Proyecto-Titulo/obelisk
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add error handling in the model files and knowledge base

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This commit is contained in:
Chris Cromer 2022-11-29 00:06:35 -03:00
parent 2ca55543ab
commit 4a6086aac5
Signed by: cromer
GPG Key ID: FA91071797BEEEC2
11 changed files with 630 additions and 306 deletions
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102
src/knowledge_base.cpp
View File

@ -1,13 +1,16 @@
#include "knowledge_base.h"
#include "models/action.h"
#include "models/entity.h"
#include "models/error.h"
#include "models/fact.h"
#include "models/rule.h"
#include "models/suggest_action.h"
#include "models/verb.h"
#include <cstring>
#include <filesystem>
#include <iostream>
#include <string>
obelisk::KnowledgeBase::KnowledgeBase(const char* filename, int flags)
{
@ -23,6 +26,8 @@ obelisk::KnowledgeBase::KnowledgeBase(const char* filename, int flags)
logSqliteError(result);
}
enableForeignKeys();
if (!dbExists)
{
createTable(obelisk::Action::createTable);
@ -42,16 +47,25 @@ obelisk::KnowledgeBase::~KnowledgeBase()
}
}
void obelisk::KnowledgeBase::createTable(std::function<const char*()> function)
/**
* @brief Enable foreign key functionality in the open database.
*
* This must always be done when the connection is opened or it will not
* enforce the foreign key constraints.
*/
void obelisk::KnowledgeBase::enableForeignKeys()
{
char* tmp;
auto result = sqlite3_exec(dbConnection_, function(), NULL, NULL, &tmp);
char* errmsg;
int result = sqlite3_exec(dbConnection_,
"PRAGMA foreign_keys = ON;",
NULL,
NULL,
&errmsg);
if (result != SQLITE_OK)
{
logSqliteError(result);
if (tmp)
if (errmsg)
{
std::string errmsg(tmp);
throw obelisk::KnowledgeBaseException(errmsg);
}
else
@ -61,53 +75,103 @@ void obelisk::KnowledgeBase::createTable(std::function<const char*()> function)
}
}
// TODO: change these to throw errors instead of return int
int obelisk::KnowledgeBase::addEntities(std::vector<obelisk::Entity>& entities)
void obelisk::KnowledgeBase::createTable(std::function<const char*()> function)
{
char* errmsg;
int result = sqlite3_exec(dbConnection_, function(), NULL, NULL, &errmsg);
if (result != SQLITE_OK)
{
logSqliteError(result);
if (errmsg)
{
throw obelisk::KnowledgeBaseException(errmsg);
}
else
{
throw obelisk::KnowledgeBaseException();
}
}
}
void obelisk::KnowledgeBase::addEntities(std::vector<obelisk::Entity>& entities)
{
for (auto& entity : entities)
{
try
{
entity.insertEntity(dbConnection_);
}
return 0;
catch (obelisk::DatabaseException::ConstraintException& exception)
{
// ignore unique constraint error
if (std::strcmp(exception.what(),
"UNIQUE constraint failed: entity.name")
!= 0)
{
throw;
}
}
}
}
int obelisk::KnowledgeBase::addVerbs(std::vector<obelisk::Verb>& verbs)
void obelisk::KnowledgeBase::addVerbs(std::vector<obelisk::Verb>& verbs)
{
for (auto& verb : verbs)
{
try
{
verb.insertVerb(dbConnection_);
}
return 0;
catch (obelisk::DatabaseException::ConstraintException& exception)
{
// ignore unique constraint error
if (std::strcmp(exception.what(),
"UNIQUE constraint failed: verb.name")
!= 0)
{
throw;
}
}
}
}
int obelisk::KnowledgeBase::addFacts(std::vector<obelisk::Fact>& facts)
void obelisk::KnowledgeBase::addFacts(std::vector<obelisk::Fact>& facts)
{
for (auto& fact : facts)
{
try
{
fact.insertFact(dbConnection_);
}
return 0;
catch (obelisk::DatabaseException::ConstraintException& exception)
{
// ignore unique constraint error
if (std::strcmp(exception.what(),
"UNIQUE constraint failed: fact.left_entity, fact.right_entity, fact.verb")
!= 0)
{
throw;
}
}
}
}
int obelisk::KnowledgeBase::getEntity(obelisk::Entity& entity)
void obelisk::KnowledgeBase::getEntity(obelisk::Entity& entity)
{
entity.selectEntity(dbConnection_);
return 0;
}
int obelisk::KnowledgeBase::getVerb(obelisk::Verb& verb)
void obelisk::KnowledgeBase::getVerb(obelisk::Verb& verb)
{
verb.selectVerb(dbConnection_);
return 0;
}
int obelisk::KnowledgeBase::getFact(obelisk::Fact& fact)
void obelisk::KnowledgeBase::getFact(obelisk::Fact& fact)
{
fact.selectFact(dbConnection_);
return 0;
}
// TODO: log files?
// TODO: log files? or just throw an error?
void obelisk::KnowledgeBase::logSqliteError(int result)
{
std::cout << sqlite3_errstr(result) << std::endl;

