def updateFc(self, fc):
'''
更新要素类
'''
flag = False
if isinstance(fc, AIFc):
name = fc.getName()
nalias = fc.getAlias() #新字段别名集合
nFields = fc.getFields() #新字段集合
nFieldNames = [nfld.getName() for nfld in nFields] #新字段名集合
if not AIUtils.isEmpty(name):
if arcpy.Exists(name):
ofc = self.queryFc(fc)
oalias = ofc.getAlias() # 旧字段别名集合
oFields = ofc.getFields() # 旧字段集合
oFieldNames = [ofld.getName() for ofld in oFields] #旧字段名集合
try:
# 更改别名
if not AIUtils.isEmpty(nalias) and not AIStrUtils.isEqual(oalias, nalias):
arcpy.AlterAliasName(name, nalias)
# 比对字段
# 删除字段(排除保留字段)
for ofn in oFieldNames:
if ofn not in nFieldNames and \
not AIStrUtils.isEqual(ofn, 'OBJECTID') and \
not AIStrUtils.isEqual(ofn, 'NAME') and \
not AIStrUtils.isEqual(ofn, 'SHAPE') and \
not 'AREA' in ofn and \
not 'LEN' in ofn:
arcpy.DeleteField_management(name, ofn)
# 添加字段(排除保留字段)
for nfn in nFieldNames:
if nfn not in oFieldNames:
fldName = AIStrUtils.toUpper(nfn)
if not AIStrUtils.isEqual(fldName, 'OBJECTID') and \
not AIStrUtils.isEqual(fldName, 'NAME') and \
not AIStrUtils.isEqual(fldName, 'SHAPE') and \
not 'AREA' in fldName and \
not 'LEN' in fldName:
# 需要添加的字段
field = None
# 查找需要添加的字段
for nfld in nFields:
if AIStrUtils.isEqual(nfld.getName(), nfn):
field = nfld
break
# 字段名
fldName = arcpy.ValidateFieldName(fldName, self.__wksName)
# 字段别名
fldAlias = field.getAlias()
# 字段类型 Integer--LONG Double--DOUBLE String--TEXT Date--DATE
fldType = AIStrUtils.toUpper(AIStrUtils.trim(field.getFtype()))
fldType = 'LONG' if AIStrUtils.isEqual(fldType, 'INTEGER') else \
'TEXT' if AIStrUtils.isEqual(fldType, 'STRING') else fldType
# 字段小数点位数（浮点型）
fldScale = field.getScale()
# 字段长度（文本型）
fldLength = field.getLength()
# 字段是否允许为空
fldIsNullable = field.getIsNullable()
arcpy.AddField_management(name, fldName, fldType, None, fldScale, \
fldLength, fldAlias, fldIsNullable, False)
flag = True
except:
raise
else:
raise Exception('featureclass not exist!')
else:
raise Exception('featureclass name cannot be empty!')
else:
raise Exception('input parameter type not correct!')
return flag
not 'AREA' in fldName and \
not 'LEN' in fldName:
# 需要添加的字段
field = None
# 查找需要添加的字段
for nfld in nFields:
if AIStrUtils.isEqual(nfld['name'], nfn):
field = nfld
break
keys = field.keys()
# 字段名
fldName = arcpy.ValidateFieldName(fldName, wksName)
# 字段别名
fldAlias = fldName if not 'alias' in keys else field['alias']
# 字段类型 Integer--LONG Double--DOUBLE String--TEXT Date--DATE
fldType = AIStrUtils.toUpper(AIStrUtils.trim(None if not 'ftype' in keys else field['ftype']))
fldType = 'LONG' if AIStrUtils.isEqual(fldType, 'INTEGER') else \
'TEXT' if AIStrUtils.isEqual(fldType, 'STRING') else fldType
# 字段小数点位数（浮点型）
fldScale = 0 if not 'scale' in keys else field['scale']
# 字段长度（文本型）
fldLength = 50 if not 'length' in keys else field['length']
# 字段是否允许为空
fldIsNullable = True if not 'isNullable' in keys else field['isNullable']
arcpy.AddField_management(fcName, fldName, fldType, None, fldScale, \
fldLength, fldAlias, fldIsNullable, False)
flag = 'true'
except Exception as e:
logger.info(unicode(e.message).encode("utf-8"))
