select.c File Reference

#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "winerror.h"
#include "wine/debug.h"
#include "msi.h"
#include "msiquery.h"
#include "objbase.h"
#include "objidl.h"
#include "msipriv.h"
#include "winnls.h"
#include "query.h"

Include dependency graph for select.c:

Go to the source code of this file.

Classes
struct	tagMSISELECTVIEW

Typedefs
typedef struct tagMSISELECTVIEW	MSISELECTVIEW

Functions
	WINE_DEFAULT_DEBUG_CHANNEL (msidb)
static UINT	translate_record (MSISELECTVIEW *sv, MSIRECORD *in, MSIRECORD **out)
static UINT	SELECT_fetch_int (struct tagMSIVIEW *view, UINT row, UINT col, UINT *val)
static UINT	SELECT_fetch_stream (struct tagMSIVIEW *view, UINT row, UINT col, IStream **stm)
static UINT	SELECT_set_row (struct tagMSIVIEW *view, UINT row, MSIRECORD *rec, UINT mask)
static UINT	SELECT_insert_row (struct tagMSIVIEW *view, MSIRECORD *record, UINT row, BOOL temporary)
static UINT	SELECT_execute (struct tagMSIVIEW *view, MSIRECORD *record)
static UINT	SELECT_close (struct tagMSIVIEW *view)
static UINT	SELECT_get_dimensions (struct tagMSIVIEW *view, UINT *rows, UINT *cols)
static UINT	SELECT_get_column_info (struct tagMSIVIEW *view, UINT n, LPCWSTR *name, UINT *type, BOOL *temporary, LPCWSTR *table_name)
UINT	msi_select_update (MSIVIEW *view, MSIRECORD *rec, UINT row)
static UINT	SELECT_modify (struct tagMSIVIEW *view, MSIMODIFY mode, MSIRECORD *rec, UINT row)
static UINT	SELECT_delete (struct tagMSIVIEW *view)
static UINT	SELECT_AddColumn (MSISELECTVIEW *sv, LPCWSTR name, LPCWSTR table_name)
static int	select_count_columns (const column_info *col)
UINT	SELECT_CreateView (MSIDATABASE *db, MSIVIEW **view, MSIVIEW *table, const column_info *columns)

Variables
static const MSIVIEWOPS	select_ops

Typedef Documentation

MSISELECTVIEW

typedef struct tagMSISELECTVIEW MSISELECTVIEW

Function Documentation

msi_select_update()

UINT msi_select_update	(	MSIVIEW *	view,
		MSIRECORD *	rec,
		UINT	row
	)

Definition at line 249 of file select.c.

{
    MSISELECTVIEW *sv = (MSISELECTVIEW*)view;
    UINT r, i, col, type, val;
    IStream *stream;
    LPCWSTR str;

    for (i = 0; i < sv->num_cols; i++)
    {
        col = sv->cols[i];

        r = SELECT_get_column_info(view, i + 1, NULL, &type, NULL, NULL);
        if (r != ERROR_SUCCESS)
        {
            ERR("Failed to get column information: %d\n", r);
            return r;
        }

        if (MSITYPE_IS_BINARY(type))
        {
            if (MSI_RecordGetIStream(rec, i + 1, &stream))
                return ERROR_FUNCTION_FAILED;
            r = sv->table->ops->set_stream(sv->table, row, col, stream);
        }
        else if (type & MSITYPE_STRING)
        {
            int len;
            str = msi_record_get_string(rec, i + 1, &len);
            r = sv->table->ops->set_string(sv->table, row, col, str, len);
        }
        else
        {
            val = MSI_RecordGetInteger(rec, i + 1);
            r = sv->table->ops->set_int(sv->table, row, col, val);
        }

        if (r != ERROR_SUCCESS)
        {
            ERR("Failed to modify record: %d\n", r);
            return r;
        }
    }

    return ERROR_SUCCESS;
}

Referenced by SELECT_modify(), and UPDATE_execute().

SELECT_AddColumn()

static UINT SELECT_AddColumn ( MSISELECTVIEW *  sv, LPCWSTR  name, LPCWSTR  table_name  )

static

Definition at line 375 of file select.c.

