ó [³XMc@sˆddlmZddlmZmZmZmZddlmZddlm Z ddl m Z dej fd„ƒYZ dgZdS( iÿÿÿÿ(t reflector(tDBErrort getKeyColumntquotetsafe(t _TableInfo(t RowObject(treflectt SQLReflectorcBsðeZdZdZidej6dej6dej6dej6Z d„Z d„Z d„Z d „Z d „Zd „Zddddd „Zd „Zd„Zd„Zd„Zd„Zd„Zd„Zd„Zd„Zd„Zd„ZRS(s  DEPRECATED. I reflect on a database and load RowObjects from it. In order to do this, I interrogate a relational database to extract schema information and interface with RowObject class objects that can interact with specific tables. it=ttlikecCs tjj||ƒ||_dS(s*Initialize me against a database. N(Rt Reflectort__init__tdbpool(tselfRt rowClasses((sC/usr/lib/python2.7/dist-packages/twisted/enterprise/sqlreflector.pyRscCs|jƒdS(N(t_transPopulateSchema(R((sC/usr/lib/python2.7/dist-packages/twisted/enterprise/sqlreflector.pyt _populate%scCs\xL|jD]A}t|tƒs>tdtj|jƒƒ‚n|j|ƒq Wd|_dS(sCUsed to construct the row classes in a single interaction. s-Stub class (%s) is not derived from RowObjectiN( Rt issubclassRRRtqualtrowClasst_populateSchemaFort populated(Rtrc((sC/usr/lib/python2.7/dist-packages/twisted/enterprise/sqlreflector.pyR(s cCs’d}x6|D].}t||ƒs td||fƒ‚q q Wt|ƒ}|j|ƒ|_|j|ƒ|_|j|ƒ|_|j |ƒdS(s‰Construct all the SQL templates for database operations on and populate the class with that info. t rowColumnst rowKeyColumnst rowTableNames(RowClass %s must have class variable: %sN(s rowColumnss rowKeyColumnss rowTableName( thasattrRRtbuildUpdateSQLt updateSQLtbuildInsertSQLt insertSQLtbuildDeleteSQLt deleteSQLtpopulateSchemaFor(RRt attributestattt tableInfo((sC/usr/lib/python2.7/dist-packages/twisted/enterprise/sqlreflector.pyR2s  cCs t|ƒS(säEscape a string for use in an SQL statement. The default implementation escapes ' with '' and \ with \. Redefine this function in a subclass if your database server uses different escaping rules. (R(Rttext((sC/usr/lib/python2.7/dist-packages/twisted/enterprise/sqlreflector.pyt escape_stringAscCst||d|jƒS(s›Format a value for use in an SQL statement. @param value: a value to format as data in SQL. @param type: a key in util.dbTypeMap. tstring_escaper(RR)(Rtvaluettype((sC/usr/lib/python2.7/dist-packages/twisted/enterprise/sqlreflector.pyt quote_valueIscCs…|r|rtdƒ‚n|rT|j|ƒ}|j|ƒ}|j||ƒ}n|r]ng}|jj|j|||||ƒS(seLoad a set of RowObjects from a database. Create a set of python objects of from the contents of a table populated with appropriate data members. Example:: | class EmployeeRow(row.RowObject): | pass | | def gotEmployees(employees): | for emp in employees: | emp.manager = "fred smith" | manager.updateRow(emp) | | reflector.loadObjectsFrom("employee", | data = userData, | whereClause = [("manager" , EQUAL, "fred smith")] | ).addCallback(gotEmployees) NOTE: the objects and all children should be loaded in a single transaction. NOTE: can specify a parentRow _OR_ a whereClause. s.Must specify one of parentRow _OR_ whereClause(Rt getTableInfotgetRelationshipFortbuildWhereClauseRtrunInteractiont _rowLoader(Rt tableNamet parentRowtdatat whereClauset forceChildrentinfot relationship((sC/usr/lib/python2.7/dist-packages/twisted/enterprise/sqlreflector.pytloadObjectsFromQs  c Cs§|j|}d}d} x>|jD]3\} } | r>d} n |d}|d| }q#W|d|}|rü|d7}d} x{|D]p} | ršd} n |d7}| \} }}|j|| ƒ}|j||ƒ}|d | |j||f7}q…Wn|j|ƒ|jƒ}g}g}xó|D]ë}i}xutdt|ƒƒD]^}|j|dj ƒ}x>|j jD]0\}} |j ƒ|krt||||RRRRR)R-tNoneR:R2R=RR R"RgRjRkRlRmRo(((sC/usr/lib/python2.7/dist-packages/twisted/enterprise/sqlreflector.pyR s4          & G        N(ttwisted.enterpriseRttwisted.enterprise.utilRRRRRttwisted.enterprise.rowRttwisted.pythonRR Rt__all__(((sC/usr/lib/python2.7/dist-packages/twisted/enterprise/sqlreflector.pyts"ÿ;