace Pgsql { class Result; }
-
-/*
-class PgAuthId {
-public:
-	PgAuthId();
-
-	Oid oid = InvalidOid;
-	QString name;
-	bool super;
-	bool inherit;
-	bool createRole;
-	bool createDB;
-	bool canlogin;
-	bool replication;
-	bool bypassRls;
-	int connLimit;
-	QDateTime validUntil;*/
-
-/** Defines how a database result fieldname should be converted into a variable
- * name in the target language.
- * 
- */
-class VarNameManglingRules {
-public:
-    enum class CollisionHandling {
-        Restrict, ///< An error will be reported and no code generated
-        Fqn, ///< Turn into fully qualified name (table_column)
-        Number ///< A number will be appended to fields that have the same name
-    };
-    
-    enum class CaseConversion {
-        AsIs,
-        Upper,
-        Lower        
-    };
-
-    QString replaceSpaceWith; ///< default is empty string which means remove spaces
-    CollisionHandling CollisionHandling = CollisionHandling::Restrict;
-    CaseConversion caseConversion = CaseConversion::AsIs; ///< overall case conversion rule
-    CaseConversion caseFirstChar = CaseConversion::AsIs; ///< case of the first char
-    bool underscoreToCamel = false; ///< remove underscores and make first char after underscore uppercase   
-};
-/**
- * 
- */
-class LanguageConfig {
-public:
-    /** Default template for declaring a variable of the correct type.
-     * exmaple: "{$type} {$varname};"
-     */
-    QString varDeclTemplate; 
-    VarNameManglingRules varNaming;
-    
-    enum class VariableStrategy {
-        UseLocalVariables,
-        DeclareClass
-    };
-    
-    QString classStartTemplate;
-    QString classEndTemplate;
-    QString classFieldTemplate;
-};
-
-/** 
- * 
- * There are some default fallbacks in place
- * - smallint > integer
- * - integer > bigint
- * - int2 > smallint
- * - int4 > integer
- * - int8 > bigint
- * 
- * - float > double
- * - text > varchar
- */
-class TypeConfig {
-public:
-    /** The following template allows you to derive the variable name from the result fieldname.
-     * 
-     * {$} in the suplied value will be replaced with the name of the result field. 
-     * 
-     * example: {$}
-     */
-    QString varNameTemplate; 
-    QString typeIdent;
-    QString varDeclTemplate; ///< Overrules the default template in the language config
-    
-//     Mapping() = default;
-//     Mapping(Oid oid, QString lang_type_ident)
-//         : db_oid(oid), lang_type(lang_type_ident)
-//         {}
-//         
-//     bool operator < (const Mapping &rhs) const
-//     {
-//         return db_oid < rhs.db_oid;
-//     }
-    
-};
-
-class TypeMappings {
-public:
-    
-private:
-};
-
-class CodeBuilderConfiguration {
-public:
-};
-
-class CodeBuilder {
-public:    
-    QString GenClassDefinition(const Pgsql::Result &result) const;
-};

pglab/ColumnTableModel.cpp

@@ -140,7 +140,7 @@ int ColumnTableModel::columnCount(const QModelIndex &/*parent*/) const
 
 Oid ColumnTableModel::getType(int /*column*/) const
 {
-	Oid oid = Pgsql::VARCHAROID;
+	Oid oid = Pgsql::varchar_oid;
 //	switch (column) {
 //	case TypeCol:
 //	case NameCol:

pglab/ConstraintModel.cpp

@@ -79,12 +79,12 @@ QVariant ConstraintModel::headerData(int section, Qt::Orientation orientation, i
 	return v;
 }
 
-int ConstraintModel::rowCount(const QModelIndex &parent) const
+int ConstraintModel::rowCount(const QModelIndex &) const
 {
 	return m_constraints.size();
 }
 
-int ConstraintModel::columnCount(const QModelIndex &parent) const
+int ConstraintModel::columnCount(const QModelIndex &) const
 {
 	return colCount;
 }
@@ -99,7 +99,7 @@ int ConstraintModel::columnCount(const QModelIndex &parent) const
 //	return v;
 //}
 
-Oid ConstraintModel::getType(int column) const
+Oid ConstraintModel::getType(int ) const
 {
 	Oid oid = Pgsql::varchar_oid;
 

pglab/DatabasesTableModel.cpp

@@ -84,10 +84,10 @@ Oid DatabasesTableModel::getType(int column) const
 	switch (column) {
 	case AllowConnCol:
 	case IsTemplateCol:
-		oid = BOOLOID;
+		oid = bool_oid;
 		break;
 	case ConnLimitCol:
-		oid = INT4OID;
+		oid = int4_oid;
 		break;
 	case AclCol:
 	case CollateCol:
@@ -96,7 +96,7 @@ Oid DatabasesTableModel::getType(int column) const
 	case DbaCol:
 	case NameCol:
 	case TablespaceCol:
-		oid = VARCHAROID;
+		oid = varchar_oid;
 		break;
 	default:
 		oid = InvalidOid;

pglab/IconColumnDelegate.cpp

@@ -32,8 +32,8 @@ void IconColumnDelegate::paint(QPainter *painter, const QStyleOptionViewItem &op
 	}
 }
 
-QSize IconColumnDelegate::sizeHint(const QStyleOptionViewItem &option,
+QSize IconColumnDelegate::sizeHint(const QStyleOptionViewItem &,
-				   const QModelIndex &index) const
+				   const QModelIndex &) const
 {
 	return QSize(16, 16);
 }

pglab/RolesTableModel.cpp

@@ -81,7 +81,7 @@ Oid RolesTableModel::getType(int column) const
 	Oid oid;
 	switch (column) {
 	case NameCol:
-		oid = VARCHAROID;
+		oid = varchar_oid;
 		break;
 
 	case ReplicationCol:
@@ -91,15 +91,15 @@ Oid RolesTableModel::getType(int column) const
 	case CreateRoleCol:
 	case InheritCol:
 	case SuperCol:
-		oid = BOOLOID;
+		oid = bool_oid;
 		break;
 
 	case ConnlimitCol:
-		oid = INT4OID;
+		oid = int4_oid;
 		break;
 
 	case ValidUntilCol:
-		oid = TIMESTAMPOID;
+		oid = timestamp_oid;
 		break;
 	default:
 		oid = InvalidOid;

pglab/TablesTableModel.cpp

@@ -142,7 +142,7 @@ Oid TablesTableModel::getType(int column) const
 	case OptionsCol:
 //	case AclCol:
 	default:
-		oid = Pgsql::VARCHAROID;
+		oid = Pgsql::varchar_oid;
 	}
 	return oid;
 }

pglab/pglab.pro

@@ -54,7 +54,6 @@ SOURCES += main.cpp\
     ConnectionList.cpp \
     ProcessStdioWidget.cpp \
     GlobalIoService.cpp \
-    CodeBuilderConfiguration.cpp \
     ResultTableModelUtil.cpp \
     BaseTableModel.cpp \
     QueryParamListController.cpp \

pglablib/PgContainer.h

@@ -24,6 +24,8 @@ class PgContainer: public IPgContainter {
 public:
 	using t_Container = std::vector<T>; ///< Do not assume it will stay a vector only expect bidirectional access
 