{
    UINT r, n;
    MSIVIEW *table;

    TRACE("%p adding %s.%s\n", sv, debugstr_w( table_name ),
          debugstr_w( name ));

    if( sv->view.ops != &select_ops )
        return ERROR_FUNCTION_FAILED;

    table = sv->table;
    if( !table )
        return ERROR_FUNCTION_FAILED;
    if( !table->ops->get_dimensions )
        return ERROR_FUNCTION_FAILED;
    if( !table->ops->get_column_info )
        return ERROR_FUNCTION_FAILED;

    if( sv->num_cols >= sv->max_cols )
        return ERROR_FUNCTION_FAILED;

    if ( !name[0] ) n = 0;
    else
    {
        r = VIEW_find_column( table, name, table_name, &n );
        if( r != ERROR_SUCCESS )
            return r;
    }

    sv->cols[sv->num_cols] = n;
    TRACE("Translating column %s from %d -> %d\n",
          debugstr_w( name ), sv->num_cols, n);

    sv->num_cols++;

    return ERROR_SUCCESS;
}

Referenced by SELECT_CreateView().

SELECT_close()

static UINT SELECT_close ( struct tagMSIVIEW *  view )

static

Definition at line 196 of file select.c.

{
    MSISELECTVIEW *sv = (MSISELECTVIEW*)view;

    TRACE("%p\n", sv );

    if( !sv->table )
         return ERROR_FUNCTION_FAILED;

    return sv->table->ops->close( sv->table );
}

select_count_columns()

static int select_count_columns ( const column_info *  col )

static

Definition at line 415 of file select.c.

{
    int n;
    for (n = 0; col; col = col->next)
        n++;
    return n;
}

Referenced by SELECT_CreateView().

SELECT_CreateView()

UINT SELECT_CreateView	(	MSIDATABASE *	db,
		MSIVIEW **	view,
		MSIVIEW *	table,
		const column_info *	columns
	)

Definition at line 423 of file select.c.

{
    MSISELECTVIEW *sv = NULL;
    UINT count = 0, r = ERROR_SUCCESS;

    TRACE("%p\n", sv );

    count = select_count_columns( columns );

    sv = msi_alloc_zero( FIELD_OFFSET( MSISELECTVIEW, cols[count] ));
    if( !sv )
        return ERROR_FUNCTION_FAILED;

    /* fill the structure */
    sv->view.ops = &select_ops;
    sv->db = db;
    sv->table = table;
    sv->num_cols = 0;
    sv->max_cols = count;

    while( columns )
    {
        r = SELECT_AddColumn( sv, columns->column, columns->table );
        if( r )
            break;
        columns = columns->next;
    }

    if( r == ERROR_SUCCESS )
        *view = &sv->view;
    else
        msi_free( sv );

    return r;
}

Referenced by INSERT_CreateView(), and UPDATE_CreateView().

SELECT_delete()

static UINT SELECT_delete ( struct tagMSIVIEW *  view )

static

Definition at line 337 of file select.c.

{
    MSISELECTVIEW *sv = (MSISELECTVIEW*)view;

    TRACE("%p\n", sv );

    if( sv->table )
        sv->table->ops->delete( sv->table );
    sv->table = NULL;

    msi_free( sv );

    return ERROR_SUCCESS;
}

SELECT_execute()

static UINT SELECT_execute ( struct tagMSIVIEW *  view, MSIRECORD *  record  )

static

Definition at line 184 of file select.c.

{
    MSISELECTVIEW *sv = (MSISELECTVIEW*)view;

    TRACE("%p %p\n", sv, record);

    if( !sv->table )
         return ERROR_FUNCTION_FAILED;

    return sv->table->ops->execute( sv->table, record );
}

SELECT_fetch_int()

static UINT SELECT_fetch_int ( struct tagMSIVIEW *  view, UINT  row, UINT  col, UINT *  val  )

static

Definition at line 75 of file select.c.

