QSqlRecord¶
Inherited by: QSqlIndex
Synopsis¶
Functions¶
- def __eq__ (other)
- def __ne__ (other)
- def append (field)
- def clear ()
- def clearValues ()
- def contains (name)
- def count ()
- def field (i)
- def field (name)
- def fieldName (i)
- def indexOf (name)
- def insert (pos, field)
- def isEmpty ()
- def isGenerated (i)
- def isGenerated (name)
- def isNull (i)
- def isNull (name)
- def remove (pos)
- def replace (pos, field)
- def setGenerated (i, generated)
- def setGenerated (name, generated)
- def setNull (i)
- def setNull (name)
- def setValue (i, val)
- def setValue (name, val)
- def value (i)
- def value (name)
Detailed Description¶
The PySide.QtSql.QSqlRecord class encapsulates a database record.
The PySide.QtSql.QSqlRecord class encapsulates the functionality and characteristics of a database record (usually a row in a table or view within the database). PySide.QtSql.QSqlRecord supports adding and removing fields as well as setting and retrieving field values.
The values of a record’s fields’ can be set by name or position with PySide.QtSql.QSqlRecord.setValue() ; if you want to set a field to null use PySide.QtSql.QSqlRecord.setNull() . To find the position of a field by name use PySide.QtSql.QSqlRecord.indexOf() , and to find the name of a field at a particular position use PySide.QtSql.QSqlRecord.fieldName() . Use PySide.QtSql.QSqlRecord.field() to retrieve a PySide.QtSql.QSqlField object for a given field. Use PySide.QtSql.QSqlRecord.contains() to see if the record contains a particular field name.
When queries are generated to be executed on the database only those fields for which PySide.QtSql.QSqlRecord.isGenerated() is true are included in the generated SQL.
A record can have fields added with PySide.QtSql.QSqlRecord.append() or PySide.QtSql.QSqlRecord.insert() , replaced with PySide.QtSql.QSqlRecord.replace() , and removed with PySide.QtSql.QSqlRecord.remove() . All the fields can be removed with PySide.QtSql.QSqlRecord.clear() . The number of fields is given by PySide.QtSql.QSqlRecord.count() ; all their values can be cleared (to null) using PySide.QtSql.QSqlRecord.clearValues() .
See also
- class PySide.QtSql.QSqlRecord¶
- class PySide.QtSql.QSqlRecord(other)
Parameters: other – PySide.QtSql.QSqlRecord Constructs an empty record.
See also
PySide.QtSql.QSqlRecord.isEmpty() PySide.QtSql.QSqlRecord.append() PySide.QtSql.QSqlRecord.insert()
Constructs a copy of other .
PySide.QtSql.QSqlRecord is implicitly shared . This means you can make copies of a record in constant time .
- PySide.QtSql.QSqlRecord.append(field)¶
Parameters: field – PySide.QtSql.QSqlField Append a copy of field field to the end of the record.
- PySide.QtSql.QSqlRecord.clear()¶
Removes all the record’s fields.
- PySide.QtSql.QSqlRecord.clearValues()¶
Clears the value of all fields in the record and sets each field to null.
See also
- PySide.QtSql.QSqlRecord.contains(name)¶
Parameters: name – unicode Return type: PySide.QtCore.bool Returns true if there is a field in the record called name ; otherwise returns false.
- PySide.QtSql.QSqlRecord.count()¶
Return type: PySide.QtCore.int Returns the number of fields in the record.
See also
- PySide.QtSql.QSqlRecord.field(i)¶
Parameters: i – PySide.QtCore.int Return type: PySide.QtSql.QSqlField Returns the field at position index . If the index is out of range, function returns a default-constructed value .
- PySide.QtSql.QSqlRecord.field(name)
Parameters: name – unicode Return type: PySide.QtSql.QSqlField This is an overloaded function.
Returns the field called name .
- PySide.QtSql.QSqlRecord.fieldName(i)¶
Parameters: i – PySide.QtCore.int Return type: unicode Returns the name of the field at position index . If the field does not exist, an empty string is returned.
See also
- PySide.QtSql.QSqlRecord.indexOf(name)¶
Parameters: name – unicode Return type: PySide.QtCore.int Returns the position of the field called name within the record, or -1 if it cannot be found. Field names are not case-sensitive. If more than one field matches, the first one is returned.
