root/ext/pdo_sqlite/sqlite_statement.c

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DEFINITIONS

This source file includes following definitions.
  1. pdo_sqlite_stmt_dtor
  2. pdo_sqlite_stmt_execute
  3. pdo_sqlite_stmt_param_hook
  4. pdo_sqlite_stmt_fetch
  5. pdo_sqlite_stmt_describe
  6. pdo_sqlite_stmt_get_col
  7. pdo_sqlite_stmt_col_meta
  8. pdo_sqlite_stmt_cursor_closer

/*
  +----------------------------------------------------------------------+
  | PHP Version 5                                                        |
  +----------------------------------------------------------------------+
  | Copyright (c) 1997-2013 The PHP Group                                |
  +----------------------------------------------------------------------+
  | This source file is subject to version 3.01 of the PHP license,      |
  | that is bundled with this package in the file LICENSE, and is        |
  | available through the world-wide-web at the following url:           |
  | http://www.php.net/license/3_01.txt                                  |
  | If you did not receive a copy of the PHP license and are unable to   |
  | obtain it through the world-wide-web, please send a note to          |
  | license@php.net so we can mail you a copy immediately.               |
  +----------------------------------------------------------------------+
  | Author: Wez Furlong <wez@php.net>                                    |
  +----------------------------------------------------------------------+
*/

/* $Id$ */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "php.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "pdo/php_pdo.h"
#include "pdo/php_pdo_driver.h"
#include "php_pdo_sqlite.h"
#include "php_pdo_sqlite_int.h"


static int pdo_sqlite_stmt_dtor(pdo_stmt_t *stmt TSRMLS_DC)
{
        pdo_sqlite_stmt *S = (pdo_sqlite_stmt*)stmt->driver_data;

        if (S->stmt) {
                sqlite3_finalize(S->stmt);
                S->stmt = NULL;
        }
        efree(S);
        return 1;
}

static int pdo_sqlite_stmt_execute(pdo_stmt_t *stmt TSRMLS_DC)
{
        pdo_sqlite_stmt *S = (pdo_sqlite_stmt*)stmt->driver_data;

        if (stmt->executed && !S->done) {
                sqlite3_reset(S->stmt);
        }

        S->done = 0;
        switch (sqlite3_step(S->stmt)) {
                case SQLITE_ROW:
                        S->pre_fetched = 1;
                        stmt->column_count = sqlite3_data_count(S->stmt);
                        return 1;

                case SQLITE_DONE:
                        stmt->column_count = sqlite3_column_count(S->stmt);
                        stmt->row_count = sqlite3_changes(S->H->db);
                        sqlite3_reset(S->stmt);
                        S->done = 1;
                        return 1;

                case SQLITE_ERROR:
                        sqlite3_reset(S->stmt);
                case SQLITE_MISUSE:
                case SQLITE_BUSY:
                default:
                        pdo_sqlite_error_stmt(stmt);
                        return 0;
        }
}

static int pdo_sqlite_stmt_param_hook(pdo_stmt_t *stmt, struct pdo_bound_param_data *param,
                enum pdo_param_event event_type TSRMLS_DC)
{
        pdo_sqlite_stmt *S = (pdo_sqlite_stmt*)stmt->driver_data;

        switch (event_type) {
                case PDO_PARAM_EVT_EXEC_PRE:
                        if (stmt->executed && !S->done) {
                                sqlite3_reset(S->stmt);
                                S->done = 1;
                        }
                        
                        if (param->is_param) {
                                
                                if (param->paramno == -1) {
                                        param->paramno = sqlite3_bind_parameter_index(S->stmt, param->name) - 1;
                                }

                                switch (PDO_PARAM_TYPE(param->param_type)) {
                                        case PDO_PARAM_STMT:
                                                return 0;

                                        case PDO_PARAM_NULL:
                                                if (sqlite3_bind_null(S->stmt, param->paramno + 1) == SQLITE_OK) {
                                                        return 1;
                                                }
                                                pdo_sqlite_error_stmt(stmt);
                                                return 0;
                                        
