o sY$@sdZ dddZdddZdZdgZdd lmZdd lmZd d lm Z Gd dde Z ddZ ddZ edkrVd dlZeejdkrJejdpKdZe ee edSdS)aDBF accessing helpers. FIXME: more documentation needed Examples: Create new table, setup structure, add records: dbf = Dbf(filename, new=True) dbf.addField( ("NAME", "C", 15), ("SURNAME", "C", 25), ("INITIALS", "C", 10), ("BIRTHDATE", "D"), ) for (n, s, i, b) in ( ("John", "Miller", "YC", (1980, 10, 11)), ("Andy", "Larkin", "", (1980, 4, 11)), ): rec = dbf.newRecord() rec["NAME"] = n rec["SURNAME"] = s rec["INITIALS"] = i rec["BIRTHDATE"] = b rec.store() dbf.close() Open existed dbf, read some data: dbf = Dbf(filename, True) for rec in dbf: for fldName in dbf.fieldNames: print '%s: %s (%s)' % (fldName, rec[fldName], type(rec[fldName])) print dbf.close() z$Revision: 1.7 $ z$Date: 2007/02/11 09:23:13 $z1Jeff Kunce Dbf)header)record) INVALID_VALUEc@seZdZdZdZejZej Z e Z d(ddZ e ddZe ddZe d dZe d dZe d dZd d Ze ddeddZddZddZddZddZddZddZddZdd Zd!d"Zd#d$Zd%d&Zd'S))raDBF accessor. FIXME: docs and examples needed (dont' forget to tell about problems adding new fields on the fly) Implementation notes: ``_new`` field is used to indicate whether this is a new data table. `addField` could be used only for the new tables! If at least one record was appended to the table it's structure couldn't be changed. )namerstream_changed_new_ignore_errorsFcCst|tr||_|rt|d|_nt|dt||_n t|dd|_||_|r.||_n|j |j|_||_ t||_ d|_ dS)afInitialize instance. Arguments: f: Filename or file-like object. new: True if new data table must be created. Assume data table exists if this argument is False. readOnly: if ``f`` argument is a string file will be opend in read-only mode; in other cases this argument is ignored. This argument is ignored even if ``new`` argument is True. headerObj: `header.DbfHeader` instance or None. If this argument is None, new empty header will be used with the all fields set by default. ignoreErrors: if set, failing field value conversion will return ``INVALID_VALUE`` instead of raising conversion error. zw+b)zr+brbr FN) isinstance basestringr filer boolgetattr HeaderClassr fromStream ignoreErrorsr r )selffreadOnlynewrrK/var/www/html/env/lib/python3.10/site-packages/tablib/packages/dbfpy/dbf.py__init__^s    z Dbf.__init__cC|jjSN)r closedrrrrz Dbf.cCr r!)r recordCountr#rrrr$r%cCsdd|jjDS)NcSsg|]}|jqSr)r ).0_fldrrr z Dbf...rfieldsr#rrrr$r*cCr r!r+r#rrrr$r%cCs|jp|jjSr!)r rchangedr#rrrr$scCst||j_|_dS)z8Update `ignoreErrors` flag on the header object and selfN)rrrr)rvaluerrrrszDbf.ignoreErrorscC|jSr!)rr#rrrr$szError processing mode for DBF field value conversion if set, failing field value conversion will return ``INVALID_VALUE`` instead of raising conversion error. )doccCsFt|ttfs td|dkr|t|d7}|t|kr!td|S)aReturn fixed index. This method fails if index isn't a numeric object (long or int). Or index isn't in a valid range (less or equal to the number of records in the db). If ``index`` is a negative number, it will be treated as a negative indexes for list objects. Return: Return value is numeric object maning valid index. zIndex must be a numeric objectrrzRecord index out of range)rintlong TypeErrorlen IndexErrorrindexrrr _fixIndexs z Dbf._fixIndexcCs||jdSr!)flushr closer#rrrr:sz Dbf.closecCs6|jr|j|j|j|jd|_dSdS)z$Flush data to the associated stream.FN)r-rsetCurrentDatewriter r9r r#rrrr9s    z Dbf.flushcCs|jj|S)zIndex of field named ``name``.)rr,r7)rr rrrindexOfFieldNameszDbf.indexOfFieldNamecCs ||S)z.Return new record, which belong to this table.) RecordClassr#rrr newRecords z Dbf.newRecordcCs2|jj|_||jjd7_d|_d|_dS)z"Append ``record`` to the database.rTFN)rr&r7_writer r )rrrrrappends  z Dbf.appendcGs|jr |jj|dStd)z_Add field definitions. For more information see `header.DbfHeader.addField`. z9At least one record was added, structure can't be changedN)r raddFieldr3)rdefsrrrrBsz Dbf.addFieldcCsd|jt|jS)NzDbf stream '%s' )r reprrr#rrr__repr__sz Dbf.__repr__cCr/)zReturn number of records.)r&r#rrr__len__sz Dbf.__len__cCs|j|||S)zReturn `DbfRecord` instance.)r>rr8r6rrr __getitem__szDbf.__getitem__cCs$|||_|d|_d|_dS)z)Write `DbfRecord` instance to the stream.TFN)r8r7r@r r )rr7rrrr __setitem__s  zDbf.__setitem__N)FFF)__name__ __module__ __qualname____doc__ __slots__r DbfHeaderrr DbfRecordr>r rpropertyr"r& fieldNames fieldDefsr-rr8r:r9r=r?rArBrErFrGrHrrrrrFs>  1     cCs0t|d}|D] }ttt|q|dS)NT)rprintrDr:)filename_dbf_recrrr demo_reads  rWcCsvt|dd}|dddddD]\}}}}|}||d<||d <||d <||d <|qtt||dS) NT)r)NAMEC)SURNAMErY)INITIALSrY ) BIRTHDATED))JohnMillerYC)ir)AndyLarkinAL)i)BillClinthr)i)BobbMcNailr)irrXr[r]r_)rrBr?storerSrDr:)rTrU_n_s_i_brVrrr demo_create s    rv__main__Nz county.dbf)rL __version____date__ __author____all__rrrutilsr objectrrWrvrIsysr4argv_namerrrrs&&     =