我有这个课(评价)
class schoolem_evaluation(osv.Model): _name = 'schoolem.evaluation' _columns = { 'name' : fields.char('Evaluation',help="Champ automatique = periodeN_ExamenN_CoursX_SalleDeClasseS"), 'aca_id' : fields.many2one('schoolem.aca','Annee Academique',required=True), 'periode_id' : fields.many2one('schoolem.periode','Periode',required=True,help="Par exemple : trimestre01"), 'examen_id' : fields.many2one('schoolem.examen','Examen',required=True), 'salle_de_classe_id' : fields.many2one('schoolem.salle_de_classe','Salle de Classe',required=True), 'cours_id' : fields.many2one('schoolem.cours','Cours',required=True), 'note_ids' : fields.one2many('schoolem.note_evaluation','evaluation_id','Notes'), }
和这个班(note_evaluation)
class schoolem_note_evaluation(osv.Model): _name = 'schoolem.note_evaluation' _order = 'etudiant_id' _columns = { 'name' : fields.float('Note',digits=(6,2),required=True), 'evaluation_id' : fields.many2one('schoolem.evaluation','Evaluation',), 'etudiant_id' : fields.many2one('schoolem.etudiant','Etudiant',required=True), 'rang' : fields.integer('Rang'), 'observation' : fields.text('Observation'), }
我希望用户在选择Evaluation_form中最后一个字段(cours_id)的值时,能够通过on_change方法生成one2many note_evaluation行; 并使生成的行直接出现在视图中,以便他可以插入每个note_evaluation行的名称值(注释).并保存所有.
可能吗?这是我当前的XML视图文件
这是onchange功能:
def on_change_cours_id(self,cr, uid, ids,examen_id,salle_de_classe_id,cours_id,aca_id,context=None): context=context or {} #if context is None: # context = {} for etud_id in etudiant_ids: note_eval = self.pool.get('schoolem.note_evaluation') if not context.get('id', False): #id de l'evaluation context['id'] = context.get('evaluation_id') eval_id = context.get('id', False) raise osv.except_osv(('the form!'), (context.get('active_id'))) id = note_eval.create(cr, uid, {'name':0,'etudiant_id':etud_id,'evaluation_id':eval_id}, context=context)
有了这个,on_change方法在数据库中创建note_evaluation,但用户界面不加载它们,one2many字段保持为空.我观察到数据库中的note_evaluation没有评估_id.
怎么做?
要使用onchange加载one2many数据,您不必从onchange函数创建one2many数据.您只需要为one2many字段创建值.例如
def on_change_cours_id(self,cr, uid, ids,examen_id,salle_de_classe_id,cours_id,aca_id,context=None): context=context or {} note_ids = [] value = {} if ids: old_note_ids = self.pool.get('schoolem.note_evaluation').search(cr, uid,[('evaluation_id','in',ids)]) self.pool.get('schoolem.note_evaluation').unlink(cr, uid, old_note_ids) etudiant_ids = [] #search for etudiant_ids with the conditions examen_id,salle_de_classe_id,cours_id,aca_id etc for etud_id in etudiant_ids: note_ids.append((0,0,{'name':0,'etudiant_id':etud_id})) value.update(note_ids=note_ids) return {'value':value}
在这里我做了一个取消链接,因为当你保存这条记录并再次以某种方式加载onchange时,将显示新的one2many列表.但是当保存时,你可以看到旧记录和新记录.SO unlink将删除旧记录.另外,当附加到note_ids时,我使用了0,0,{values}的元组,以下是对此的解释
(0, 0, { values }) link to a new record that needs to be created with the given values dictionary (1, ID, { values }) update the linked record with id = ID (write *values* on it) (2, ID) remove and delete the linked record with id = ID (calls unlink on ID, that will delete the object completely, and the link to it as well) (3, ID) cut the link to the linked record with id = ID (delete the relationship between the two objects but does not delete the target object itself) (4, ID) link to existing record with id = ID (adds a relationship) (5) unlink all (like using (3,ID) for all linked records) (6, 0, [IDs]) replace the list of linked IDs (like using (5) then (4,ID) for each ID in the list of IDs)