                                        case PDO_PARAM_INT:
                                        case PDO_PARAM_BOOL:
                                                if (Z_TYPE_P(param->parameter) == IS_NULL) {
                                                        if (sqlite3_bind_null(S->stmt, param->paramno + 1) == SQLITE_OK) {
                                                                return 1;
                                                        }
                                                } else {
                                                        convert_to_long(param->parameter);
#if LONG_MAX > 2147483647
                                                        if (SQLITE_OK == sqlite3_bind_int64(S->stmt, param->paramno + 1, Z_LVAL_P(param->parameter))) {
                                                                return 1;
                                                        }
#else
                                                        if (SQLITE_OK == sqlite3_bind_int(S->stmt, param->paramno + 1, Z_LVAL_P(param->parameter))) {
                                                                return 1;
                                                        }
#endif
                                                }
                                                pdo_sqlite_error_stmt(stmt);
                                                return 0;
                                        
                                        case PDO_PARAM_LOB:
                                                if (Z_TYPE_P(param->parameter) == IS_RESOURCE) {
                                                        php_stream *stm;
                                                        php_stream_from_zval_no_verify(stm, &param->parameter);
                                                        if (stm) {
                                                                SEPARATE_ZVAL(&param->parameter);
                                                                Z_TYPE_P(param->parameter) = IS_STRING;
                                                                Z_STRLEN_P(param->parameter) = php_stream_copy_to_mem(stm,
                                                                        &Z_STRVAL_P(param->parameter), PHP_STREAM_COPY_ALL, 0);
                                                        } else {
                                                                pdo_raise_impl_error(stmt->dbh, stmt, "HY105", "Expected a stream resource" TSRMLS_CC);
                                                                return 0;
                                                        }
                                                } else if (Z_TYPE_P(param->parameter) == IS_NULL) {
                                                        if (sqlite3_bind_null(S->stmt, param->paramno + 1) == SQLITE_OK) {
                                                                return 1;
                                                        }
                                                        pdo_sqlite_error_stmt(stmt);
                                                        return 0;
                                                } else {
                                                        convert_to_string(param->parameter);
                                                }
                                                
                                                if (SQLITE_OK == sqlite3_bind_blob(S->stmt, param->paramno + 1,
                                                                Z_STRVAL_P(param->parameter),
                                                                Z_STRLEN_P(param->parameter),
                                                                SQLITE_STATIC)) {
                                                        return 1;       
                                                }
                                                pdo_sqlite_error_stmt(stmt);
                                                return 0;
                                                        
                                        case PDO_PARAM_STR:
                                        default:
                                                if (Z_TYPE_P(param->parameter) == IS_NULL) {
                                                        if (sqlite3_bind_null(S->stmt, param->paramno + 1) == SQLITE_OK) {
                                                                return 1;
                                                        }
                                                } else {
                                                        convert_to_string(param->parameter);
                                                        if(SQLITE_OK == sqlite3_bind_text(S->stmt, param->paramno + 1,
                                                                        Z_STRVAL_P(param->parameter),
                                                                        Z_STRLEN_P(param->parameter),
                                                                        SQLITE_STATIC)) {
                                                                return 1;       
                                                        }
                                                }
                                                pdo_sqlite_error_stmt(stmt);
                                                return 0;
                                }
                        }
                        break;

                default:
                        ;
        }
        return 1;
}

static int pdo_sqlite_stmt_fetch(pdo_stmt_t *stmt,
        enum pdo_fetch_orientation ori, long offset TSRMLS_DC)
{
        pdo_sqlite_stmt *S = (pdo_sqlite_stmt*)stmt->driver_data;
        int i;
        if (!S->stmt) {
                return 0;       
        }
        if (S->pre_fetched) {
                S->pre_fetched = 0;
                return 1;
        }
        if (S->done) {
                return 0;
        }
        i = sqlite3_step(S->stmt);
        switch (i) {
                case SQLITE_ROW:
                        return 1;

                case SQLITE_DONE:
                        S->done = 1;
                        sqlite3_reset(S->stmt);
                        return 0;

                case SQLITE_ERROR:
                        sqlite3_reset(S->stmt);
                default:
                        pdo_sqlite_error_stmt(stmt);
                        return 0;
        }
}

static int pdo_sqlite_stmt_describe(pdo_stmt_t *stmt, int colno TSRMLS_DC)
{
        pdo_sqlite_stmt *S = (pdo_sqlite_stmt*)stmt->driver_data;

        if(colno >= sqlite3_column_count(S->stmt)) {
                /* error invalid column */
                pdo_sqlite_error_stmt(stmt);
                return 0;
        }