13
src/knowledge_base.h
View File

@ -24,6 +24,7 @@ namespace obelisk
int flags_;
void logSqliteError(int result);
void enableForeignKeys();
void createTable(std::function<const char*()> function);
public:
@ -37,13 +38,13 @@ namespace obelisk
~KnowledgeBase();
int addEntities(std::vector<obelisk::Entity>& entities);
int addVerbs(std::vector<obelisk::Verb>& verbs);
int addFacts(std::vector<obelisk::Fact>& facts);
void addEntities(std::vector<obelisk::Entity>& entities);
void addVerbs(std::vector<obelisk::Verb>& verbs);
void addFacts(std::vector<obelisk::Fact>& facts);
int getEntity(obelisk::Entity& entity);
int getVerb(obelisk::Verb& verb);
int getFact(obelisk::Fact& fact);
void getEntity(obelisk::Entity& entity);
void getVerb(obelisk::Verb& verb);
void getFact(obelisk::Fact& fact);
void getDouble(double& result, float var1, float var2);
void getFloat(float& result1, float& result2, double var);

146
src/models/entity.cpp
View File

@ -1,4 +1,5 @@
#include "models/entity.h"
#include "models/error.h"
const char* obelisk::Entity::createTable()
{
@ -11,118 +12,139 @@ const char* obelisk::Entity::createTable()
)";
}
int obelisk::Entity::selectEntity(sqlite3* dbConnection)
void obelisk::Entity::selectEntity(sqlite3* dbConnection)
{
// TODO: check if database is open
if (dbConnection == nullptr)
{
throw obelisk::DatabaseException("database isn't open");
}
sqlite3_stmt* ppStmt = nullptr;
const char* pzTail = nullptr;
auto result = sqlite3_prepare_v2(dbConnection,
"SELECT id, name FROM entity WHERE name=?;",
"SELECT id, name FROM entity WHERE name=?",
-1,
&ppStmt,
&pzTail);
nullptr);
if (result != SQLITE_OK)
{
// TODO: something went wrong throw an error
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
}
if (pzTail != nullptr)
result = sqlite3_bind_text(ppStmt, 1, getName().c_str(), -1, SQLITE_STATIC);
switch (result)
{
// TODO: Something was not used... throw an error
}
result
= sqlite3_bind_text(ppStmt, 1, getName().c_str(), -1, SQLITE_TRANSIENT);
if (result != SQLITE_OK)
{
// TODO: Something is wrong... throw an error
case SQLITE_OK :
break;
case SQLITE_TOOBIG :
throw obelisk::DatabaseException::SizeException();
break;
case SQLITE_RANGE :
throw obelisk::DatabaseException::RangeException();
break;
case SQLITE_NOMEM :
throw obelisk::DatabaseException::MemoryException();
break;
default :
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
break;
}
result = sqlite3_step(ppStmt);
if (result != SQLITE_DONE)
{
// TODO: Something is wrong... throw an error
}
if (result == SQLITE_ROW)
switch (result)
{
case SQLITE_DONE :
// no rows in the database
break;
case SQLITE_ROW :
setId(sqlite3_column_int(ppStmt, 0));
setName((char*) sqlite3_column_text(ppStmt, 1));
break;
case SQLITE_BUSY :
throw obelisk::DatabaseException::BusyException();
break;
case SQLITE_MISUSE :
throw obelisk::DatabaseException::MisuseException();
break;
default :
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
break;
}
result = sqlite3_finalize(ppStmt);
if (result != SQLITE_OK)
{
// TODO: Something is wrong... throw an error
}
return 0;
}
else
{
result = sqlite3_finalize(ppStmt);
if (result != SQLITE_OK)
{
// TODO: Something is wrong... throw an error
}
return 0;
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
}
}
int obelisk::Entity::insertEntity(sqlite3* dbConnection)
void obelisk::Entity::insertEntity(sqlite3* dbConnection)
{
// TODO: check if database is open
/*selectEntity(dbConnection);
if (getId() != 0)
if (dbConnection == nullptr)
{
// TODO: already exists in database, throw an error? Or skip past it?
return -1;
}*/
throw obelisk::DatabaseException("database isn't open");
}
sqlite3_stmt* ppStmt = nullptr;
const char* pzTail = nullptr;
auto result = sqlite3_prepare_v2(dbConnection,
"INSERT INTO entity (name) VALUES (?);",
"INSERT INTO entity (name) VALUES (?)",
-1,
&ppStmt,
&pzTail);
nullptr);
if (result != SQLITE_OK)
{
// TODO: something went wrong throw an error
}
if (pzTail != nullptr)
{
// TODO: Something was not used... throw an error
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
}
result
= sqlite3_bind_text(ppStmt, 1, getName().c_str(), -1, SQLITE_TRANSIENT);
if (result != SQLITE_OK)
switch (result)
{
// TODO: Something is wrong... throw an error
case SQLITE_OK :
break;
case SQLITE_TOOBIG :
throw obelisk::DatabaseException::SizeException();
break;
case SQLITE_RANGE :
throw obelisk::DatabaseException::RangeException();
break;
case SQLITE_NOMEM :
throw obelisk::DatabaseException::MemoryException();
break;
default :
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
break;
}
result = sqlite3_step(ppStmt);
if (result != SQLITE_DONE)
{
// TODO: Something is wrong... throw an error
}
else
switch (result)
{
case SQLITE_DONE :
setId((int) sqlite3_last_insert_rowid(dbConnection));
}
sqlite3_set_last_insert_rowid(dbConnection, 0);
break;
case SQLITE_CONSTRAINT :
throw obelisk::DatabaseException::ConstraintException(
sqlite3_errmsg(dbConnection));
case SQLITE_BUSY :
throw obelisk::DatabaseException::BusyException();
break;
case SQLITE_MISUSE :
throw obelisk::DatabaseException::MisuseException();
break;
default :
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
break;
}
result = sqlite3_finalize(ppStmt);
if (result != SQLITE_OK)
{
// TODO: Something is wrong... throw an error
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
}
return 0;
}
int& obelisk::Entity::getId()

4
src/models/entity.h
View File

@ -46,8 +46,8 @@ namespace obelisk
std::string& getName();
void setName(std::string name);
int selectEntity(sqlite3* dbConnection);
int insertEntity(sqlite3* dbConnection);
void selectEntity(sqlite3* dbConnection);
void insertEntity(sqlite3* dbConnection);
};
} // namespace obelisk