+	PgContainer() = default;
+
 	explicit PgContainer(std::weak_ptr<PgDatabaseCatalog> cat)
 		: m_catalogue(cat)
 	{}
@@ -87,6 +89,13 @@ public:
 
 		std::sort(m_container.begin(), m_container.end());
 	}
+
+	// Meant for mocking during testing
+	void add(const T &elem)
+	{
+		m_container.push_back(elem);
+		std::sort(m_container.begin(), m_container.end());
+	}
 protected:
 	std::weak_ptr<PgDatabaseCatalog> m_catalogue;
 	t_Container m_container;

pglablib/codebuilder/CodeBuilder.cpp

@@ -0,0 +1,119 @@
+#include "CodeBuilder.h"
+#include "Pgsql_Result.h"
+#include "IndentationConfig.h"
+#include "LanguageConfig.h"
+#include "StructureTemplate.h"
+#include "util.h"
+#include <QTextStream>
+
+void FormatToStream(QTextStream &stream, QString format, std::function<void(QTextStream &, QString)> field_callback)
+{
+	// Use static to optimize only once
+	static QRegularExpression cached_find_var_re("(?:[^\\\\]|^)(\\/%([a-zA-Z0-9_-]+)%\\/)", QRegularExpression::OptimizeOnFirstUsageOption);
+
+	int from = 0;
+	QRegularExpressionMatch match;
+	while (format.indexOf(cached_find_var_re, from, &match) >= 0) {
+		if (from > 0) {
+			// Because the regex has to check for backslash in front we have the from position
+			// one position before where we actually should continue for the second match and later ie when from > 0
+			// Therefor increase from by 1 to make the substring (midRef) calculation work
+			++from;
+		}
+		// copy code before the var to the stream
+		stream << format.midRef(from, match.capturedStart(1) - from);
+		field_callback(stream, match.captured(2));
+		from = match.capturedEnd()-1; // -1 because it wants to match one character before or start of line to make sure there is no backslash
+	}
+	if (from > 0) {
+		// same reason as at the start of the loop
+		++from;
+	}
+	stream << format.midRef(from);
+}
+
+void CodeBuilder::GenCodeForExecutingQuery(QTextStream &q, const QString &query, const Pgsql::Result &result)
+{
+// %1 query string
+// %2 struct_name
+// %3 list of field assignments
+	QString exec_query_template = "Pgsql::Result result = conn.query(%1);";
+
+	QString loop_start_template =
+		"Pgsql::Result result = conn.query(/%query_literal%/);"
+		"for (auto row: result) {\n"
+		"	 Pgsql::Col col(row);\n"
+		"    /%struct_type%/ v;\n"
+		"/%assign_fields%/"
+		"}";
+
+	// %field_name%
+	// %column_name%
+	// %column_index%
+	QString assign_result_field_template = "col >> v./%field_name%/";
+	QString query_string_literal = ConvertToMultiLineCString(query);
+
+	// [optional] Gen declaration of result structure
+	GenReturnStructDefinition(q, result);
+
+	// assume we have connection? What name???
+
+	// gen code for creating and executing statement
+	// - bind parameters
+
+	// Gen code for iterating through result and filling the result struct/or local variables
+
+
+}
+
+void CodeBuilder::GenReturnStructDefinition(QTextStream &q, const Pgsql::Result &result) const
+{
+	std::shared_ptr<const StructureTemplate> templ = m_configuration->structureTemplate();
+
+	QString struct_name = "TODO";
+	QString field_format = templ->m_fieldTemplate;
+	int field_indent_levels = templ->m_fieldIndentation;
+	QString field_indent_string = m_configuration->indentationConfig()->getIndentString(field_indent_levels);
+	// Make struct start
+	q << QString(templ->m_startTemplate).arg(struct_name);
+	// Process fields
+	for (int column = 0; column < result.cols(); ++column) {
+		QString res_col_name = result.getColName(column);
+		Oid type_oid = result.type(column);
+
+		q << field_indent_string;
+		genFieldDeclaration(q, field_format, res_col_name, type_oid);
+		q << "\n";
+		// Unfortunatly there is no easy reliable way to determine if a column can contain null values
+		// For simple result columns we can have a look at the original column and if that has a NOT NULL constraint
+		// then we can assume NOT NULL for the result if there are no LEFT/RIGHT JOINS or other constructs that can introduce NULL
+		// values
+
+		// Any way at generation time we might want to be able to specify the null handle
+		// - exception/error return
+		// - magic value
+		// - boost::optional
+		// - boolean flags
+		// - null pointer (useful for languages where this has no cost, other cases boolean flags will be more performant)
+	}
+	// Finish struct
+	q << QString(templ->m_endTemplate).arg(struct_name);
+}
+
+QString CodeBuilder::columnNameToVariableName(QString column_name) const
+{
+	return m_configuration->columnNameToFieldName(column_name);
+}
+
+QString CodeBuilder::getTypeName(Oid dbtype) const
+{
+	return m_configuration->getTypeName(dbtype);
+}
+
+void CodeBuilder::genFieldDeclaration(QTextStream &q, const QString &format, const QString &column_name, Oid column_type) const
+{
+	QString field_name = columnNameToVariableName(column_name);
+	QString type_name = getTypeName(column_type);
+	q << QString(format).arg(field_name).arg(type_name);
+}
+

pglablib/codebuilder/CodeBuilder.h

@@ -0,0 +1,28 @@
+#ifndef CODEBUILDER_H
+#define CODEBUILDER_H
+
+#include "Pgsql_declare.h"
+#include <QString>
+
+class LanguageConfig;
+class QTextStream;
+
+class CodeBuilder {
+public:
+	void GenCodeForExecutingQuery(QTextStream &q, const QString &query, const Pgsql::Result &result);
+	void GenReturnStructDefinition(QTextStream &q, const Pgsql::Result &result) const;
+
+// Generating code for performing query and going through the result
+// - Code for executing the query
+// - Code for looping the result
+// - Code for processing a single row
+//  - Declaration of struct for holding single row result
+	QString columnNameToVariableName(QString column_name) const;
+	QString getTypeName(Oid dbtype) const;
+private:
+	std::shared_ptr<const LanguageConfig> m_configuration;
+
+	void genFieldDeclaration(QTextStream &q, const QString &format, const QString &column_name, Oid column_type) const;
+};
+
+#endif // CODEBUILDER_H

pglablib/codebuilder/DefaultConfigs.cpp

@@ -0,0 +1,50 @@
+#include "DefaultConfigs.h"
+#include "LanguageConfig.h"
+#include "TypeMappings.h"
+#include "Pgsql_oids.h"
+
+using namespace Pgsql;
+
+TypeMappings GetDefaultCppTypeMappings()
+{
+	TypeMappings result = {
+		{ bool_oid, "bool" },
+		{ char_oid, "char" },
+		{ name_oid, "std::string" },
+		{ int8_oid, "int64_t" },
+		{ int2_oid, "int16_t" },
+		{ int4_oid, "int32_t" },
+		{ text_oid, "std::string" },
+		{ oid_oid, "Oid" },
+		{ float4_oid, "float" },
+		{ float8_oid, "double" }
+	};
+	return result;
+}
+
+
+std::shared_ptr<LanguageConfig> buildDefaultCppLanguageConfig()
+{
+	return std::make_shared<LanguageConfig>();
+}
+
+std::shared_ptr<const LanguageConfig> getDefaultCppLanguageConfig()
+{
+	static auto config = buildDefaultCppLanguageConfig();
+	return config;
+}
+
+std::shared_ptr<const LanguageConfig> buildPgLabCppLanguageConfig()
+{
+	auto cfg = buildDefaultCppLanguageConfig();
+
+	return cfg;
+}
+
+std::shared_ptr<const LanguageConfig> getPgLabCppLanguageConfig()
+{
+	static auto config = buildPgLabCppLanguageConfig();
+	return config;
+}
+
+

pglablib/codebuilder/DefaultConfigs.h

@@ -0,0 +1,11 @@
+#ifndef DEFAULTCONFIGS_H
+#define DEFAULTCONFIGS_H
+
+#include <memory>
+
+class LanguageConfig;
+
+std::shared_ptr<const LanguageConfig> getDefaultCppLanguageConfig();
+std::shared_ptr<const LanguageConfig> getPgLabCppLanguageConfig();
+
+#endif // DEFAULTCONFIGS_H

