Package dbf :: Module ver_33 :: Class _Navigation

Class _Navigation

object --+
         |
        _Navigation

Navigation base class that provides VPFish movement methods

Instance Methods

[hide private]

_nav_check(self)
implemented by subclass; must return True if underlying structure meets need

source code

_get_index(self, direction, n=1, start=None)
returns index of next available record towards direction

source code

bof(self)
returns True if no more usable records towards the beginning of the table

source code

bottom(self)
sets record index to bottom of table (end of table)

source code

current_record(self)
returns current record (deleted or not)

source code

current(self)
returns current index

source code

eof(self)
returns True if no more usable records towards the end of the table

source code

first_record(self)
returns first available record (does not move index)

source code

goto(self, where)
changes the record pointer to the first matching (deleted) record where should be either an integer, or 'top' or 'bottom'.

source code

last_record(self)
returns last available record (does not move index)

source code

next_record(self)
returns next available record (does not move index)

source code

prev_record(self)
returns previous available record (does not move index)

source code

skip(self, n=1)
move index to the next nth available record

source code

top(self)
sets record index to top of table (beginning of table)

source code

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __init__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__, __subclasshook__

Class Variables

[hide private]

_index = -1

Properties

[hide private]

Inherited from object: __class__

Method Details

[hide private]

bof(self)

source code

returns True if no more usable records towards the beginning of the table

Decorators:

@property

current_record(self)

source code

returns current record (deleted or not)

Decorators:

@property

current(self)

source code

returns current index

Decorators:

@property

eof(self)

source code

returns True if no more usable records towards the end of the table

Decorators:

@property

first_record(self)

source code

returns first available record (does not move index)

Decorators:

@property

goto(self, where)

source code

changes the record pointer to the first matching (deleted) record where should be either an integer, or 'top' or 'bottom'. top -> before first record bottom -> after last record

last_record(self)

source code

returns last available record (does not move index)

Decorators:

@property

next_record(self)

source code

returns next available record (does not move index)

Decorators:

@property

prev_record(self)

source code

returns previous available record (does not move index)

Decorators:

@property