146
src/models/error.h Normal file
View File

@ -0,0 +1,146 @@
#ifndef OBELISK_MODELS_ERROR_H
#define OBELISK_MODELS_ERROR_H
#include <exception>
#include <string>
namespace obelisk
{
class DatabaseException : public std::exception
{
private:
const std::string errorMessage_;
public:
DatabaseException() :
errorMessage_("an unknown error ocurred")
{
}
DatabaseException(const int errorCode) :
errorMessage_(
"database error " + std::to_string(errorCode) + " ocurred")
{
}
DatabaseException(const std::string& errorMessage) :
errorMessage_(errorMessage)
{
}
const char* what() const noexcept
{
return errorMessage_.c_str();
}
class SizeException : public std::exception
{
private:
const std::string errorMessage_;
public:
SizeException() :
errorMessage_("size of string or blob exceeds limits")
{
}
const char* what() const noexcept
{
return errorMessage_.c_str();
}
};
class RangeException : public std::exception
{
private:
const std::string errorMessage_;
public:
RangeException() :
errorMessage_("parameter index is out of range")
{
}
const char* what() const noexcept
{
return errorMessage_.c_str();
}
};
class MemoryException : public std::exception
{
private:
const std::string errorMessage_;
public:
MemoryException() :
errorMessage_("not enough memory for operation")
{
}
const char* what() const noexcept
{
return errorMessage_.c_str();
}
};
class BusyException : public std::exception
{
private:
const std::string errorMessage_;
public:
BusyException() :
errorMessage_(
"database was busy and operation not performed")
{
}
const char* what() const noexcept
{
return errorMessage_.c_str();
}
};
class MisuseException : public std::exception
{
private:
const std::string errorMessage_;
public:
MisuseException() :
errorMessage_("misuse of the database routine")
{
}
const char* what() const noexcept
{
return errorMessage_.c_str();
}
};
class ConstraintException : public std::exception
{
private:
const std::string errorMessage_;
public:
ConstraintException() :
errorMessage_("a constraint exception occurred")
{
}
ConstraintException(const std::string& errorMessage) :
errorMessage_(errorMessage)
{
}
const char* what() const noexcept
{
return errorMessage_.c_str();
}
};
};
} // namespace obelisk
#endif