pglablib/codebuilder/IndentationConfig.cpp

@@ -0,0 +1,27 @@
+#include "IndentationConfig.h"
+
+IndentationConfig::IndentationConfig() = default;
+
+IndentationConfig::IndentationConfig(int tab_size, int indentation_size, bool use_tabs)
+	: m_tabSize(tab_size)
+	, m_indentationSize(indentation_size)
+	, m_useTabs(use_tabs)
+{}
+
+/** Returns a string with the right amount of tabs and spaces for the
+ * requested indentation level.
+ */
+QString IndentationConfig::getIndentString(int level) const
+{
+	int spaces = level * m_indentationSize;
+	int tabs = 0;
+	if (m_useTabs) {
+		tabs = spaces / m_tabSize;
+		spaces -= tabs * m_tabSize;
+	}
+
+	if (tabs > 0)
+		return QString(tabs, '\t') + QString(spaces, ' ');
+	else
+		return QString(spaces, ' ');
+}

pglablib/codebuilder/IndentationConfig.h

@@ -0,0 +1,23 @@
+#ifndef INDENTATIONCONFIG_H
+#define INDENTATIONCONFIG_H
+
+#include <QString>
+
+class IndentationConfig {
+public:
+	IndentationConfig();
+	IndentationConfig(int tab_size, int indentation_size, bool use_tabs);
+
+	/** Returns a string with the right amount of tabs and spaces for the
+	 * requested indentation level.
+	 */
+	QString getIndentString(int level) const;
+
+private:
+	int m_tabSize = 8; ///< the size of a tab
+	int m_indentationSize = 4; ///< Number of positions per level to indent
+	bool m_useTabs = true; ///< Use tabs as much as possible instead of spaces when indenting
+};
+
+
+#endif // INDENTATIONCONFIG_H

pglablib/codebuilder/LanguageConfig.cpp

@@ -0,0 +1,15 @@
+#include "LanguageConfig.h"
+#include "NameManglingRules.h"
+#include "TypeMappings.h"
+
+LanguageConfig::LanguageConfig() = default;
+
+QString LanguageConfig::columnNameToFieldName(const QString& column_name) const
+{
+	return m_varNaming->transform(column_name);
+}
+
+QString LanguageConfig::getTypeName(Oid dbtype) const
+{
+	return m_typeMappings->getTypeForOid(dbtype);
+}

pglablib/codebuilder/LanguageConfig.h

@@ -0,0 +1,54 @@
+#ifndef LANGUAGECONFIG_H
+#define LANGUAGECONFIG_H
+
+#include <QString>
+#include "Pgsql_oids.h"
+
+class NameManglingRules;
+class TypeMappings;
+class StructureTemplate;
+class IndentationConfig;
+/**
+ *
+ */
+class LanguageConfig {
+public:
+	LanguageConfig();
+
+	QString columnNameToFieldName(const QString& column_name) const;
+	QString getTypeName(Oid dbtype) const;
+
+	std::shared_ptr<const TypeMappings> typeMappings() const { return m_typeMappings; }
+	void setTypeMappings(std::shared_ptr<const TypeMappings> type_mappings)
+	{
+		m_typeMappings = type_mappings;
+	}
+
+	std::shared_ptr<const StructureTemplate> structureTemplate() const
+	{
+		return m_structureTemplate;
+	}
+
+	std::shared_ptr<const IndentationConfig> indentationConfig() const
+	{
+		return m_indentationConfig;
+	}
+private:
+	/** Default template for declaring a variable of the correct type.
+	 * exmaple: "{$type} {$varname};"
+	 */
+	//QString varDeclTemplate;
+	std::shared_ptr<const NameManglingRules> m_varNaming;
+	std::shared_ptr<const TypeMappings> m_typeMappings;
+	std::shared_ptr<const StructureTemplate> m_structureTemplate;
+	std::shared_ptr<const IndentationConfig> m_indentationConfig;
+
+	enum class VariableStrategy {
+		UseLocalVariables,
+		DeclareClass
+	};
+
+
+};
+
+#endif // LANGUAGECONFIG_H

pglablib/codebuilder/NameManglingRules.cpp

@@ -0,0 +1,32 @@
+#include "NameManglingRules.h"
+
+void NameManglingRules::apply(const ReplaceRule &rule, QString &in) const
+{
+	int from = 0;
+	int pos;
+	QRegularExpressionMatch match;
+	while ((pos = in.indexOf(rule.pattern, from, &match)) >= 0) {
+		int len = match.capturedLength();
+		in.replace(pos, len, rule.replace);
+		from = pos + rule.replace.size();
+		if (rule.nextToUpper)
+			in[from] = in[from].toUpper();
+	}
+}
+
+QString NameManglingRules::transform(const QString &input) const
+{
+	QString result;
+	if (caseConversion == CaseConversion::Lower)
+		result = input.toLower();
+	else if (caseConversion == CaseConversion::Upper)
+		result = input.toUpper();
+	else
+		result = input;
+
+	for (auto rule : replaceRules) {
+		apply(rule, result);
+	}
+
+	return result;
+}

pglablib/codebuilder/NameManglingRules.h

@@ -0,0 +1,50 @@
+#ifndef NAMEMANGLINGRULES_H
+#define NAMEMANGLINGRULES_H
+
+#include <QString>
+#include <QRegularExpression>
+#include <vector>
+
+/** Defines how a database result fieldname should be converted into a variable
+ * name in the target language.
+ *
+ */
+class NameManglingRules {
+public:
+	enum class CollisionHandling {
+		Restrict, ///< An error will be reported and no code generated
+		Fqn, ///< Turn into fully qualified name (table_column)
+		Number ///< A number will be appended to fields that have the same name
+	};
+
+	enum class CaseConversion {
+		AsIs,
+		Upper,
+		Lower
+	};
+
+	class ReplaceRule {
+	public:
+		QRegularExpression pattern;
+		QString replace;
+		bool nextToUpper = false;
+	};
+	using ReplaceRules = std::vector<ReplaceRule>;
+
+	ReplaceRules replaceRules;
+//		{ {"[ -_]", QRegularExpression::OptimizeOnFirstUsageOption }, "", true }
+
+	QString replaceSpaceWith; ///< default is empty string which means remove spaces
+	//CollisionHandling CollisionHandling = CollisionHandling::Restrict;
+	CaseConversion caseConversion = CaseConversion::AsIs; ///< overall case conversion rule
+	//CaseConversion caseFirstChar = CaseConversion::AsIs; ///< case of the first char
+	bool camelCase = false; ///< removes underscores and make first char after underscore uppercase
+
+	void apply(const ReplaceRule &rule, QString &in) const;
+
+	QString transform(const QString &input) const;
+
+
+};
+
+#endif // NAMEMANGLINGRULES_H

pglablib/codebuilder/StructureTemplate.cpp

@@ -0,0 +1,2 @@
+#include "StructureTemplate.h"
+

pglablib/codebuilder/StructureTemplate.h

@@ -0,0 +1,16 @@
+#ifndef STRUCTURETEMPLATE_H
+#define STRUCTURETEMPLATE_H
+
+#include <QString>
+
+class StructureTemplate {
+public:
+
+	QString m_startTemplate; // class /$structname/ {\npublic:\n
+	QString m_endTemplate; // };
+	QString m_fieldTemplate; // /$typename/ /$varname/;
+	QString m_fieldSeparator; // use when you need something between fields but not after the last field
+	int m_fieldIndentation = 1;
+};
+
+#endif // STRUCTURETEMPLATE_H

