Class: QgsFieldsItem

A collection of field items with some internal logic to retrieve the fields and a the vector layer instance from a connection URI, the schema and the table name.

Added in version 3.16.

Class Hierarchy

Base classes

QgsDataItem	Base class for all items in the model.
QObject

Methods

canRenameFields	Returns True if the connection supports renaming fields.
connectionUri	Returns the connection URI
layer	Creates and returns a (possibly None) layer from the connection URI and schema/table information
schema	Returns the schema name
tableName	Returns the table name
tableProperty	Returns the (possibly None) properties of the table this fields belong to.

class qgis.core.QgsFieldsItem

Bases: QgsDataItem

__init__(parent: QgsDataItem | None, path: str | None, connectionUri: str | None, providerKey: str | None, schema: str | None, tableName: str | None)

Constructor for QgsFieldsItem, with the specified parent item.

The path argument gives the item path in the browser tree. The path string can take any form, but QgsDataItem items pointing to different logical locations should always use a different item path. The connectionUri argument is the connection part of the layer URI that it is used internally to create a connection and retrieve fields information. The providerKey string can be used to specify the key for the QgsDataItemProvider that created this item. The schema and tableName are used to retrieve the layer and field information from the connectionUri.

Parameters:

• parent (Optional[QgsDataItem])

• path (Optional[str])

• connectionUri (Optional[str])

• providerKey (Optional[str])

• schema (Optional[str])

• tableName (Optional[str])

canRenameFields(self) → bool

Returns True if the connection supports renaming fields.

Added in version 3.28.

Return type:

bool

connectionUri(self) → str

Returns the connection URI

Return type:

str

layer(self) → QgsVectorLayer | None

Creates and returns a (possibly None) layer from the connection URI and schema/table information

Return type:

Optional[QgsVectorLayer]

schema(self) → str

Returns the schema name

Return type:

str

tableName(self) → str

Returns the table name

Return type:

str

tableProperty(self) → QgsAbstractDatabaseProviderConnection.TableProperty | None

Returns the (possibly None) properties of the table this fields belong to.

Added in version 3.16.

Return type:

Optional[QgsAbstractDatabaseProviderConnection.TableProperty]