Sweden-Number/dlls/msi/insert.c

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/*
* Implementation of the Microsoft Installer (msi.dll)
*
* Copyright 2004 Mike McCormack for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "winerror.h"
#include "wine/debug.h"
#include "wine/unicode.h"
#include "msi.h"
#include "msiquery.h"
#include "objbase.h"
#include "objidl.h"
#include "msipriv.h"
#include "winnls.h"
#include "query.h"
WINE_DEFAULT_DEBUG_CHANNEL(msidb);
/* below is the query interface to a table */
typedef struct tagMSIINSERTVIEW
{
MSIVIEW view;
MSIVIEW *table;
MSIDATABASE *db;
BOOL bIsTemp;
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MSIVIEW *sv;
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column_info *vals;
} MSIINSERTVIEW;
static UINT INSERT_fetch_int( struct tagMSIVIEW *view, UINT row, UINT col, UINT *val )
{
MSIINSERTVIEW *iv = (MSIINSERTVIEW*)view;
TRACE("%p %d %d %p\n", iv, row, col, val );
return ERROR_FUNCTION_FAILED;
}
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/*
* msi_query_merge_record
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*
* Merge a value_list and a record to create a second record.
* Replace wildcard entries in the valuelist with values from the record
*/
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MSIRECORD *msi_query_merge_record( UINT fields, const column_info *vl, MSIRECORD *rec )
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{
MSIRECORD *merged;
DWORD wildcard_count = 1, i;
merged = MSI_CreateRecord( fields );
for( i=1; i <= fields; i++ )
{
if( !vl )
{
TRACE("Not enough elements in the list to insert\n");
goto err;
}
switch( vl->val->type )
{
case EXPR_SVAL:
TRACE("field %d -> %s\n", i, debugstr_w(vl->val->u.sval));
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MSI_RecordSetStringW( merged, i, vl->val->u.sval );
break;
case EXPR_IVAL:
MSI_RecordSetInteger( merged, i, vl->val->u.ival );
break;
case EXPR_WILDCARD:
if( !rec )
goto err;
MSI_RecordCopyField( rec, wildcard_count, merged, i );
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wildcard_count++;
break;
default:
ERR("Unknown expression type %d\n", vl->val->type);
}
vl = vl->next;
}
return merged;
err:
msiobj_release( &merged->hdr );
return NULL;
}
/* checks to see if the column order specified in the INSERT query
* matches the column order of the table
*/
static BOOL msi_columns_in_order(MSIINSERTVIEW *iv, UINT col_count)
{
LPCWSTR a, b;
UINT i;
for (i = 1; i <= col_count; i++)
{
iv->sv->ops->get_column_info(iv->sv, i, &a, NULL, NULL, NULL);
iv->table->ops->get_column_info(iv->table, i, &b, NULL, NULL, NULL);
if (strcmpW( a, b )) return FALSE;
}
return TRUE;
}
/* rearranges the data in the record to be inserted based on column order,
* and pads the record for any missing columns in the INSERT query
*/
static UINT msi_arrange_record(MSIINSERTVIEW *iv, MSIRECORD **values)
{
MSIRECORD *padded;
UINT col_count, val_count;
UINT r, i, colidx;
LPCWSTR a, b;
r = iv->table->ops->get_dimensions(iv->table, NULL, &col_count);
if (r != ERROR_SUCCESS)
return r;
val_count = MSI_RecordGetFieldCount(*values);
/* check to see if the columns are arranged already
* to avoid unnecessary copying
*/
if (col_count == val_count && msi_columns_in_order(iv, col_count))
return ERROR_SUCCESS;
padded = MSI_CreateRecord(col_count);
if (!padded)
return ERROR_OUTOFMEMORY;
for (colidx = 1; colidx <= val_count; colidx++)
{
r = iv->sv->ops->get_column_info(iv->sv, colidx, &a, NULL, NULL, NULL);
if (r != ERROR_SUCCESS)
goto err;
for (i = 1; i <= col_count; i++)
{
r = iv->table->ops->get_column_info(iv->table, i, &b, NULL,
NULL, NULL);
if (r != ERROR_SUCCESS)
goto err;
if (!strcmpW( a, b ))
{
MSI_RecordCopyField(*values, colidx, padded, i);
break;
}
}
}
msiobj_release(&(*values)->hdr);
*values = padded;
return ERROR_SUCCESS;
err:
msiobj_release(&padded->hdr);
return r;
}
static BOOL row_has_null_primary_keys(MSIINSERTVIEW *iv, MSIRECORD *row)
{
UINT r, i, col_count, type;
r = iv->table->ops->get_dimensions( iv->table, NULL, &col_count );
if (r != ERROR_SUCCESS)
return FALSE;
for (i = 1; i <= col_count; i++)
{
r = iv->table->ops->get_column_info(iv->table, i, NULL, &type,
NULL, NULL);
if (r != ERROR_SUCCESS)
return FALSE;
if (!(type & MSITYPE_KEY))
continue;
if (MSI_RecordIsNull(row, i))
return TRUE;
}
return FALSE;
}
static UINT INSERT_execute( struct tagMSIVIEW *view, MSIRECORD *record )
{
MSIINSERTVIEW *iv = (MSIINSERTVIEW*)view;
UINT r, row = -1, col_count = 0;
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MSIVIEW *sv;
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MSIRECORD *values = NULL;
TRACE("%p %p\n", iv, record );
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sv = iv->sv;
if( !sv )
return ERROR_FUNCTION_FAILED;
r = sv->ops->execute( sv, 0 );
TRACE("sv execute returned %x\n", r);
if( r )
return r;
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r = sv->ops->get_dimensions( sv, NULL, &col_count );
if( r )
goto err;
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/*
* Merge the wildcard values into the list of values provided
* in the query, and create a record containing both.