pglablib/codebuilder/TypeMappings.cpp

@@ -0,0 +1,133 @@
+#include "TypeMappings.h"
+#include "PgTypeContainer.h"
+
+//namespace {
+//	using Fallbacks = std::unordered_map<Oid, Oid>;
+
+//	Fallbacks fallbacks = {
+//		{ oid_text, oid_varchar },
+//		{ }
+//	};
+//}
+
+TypeMappings::TypeMappings() = default;
+
+TypeMappings::TypeMappings(std::initializer_list<Mapping> mappings)
+{
+	m_typeMap.insert(mappings.begin(), mappings.end());
+}
+
+QString TypeMappings::getTypeForOid(Oid oid) const
+{
+	// TODO use the catalog to determine if someting is an array or vector type.
+	// If it is lookup its element type and use the std container
+	auto res = m_typeMap.find(oid);
+	if (res != m_typeMap.end()) {
+		return res->second;
+	}
+
+	if (m_types) {
+		PgType type = m_types->getByKey(oid);
+		if (type.oid != InvalidOid && type.elem != InvalidOid) {
+			res = m_typeMap.find(type.elem);
+			QString type_string;
+			if (res == m_typeMap.end()) {
+				type_string = m_defaultStringType;
+			}
+			else {
+				type_string = res->second;
+			}
+			return QString(m_defaultContainerType).arg(type_string);
+		}
+	}
+	return m_defaultStringType;
+}
+
+void TypeMappings::setTypes(std::shared_ptr<const PgTypeContainer> types)
+{
+	m_types = types;
+}
+
+void TypeMappings::setDefaultStringType(QString str)
+{
+	m_defaultStringType = str;
+}
+
+void TypeMappings::setDefaultContainerType(QString str)
+{
+	m_defaultContainerType = str;
+}
+
+void TypeMappings::set(Oid oid, QString type)
+{
+	m_typeMap.insert_or_assign(oid, type);
+}
+
+
+
+//constexpr Oid bool_oid = 16;
+//constexpr Oid bytea_oid = 17;
+//constexpr Oid char_oid = 18;
+//constexpr Oid name_oid = 19;
+//constexpr Oid int8_oid = 20;
+//constexpr Oid int2_oid = 21;
+//constexpr Oid int4_oid = 23;
+//constexpr Oid regproc_oid = 24;
+//constexpr Oid text_oid = 25;
+//constexpr Oid oid_oid = 26;
+//constexpr Oid tid_oid = 27;
+//constexpr Oid xid_oid = 28;
+//constexpr Oid cid_oid = 29;
+//constexpr Oid json_oid = 114;
+//constexpr Oid xml_oid = 142;
+//constexpr Oid point_oid = 600;
+//constexpr Oid lseg_oid = 601;
+//constexpr Oid path_oid = 602;
+//constexpr Oid box_oid = 603;
+//constexpr Oid polygon_oid = 604;
+//constexpr Oid line_oid = 628;
+//constexpr Oid cidr_oid = 650;
+//constexpr Oid float4_oid = 700;
+//constexpr Oid float8_oid = 701;
+//constexpr Oid abstime_oid = 702;
+//constexpr Oid reltime_oid = 703;
+//constexpr Oid tinterval_oid = 704;
+//constexpr Oid circle_oid = 718;
+//constexpr Oid money_oid = 790;
+//constexpr Oid macaddr_oid = 829;
+//constexpr Oid inet_oid = 869;
+//constexpr Oid aclitem_oid = 1033;
+//constexpr Oid bpchar_oid = 1042;
+//constexpr Oid varchar_oid = 1043;
+//constexpr Oid date_oid = 1082;
+//constexpr Oid time_oid = 1083;
+//constexpr Oid timestamp_oid = 1114;
+//constexpr Oid timestamptz_oid = 1184;
+//constexpr Oid interval_oid = 1186;
+//constexpr Oid timetz_oid = 1266;
+//constexpr Oid bit_oid = 1560;
+//constexpr Oid varbit_oid = 1562;
+//constexpr Oid numeric_oid = 1700;
+//constexpr Oid refcursor_oid = 1790;
+//constexpr Oid regprocedure_oid = 2202;
+//constexpr Oid regoper_oid = 2203;
+//constexpr Oid regoperator_oid = 2204;
+//constexpr Oid regclass_oid = 2205;
+//constexpr Oid regtype_oid = 2206;
+//constexpr Oid uuid_oid = 2950;
+//constexpr Oid txid_snapshot_oid = 2970;
+//constexpr Oid pg_lsn_oid = 3220;
+//constexpr Oid tsvector_oid = 3614;
+//constexpr Oid tsquery_oid = 3615;
+//constexpr Oid gtsvector_oid = 3642;
+//constexpr Oid regconfig_oid = 3734;
+//constexpr Oid regdictionary_oid = 3769;
+//constexpr Oid jsonb_oid = 3802;
+//constexpr Oid int4range_oid = 3904;
+//constexpr Oid numrange_oid = 3906;
+//constexpr Oid tsrange_oid = 3908;
+//constexpr Oid tstzrange_oid = 3910;
+//constexpr Oid daterange_oid = 3912;
+//constexpr Oid int8range_oid = 3926;
+//constexpr Oid regnamespace_oid = 4089;
+//constexpr Oid regrole_oid = 4096;

pglablib/codebuilder/TypeMappings.h

@@ -0,0 +1,46 @@
+#ifndef TYPEMAPPINGS_H
+#define TYPEMAPPINGS_H
+
+#include <Pgsql_declare.h>
+#include <QString>
+#include <initializer_list>
+#include <unordered_map>
+
+class PgTypeContainer;
+
+class TypeMappings {
+public:
+	using TypeMap = std::unordered_map<Oid, QString>;
+	using Mapping = std::pair<Oid, QString>;
+
+	TypeMappings();
+
+	TypeMappings(std::initializer_list<Mapping> mappings);
+
+	QString getTypeForOid(Oid oid) const;
+
+	const TypeMap& typeMap() const { return m_typeMap; }
+
+	QString defaultStringType() const { return m_defaultStringType; }
+
+	void setTypes(std::shared_ptr<const PgTypeContainer> types);
+
+	void setDefaultStringType(QString str);
+
+	void setDefaultContainerType(QString str);
+
+	void set(Oid oid, QString type);
+	/** Removing a type from the mapping will reeastablish its default mapping
+	 * which in most cases is the default string type for the language.
+	 */
+	void remove(Oid oid);
+private:
+
+	TypeMap m_typeMap;
+	QString m_defaultStringType;
+	QString m_defaultContainerType; ///< This string should contain a format variable where the element type should go
+
+	std::shared_ptr<const PgTypeContainer> m_types;
+};
+
+#endif // TYPEMAPPINGS_H

pglablib/pglablib.pro

@@ -57,7 +57,14 @@ SOURCES += \
     PgAmContainer.cpp \
     PgObject.cpp \
     PgTablespace.cpp \
-    PgTablespaceContainer.cpp
+PgTablespaceContainer.cpp \
+codebuilder/LanguageConfig.cpp \
+codebuilder/CodeBuilder.cpp \
+codebuilder/NameManglingRules.cpp \
+codebuilder/DefaultConfigs.cpp \
+codebuilder/TypeMappings.cpp \
+codebuilder/IndentationConfig.cpp \
+codebuilder/StructureTemplate.cpp
 
 HEADERS += \
         Pglablib.h \
@@ -92,7 +99,14 @@ HEADERS += \
     PgAmContainer.h \
     PgObject.h \
     PgTablespace.h \
-    PgTablespaceContainer.h
+PgTablespaceContainer.h \
+codebuilder/LanguageConfig.h \
+codebuilder/CodeBuilder.h \
+codebuilder/NameManglingRules.h \
+codebuilder/DefaultConfigs.h \
+codebuilder/TypeMappings.h \
+codebuilder/IndentationConfig.h \
+codebuilder/StructureTemplate.h
 
 unix {
     target.path = /usr/lib

pgsql/Pgsql_Params.h

@@ -73,7 +73,7 @@ namespace Pgsql {
 		 *
 		 * The class takes ownership of data and will try to delete[] it.
 		 */
-		Param addText(const char *data, Oid oid=VARCHAROID);
+		Param addText(const char *data, Oid oid=varchar_oid);
 	};
 