220
src/models/fact.cpp
View File

@ -1,3 +1,4 @@
#include "models/error.h"
#include "models/fact.h"
const char* obelisk::Fact::createTable()
@ -9,6 +10,7 @@ const char* obelisk::Fact::createTable()
"right_entity" INTEGER NOT NULL,
"verb" INTEGER NOT NULL,
PRIMARY KEY("id" AUTOINCREMENT),
UNIQUE("left_entity", "right_entity", "verb")
FOREIGN KEY("verb") REFERENCES "verb"("id") ON DELETE RESTRICT,
FOREIGN KEY("right_entity") REFERENCES "entity"("id") ON DELETE RESTRICT,
FOREIGN KEY("left_entity") REFERENCES "entity"("id") ON DELETE RESTRICT
@ -16,146 +18,214 @@ const char* obelisk::Fact::createTable()
)";
}
int obelisk::Fact::selectFact(sqlite3* dbConnection)
void obelisk::Fact::selectFact(sqlite3* dbConnection)
{
// TODO: check if database is open
sqlite3_stmt* ppStmt = nullptr;
const char* pzTail = nullptr;
auto result = sqlite3_prepare_v2(dbConnection,
"SELECT id, left_entity, right_entity, verb FROM fact WHERE (left_entity=? AND right_entity=? AND verb=?);",
-1,
&ppStmt,
&pzTail);
if (result != SQLITE_OK)
if (dbConnection == nullptr)
{
// TODO: something went wrong throw an error
throw obelisk::DatabaseException("database isn't open");
}
if (pzTail != nullptr)
sqlite3_stmt* ppStmt = nullptr;
auto result = sqlite3_prepare_v2(dbConnection,
"SELECT id, left_entity, right_entity, verb FROM fact WHERE (left_entity=? AND right_entity=? AND verb=?)",
-1,
&ppStmt,
nullptr);
if (result != SQLITE_OK)
{
// TODO: Something was not used... throw an error
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
}
result = sqlite3_bind_int(ppStmt, 1, getLeftEntity().getId());
if (result != SQLITE_OK)
switch (result)
{
// TODO: Something is wrong... throw an error
case SQLITE_OK :
break;
case SQLITE_TOOBIG :
throw obelisk::DatabaseException::SizeException();
break;
case SQLITE_RANGE :
throw obelisk::DatabaseException::RangeException();
break;
case SQLITE_NOMEM :
throw obelisk::DatabaseException::MemoryException();
break;
default :
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
break;
}
result = sqlite3_bind_int(ppStmt, 2, getRightEntity().getId());
if (result != SQLITE_OK)
switch (result)
{
// TODO: Something is wrong... throw an error
case SQLITE_OK :
break;
case SQLITE_TOOBIG :
throw obelisk::DatabaseException::SizeException();
break;
case SQLITE_RANGE :
throw obelisk::DatabaseException::RangeException();
break;
case SQLITE_NOMEM :
throw obelisk::DatabaseException::MemoryException();
break;
default :
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
break;
}
result = sqlite3_bind_int(ppStmt, 3, getVerb().getId());
if (result != SQLITE_OK)
switch (result)
{
// TODO: Something is wrong... throw an error
case SQLITE_OK :
break;
case SQLITE_TOOBIG :
throw obelisk::DatabaseException::SizeException();
break;
case SQLITE_RANGE :
throw obelisk::DatabaseException::RangeException();
break;
case SQLITE_NOMEM :
throw obelisk::DatabaseException::MemoryException();
break;
default :
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
break;
}
result = sqlite3_step(ppStmt);
if (result != SQLITE_DONE)
{
// TODO: Something is wrong... throw an error
}
if (result == SQLITE_ROW)
switch (result)
{
case SQLITE_DONE :
// no rows in the database
break;
case SQLITE_ROW :
setId(sqlite3_column_int(ppStmt, 0));
getLeftEntity().setId(sqlite3_column_int(ppStmt, 1));
getRightEntity().setId(sqlite3_column_int(ppStmt, 2));
getVerb().setId(sqlite3_column_int(ppStmt, 3));
break;
case SQLITE_BUSY :
throw obelisk::DatabaseException::BusyException();
break;
case SQLITE_MISUSE :
throw obelisk::DatabaseException::MisuseException();
break;
default :
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
