o sY8@sFdZ dddZdddZdgZddlZddlZddlZd d lmZGd d d e Z Gd dde Z Gddde Z Gddde Z Gddde ZGddde ZGddde ZGddde ZGddde ZGddde ZiZdd Zd!dZeD]\ZZeeereee red kreeeeq[[dS)"z3DBF fields definitions. TODO: - make memos work z$Revision: 1.14 $ z$Date: 2009/05/26 05:16:51 $ lookupForN)utilsc@seZdZdZdZdZdZdZ  dddZddZ d d Z dd d Z e e Z d dZ ddZddZddZddZddZddZdS) DbfFieldDefa\Abstract field definition. Child classes must override ``type`` class attribute to provide datatype infromation of the field definition. For more info about types visit `http://www.clicketyclick.dk/databases/xbase/format/data_types.html` Also child classes must override ``defaultValue`` field to provide default value for the field value. If child class has fixed length ``length`` class attribute must be overriden and set to the valid value. None value means, that field isn't of fixed length. Note: ``name`` field must not be changed after instantiation. )namelength decimalCountstartend ignoreErrorsNFcCs|jdus Jd|jdusJdt|dkrtd|t|}|jjdurC|dur4td|t|}|dkrBtd|n|j}|durLd}||_ ||_||_ ||_ ||_ ||_ dS) zInitialize instance.NzType code must be overridenzDefault value must be overriden zField name "%s" is too longz[%s] Length isn't specifiedrz&[%s] Length must be a positive integer)typeCode defaultValuelen ValueErrorstrupper __class__r intr r rr r )selfr r r r stoprrN/var/www/html/env/lib/python3.10/site-packages/tablib/packages/dbfpy/fields.py__init__Ks.      zDbfFieldDef.__init__cCst|jt|SN)cmpr rr)rotherrrr__cmp__jszDbfFieldDef.__cmp__cCs t|jSr)hashr rrrr__hash__ms zDbfFieldDef.__hash__cCsJt|dksJt|d}|t|dd|t|d||||dS)azDecode dbf field definition from the string data. Arguments: string: a string, dbf definition is decoded from. length of the string must be 32 bytes. start: position in the database file. ignoreErrors: initial error processing mode for the new field (boolean) Nr)r)rordrunzfill)clsstringr r_lengthrrr fromStringps   zDbfFieldDef.fromStringcCsptjdkr|jddddt|j}n|jdd}||jtddt|jt|jtddS)zReturn encoded field definition. Return: Return value is a string object containing encoded definition of this field. )Nrrr.) sys version_infor rljustrchrr r )r_namerrrtoStrings "  zDbfFieldDef.toStringcCs d|S)Nz%-10s %1s %3d %3d) fieldInfor"rrr__repr__s zDbfFieldDef.__repr__cCs|j|j|j|jfS)zxReturn field information. Return: Return value is a (name, type, length, decimals) tuple. )r rr r r"rrrr7szDbfFieldDef.fieldInfocCs||j|jS)z2Return a "raw" field value from the record string.)r r rrecordrrr rawFromRecordzDbfFieldDef.rawFromRecordcCs,z |||WS|jrtjYS)z2Return decoded field value from the record string.) decodeValuer;rr INVALID_VALUEr9rrrdecodeFromRecords  zDbfFieldDef.decodeFromRecordcCt)zReturn decoded value from string value. This method shouldn't be used publicly. It's called from the `decodeFromRecord` method. This is an abstract method and it must be overridden in child classes. NotImplementedErrorrvaluerrrr=szDbfFieldDef.decodeValuecCr@)zReturn str object containing encoded field value. This is an abstract method and it must be overriden in child classes. rArCrrr encodeValueszDbfFieldDef.encodeValue)NNNNF)F)__name__ __module__ __qualname____doc__ __slots__r rrrr r#r, classmethodr6r8r7r;r?r=rErrrrr)s(    rc@(eZdZdZdZdZddZddZdS) DbfCharacterFieldDefz"Definition of the character field.CcCs |dS)ziReturn string object. Return value is a ``value`` argument with stripped right spaces.  )rstriprCrrrr=s z DbfCharacterFieldDef.decodeValuecCst|d|j|jS)z0Return raw data string encoded from a ``value``.N)rr r3rCrrrrEsz DbfCharacterFieldDef.encodeValueNrFrGrHrIrrr=rErrrrrMs  rMc@rL) DbfNumericFieldDefz Definition of the numeric field.NrcCs*|d}d|vr t|S|rt|SdS)zReturn a number decoded from ``value``. If decimals is zero, value will be decoded as an integer; or as a float otherwise. Return: Return value is a int (long) or float instance. z .r)stripfloatrrCrrrr=s zDbfNumericFieldDef.decodeValuecCspd|j|j|f}t||jkr6|d}d|kr |jkr+nn |d|j}|Std|j||jf|S)+Return string containing encoded ``value``.z%*.*frUrNz+[%s] Numeric overflow: %s (field width: %i))r r rfindrr )rrD_rv_pposrrrrEs  zDbfNumericFieldDef.encodeValueNrRrrrrrSs  rSc@seZdZdZdZdS)DbfFloatFieldDefz0Definition of the float field - same as numeric.FN)rFrGrHrIrrrrrr\sr\c@,eZdZdZdZdZdZddZddZd S) DbfIntegerFieldDefz Definition of the integer field.Ir.rcCstd|dS)z0Return an integer number decoded from ``value``.f zDbfDateFieldDef.rjcCs|r t|SdS)z;Return a ``datetime.date`` instance decoded from ``value``.N)rVrgetDaterCrrrr=js zDbfDateFieldDef.decodeValuecCs|r t|dSd|jS)zReturn a string-encoded value. ``value`` argument should be a value suitable for the `utils.getDate` call. Return: Return value is a string in format "yyyymmdd". z%Y%m%drP)rrstrftimer rCrrrrEqs  zDbfDateFieldDef.encodeValueN) rFrGrHrIrr classpropertyrr r=rErrrrrwbs rwc@s:eZdZdZdZdZeddZdZ ddZ d d Z d S) DbfDateTimeFieldDefz"Definition of the timestamp field.iQDrscCs tjSr)rynowr|rrrr}r~zDbfDateTimeFieldDef.rjcCs\t||jks Jtd|\}}|dkr*tj||j}|td|d7}|Sd}|S)z&Return a `datetime.datetime` instance.<2Irrg@@N)rr rcrdry fromordinal JDN_GDN_DIFF timedelta)rrD_jdn_msecsrZrrrr=szDbfDateTimeFieldDef.decodeValuecCsb|r!t|}td||j|jd|jd|jd}nd|j }t ||j ks/J|S)z"Return a string-encoded ``value``.ri<ir/) r getDateTimercre toordinalrhourminutesecondr r)rrDrZrrrrEs  zDbfDateTimeFieldDef.encodeValueN) rFrGrHrIrrrrrr r=rErrrrrs rcCs |jdus Jd|t|j<dS)zRegister field definition class. ``fieldCls`` should be subclass of the `DbfFieldDef`. Use `lookupFor` to retrieve field definition class by the type code. NzType code isn't defined)r_fieldsRegistry)fieldClsrrr registerFields rcCst|S)aReturn field definition class for the given type code. ``typeCode`` must be a single character. That type should be previously registered. Use `registerField` to register new field class. Return: Return value is a subclass of the `DbfFieldDef`. )r)rrrrrs)rI __version____date____all__ryrcr1rOrobjectrrMrSr\r_rhrnrurwrrrrglobalsitemsr5_val isinstancetype issubclassappendrrrrs<   *!'