{
    MSISELECTVIEW *sv = (MSISELECTVIEW*)view;

    TRACE("%p %d %d %p\n", sv, row, col, val );

    if( !sv->table )
         return ERROR_FUNCTION_FAILED;

    if( !col || col > sv->num_cols )
         return ERROR_FUNCTION_FAILED;

    col = sv->cols[ col - 1 ];
    if( !col )
    {
        *val = 0;
        return ERROR_SUCCESS;
    }
    return sv->table->ops->fetch_int( sv->table, row, col, val );
}

SELECT_fetch_stream()

static UINT SELECT_fetch_stream ( struct tagMSIVIEW *  view, UINT  row, UINT  col, IStream **  stm  )

static

Definition at line 96 of file select.c.

{
    MSISELECTVIEW *sv = (MSISELECTVIEW*)view;

    TRACE("%p %d %d %p\n", sv, row, col, stm );

    if( !sv->table )
         return ERROR_FUNCTION_FAILED;

    if( !col || col > sv->num_cols )
         return ERROR_FUNCTION_FAILED;

    col = sv->cols[ col - 1 ];
    if( !col )
    {
        *stm = NULL;
        return ERROR_SUCCESS;
    }
    return sv->table->ops->fetch_stream( sv->table, row, col, stm );
}

SELECT_get_column_info()

static UINT SELECT_get_column_info ( struct tagMSIVIEW *  view, UINT  n, LPCWSTR *  name, UINT *  type, BOOL *  temporary, LPCWSTR *  table_name  )

static

Definition at line 223 of file select.c.

{
    MSISELECTVIEW *sv = (MSISELECTVIEW*)view;

    TRACE("%p %d %p %p %p %p\n", sv, n, name, type, temporary, table_name );

    if( !sv->table )
         return ERROR_FUNCTION_FAILED;

    if( !n || n > sv->num_cols )
         return ERROR_FUNCTION_FAILED;

    n = sv->cols[ n - 1 ];
    if( !n )
    {
        if (name) *name = L"";
        if (type) *type = MSITYPE_UNKNOWN | MSITYPE_VALID;
        if (temporary) *temporary = FALSE;
        if (table_name) *table_name = L"";
        return ERROR_SUCCESS;
    }
    return sv->table->ops->get_column_info( sv->table, n, name,
                                            type, temporary, table_name );
}

Referenced by msi_select_update().

SELECT_get_dimensions()

static UINT SELECT_get_dimensions ( struct tagMSIVIEW *  view, UINT *  rows, UINT *  cols  )

static

Definition at line 208 of file select.c.

{
    MSISELECTVIEW *sv = (MSISELECTVIEW*)view;

    TRACE("%p %p %p\n", sv, rows, cols );

    if( !sv->table )
         return ERROR_FUNCTION_FAILED;

    if( cols )
        *cols = sv->num_cols;

    return sv->table->ops->get_dimensions( sv->table, rows, NULL );
}

SELECT_insert_row()

static UINT SELECT_insert_row ( struct tagMSIVIEW *  view, MSIRECORD *  record, UINT  row, BOOL  temporary  )

static

Definition at line 159 of file select.c.

{
    MSISELECTVIEW *sv = (MSISELECTVIEW*)view;
    UINT table_cols, r;
    MSIRECORD *outrec;

    TRACE("%p %p\n", sv, record );

    if ( !sv->table )
        return ERROR_FUNCTION_FAILED;

    /* rearrange the record to suit the table */
    r = sv->table->ops->get_dimensions( sv->table, NULL, &table_cols );
    if (r != ERROR_SUCCESS)
        return r;

    if ((r = translate_record( sv, record, &outrec )))
        return r;

    r = sv->table->ops->insert_row( sv->table, outrec, row, temporary );

    msiobj_release( &outrec->hdr );
    return r;
}

SELECT_modify()

static UINT SELECT_modify ( struct tagMSIVIEW *  view, MSIMODIFY  mode, MSIRECORD *  rec, UINT  row  )

static

Definition at line 295 of file select.c.