 } // end namespace Pgsql

pgsql/Pgsql_Value.cpp

@@ -103,9 +103,9 @@ Value::operator double() const
 
 bool Value::isString() const
 {
-	return m_typ == CHAROID
+	return m_typ == char_oid
-		|| m_typ == VARCHAROID
+		|| m_typ == varchar_oid
-		|| m_typ == TEXTOID
+		|| m_typ == text_oid
 		;
 }
 

pgsql/Pgsql_declare.h

@@ -5,95 +5,95 @@
 
 namespace Pgsql {
 
-	const Oid BOOLOID			= 16;
+//	const Oid BOOLOID			= 16;
-	const Oid BYTEAOID		= 17;
+//	const Oid BYTEAOID		= 17;
-	const Oid CHAROID			= 18;
+//	const Oid CHAROID			= 18;
-	const Oid NAMEOID			= 19;
+//	const Oid NAMEOID			= 19;
-	const Oid INT8OID			= 20;
+//	const Oid INT8OID			= 20;
-	const Oid INT2OID			= 21;
+//	const Oid INT2OID			= 21;
-	const Oid INT2VECTOROID	= 22;
+//	const Oid INT2VECTOROID	= 22;
-	const Oid INT4OID			= 23;
+//	const Oid INT4OID			= 23;
-	const Oid REGPROCOID		= 24;
+//	const Oid REGPROCOID		= 24;
-	const Oid TEXTOID			= 25;
+//	const Oid TEXTOID			= 25;
-	const Oid OIDOID			= 26;
+//	const Oid OIDOID			= 26;
-	const Oid TIDOID		= 27;
+//	const Oid TIDOID		= 27;
-	const Oid XIDOID = 28;
+//	const Oid XIDOID = 28;
-	const Oid CIDOID = 29;
+//	const Oid CIDOID = 29;
-	const Oid OIDVECTOROID	= 30;
+//	const Oid OIDVECTOROID	= 30;
-	const Oid JSONOID = 114;
+//	const Oid JSONOID = 114;
-	const Oid XMLOID = 142;
+//	const Oid XMLOID = 142;
-	const Oid PGNODETREEOID	= 194;
+//	const Oid PGNODETREEOID	= 194;
-	const Oid PGDDLCOMMANDOID = 32;
+//	const Oid PGDDLCOMMANDOID = 32;
-	const Oid POINTOID		= 600;
+//	const Oid POINTOID		= 600;
-	const Oid LSEGOID			= 601;
+//	const Oid LSEGOID			= 601;
-	const Oid PATHOID			= 602;
+//	const Oid PATHOID			= 602;
-	const Oid BOXOID			= 603;
+//	const Oid BOXOID			= 603;
-	const Oid POLYGONOID		= 604;
+//	const Oid POLYGONOID		= 604;
-	const Oid LINEOID			= 628;
+//	const Oid LINEOID			= 628;
-	const Oid FLOAT4OID = 700;
+//	const Oid FLOAT4OID = 700;
-	const Oid FLOAT8OID = 701;
+//	const Oid FLOAT8OID = 701;
-	const Oid ABSTIMEOID		= 702;
+//	const Oid ABSTIMEOID		= 702;
-	const Oid RELTIMEOID		= 703;
+//	const Oid RELTIMEOID		= 703;
-	const Oid TINTERVALOID	= 704;
+//	const Oid TINTERVALOID	= 704;
-	const Oid UNKNOWNOID		= 705;
+//	const Oid UNKNOWNOID		= 705;
-	const Oid CIRCLEOID		= 718;
+//	const Oid CIRCLEOID		= 718;
-	const Oid CASHOID = 790;
+//	const Oid CASHOID = 790;
-	const Oid MACADDROID = 829;
+//	const Oid MACADDROID = 829;
-	const Oid INETOID = 869;
+//	const Oid INETOID = 869;
-	const Oid CIDROID = 650;
+//	const Oid CIDROID = 650;
-	const Oid INT2ARRAYOID		= 1005;
+//	const Oid INT2ARRAYOID		= 1005;
-	const Oid INT4ARRAYOID		= 1007;
+//	const Oid INT4ARRAYOID		= 1007;
-	const Oid TEXTARRAYOID		= 1009;
+//	const Oid TEXTARRAYOID		= 1009;
-	const Oid OIDARRAYOID			= 1028;
+//	const Oid OIDARRAYOID			= 1028;
-	const Oid FLOAT4ARRAYOID = 1021;
+//	const Oid FLOAT4ARRAYOID = 1021;
-	const Oid ACLITEMOID		= 1033;
+//	const Oid ACLITEMOID		= 1033;
-	const Oid CSTRINGARRAYOID		= 1263;
+//	const Oid CSTRINGARRAYOID		= 1263;
-	const Oid BPCHAROID		= 1042;
+//	const Oid BPCHAROID		= 1042;
-	const Oid VARCHAROID		= 1043;
+//	const Oid VARCHAROID		= 1043;
-	const Oid DATEOID			= 1082;
+//	const Oid DATEOID			= 1082;
-	const Oid TIMEOID			= 1083;
+//	const Oid TIMEOID			= 1083;
-	const Oid TIMESTAMPOID	= 1114;
+//	const Oid TIMESTAMPOID	= 1114;
-	const Oid TIMESTAMPTZOID	= 1184;
+//	const Oid TIMESTAMPTZOID	= 1184;
-	const Oid INTERVALOID		= 1186;
+//	const Oid INTERVALOID		= 1186;
-	const Oid TIMETZOID		= 1266;
+//	const Oid TIMETZOID		= 1266;
-	const Oid BITOID	 = 1560;
+//	const Oid BITOID	 = 1560;
-	const Oid VARBITOID	  = 1562;
+//	const Oid VARBITOID	  = 1562;
-	const Oid NUMERICOID		= 1700;
+//	const Oid NUMERICOID		= 1700;
-	const Oid REFCURSOROID	= 1790;
+//	const Oid REFCURSOROID	= 1790;
-	const Oid REGPROCEDUREOID = 2202;
+//	const Oid REGPROCEDUREOID = 2202;
-	const Oid REGOPEROID		= 2203;
+//	const Oid REGOPEROID		= 2203;
-	const Oid REGOPERATOROID	= 2204;
+//	const Oid REGOPERATOROID	= 2204;
-	const Oid REGCLASSOID		= 2205;
+//	const Oid REGCLASSOID		= 2205;
-	const Oid REGTYPEOID		= 2206;
+//	const Oid REGTYPEOID		= 2206;
-	const Oid REGROLEOID		= 4096;
+//	const Oid REGROLEOID		= 4096;
-	const Oid REGNAMESPACEOID		= 4089;
+//	const Oid REGNAMESPACEOID		= 4089;
-	const Oid REGTYPEARRAYOID = 2211;
+//	const Oid REGTYPEARRAYOID = 2211;
-	const Oid UUIDOID = 2950;
+//	const Oid UUIDOID = 2950;
-	const Oid LSNOID			= 3220;
+//	const Oid LSNOID			= 3220;
-	const Oid TSVECTOROID		= 3614;
+//	const Oid TSVECTOROID		= 3614;
-	const Oid GTSVECTOROID	= 3642;
+//	const Oid GTSVECTOROID	= 3642;
-	const Oid TSQUERYOID		= 3615;
+//	const Oid TSQUERYOID		= 3615;
-	const Oid REGCONFIGOID	= 3734;
+//	const Oid REGCONFIGOID	= 3734;
-	const Oid REGDICTIONARYOID	= 3769;
+//	const Oid REGDICTIONARYOID	= 3769;
-	const Oid JSONBOID = 3802;
+//	const Oid JSONBOID = 3802;
-	const Oid INT4RANGEOID		= 3904;
+//	const Oid INT4RANGEOID		= 3904;
-	const Oid RECORDOID		= 2249;
+//	const Oid RECORDOID		= 2249;
-	const Oid RECORDARRAYOID	= 2287;
+//	const Oid RECORDARRAYOID	= 2287;
-	const Oid CSTRINGOID		= 2275;
+//	const Oid CSTRINGOID		= 2275;
-	const Oid ANYOID			= 2276;
+//	const Oid ANYOID			= 2276;
-	const Oid ANYARRAYOID		= 2277;
+//	const Oid ANYARRAYOID		= 2277;
-	const Oid VOIDOID			= 2278;
+//	const Oid VOIDOID			= 2278;
-	const Oid TRIGGEROID		= 2279;
+//	const Oid TRIGGEROID		= 2279;
-	const Oid EVTTRIGGEROID		= 3838;
+//	const Oid EVTTRIGGEROID		= 3838;
-	const Oid LANGUAGE_HANDLEROID		= 2280;
+//	const Oid LANGUAGE_HANDLEROID		= 2280;
-	const Oid INTERNALOID		= 2281;
+//	const Oid INTERNALOID		= 2281;
-	const Oid OPAQUEOID		= 2282;
+//	const Oid OPAQUEOID		= 2282;
-	const Oid ANYELEMENTOID	= 2283;
+//	const Oid ANYELEMENTOID	= 2283;
-	const Oid ANYNONARRAYOID	= 2776;
+//	const Oid ANYNONARRAYOID	= 2776;
-	const Oid ANYENUMOID		= 3500;
+//	const Oid ANYENUMOID		= 3500;
-	const Oid FDW_HANDLEROID	= 3115;
+//	const Oid FDW_HANDLEROID	= 3115;
-	const Oid TSM_HANDLEROID	= 3310;
+//	const Oid TSM_HANDLEROID	= 3310;
-	const Oid ANYRANGEOID		= 3831;
+//	const Oid ANYRANGEOID		= 3831;
 