break;
}
result = sqlite3_finalize(ppStmt);
if (result != SQLITE_OK)
{
// TODO: Something is wrong... throw an error
}
return 0;
}
else
{
result = sqlite3_finalize(ppStmt);
if (result != SQLITE_OK)
{
// TODO: Something is wrong... throw an error
}
return 0;
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
}
}
int obelisk::Fact::insertFact(sqlite3* dbConnection)
void obelisk::Fact::insertFact(sqlite3* dbConnection)
{
// TODO: make sure database is open
// check if the fact id exists, based on the ids of the entities and verb
/*selectFact(dbConnection);
if (getId() != 0)
if (dbConnection == nullptr)
{
// TODO: Verb is already in database, throw an error? Or just skip it?
return -1;
}*/
// TODO: verify that verbId, leftEntityId, and rightEntityId are not 0
throw obelisk::DatabaseException("database isn't open");
}
sqlite3_stmt* ppStmt = nullptr;
const char* pzTail = nullptr;
auto result = sqlite3_prepare_v2(dbConnection,
"INSERT INTO fact (left_entity, right_entity, verb) VALUES (?, ?, ?);",
"INSERT INTO fact (left_entity, right_entity, verb) VALUES (?, ?, ?)",
-1,
&ppStmt,
&pzTail);
nullptr);
if (result != SQLITE_OK)
{
// TODO: something went wrong throw an error
}
if (pzTail != nullptr)
{
// TODO: Something was not used... throw an error
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
}
result = sqlite3_bind_int(ppStmt, 1, getLeftEntity().getId());
if (result != SQLITE_OK)
switch (result)
{
// TODO: Something is wrong... throw an error
case SQLITE_OK :
break;
case SQLITE_TOOBIG :
throw obelisk::DatabaseException::SizeException();
break;
case SQLITE_RANGE :
throw obelisk::DatabaseException::RangeException();
break;
case SQLITE_NOMEM :
throw obelisk::DatabaseException::MemoryException();
break;
default :
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
break;
}
result = sqlite3_bind_int(ppStmt, 2, getRightEntity().getId());
if (result != SQLITE_OK)
switch (result)
{
// TODO: Something is wrong... throw an error
case SQLITE_OK :
break;
case SQLITE_TOOBIG :
throw obelisk::DatabaseException::SizeException();
break;
case SQLITE_RANGE :
throw obelisk::DatabaseException::RangeException();
break;
case SQLITE_NOMEM :
throw obelisk::DatabaseException::MemoryException();
break;
default :
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
break;
}
result = sqlite3_bind_int(ppStmt, 3, getVerb().getId());
if (result != SQLITE_OK)
switch (result)
{
// TODO: Something is wrong... throw an error
case SQLITE_OK :
break;
case SQLITE_TOOBIG :
throw obelisk::DatabaseException::SizeException();
break;
case SQLITE_RANGE :
throw obelisk::DatabaseException::RangeException();
break;
case SQLITE_NOMEM :
throw obelisk::DatabaseException::MemoryException();
break;
default :
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
break;
}
result = sqlite3_step(ppStmt);
if (result != SQLITE_DONE)
{
// TODO: Something is wrong... throw an error
}
else
switch (result)
{
case SQLITE_DONE :
setId((int) sqlite3_last_insert_rowid(dbConnection));
}
sqlite3_set_last_insert_rowid(dbConnection, 0);
break;
case SQLITE_CONSTRAINT :
throw obelisk::DatabaseException::ConstraintException(
sqlite3_errmsg(dbConnection));
case SQLITE_BUSY :
throw obelisk::DatabaseException::BusyException();
break;
case SQLITE_MISUSE :
throw obelisk::DatabaseException::MisuseException();
break;
default :
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
break;
}
result = sqlite3_finalize(ppStmt);
if (result != SQLITE_OK)
{
// TODO: Something is wrong... throw an error
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
}
return 0;
}
int& obelisk::Fact::getId()

