Coupure prévue mardi 3 Août au matin pour maintenance du serveur. Nous faisons au mieux pour que celle-ci soit la plus brève possible.

models.py 28.6 KB
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from django.db import models
from django.contrib.auth.models import User
from django.db.models.signals import post_save
import workflows.library

import time

from picklefield.fields import PickledObjectField

from workflows.thumbs import ThumbnailField

from mothra.settings import DEBUG
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from mothra.settings import USE_CONCURRENCY
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if USE_CONCURRENCY:
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    from workflows.tasks import runWidgetAsync, runForLoopIteration

class Connection(models.Model):
    output = models.ForeignKey("Output",related_name="connections")
    input = models.ForeignKey("Input",related_name="connections")
    workflow = models.ForeignKey("Workflow",related_name="connections")
   
class Category(models.Model):
    name = models.CharField(max_length=50)
    parent = models.ForeignKey('self',related_name="children",null=True,blank=True)
    user = models.ForeignKey(User,null=True,blank=True,related_name="categories")
    
    workflow = models.ForeignKey('Workflow',null=True,blank=True,related_name="categories")
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    order = models.PositiveIntegerField(default=1)

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    class Meta:
        verbose_name_plural = "categories"
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        ordering = ('order','name',)

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    def __unicode__(self):
        if self.parent is None:
            return unicode(self.name)
        else:
            return unicode(unicode(self.parent)+" :: "+self.name)

class Workflow(models.Model):
    name = models.CharField(max_length=200,default='Untitled workflow')
    user = models.ForeignKey(User,related_name="workflows")
    public = models.BooleanField(default=False)
    description = models.TextField(blank=True,default='')
    widget = models.OneToOneField('Widget',related_name="workflow_link",blank=True,null=True)
    template_parent = models.ForeignKey('Workflow',blank=True,null=True,default=None,on_delete=models.SET_NULL)
    
    
    def is_for_loop(self):
        if self.widgets.filter(type='for_input').count()>0:
            return True
        else:
            return False    
    
    def get_ready_to_run(self):
        widgets = self.widgets.all()
        unfinished_list = []
        for w in widgets:
            if not w.finished and not w.running:
                ready_to_run = True
                connections = self.connections.filter(input__widget=w)
                for c in connections:
                    if not c.output.widget.finished:
                        ready_to_run = False
                        break
                if ready_to_run:
                    unfinished_list.append(w.id)
        return unfinished_list
        
    def get_runnable_widgets(self):
        widgets = self.widgets.all()
        unfinished_list = []
        for w in widgets:
            if not w.finished and not w.running:
                ready_to_run = True
                connections = self.connections.filter(input__widget=w)
                for c in connections:
                    if not c.output.widget.finished:
                        ready_to_run = False
                        break
                if ready_to_run:
                    unfinished_list.append(w)
        return unfinished_list

    def run_for_loop(self):
        #clear for_input and for_output
        fi = self.widgets.filter(type='for_input')[0]
        fo = self.widgets.filter(type='for_output')[0]
        outer_output = fo.inputs.all()[0].outer_output
        outer_output.value=[]
        outer_output.save()
        
        input_list = fi.outputs.all()[0].outer_input.value
        progress_total = len(input_list)
        current_iteration = 0
        for i in input_list:
            fi.unfinish()
            fo.unfinish()
            proper_output = fi.outputs.all()[0]
            proper_output.value = i
            proper_output.save()
            fi.finished=True
            fi.save()
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            if not USE_CONCURRENCY or 1==1:
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                unfinished_list = self.get_runnable_widgets()
                try:
                    while len(unfinished_list)>0:
                        for w in unfinished_list:
                            w.run(True)
                            total = self.widgets.count()
                            completed = self.widgets.filter(finished=True).count()    
                            self.widget.progress = (int)((current_iteration*100.0/progress_total)+(((completed*1.0)/total)*(100/progress_total)))
                            self.widget.save()
                        unfinished_list = self.get_runnable_widgets()
                except:
                    raise
            else:
                unfinished_list = self.get_runnable_widgets()
                try:
                    statuses = {}
                    total = self.widgets.count()
                    completed = self.widgets.filter(finished=True).count()
                    while len(unfinished_list)>0:
                        for w in unfinished_list:
                            if statuses.has_key(w.pk):
                                if statuses[w.pk].failed():
                                    raise Exception(statuses[w.pk].info[0])
                            else:
                                statuses[w.pk]=runWidgetAsync.delay(w)
                            completed = self.widgets.filter(finished=True).count()
                            if self.widget:
                                self.widget.progress = (int)((current_iteration*100.0/progress_total)+(((completed*1.0)/total)*(100/progress_total)))
                                self.widget.save()
                        is_running=True
                        unfinished_list = self.get_runnable_widgets()
                        while len(unfinished_list)==0 and is_running:
                            unfinished_list = self.get_runnable_widgets()
                            is_running = False
                            for st in statuses.values():
                                if st.status == 'PENDING':
                                    is_running = True
                                else:
                                    st.get()
                                    completed = self.widgets.filter(finished=True).count()
                                    if self.widget:
                                        self.widget.progress = (int)((current_iteration*100.0/progress_total)+(((completed*1.0)/total)*(100/progress_total)))
                                        self.widget.save()                         
                            unfinished_list = self.get_runnable_widgets()
                except:
                    raise
            current_iteration = current_iteration+1

