def count_array_items( self, schema_ns, array_name ): """ count_array_items returns the number of a given array's items """ index = 0 the_prop = _exempi.xmp_string_new() while( True ): if _exempi.xmp_get_array_item( self.xmpptr, str(schema_ns), str(array_name), index+1, the_prop, None): index += 1 else: break return index
def count_array_items(self, schema_ns, array_name):
"""
count_array_items returns the number of a given array's items
"""
index = 0
the_prop = _exempi.xmp_string_new()
while (True):
if _exempi.xmp_get_array_item(self.xmpptr, str(schema_ns),
str(array_name), index + 1, the_prop,
None):
index += 1
else:
break
return index
def get_array_item( self, schema_ns, array_name, item_index ):
"""
get_array_item() provides access to items within an array.
Reports whether the item exists; if it does, and if it has a value, the function retrieves the value.; if it doesn't it raises Exception.
Items are accessed by an integer index, where the first item has index 1.
.. todo:: Make get_array_item optionally return keywords describing array item's options
"""
the_prop = _exempi.xmp_string_new()
options = c_int32()
if _exempi.xmp_get_array_item( self.xmpptr, schema_ns, array_name, item_index, the_prop, byref(options)): #we're never returning options
return {_exempi.xmp_string_cstr(the_prop):options.value}
else:
raise Exception, "Array's over"
def does_array_item_exist(self, schema_ns, array_name, item ): """ does_array_item_exist() reports whether an array's item currently exists. :return: True if item is in array, False otherwise :rtype: bool """ index = 0 the_prop = _exempi.xmp_string_new() while( True ): if _exempi.xmp_get_array_item( self.xmpptr, str(schema_ns), str(array_name), index+1, the_prop, None): index += 1 else: break return index
def get_array_item(self, schema_ns, array_name, item_index):
"""
get_array_item() provides access to items within an array.
Reports whether the item exists; if it does, and if it has a value, the function retrieves the value.; if it doesn't it raises Exception.
Items are accessed by an integer index, where the first item has index 1.
.. todo:: Make get_array_item optionally return keywords describing array item's options
"""
the_prop = _exempi.xmp_string_new()
options = c_int32()
if _exempi.xmp_get_array_item(
self.xmpptr, schema_ns, array_name, item_index, the_prop,
byref(options)): # we're never returning options
return {_exempi.xmp_string_cstr(the_prop): options.value}
else:
raise Exception, "Array's over"
def does_array_item_exist(self, schema_ns, array_name, item):
"""
does_array_item_exist() reports whether an array's item currently exists.
:return: True if item is in array, False otherwise
:rtype: bool
"""
index = 0
the_prop = _exempi.xmp_string_new()
while (True):
if _exempi.xmp_get_array_item(self.xmpptr, str(schema_ns),
str(array_name), index + 1, the_prop,
None):
index += 1
else:
break
return index