4
src/models/fact.h
View File

@ -69,8 +69,8 @@ namespace obelisk
Verb& getVerb();
void setVerb(obelisk::Verb verb);
int selectFact(sqlite3* dbConnection);
int insertFact(sqlite3* dbConnection);
void selectFact(sqlite3* dbConnection);
void insertFact(sqlite3* dbConnection);
};
} // namespace obelisk

1
src/models/rule.cpp
View File

@ -8,6 +8,7 @@ const char* obelisk::Rule::createTable()
"fact" INTEGER NOT NULL,
"reason" INTEGER NOT NULL CHECK("reason" != "fact"),
PRIMARY KEY("id" AUTOINCREMENT),
UNIQUE("fact", "reason"),
FOREIGN KEY("fact") REFERENCES "fact"("id") ON DELETE RESTRICT,
FOREIGN KEY("reason") REFERENCES "fact"("id") ON DELETE RESTRICT
);

1
src/models/suggest_action.cpp
View File

@ -9,6 +9,7 @@ const char* obelisk::SuggestAction::createTable()
"true_action" INTEGER NOT NULL,
"false_action" INTEGER NOT NULL,
PRIMARY KEY("id" AUTOINCREMENT),
UNIQUE("fact", "true_action", "false_action"),
FOREIGN KEY("fact") REFERENCES "fact"("id") ON DELETE RESTRICT,
FOREIGN KEY("true_action") REFERENCES "action"("id") ON DELETE RESTRICT,
FOREIGN KEY("false_action") REFERENCES "action"("id") ON DELETE RESTRICT

