From 409aeefb61795aa8f524d4371800a5bebb66a2e4 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Sun, 1 Jan 2017 20:08:22 +0000
Subject: Use command options statement hash when it's available

---
 libpqpp/pq-bulkselectcommand.cpp | 4 ++--
 libpqpp/pq-bulkselectcommand.h   | 2 +-
 libpqpp/pq-connection.cpp        | 8 ++++----
 libpqpp/pq-modifycommand.cpp     | 4 ++--
 libpqpp/pq-modifycommand.h       | 2 +-
 libpqpp/pq-prepared.cpp          | 4 ++--
 libpqpp/pq-prepared.h            | 4 +++-
 7 files changed, 15 insertions(+), 13 deletions(-)

diff --git a/libpqpp/pq-bulkselectcommand.cpp b/libpqpp/pq-bulkselectcommand.cpp
index 8b669f4..466eaaf 100644
--- a/libpqpp/pq-bulkselectcommand.cpp
+++ b/libpqpp/pq-bulkselectcommand.cpp
@@ -3,10 +3,10 @@
 #include "pq-column.h"
 #include "pq-error.h"
 
-PQ::BulkSelectCommand::BulkSelectCommand(Connection * conn, const std::string & sql, unsigned int no) :
+PQ::BulkSelectCommand::BulkSelectCommand(Connection * conn, const std::string & sql, unsigned int no, const DB::CommandOptions * opts) :
 	DB::Command(sql),
 	DB::SelectCommand(sql),
-	PQ::PreparedStatement(conn, sql, no),
+	PQ::PreparedStatement(conn, sql, no, opts),
 	executed(false)
 {
 }
diff --git a/libpqpp/pq-bulkselectcommand.h b/libpqpp/pq-bulkselectcommand.h
index 58b01aa..e4775d4 100644
--- a/libpqpp/pq-bulkselectcommand.h
+++ b/libpqpp/pq-bulkselectcommand.h
@@ -12,7 +12,7 @@ namespace PQ {
 	class Column;
 	class BulkSelectCommand : public DB::SelectCommand, public SelectBase, public PreparedStatement {
 		public:
-			BulkSelectCommand(Connection *, const std::string & sql, unsigned int no);
+			BulkSelectCommand(Connection *, const std::string & sql, unsigned int no, const DB::CommandOptions *);
 			virtual ~BulkSelectCommand();
 
 			bool fetch() override;
diff --git a/libpqpp/pq-connection.cpp b/libpqpp/pq-connection.cpp
index ec53981..590435e 100644
--- a/libpqpp/pq-connection.cpp
+++ b/libpqpp/pq-connection.cpp
@@ -97,19 +97,19 @@ PQ::Connection::ping() const
 
 
 DB::SelectCommand *
-PQ::Connection::newSelectCommand(const std::string & sql, const DB::CommandOptions *)
+PQ::Connection::newSelectCommand(const std::string & sql, const DB::CommandOptions * opts)
 {
 	// Yes, this is a hack
 	if (sql.find("libdbpp:no-cursor") != (std::string::size_type)-1) {
-		return new BulkSelectCommand(this, sql, pstmntNo++);
+		return new BulkSelectCommand(this, sql, pstmntNo++, opts);
 	}
 	return new CursorSelectCommand(this, sql, pstmntNo++);
 }
 
 DB::ModifyCommand *
-PQ::Connection::newModifyCommand(const std::string & sql, const DB::CommandOptions *)
+PQ::Connection::newModifyCommand(const std::string & sql, const DB::CommandOptions * opts)
 {
-	return new ModifyCommand(this, sql, pstmntNo++);
+	return new ModifyCommand(this, sql, pstmntNo++, opts);
 }
 
 bool
diff --git a/libpqpp/pq-modifycommand.cpp b/libpqpp/pq-modifycommand.cpp
index 4cc31d2..f8e4d63 100644
--- a/libpqpp/pq-modifycommand.cpp
+++ b/libpqpp/pq-modifycommand.cpp
@@ -3,10 +3,10 @@
 #include <stdlib.h>
 #include "pq-connection.h"
 
-PQ::ModifyCommand::ModifyCommand(Connection * conn, const std::string & sql, unsigned int no) :
+PQ::ModifyCommand::ModifyCommand(Connection * conn, const std::string & sql, unsigned int no, const DB::CommandOptions * opts) :
 	DB::Command(sql),
 	DB::ModifyCommand(sql),
-	PQ::PreparedStatement(conn, sql, no)
+	PQ::PreparedStatement(conn, sql, no, opts)
 {
 }
 
diff --git a/libpqpp/pq-modifycommand.h b/libpqpp/pq-modifycommand.h
index ef50261..4f0a481 100644
--- a/libpqpp/pq-modifycommand.h
+++ b/libpqpp/pq-modifycommand.h
@@ -8,7 +8,7 @@
 namespace PQ {
 	class ModifyCommand : public DB::ModifyCommand, public PreparedStatement {
 		public:
-			ModifyCommand(Connection *, const std::string & sql, unsigned int no);
+			ModifyCommand(Connection *, const std::string & sql, unsigned int no, const DB::CommandOptions *);
 			virtual ~ModifyCommand();
 
 			unsigned int execute(bool) override;
diff --git a/libpqpp/pq-prepared.cpp b/libpqpp/pq-prepared.cpp
index 4cd4540..bdf2a7d 100644
--- a/libpqpp/pq-prepared.cpp
+++ b/libpqpp/pq-prepared.cpp
@@ -1,9 +1,10 @@
 #include "pq-prepared.h"
 #include "pq-connection.h"
 
-PQ::PreparedStatement::PreparedStatement(Connection * c, const std::string & sql, unsigned int no) :
+PQ::PreparedStatement::PreparedStatement(Connection * c, const std::string & sql, unsigned int no, const DB::CommandOptions * opts) :
 	DB::Command(sql),
 	Command(c, sql, no),
+	hash(opts && opts->hash ? *opts->hash : std::hash<std::string>()(sql)),
 	pstmt(nullptr)
 {
 }
@@ -14,7 +15,6 @@ PQ::PreparedStatement::prepare() const
 	if (pstmt) {
 		return pstmt;
 	}
-	auto hash(std::hash<std::string>()(sql));
 	auto i = c->preparedStatements.find(hash);
 	if (i != c->preparedStatements.end()) {
 		return (pstmt = i->second.c_str());
diff --git a/libpqpp/pq-prepared.h b/libpqpp/pq-prepared.h
index 1f6e028..0f745c9 100644
--- a/libpqpp/pq-prepared.h
+++ b/libpqpp/pq-prepared.h
@@ -2,14 +2,16 @@
 #define stuff
 
 #include "pq-command.h"
+#include "pq-connection.h"
 
 namespace PQ {
 	class PreparedStatement : public Command {
 		protected:
-			PreparedStatement(Connection *, const std::string &, unsigned int);
+			PreparedStatement(Connection *, const std::string &, unsigned int, const DB::CommandOptions *);
 			virtual ~PreparedStatement() = default;
 
 			const char * prepare() const;
+			Connection::StatementHash hash;
 			mutable const char * pstmt;
 	};
 }
-- 
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