QPersistentModelIndex¶
The
QPersistentModelIndex
class is used to locate data in a data model. More…

Synopsis¶
Functions¶
def
__eq__
(other)def
__eq__
(other)def
__lt__
(other)def
__ne__
(other)def
__ne__
(other)def
child
(row, column)def
column
()def
data
([role=Qt.DisplayRole])def
flags
()def
internalId
()def
internalPointer
()def
isValid
()def
model
()def
operator=
(other)def
parent
()def
row
()def
sibling
(row, column)def
swap
(other)
Detailed Description¶
A
QPersistentModelIndex
is a model index that can be stored by an application, and later used to access information in a model. Unlike theQModelIndex
class, it is safe to store aQPersistentModelIndex
since the model will ensure that references to items will continue to be valid as long as they can be accessed by the model.It is good practice to check that persistent model indexes are valid before using them.
-
class
QPersistentModelIndex
¶ QPersistentModelIndex(index)
QPersistentModelIndex(other)
- param other
- param index
Creates a new
QPersistentModelIndex
that is a copy of the modelindex
.Creates a new
QPersistentModelIndex
that is a copy of theother
persistent model index.
-
PySide2.QtCore.QPersistentModelIndex.
child
(row, column)¶ - Parameters
row –
int
column –
int
- Return type
Note
This function is deprecated.
Use
index()
instead.Returns the child of the model index that is stored in the given
row
andcolumn
.
-
PySide2.QtCore.QPersistentModelIndex.
column
()¶ - Return type
int
Returns the column this persistent model index refers to.
-
PySide2.QtCore.QPersistentModelIndex.
data
([role=Qt.DisplayRole])¶ - Parameters
role –
int
- Return type
object
Returns the data for the given
role
for the item referred to by the index.See also
ItemDataRole
setData()
-
PySide2.QtCore.QPersistentModelIndex.
flags
()¶ - Return type
ItemFlags
Returns the flags for the item referred to by the index.
-
PySide2.QtCore.QPersistentModelIndex.
internalId
()¶ - Return type
quintptr
Returns a
quintptr
used by the model to associate the index with the internal data structure.
-
PySide2.QtCore.QPersistentModelIndex.
internalPointer
()¶ - Return type
void
Returns a
void
*
pointer used by the model to associate the index with the internal data structure.
-
PySide2.QtCore.QPersistentModelIndex.
isValid
()¶ - Return type
bool
Returns
true
if this persistent model index is valid; otherwise returnsfalse
.A valid index belongs to a model, and has non-negative row and column numbers.
-
PySide2.QtCore.QPersistentModelIndex.
model
()¶ - Return type
Returns the model that the index belongs to.
-
PySide2.QtCore.QPersistentModelIndex.
__ne__
(other)¶ - Parameters
other –
QModelIndex
- Return type
bool
Returns
true
if this persistent model index does not refer to the same location as theother
model index; otherwise returnsfalse
.
-
PySide2.QtCore.QPersistentModelIndex.
__ne__
(other) - Parameters
other –
QPersistentModelIndex
- Return type
bool
Returns
true
if this persistent model index is not equal to theother
persistent model index; otherwise returnsfalse
.
-
PySide2.QtCore.QPersistentModelIndex.
__lt__
(other)¶ - Parameters
other –
QPersistentModelIndex
- Return type
bool
Returns
true
if this persistent model index is smaller than theother
persistent model index; otherwise returnsfalse
.The internal data pointer, row, column, and model values in the persistent model index are used when comparing with another persistent model index.
-
PySide2.QtCore.QPersistentModelIndex.operator=(other)
- Parameters
other –
QModelIndex
- Return type
Sets the persistent model index to refer to the same item in a model as the
other
model index.
-
PySide2.QtCore.QPersistentModelIndex.
__eq__
(other)¶ - Parameters
other –
QModelIndex
- Return type
bool
Returns
true
if this persistent model index refers to the same location as theother
model index; otherwise returnsfalse
.The internal data pointer, row, column, and model values in the persistent model index are used when comparing with another model index.
-
PySide2.QtCore.QPersistentModelIndex.
__eq__
(other) - Parameters
other –
QPersistentModelIndex
- Return type
bool
Returns
true
if this persistent model index is equal to theother
persistent model index; otherwise returnsfalse
.The internal data pointer, row, column, and model values in the persistent model index are used when comparing with another persistent model index.
-
PySide2.QtCore.QPersistentModelIndex.
parent
()¶ - Return type
Returns the parent
QModelIndex
for this persistent index, or an invalidQModelIndex
if it has no parent.
-
PySide2.QtCore.QPersistentModelIndex.
row
()¶ - Return type
int
Returns the row this persistent model index refers to.
-
PySide2.QtCore.QPersistentModelIndex.
sibling
(row, column)¶ - Parameters
row –
int
column –
int
- Return type
Returns the sibling at
row
andcolumn
or an invalidQModelIndex
if there is no sibling at this position.See also
-
PySide2.QtCore.QPersistentModelIndex.
swap
(other)¶ - Parameters
other –
QPersistentModelIndex
Swaps this persistent modelindex with
other
. This function is very fast and never fails.