143
src/models/verb.cpp
View File

@ -1,3 +1,4 @@
#include "models/error.h"
#include "models/verb.h"
#include <iostream>
@ -13,119 +14,137 @@ const char* obelisk::Verb::createTable()
)";
}
int obelisk::Verb::selectVerb(sqlite3* dbConnection)
void obelisk::Verb::selectVerb(sqlite3* dbConnection)
{
// TODO: check if database is open
if (dbConnection == nullptr)
{
throw obelisk::DatabaseException("database isn't open");
}
sqlite3_stmt* ppStmt = nullptr;
const char* pzTail = nullptr;
auto result = sqlite3_prepare_v2(dbConnection,
"SELECT id, name FROM verb WHERE name=?;",
"SELECT id, name FROM verb WHERE name=?",
-1,
&ppStmt,
&pzTail);
nullptr);
if (result != SQLITE_OK)
{
// TODO: something went wrong throw an error
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
}
if (pzTail != nullptr)
result = sqlite3_bind_text(ppStmt, 1, getName().c_str(), -1, SQLITE_STATIC);
switch (result)
{
// TODO: Something was not used... throw an error
}
result
= sqlite3_bind_text(ppStmt, 1, getName().c_str(), -1, SQLITE_TRANSIENT);
if (result != SQLITE_OK)
{
// TODO: Something is wrong... throw an error
case SQLITE_OK :
break;
case SQLITE_TOOBIG :
throw obelisk::DatabaseException::SizeException();
break;
case SQLITE_RANGE :
throw obelisk::DatabaseException::RangeException();
break;
case SQLITE_NOMEM :
throw obelisk::DatabaseException::MemoryException();
break;
default :
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
break;
}
result = sqlite3_step(ppStmt);
if (result != SQLITE_DONE)
{
// TODO: Something is wrong... throw an error
}
if (result == SQLITE_ROW)
switch (result)
{
case SQLITE_DONE :
// no rows in the database
break;
case SQLITE_ROW :
setId(sqlite3_column_int(ppStmt, 0));
setName((char*) sqlite3_column_text(ppStmt, 1));
break;
case SQLITE_BUSY :
throw obelisk::DatabaseException::BusyException();
break;
case SQLITE_MISUSE :
throw obelisk::DatabaseException::MisuseException();
break;
default :
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
break;
}
result = sqlite3_finalize(ppStmt);
if (result != SQLITE_OK)
{
// TODO: Something is wrong... throw an error
}
return 0;
}
else
{
result = sqlite3_finalize(ppStmt);
if (result != SQLITE_OK)
{
// TODO: Something is wrong... throw an error
}
return 0;
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
}
}
int obelisk::Verb::insertVerb(sqlite3* dbConnection)
void obelisk::Verb::insertVerb(sqlite3* dbConnection)
{
// TODO: make sure database is open
/*selectVerb(dbConnection);
if (getId() != 0)
if (dbConnection == nullptr)
{
// TODO: Verb is already in database, throw an error? Or just skip it?
return -1;
}*/
throw obelisk::DatabaseException("database isn't open");
}
sqlite3_stmt* ppStmt = nullptr;
const char* pzTail = nullptr;
auto result = sqlite3_prepare_v2(dbConnection,
"INSERT INTO verb (name) VALUES (?);",
"INSERT INTO verb (name) VALUES (?)",
-1,
&ppStmt,
&pzTail);
nullptr);
if (result != SQLITE_OK)
{
// TODO: something went wrong throw an error
}
if (pzTail != nullptr)
{
// TODO: Something was not used... throw an error
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
}
result
= sqlite3_bind_text(ppStmt, 1, getName().c_str(), -1, SQLITE_TRANSIENT);
if (result != SQLITE_OK)
switch (result)
{
// TODO: Something is wrong... throw an error
case SQLITE_OK :
break;
case SQLITE_TOOBIG :
throw obelisk::DatabaseException::SizeException();
break;
case SQLITE_RANGE :
throw obelisk::DatabaseException::RangeException();
break;
case SQLITE_NOMEM :
throw obelisk::DatabaseException::MemoryException();
break;
default :
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
break;
}
result = sqlite3_step(ppStmt);
if (result != SQLITE_DONE)
{
// TODO: Something is wrong... throw an error
}
else
switch (result)
{
case SQLITE_DONE :
setId((int) sqlite3_last_insert_rowid(dbConnection));
}
sqlite3_set_last_insert_rowid(dbConnection, 0);
break;
case SQLITE_CONSTRAINT :
throw obelisk::DatabaseException::ConstraintException(
sqlite3_errmsg(dbConnection));
case SQLITE_BUSY :
throw obelisk::DatabaseException::BusyException();
break;
case SQLITE_MISUSE :
throw obelisk::DatabaseException::MisuseException();
break;
default :
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
break;
}
result = sqlite3_finalize(ppStmt);
if (result != SQLITE_OK)
{
// TODO: Something is wrong... throw an error
throw obelisk::DatabaseException(sqlite3_errmsg(dbConnection));
}
return 0;
}
int& obelisk::Verb::getId()

4
src/models/verb.h
View File

@ -46,8 +46,8 @@ namespace obelisk
std::string& getName();
void setName(std::string name);
int selectVerb(sqlite3* dbConnection);
int insertVerb(sqlite3* dbConnection);
void selectVerb(sqlite3* dbConnection);
void insertVerb(sqlite3* dbConnection);
};
} // namespace obelisk