{
    MSISELECTVIEW *sv = (MSISELECTVIEW*)view;
    MSIRECORD *table_rec;
    UINT r;

    TRACE("view %p, mode %d, rec %p, row %u.\n", view, mode, rec, row);

    if( !sv->table )
         return ERROR_FUNCTION_FAILED;

    /* Tests demonstrate that UPDATE only affects the columns selected and that
     * others are left unchanged; however, ASSIGN overwrites unselected columns
     * to NULL. Similarly, MERGE matches all unselected columns as NULL rather
     * than just ignoring them. */

    switch (mode)
    {
    case MSIMODIFY_REFRESH:
        return msi_view_refresh_row(sv->db, view, row, rec);
    case MSIMODIFY_UPDATE:
        return msi_select_update(view, rec, row);
    case MSIMODIFY_INSERT:
    case MSIMODIFY_ASSIGN:
    case MSIMODIFY_MERGE:
    case MSIMODIFY_INSERT_TEMPORARY:
    case MSIMODIFY_VALIDATE_NEW:
        if ((r = translate_record( sv, rec, &table_rec )))
            return r;

        r = sv->table->ops->modify( sv->table, mode, table_rec, row );
        msiobj_release( &table_rec->hdr );
        return r;
    case MSIMODIFY_DELETE:
        return sv->table->ops->modify( sv->table, mode, rec, row );
    default:
        FIXME("unhandled mode %d\n", mode);
        return ERROR_FUNCTION_FAILED;
    }
}

SELECT_set_row()

static UINT SELECT_set_row ( struct tagMSIVIEW *  view, UINT  row, MSIRECORD *  rec, UINT  mask  )

static

Definition at line 117 of file select.c.

{
    MSISELECTVIEW *sv = (MSISELECTVIEW*)view;
    UINT i, expanded_mask = 0, r = ERROR_SUCCESS, col_count = 0;
    MSIRECORD *expanded;

    TRACE("%p %d %p %08x\n", sv, row, rec, mask );

    if ( !sv->table )
         return ERROR_FUNCTION_FAILED;

    /* test if any of the mask bits are invalid */
    if ( mask >= (1<<sv->num_cols) )
        return ERROR_INVALID_PARAMETER;

    /* find the number of columns in the table below */
    r = sv->table->ops->get_dimensions( sv->table, NULL, &col_count );
    if( r )
        return r;

    /* expand the record to the right size for the underlying table */
    expanded = MSI_CreateRecord( col_count );
    if ( !expanded )
        return ERROR_FUNCTION_FAILED;

    /* move the right fields across */
    for ( i=0; i<sv->num_cols; i++ )
    {
        r = MSI_RecordCopyField( rec, i+1, expanded, sv->cols[ i ] );
        if (r != ERROR_SUCCESS)
            break;
        expanded_mask |= (1<<(sv->cols[i]-1));
    }

    /* set the row in the underlying table */
    if (r == ERROR_SUCCESS)
        r = sv->table->ops->set_row( sv->table, row, expanded, expanded_mask );

    msiobj_release( &expanded->hdr );
    return r;
}

translate_record()

static UINT translate_record ( MSISELECTVIEW *  sv, MSIRECORD *  in, MSIRECORD **  out  )

static

Definition at line 51 of file select.c.

{
    UINT r, col_count, i;
    MSIRECORD *object;

    if ((r = sv->table->ops->get_dimensions( sv->table, NULL, &col_count )))
        return r;

    if (!(object = MSI_CreateRecord( col_count )))
        return ERROR_OUTOFMEMORY;

    for (i = 0; i < sv->num_cols; i++)
    {
        if ((r = MSI_RecordCopyField( in, i + 1, object, sv->cols[i] )))
        {
            msiobj_release( &object->hdr );
            return r;
        }
    }

    *out = object;
    return ERROR_SUCCESS;
}

Referenced by SELECT_insert_row(), and SELECT_modify().

WINE_DEFAULT_DEBUG_CHANNEL()

WINE_DEFAULT_DEBUG_CHANNEL

(

msidb

)

Variable Documentation

select_ops

const MSIVIEWOPS select_ops

static

Initial value:

=
{
    SELECT_fetch_int,
    SELECT_fetch_stream,
    NULL,
    NULL,
    NULL,
    SELECT_set_row,
    SELECT_insert_row,
    NULL,
    SELECT_execute,
    SELECT_close,
    SELECT_get_dimensions,
    SELECT_get_column_info,
    SELECT_modify,
    SELECT_delete,
    NULL,
    NULL,
    NULL,
    NULL,
    NULL,
}

Definition at line 352 of file select.c.

Referenced by SELECT_AddColumn(), and SELECT_CreateView().