*/
values = msi_query_merge_record( col_count, iv->vals, record );
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if( !values )
goto err;
r = msi_arrange_record( iv, &values );
if( r != ERROR_SUCCESS )
goto err;
/* rows with NULL primary keys are inserted at the beginning of the table */
if( row_has_null_primary_keys( iv, values ) )
row = 0;
r = iv->table->ops->insert_row( iv->table, values, row, iv->bIsTemp );
err:
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if( values )
msiobj_release( &values->hdr );
return r;
}
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static UINT INSERT_close( struct tagMSIVIEW *view )
{
MSIINSERTVIEW *iv = (MSIINSERTVIEW*)view;
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MSIVIEW *sv;
TRACE("%p\n", iv);
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sv = iv->sv;
if( !sv )
return ERROR_FUNCTION_FAILED;
return sv->ops->close( sv );
}
static UINT INSERT_get_dimensions( struct tagMSIVIEW *view, UINT *rows, UINT *cols )
{
MSIINSERTVIEW *iv = (MSIINSERTVIEW*)view;
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MSIVIEW *sv;
TRACE("%p %p %p\n", iv, rows, cols );
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sv = iv->sv;
if( !sv )
return ERROR_FUNCTION_FAILED;
return sv->ops->get_dimensions( sv, rows, cols );
}
static UINT INSERT_get_column_info( struct tagMSIVIEW *view, UINT n, LPCWSTR *name,
UINT *type, BOOL *temporary, LPCWSTR *table_name )
{
MSIINSERTVIEW *iv = (MSIINSERTVIEW*)view;
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MSIVIEW *sv;
TRACE("%p %d %p %p %p %p\n", iv, n, name, type, temporary, table_name );
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sv = iv->sv;
if( !sv )
return ERROR_FUNCTION_FAILED;
return sv->ops->get_column_info( sv, n, name, type, temporary, table_name );
}
static UINT INSERT_modify( struct tagMSIVIEW *view, MSIMODIFY eModifyMode, MSIRECORD *rec, UINT row)
{
MSIINSERTVIEW *iv = (MSIINSERTVIEW*)view;
TRACE("%p %d %p\n", iv, eModifyMode, rec );
return ERROR_FUNCTION_FAILED;
}
static UINT INSERT_delete( struct tagMSIVIEW *view )
{
MSIINSERTVIEW *iv = (MSIINSERTVIEW*)view;
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MSIVIEW *sv;
TRACE("%p\n", iv );
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sv = iv->sv;
if( sv )
sv->ops->delete( sv );
msiobj_release( &iv->db->hdr );
msi_free( iv );
return ERROR_SUCCESS;
}
static UINT INSERT_find_matching_rows( struct tagMSIVIEW *view, UINT col,
UINT val, UINT *row, MSIITERHANDLE *handle )
{
TRACE("%p, %d, %u, %p\n", view, col, val, *handle);
return ERROR_FUNCTION_FAILED;
}
static const MSIVIEWOPS insert_ops =
{
INSERT_fetch_int,
NULL,
NULL,
NULL,
NULL,
NULL,
INSERT_execute,
INSERT_close,
INSERT_get_dimensions,
INSERT_get_column_info,
INSERT_modify,
INSERT_delete,
INSERT_find_matching_rows,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
};
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static UINT count_column_info( const column_info *ci )
{
UINT n = 0;
for ( ; ci; ci = ci->next )
n++;
return n;
}
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UINT INSERT_CreateView( MSIDATABASE *db, MSIVIEW **view, LPCWSTR table,
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column_info *columns, column_info *values, BOOL temp )
{
MSIINSERTVIEW *iv = NULL;
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UINT r;
MSIVIEW *tv = NULL, *sv = NULL;
TRACE("%p\n", iv );
/* there should be one value for each column */
if ( count_column_info( columns ) != count_column_info(values) )
return ERROR_BAD_QUERY_SYNTAX;
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r = TABLE_CreateView( db, table, &tv );
if( r != ERROR_SUCCESS )
return r;
r = SELECT_CreateView( db, &sv, tv, columns );
if( r != ERROR_SUCCESS )
{
if( tv )
tv->ops->delete( tv );
return r;
}
iv = msi_alloc_zero( sizeof *iv );
if( !iv )
return ERROR_FUNCTION_FAILED;
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/* fill the structure */
iv->view.ops = &insert_ops;
msiobj_addref( &db->hdr );
iv->table = tv;
iv->db = db;
iv->vals = values;
iv->bIsTemp = temp;
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iv->sv = sv;
*view = (MSIVIEW*) iv;
return ERROR_SUCCESS;
}