Synopsis¶

Methods¶

def __init__()
def displayColumn()
def indexColumn()
def isValid()
def swap()
def tableName()

Note

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Detailed Description¶

QSqlRelation is a helper class for QSqlRelationalTableModel . See setRelation() and relation() for details.

See also

QSqlRelationalTableModel QSqlRelationalDelegate Relational Table Model Example

__init__()¶

Constructs an invalid QSqlRelation object.

For such an object, the tableName() , indexColumn() , and displayColumn() functions return an empty string.

See also

isValid()

__init__(aTableName, indexCol, displayCol)

Parameters:

aTableName – str
indexCol – str
displayCol – str

Constructs a QSqlRelation object, where tableName is the SQL table name to which a foreign key refers, indexColumn is the foreign key, and displayColumn is the field that should be presented to the user.

See also

tableName() indexColumn() displayColumn()

displayColumn()¶

Return type:: str

Returns the column from table tableName() that should be presented to the user instead of a foreign key.

indexColumn()¶

Return type:: str

Returns the index column from table tableName() to which a foreign key refers.

isValid()¶

Return type:: bool

Returns true if the QSqlRelation object is valid; otherwise returns false.

swap(other)¶

Parameters:: other – QSqlRelation

Swaps this with other.

tableName()¶

Return type:: str

Returns the name of the table to which a foreign key refers.