 
 	class Params;

pgsql/Pgsql_oids.cpp

@@ -163,7 +163,7 @@ namespace {
 }
 
 
-Oid Pgsql::ElemOidFromArrayOid(Oid oid)
+Oid Pgsql::ElemOidFromArrayOid(Oid oid) noexcept
 {
 
 	auto iter = std::lower_bound(g_ArrayToElem.begin(), g_ArrayToElem.end(),
@@ -173,11 +173,11 @@ Oid Pgsql::ElemOidFromArrayOid(Oid oid)
 			return l.array < r.array;
 		});
 	if (iter == g_ArrayToElem.end())
-		throw std::runtime_error("ElemOidFromArrayOid Oid not found");
+		return InvalidOid;
 	return iter->elem;
 }
 
-Oid Pgsql::ArrayOidFromElemOid(Oid oid)
+Oid Pgsql::ArrayOidFromElemOid(Oid oid) noexcept
 {
 	auto iter = std::lower_bound(g_ElemToArray.begin(), g_ElemToArray.end(),
 		ElemArray{oid, oid},
@@ -186,7 +186,6 @@ Oid Pgsql::ArrayOidFromElemOid(Oid oid)
 			return l.elem < r.elem;
 		});
 	if (iter == g_ElemToArray.end())
-		throw std::runtime_error("ElemOidFromArrayOid Oid not found");
+		return InvalidOid;
 	return iter->array;
-
 }

pgsql/Pgsql_oids.h

@@ -55,6 +55,7 @@ namespace Pgsql {
 	constexpr Oid regoperator_oid = 2204;
 	constexpr Oid regclass_oid = 2205;
 	constexpr Oid regtype_oid = 2206;
+	constexpr Oid any_oid = 2276;
 	constexpr Oid uuid_oid = 2950;
 	constexpr Oid txid_snapshot_oid = 2970;
 	constexpr Oid pg_lsn_oid = 3220;
@@ -140,8 +141,19 @@ namespace Pgsql {
 	constexpr Oid regnamespace_array_oid = 4090;
 	constexpr Oid regrole_array_oid = 4097;
 
-	Oid ElemOidFromArrayOid(Oid oid);
+	/** If oid is an array oid then it returns the corresponding element oid.
-	Oid ArrayOidFromElemOid(Oid oid);
+	 *  It oid is not an array the functions returns InvalidOid.
+	 * This function only works for the predefined postgresql types.
+	 * If you need it to work for user defined types then use the system catalogue.
+	 */
+	Oid ElemOidFromArrayOid(Oid oid) noexcept;
+	/** If oid is a non array oid then it returns the corresponding array oid.
+	 *  It oid is a array oid or oid is unknown it returns InvalidOid.
+	 * This function only works for the predefined postgresql types.
+	 * If you need it to work for user defined types then use the system catalogue.
+	 *
+	 */
+	Oid ArrayOidFromElemOid(Oid oid) noexcept;
 
 	template <typename T>
 	class OidFor {

tests/PgsqlTests/tst_Value.cpp

@@ -11,14 +11,14 @@ using namespace Pgsql;
 
 TEST(Pgsql_Value, test_int4)
 {
-	Pgsql::Value v("1", INT4OID);
+	Pgsql::Value v("1", int4_oid);
 	int i = (int)v;
 	ASSERT_EQ(i, 1);
 }
 
 TEST(Pgsql_Value, test_QDateTime)
 {
-	Pgsql::Value v("2017-10-22 12:34:56", TIMESTAMPTZOID);
+	Pgsql::Value v("2017-10-22 12:34:56", timestamptz_oid);
 	QDateTime dt = (QDateTime)v;
 	ASSERT_EQ(dt, QDateTime(QDate(2017, 10, 22), QTime(12, 34, 56)));
 }
@@ -26,7 +26,7 @@ TEST(Pgsql_Value, test_QDateTime)
 
 TEST(Pgsql_Value, test_QDateTime_2)
 {
-	Pgsql::Value v("2017-12-01 09:38:17.339817+02", TIMESTAMPTZOID);
+	Pgsql::Value v("2017-12-01 09:38:17.339817+02", timestamptz_oid);
 	QDateTime dt = (QDateTime)v;
 	QDateTime exp(QDate(2017, 12, 1), QTime(9, 38, 17, 340),
 					Qt::OffsetFromUTC, 2*3600);
@@ -35,21 +35,21 @@ TEST(Pgsql_Value, test_QDateTime_2)
 
 TEST(Pgsql_Value, test_QDate)
 {
-	Pgsql::Value v("2017-10-22", DATEOID);
+	Pgsql::Value v("2017-10-22", date_oid);
 	QDate d = v;
 	ASSERT_EQ(d, QDate(2017, 10, 22));
 }
 
 TEST(Pgsql_Value, test_QTime)
 {
-	Pgsql::Value v("12:34:56", TIMEOID);
+	Pgsql::Value v("12:34:56", time_oid);
 	QTime t = v;
 	ASSERT_EQ(t, QTime(12, 34, 56));
 }
 
 TEST(Pgsql_Value, test_QTimeMS)
 {
-	Pgsql::Value v("09:38:17.339817+02", TIMETZOID);
+	Pgsql::Value v("09:38:17.339817+02", timetz_oid);
 	QTime t = v;
 	ASSERT_EQ(t, QTime(9, 38, 17, 340));
 }
@@ -58,19 +58,19 @@ TEST(Pgsql_Value, test_QTimeMS)
 
 TEST(Pgsql_Value, isString_int4)
 {
-	Pgsql::Value v("1", INT4OID);
+	Pgsql::Value v("1", int4_oid);
 	ASSERT_EQ(v.isString(), false);
 }
 
 TEST(Pgsql_Value, isString_varchar)
 {
-	Pgsql::Value v("1", VARCHAROID);
+	Pgsql::Value v("1", varchar_oid);
 	ASSERT_EQ(v.isString(), true);
 }
 
 TEST(Pgsql_Value, getAsVector_Ints)
 {
-	Pgsql::Value v("1 2", ANYOID);
+	Pgsql::Value v("1 2", any_oid);
 	std::vector<int> r;
 	v.getAsVector<int>(std::back_inserter(r));
 
@@ -83,7 +83,7 @@ TEST(Pgsql_Value, getAsVector_Ints)
 
 TEST(Pgsql_Value, getAsArray_Ints)
 {
-	Pgsql::Value v("{1,2}", TEXTARRAYOID);
+	Pgsql::Value v("{1,2}", text_array_oid);
 	std::vector<int> r;
 	v.getAsArray<int>(std::back_inserter(r));
 
@@ -94,7 +94,7 @@ TEST(Pgsql_Value, getAsArray_Ints)
 
 TEST(Pgsql_Value, getAsArray_QDateTime)
 {
-	Pgsql::Value v("{\"2017-12-11 10:11:22\",\"2017-12-13 12:00:11\"}", TEXTARRAYOID);
+	Pgsql::Value v("{\"2017-12-11 10:11:22\",\"2017-12-13 12:00:11\"}", text_array_oid);
 	std::set<QDateTime> r;
 	v.getAsArray<QDateTime>(std::inserter(r, r.end()));
 
