o sY8@sJdZ dddZdddZdgZddlZddlZddlZd d lmZGd d d e Z Gd dde Z Gddde Z Gddde Z Gddde ZGddde ZGddde ZGddde ZGddde ZGddde ZiZdd Zd!dZeeD]\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. )name 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__lengthintr r r r r )selfr rr r stopr rO/var/www/html/env/lib/python3.10/site-packages/tablib/packages/dbfpy3/fields.py__init__Ls.      zDbfFieldDef.__init__cCst|jt|SN)cmpr rr)rotherrrr__cmp__kszDbfFieldDef.__cmp__cCs t|jSr)hashr rrrr__hash__ns zDbfFieldDef.__hash__cCsHt|dksJ|d}|t|ddd||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) Nrutf-8)r )rrunzfilldecode)clsstringr r _lengthrrr fromStringqs  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 rljustrchrrr )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 rrr r"rrrr8szDbfFieldDef.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<r r INVALID_VALUEr:rrrdecodeFromRecords  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.decodeValuecCrA)zReturn str object containing encoded field value. This is an abstract method and it must be overriden in child classes. rBrDrrr encodeValueszDbfFieldDef.encodeValue)NNNNF)F)__name__ __module__ __qualname____doc__ __slots__rrrrr r#r- classmethodr7r9r8r<r@r>rFrrrrr)s(    rc@(eZdZdZdZdZddZddZdS) DbfCharacterFieldDefz"Definition of the character field.CcCs|ddS)ziReturn string object. Return value is a ``value`` argument with stripped right spaces.  r&)rstripr)rDrrrr>sz DbfCharacterFieldDef.decodeValuecCst|d|j|jS)z0Return raw data string encoded from a ``value``.N)rrr4rDrrrrFsz DbfCharacterFieldDef.encodeValueNrGrHrIrJrrr>rFrrrrrNs  rNc@rM) 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. s .r)stripfloatrrDrrrr>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%*.*f.rNz+[%s] Numeric overflow: %s (field width: %i))rr rfindrr )rrE_rv_pposrrrrFs  zDbfNumericFieldDef.encodeValueNrSrrrrrTs  rTc@seZdZdZdZdS)DbfFloatFieldDefz0Definition of the float field - same as numeric.FN)rGrHrIrJrrrrrr^sr^c@,eZdZdZdZdZdZddZddZd S) DbfIntegerFieldDefz Definition of the integer field.Ir/rcCstd|dS)z0Return an integer number decoded from ``value``.r=zDbfIntegerFieldDef.decodeValuecCstdt|S)rYrc)repackrrDrrrrFr=zDbfIntegerFieldDef.encodeValueN rGrHrIrJrrrr>rFrrrrra  rac@r`) DbfCurrencyFieldDefz!Definition of the currency field.YgcCstd|ddS)z+Return float number decoded from ``value``. zDbfCurrencyFieldDef.decodeValuecCstdt|dS)rYrmi')rergroundrDrrrrF$rnzDbfCurrencyFieldDef.encodeValueNrhrrrrrjrirjc@r`) DbfLogicalFieldDefz Definition of the logical field.LrcCs6|dkrdS|dvr dS|dvrdStd|j|f)z0Return True, False or -1 decoded from ``value``.?rrzNnFf FYyTtTz[%s] Invalid logical value %r)rr rDrrrr>/szDbfLogicalFieldDef.decodeValuecCs|durdS|dkr dSdS)zReturn a character from the "TF?" set. Return: Return value is "T" if ``value`` is True "?" if value is -1 or False otherwise. TTrrrsr_rrDrrrrF:s zDbfLogicalFieldDef.encodeValueN rGrHrIrJrrrr>rFrrrrrp(s rpc@r`) DbfMemoFieldDefzZDefinition of the memo field. Note: memos aren't currenly completely supported. Mz rcCrA)zTszDbfMemoFieldDef.decodeValuecCrA)zeReturn raw data string encoded from a ``value``. Note: this is an internal method. rBrDrrrrFYszDbfMemoFieldDef.encodeValueNrvrrrrrwIs rwc@s6eZdZdZdZeddZdZddZ dd Z d S) DbfDateFieldDefzDefinition of the date field.DcCs tjSr)datetimedatetodayr*rrrg zDbfDateFieldDef.rlcCs|r t|SdS)z;Return a ``datetime.date`` instance decoded from ``value``.N)rWrgetDaterDrrrr>ks 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%d )rrstrftimerrDrrrrFrs  zDbfDateFieldDef.encodeValueN) rGrHrIrJrr classpropertyrrr>rFrrrrrycs ryc@s:eZdZdZdZdZeddZdZ ddZ d d Z d S) DbfDateTimeFieldDefz"Definition of the timestamp field.iQDrucCs tjSr)r{nowr~rrrrrzDbfDateTimeFieldDef.rlcCs\t||jks Jtd|\}}|dkr*tj||j}|td|d7}|Sd}|S)z&Return a `datetime.datetime` instance.<2Irrg@@N)rrrerfr{ fromordinal JDN_GDN_DIFF timedelta)rrE_jdn_msecsr\rrrr>szDbfDateTimeFieldDef.decodeValuecCsb|r!t|}td||j|jd|jd|jd}nd|j }t ||j ks/J|S)z"Return a string-encoded ``value``.ri<ir0) r getDateTimererg toordinalrhourminutesecondrr)rrEr\rrrrFs  zDbfDateTimeFieldDef.encodeValueN) rGrHrIrJrrrrrrr>rFrrrrrs 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 rcCs tt|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`. )rr5)rrrrrs ) rJ __version____date____all__r{rer2robjectrrNrTr^rarjrprwryrrrrlistglobalsitemsr6_val isinstancetype issubclassappendrrrrs<    *!'