        stmt->columns[colno].name = estrdup(sqlite3_column_name(S->stmt, colno));
        stmt->columns[colno].namelen = strlen(stmt->columns[colno].name);
        stmt->columns[colno].maxlen = 0xffffffff;
        stmt->columns[colno].precision = 0;
        
        switch (sqlite3_column_type(S->stmt, colno)) {
                case SQLITE_INTEGER:
                case SQLITE_FLOAT:
                case SQLITE3_TEXT:
                case SQLITE_BLOB:
                case SQLITE_NULL:
                default:
                        stmt->columns[colno].param_type = PDO_PARAM_STR;
                        break;
        }

        return 1;
}

static int pdo_sqlite_stmt_get_col(pdo_stmt_t *stmt, int colno, char **ptr, unsigned long *len, int *caller_frees TSRMLS_DC)
{
        pdo_sqlite_stmt *S = (pdo_sqlite_stmt*)stmt->driver_data;
        if (!S->stmt) {
                return 0;
        }
        if(colno >= sqlite3_data_count(S->stmt)) {
                /* error invalid column */
                pdo_sqlite_error_stmt(stmt);
                return 0;
        }
        switch (sqlite3_column_type(S->stmt, colno)) {
                case SQLITE_NULL:
                        *ptr = NULL;
                        *len = 0;
                        return 1;

                case SQLITE_BLOB:
                        *ptr = (char*)sqlite3_column_blob(S->stmt, colno);
                        *len = sqlite3_column_bytes(S->stmt, colno);
                        return 1;

                default:
                        *ptr = (char*)sqlite3_column_text(S->stmt, colno);
                        *len = sqlite3_column_bytes(S->stmt, colno);
                        return 1;
        }
}

static int pdo_sqlite_stmt_col_meta(pdo_stmt_t *stmt, long colno, zval *return_value TSRMLS_DC)
{
        pdo_sqlite_stmt *S = (pdo_sqlite_stmt*)stmt->driver_data;
        const char *str;
        zval *flags;
        
        if (!S->stmt) {
                return FAILURE;
        }
        if(colno >= sqlite3_data_count(S->stmt)) {
                /* error invalid column */
                pdo_sqlite_error_stmt(stmt);
                return FAILURE;
        }

        array_init(return_value);
        MAKE_STD_ZVAL(flags);
        array_init(flags);

        switch (sqlite3_column_type(S->stmt, colno)) {
                case SQLITE_NULL:
                        add_assoc_string(return_value, "native_type", "null", 1);
                        break;

                case SQLITE_FLOAT:
                        add_assoc_string(return_value, "native_type", "double", 1);
                        break;

                case SQLITE_BLOB:
                        add_next_index_string(flags, "blob", 1);
                case SQLITE_TEXT:
                        add_assoc_string(return_value, "native_type", "string", 1);
                        break;

                case SQLITE_INTEGER:
                        add_assoc_string(return_value, "native_type", "integer", 1);
                        break;
        }

        str = sqlite3_column_decltype(S->stmt, colno);
        if (str) {
                add_assoc_string(return_value, "sqlite:decl_type", (char *)str, 1);
        }

#ifdef SQLITE_ENABLE_COLUMN_METADATA
        str = sqlite3_column_table_name(S->stmt, colno);
        if (str) {
                add_assoc_string(return_value, "table", (char *)str, 1);
        }
#endif

        add_assoc_zval(return_value, "flags", flags);

        return SUCCESS;
}

static int pdo_sqlite_stmt_cursor_closer(pdo_stmt_t *stmt TSRMLS_DC)
{
        pdo_sqlite_stmt *S = (pdo_sqlite_stmt*)stmt->driver_data;
        sqlite3_reset(S->stmt);
        return 1;
}

struct pdo_stmt_methods sqlite_stmt_methods = {
        pdo_sqlite_stmt_dtor,
        pdo_sqlite_stmt_execute,
        pdo_sqlite_stmt_fetch,
        pdo_sqlite_stmt_describe,
        pdo_sqlite_stmt_get_col,
        pdo_sqlite_stmt_param_hook,
        NULL, /* set_attr */
        NULL, /* get_attr */
        pdo_sqlite_stmt_col_meta,
        NULL, /* next_rowset */
        pdo_sqlite_stmt_cursor_closer
};

/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * End:
 * vim600: noet sw=4 ts=4 fdm=marker
 * vim<600: noet sw=4 ts=4
 */

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