@@ -103,7 +103,7 @@ TEST(Pgsql_Value, getAsArray_QDateTime)
 
 TEST(Pgsql_Value, getAsArray_throws_on_NULL)
 {
-	Pgsql::Value v("{1,NULL,2}", TEXTARRAYOID);
+	Pgsql::Value v("{1,NULL,2}", text_array_oid);
 	std::vector<int> r;
 	try {
 		v.getAsArray<int>(std::back_inserter(r));
@@ -117,7 +117,7 @@ TEST(Pgsql_Value, getAsArray_throws_on_NULL)
 
 TEST(Pgsql_Value, getAsArray_default_on_NULL)
 {
-	Pgsql::Value v("{1,NULL,2}", TEXTARRAYOID);
+	Pgsql::Value v("{1,NULL,2}", text_array_oid);
 	std::vector<int> r;
 	try {
 		v.getAsArray<int>(std::back_inserter(r), -1);
@@ -132,7 +132,7 @@ TEST(Pgsql_Value, getAsArray_default_on_NULL)
 
 TEST(Pgsql_Value, getAsArray_ignore_NULL)
 {
-	Pgsql::Value v("{1,NULL,2}", TEXTARRAYOID);
+	Pgsql::Value v("{1,NULL,2}", text_array_oid);
 	std::vector<int> r;
 	try {
 		v.getAsArray<int>(std::back_inserter(r), NullHandling::Ignore);
@@ -146,7 +146,7 @@ TEST(Pgsql_Value, getAsArray_ignore_NULL)
 
 TEST(Pgsql_Value, getAsArrayOptional)
 {
-	Pgsql::Value v("{1,NULL,2}", TEXTARRAYOID);
+	Pgsql::Value v("{1,NULL,2}", text_array_oid);
 	std::vector<std::optional<int>> r;
 	try {
 		v.getAsArrayOfOptional<int>(std::back_inserter(r));

tests/pglabtests/pglabtests.pro

@@ -1,12 +1,15 @@
 include(gtest_dependency.pri)
 
 TEMPLATE = app
-CONFIG += console c++14
+CONFIG += console c++17
 CONFIG -= app_bundle
 CONFIG += thread
 CONFIG += qt
 
-QT       += core
+QT       += core widgets
+
+QMAKE_CXXFLAGS += /std:c++17
+LIBS += -LC:\VSproj\boost32\lib -LC:/PROG/LIB -lws2_32 -llibpq
 
 HEADERS +=    
 
@@ -17,7 +20,9 @@ SOURCES +=     main.cpp \
     tst_scopeguard.cpp \
     tst_CsvWriter.cpp \
     tst_PasswordManager.cpp \
-    tst_ParamJson.cpp
+    tst_ParamJson.cpp \
+    tst_CodeBuilder.cpp \
+    tst_NameManglingRules.cpp
 
 win32:CONFIG(release, debug|release): LIBS += -L$$OUT_PWD/../../core/release/ -lcore
 else:win32:CONFIG(debug, debug|release): LIBS += -L$$OUT_PWD/../../core/debug/ -lcore
@@ -60,3 +65,16 @@ else:win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$OUT_PWD/../../p
 else:win32:!win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += $$OUT_PWD/../../pglablib/release/pglablib.lib
 else:win32:!win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$OUT_PWD/../../pglablib/debug/pglablib.lib
 else:unix:!macx: PRE_TARGETDEPS += $$OUT_PWD/../../pglablib/libpglablib.a
+
+win32:CONFIG(release, debug|release): LIBS += -L$$OUT_PWD/../mygtestutils/release/ -lmygtestutils
+else:win32:CONFIG(debug, debug|release): LIBS += -L$$OUT_PWD/../mygtestutils/debug/ -lmygtestutils
+else:unix:!macx: LIBS += -L$$OUT_PWD/../mygtestutils/ -lmygtestutils
+
+INCLUDEPATH += $$PWD/../mygtestutils
+DEPENDPATH += $$PWD/../mygtestutils
+
+win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += $$OUT_PWD/../mygtestutils/release/libmygtestutils.a
+else:win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$OUT_PWD/../mygtestutils/debug/libmygtestutils.a
+else:win32:!win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += $$OUT_PWD/../mygtestutils/release/mygtestutils.lib
+else:win32:!win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$OUT_PWD/../mygtestutils/debug/mygtestutils.lib
+else:unix:!macx: PRE_TARGETDEPS += $$OUT_PWD/../mygtestutils/libmygtestutils.a