See also
- PySide.QtSql.QSqlRecord.insert(pos, field)¶
Parameters: - pos – PySide.QtCore.int
- field – PySide.QtSql.QSqlField
Inserts the field field at position pos in the record.
- PySide.QtSql.QSqlRecord.isEmpty()¶
Return type: PySide.QtCore.bool Returns true if there are no fields in the record; otherwise returns false.
- PySide.QtSql.QSqlRecord.isGenerated(name)¶
Parameters: name – unicode Return type: PySide.QtCore.bool Returns true if the record has a field called name and this field is to be generated (the default); otherwise returns false.
- PySide.QtSql.QSqlRecord.isGenerated(i)
Parameters: i – PySide.QtCore.int Return type: PySide.QtCore.bool This is an overloaded function.
Returns true if the record has a field at position index and this field is to be generated (the default); otherwise returns false.
- PySide.QtSql.QSqlRecord.isNull(i)¶
Parameters: i – PySide.QtCore.int Return type: PySide.QtCore.bool This is an overloaded function.
Returns true if the field index is null or if there is no field at position index ; otherwise returns false.
- PySide.QtSql.QSqlRecord.isNull(name)
Parameters: name – unicode Return type: PySide.QtCore.bool Returns true if the field called name is null or if there is no field called name ; otherwise returns false.
See also
- PySide.QtSql.QSqlRecord.__ne__(other)¶
Parameters: other – PySide.QtSql.QSqlRecord Return type: PySide.QtCore.bool Returns true if this object is not identical to other ; otherwise returns false.
See also
PySide.QtSql.QSqlRecord.operator==()
- PySide.QtSql.QSqlRecord.__eq__(other)¶
Parameters: other – PySide.QtSql.QSqlRecord Return type: PySide.QtCore.bool Returns true if this object is identical to other (i.e., has the same fields in the same order); otherwise returns false.
See also
PySide.QtSql.QSqlRecord.operator!=()
- PySide.QtSql.QSqlRecord.remove(pos)¶
Parameters: pos – PySide.QtCore.int Removes the field at position pos . If pos is out of range, nothing happens.
- PySide.QtSql.QSqlRecord.replace(pos, field)¶
Parameters: - pos – PySide.QtCore.int
- field – PySide.QtSql.QSqlField
Replaces the field at position pos with the given field . If pos is out of range, nothing happens.
- PySide.QtSql.QSqlRecord.setGenerated(i, generated)¶
Parameters: - i – PySide.QtCore.int
- generated – PySide.QtCore.bool
This is an overloaded function.
Sets the generated flag for the field index to generated .
- PySide.QtSql.QSqlRecord.setGenerated(name, generated)
Parameters: - name – unicode
- generated – PySide.QtCore.bool
Sets the generated flag for the field called name to generated . If the field does not exist, nothing happens. Only fields that have generated set to true are included in the SQL that is generated by PySide.QtSql.QSqlQueryModel for example.
- PySide.QtSql.QSqlRecord.setNull(i)¶
Parameters: i – PySide.QtCore.int Sets the value of field index to null. If the field does not exist, nothing happens.
- PySide.QtSql.QSqlRecord.setNull(name)
Parameters: name – unicode This is an overloaded function.
Sets the value of the field called name to null. If the field does not exist, nothing happens.
- PySide.QtSql.QSqlRecord.setValue(i, val)¶
Parameters: - i – PySide.QtCore.int
- val – object
Sets the value of the field at position index to val . If the field does not exist, nothing happens.
- PySide.QtSql.QSqlRecord.setValue(name, val)
Parameters: - name – unicode
- val – object
This is an overloaded function.
Sets the value of the field called name to val . If the field does not exist, nothing happens.
- PySide.QtSql.QSqlRecord.value(name)¶
Parameters: name – unicode Return type: object This is an overloaded function.
Returns the value of the field called name in the record. If field name does not exist an invalid variant is returned.
See also
- PySide.QtSql.QSqlRecord.value(i)
Parameters: i – PySide.QtCore.int Return type: object Returns the value of the field located at position index in the record. If index is out of bounds, an invalid PySide.QtCore.QVariant is returned.