tests/pglabtests/tst_CodeBuilder.cpp

@@ -0,0 +1,231 @@
+#include <gtest/gtest.h>
+#include <gmock/gmock-matchers.h>
+#include <QRegularExpression>
+#include "PgType.h"
+#include "PgTypeContainer.h"
+#include "PrintTo_Qt.h"
+#include "codebuilder/IndentationConfig.h"
+#include "codebuilder/TypeMappings.h"
+#include "Pgsql_oids.h"
+
+using namespace testing;
+
+
+
+// Test to verify my understanding of the documentation
+TEST(QRegularExpression, doIUnderstandItCorrectly)
+{
+	QString text("abcdefghi");
+	QRegularExpression re("c(def)g");
+	QRegularExpressionMatch match;
+	int pos = text.indexOf(re, 0, &match);
+
+	ASSERT_THAT(pos, Eq(2));
+	ASSERT_THAT(match.capturedStart(), Eq(2));
+	ASSERT_THAT(match.capturedEnd(), Eq(7));
+	ASSERT_THAT(match.capturedStart(1), Eq(3));
+	ASSERT_THAT(match.capturedEnd(1), Eq(6));
+}
+
+TEST(QRegularExpression, doIUnderstandItCorrectly2)
+{
+	QString text("abc/%def%/ghi");
+	QRegularExpression re("(?:[^\\\\]|^)(\\/%([a-zA-Z0-9_-]+)%\\/)");
+	QRegularExpressionMatch match;
+	int pos = text.indexOf(re, 0, &match);
+
+	ASSERT_THAT(pos, Eq(2));
+	ASSERT_THAT(match.capturedStart(1), Eq(3));
+	ASSERT_THAT(match.capturedLength(1), Eq(7));
+	ASSERT_THAT(match.capturedStart(2), Eq(5));
+	ASSERT_THAT(match.capturedLength(2), Eq(3));
+}
+
+#include <QTextStream>
+
+void FormatToStream(QTextStream &stream, QString format, std::function<void(QTextStream &, QString)> field_callback);
+
+TEST(FormatToStream, EmptyFormat)
+{
+	QString result;
+	QTextStream stream(&result);
+	FormatToStream(stream, "", nullptr);
+	stream.flush();
+
+	ASSERT_THAT(result, Eq(QString()));
+}
+
+TEST(FormatToStream, OnlyVar)
+{
+	QString result;
+	QTextStream stream(&result);
+	FormatToStream(stream, "/%var%/",
+		[](QTextStream &stream, QString varname)
+		{
+			if (varname == "var")
+				stream << "abc";
+		});
+	stream.flush();
+
+	ASSERT_EQ(result, QString("abc"));
+}
+
+TEST(FormatToStream, StartWithVar)
+{
+	QString result;
+	QTextStream stream(&result);
+	FormatToStream(stream, "/%var%/def",
+		[](QTextStream &stream, QString varname)
+		{
+			if (varname == "var")
+				stream << "abc";
+		});
+	stream.flush();
+
+	ASSERT_EQ(result, QString("abcdef"));
+}
+
+TEST(FormatToStream, EndWithVar)
+{
+	QString result;
+	QTextStream stream(&result);
+	FormatToStream(stream, "def/%var%/",
+		[](QTextStream &stream, QString varname)
+		{
+			if (varname == "var")
+				stream << "abc";
+		});
+	stream.flush();
+
+	ASSERT_EQ(result, QString("defabc"));
+}
+
+TEST(FormatToStream, TwoVarsTogether)
+{
+	QString result;
+	QTextStream stream(&result);
+	FormatToStream(stream, "/%var1%//%var2%/",
+		[](QTextStream &stream, QString varname)
+		{
+			if (varname == "var1")
+				stream << "abc";
+			else if (varname == "var2")
+				stream << "def";
+		});
+	stream.flush();
+
+	ASSERT_EQ(result, QString("abcdef"));
+}
+
+TEST(FormatToStream, TwoVarsWithTextInBetween)
+{
+	QString result;
+	QTextStream stream(&result);
+	FormatToStream(stream, "1/%var1%/2/%var2%/3",
+		[](QTextStream &stream, QString varname)
+		{
+			if (varname == "var1")
+				stream << "abc";
+			else if (varname == "var2")
+				stream << "def";
+		});
+	stream.flush();
+
+	ASSERT_EQ(result, QString("1abc2def3"));
+}
+
+
+TEST(IndentationConfig, tab8indent4true_level1)
+{
+	IndentationConfig icfg(8, 4, true);
+	QString result = icfg.getIndentString(1);
+	ASSERT_EQ(result, "    ");
+}
+
+TEST(IndentationConfig, tab8indent4true_level2)
+{
+	IndentationConfig icfg(8, 4, true);
+	QString result = icfg.getIndentString(2);
+	ASSERT_EQ(result, "\t");
+}
+
+TEST(IndentationConfig, tab8indent4true_level3)
+{
+	IndentationConfig icfg(8, 4, true);
+	QString result = icfg.getIndentString(3);
+	ASSERT_EQ(result, "\t    ");
+}
+
+TEST(IndentationConfig, tab8indent4false_level1)
+{
+	IndentationConfig icfg(8, 4, false);
+	QString result = icfg.getIndentString(1);
+	ASSERT_EQ(result, "    ");
+}
+
+TEST(IndentationConfig, tab8indent4false_level2)
+{
+	IndentationConfig icfg(8, 4, false);
+	QString result = icfg.getIndentString(2);
+	ASSERT_EQ(result, "        ");
+}
+
+
+class TypeMappingsTest : public ::testing::Test {
+protected:
+  void SetUp() override
+  {
+	  def_str_type = "std::string";
+	  int4str = "int";
+	  int8str = "long long";
+	  tm = TypeMappings( {
+		  { Pgsql::int4_oid, int4str },
+		  { Pgsql::int8_oid, int8str }
+	  });
+	  tm.setDefaultStringType(def_str_type);
+	  tm.setDefaultContainerType("std::vector<%1>");
+  }
+
+  // void TearDown() override {}
+
+  QString def_str_type;
+  QString int4str;
+  QString int8str;
+  TypeMappings tm;
+};
+
+TEST_F(TypeMappingsTest, defStringType)
+{
+	QString result = tm.getTypeForOid(Pgsql::float4_oid);
+	ASSERT_EQ(result, def_str_type);
+}
+
+TEST_F(TypeMappingsTest, int4Type)
+{
+	QString result = tm.getTypeForOid(Pgsql::int4_oid);
+	ASSERT_EQ(result, int4str);
+}
+
+TEST_F(TypeMappingsTest, int4overideType)
+{
+	tm.set(Pgsql::int4_oid, "QString");
+	QString result = tm.getTypeForOid(Pgsql::int4_oid);
+	ASSERT_EQ(result, "QString");
+}
+
+// Need catalogue for the next test
+// Maybe we should mock this !?
+TEST_F(TypeMappingsTest, int4arrayType)
+{
+	auto types= std::make_shared<PgTypeContainer>();
+	PgType int4arr;
+	int4arr.oid = Pgsql::int4_array_oid;
+	int4arr.elem = Pgsql::int4_oid;
+	types->add(int4arr);
+
+	tm.setTypes(types);
+
+	QString result = tm.getTypeForOid(Pgsql::int4_array_oid);
+	ASSERT_EQ(result, "std::vector<int>");
+}
+

tests/pglabtests/tst_CsvWriter.cpp

@@ -3,6 +3,7 @@
 #include "CsvWriter.h"
 #include <QTextStream>
 #include <QByteArray>
+#include "PrintTo_Qt.h"
 
 using namespace testing;
 

tests/pglabtests/tst_ExplainJsonParser.cpp

@@ -2,6 +2,7 @@
 #include <gmock/gmock-matchers.h>
 #include "ExplainTreeModelItem.h"
 #include "json/json.h"
+#include "PrintTo_Qt.h"
 
 using namespace testing;
 

tests/pglabtests/tst_NameManglingRules.cpp

@@ -0,0 +1,54 @@
+#include <gtest/gtest.h>
+#include <gmock/gmock-matchers.h>
+#include "PrintTo_Qt.h"
+#include "codebuilder/NameManglingRules.h"
+#include "Pgsql_oids.h"
+
+using namespace testing;
+
+class NameManglingRulesTest : public ::testing::Test, public ::testing::WithParamInterface<
+		std::tuple<QString, NameManglingRules::CaseConversion, bool> > {
+protected:
+
+	virtual void SetUp() override
+	{
+		NameManglingRules r;
+
+		auto p = GetParam();
+		//ReplaceRules replaceRules;
+	//		{ {"[ -_]", QRegularExpression::OptimizeOnFirstUsageOption }, "", true }
+		r.replaceRules;
+
+		//QString replaceSpaceWith; ///< default is empty string which means remove spaces
+		r.replaceSpaceWith = std::get<0>(p);
+
+		//CollisionHandling CollisionHandling = CollisionHandling::Restrict;
+		//CaseConversion caseConversion = CaseConversion::AsIs; ///< overall case conversion rule
+		r.caseConversion = std::get<1>(p);
+		//CaseConversion caseFirstChar = CaseConversion::AsIs; ///< case of the first char
+		r.camelCase = std::get<2>(p); ///< removes underscores and make first char after underscore uppercase
+		rules = r;
+	}
+	NameManglingRules rules;
+};
+
+
+TEST_P(NameManglingRulesTest, test1)
+{
+	ASSERT_EQ(rules.replaceSpaceWith, std::get<0>(GetParam()));
+}
+
+TEST_P(NameManglingRulesTest, test2)
+{
+	ASSERT_EQ(rules.camelCase, std::get<2>(GetParam()));
+}
+
+INSTANTIATE_TEST_CASE_P(InstantiationName1,
+						NameManglingRulesTest,
+						::testing::Combine(
+							::testing::Values("", "_", "+"),
+							::testing::Values(NameManglingRules::CaseConversion::AsIs,
+											  NameManglingRules::CaseConversion::Lower,
+											  NameManglingRules::CaseConversion::Upper),
+							::testing::Bool()
+						));

tests/pglabtests/tst_ParamJson.cpp

@@ -2,6 +2,7 @@
 #include <gmock/gmock-matchers.h>
 #include "ParamListModel.h"
 #include "ParamListJson.h"
+#include "PrintTo_Qt.h"
 
 using namespace testing;
 

tests/pglabtests/tst_PasswordManager.cpp

@@ -1,6 +1,7 @@
 #include <gtest/gtest.h>
 #include <gmock/gmock-matchers.h>
 #include "PasswordManager.h"
+#include "PrintTo_Qt.h"
 
 using namespace testing;
 

tests/pglabtests/tst_SqlLexer.cpp

@@ -1,6 +1,7 @@
 #include <gtest/gtest.h>
 #include <gmock/gmock-matchers.h>
 #include "SqlLexer.h"
+#include "PrintTo_Qt.h"
 
 using namespace testing;
 

tests/pglabtests/tst_expected.cpp

@@ -1,6 +1,7 @@
 #include <gtest/gtest.h>
 #include <gmock/gmock-matchers.h>
 #include "Expected.h"
+#include "PrintTo_Qt.h"
 
 using namespace testing;
 

tests/pglabtests/tst_scopeguard.cpp

@@ -1,6 +1,7 @@
 #include <gtest/gtest.h>
 #include <gmock/gmock-matchers.h>
 #include "ScopeGuard.h"
+#include "PrintTo_Qt.h"
 
 using namespace testing;