    def run(self):
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        if not USE_CONCURRENCY or not self.widget:
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            unfinished_list = self.get_runnable_widgets()
            try:
                total = self.widgets.count()
                completed = self.widgets.filter(finished=True).count()
                while len(unfinished_list)>0:
                    for w in unfinished_list:
                        w.run(True)
                        #runWidgetAsync.delay(w)
                        completed = self.widgets.filter(finished=True).count()
                        if self.widget:
                            self.widget.progress = (int)(((completed*1.0)/total)*100)
                            self.widget.save()
                    unfinished_list = self.get_runnable_widgets()
            except:
                raise
        else:
            unfinished_list = self.get_runnable_widgets()
            try:
                statuses = {}
                total = self.widgets.count()
                completed = self.widgets.filter(finished=True).count()
                while len(unfinished_list)>0:
                    for w in unfinished_list:
                        if statuses.has_key(w.pk):
                            if statuses[w.pk].failed():
                                raise Exception(statuses[w.pk].info[0])
                        else:
                            statuses[w.pk]=runWidgetAsync.delay(w)
                        completed = self.widgets.filter(finished=True).count()
                        if self.widget:
                            self.widget.progress = (int)(((completed*1.0)/total)*100)
                            self.widget.save()
                    is_running=True
                    unfinished_list = self.get_runnable_widgets()                    
                    while len(unfinished_list)==0 and is_running:
                        unfinished_list = self.get_runnable_widgets()
                        is_running = False
                        for st in statuses.values():
                            if st.status == 'PENDING':
                                is_running = True
                            else:
                                st.get()
                                completed = self.widgets.filter(finished=True).count()
                                if self.widget:
                                    self.widget.progress = (int)(((completed*1.0)/total)*100)
                                    self.widget.save() 
                        time.sleep(1)
                    unfinished_list = self.get_runnable_widgets()  
            except:
                raise
    def rename(self,new_name):
        self.name = new_name
        self.save()       
 
    @models.permalink
    def get_absolute_url(self):
        return ('open workflow', [str(self.id)])        
        
    @models.permalink
    def get_copy_url(self):
        return ('copy workflow', [str(self.id)])
        
    @models.permalink
    def get_info_url(self):
        return ('workflow information', [str(self.id)])
    
    def __unicode__(self):
        return unicode(self.name)
        
    class Meta:
        ordering = ['name']        

class AbstractWidget(models.Model):
    name = models.CharField(max_length=200)
    action = models.CharField(max_length=200)
    wsdl = models.URLField(verify_exists=False,max_length=200,blank=True)
    wsdl_method = models.CharField(max_length=200,blank=True,default='')
    description = models.TextField(blank=True)
    category = models.ForeignKey(Category,related_name="widgets")
    visualization_view = models.CharField(max_length=200,blank=True,default='')
    user = models.ForeignKey(User,blank=True,null=True,related_name="widgets")
    interactive = models.BooleanField(default=False)
    interaction_view = models.CharField(max_length=200,blank=True,default='')
    post_interact_action = models.CharField(max_length=200,blank=True,default='')
    
    image = ThumbnailField(blank=True,null=True,upload_to="images",size=(34,34))
    treeview_image = ThumbnailField(blank=True,null=True,upload_to="treeview",size=(16,16))
    
    has_progress_bar = models.BooleanField(default=False)
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    is_streaming = models.BooleanField(default=False)
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    order = models.PositiveIntegerField(default=1)
        
    class Meta:
        ordering = ('order','name',)
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    def __unicode__(self):
        return unicode(self.name)

class AbstractInput(models.Model):
    name = models.CharField(max_length=200)
    short_name = models.CharField(max_length=3)
    description = models.TextField(blank=True)
    variable = models.CharField(max_length=50)
    widget = models.ForeignKey(AbstractWidget,related_name="inputs")
    required = models.BooleanField()
    parameter = models.BooleanField()
    multi = models.BooleanField(default=False)
    default = models.TextField(blank=True)
    PARAMETER_CHOICES = (
        ('text','Single line'),
        ('textarea','Multi line text'),
        ('select', 'Select box'),
        ('checkbox', 'Checkbox'),
        ('file', 'File'),
    )
    parameter_type = models.CharField(max_length=50,choices=PARAMETER_CHOICES,blank=True,null=True)
    
    order = models.PositiveIntegerField(default=1)
    
    def __unicode__(self):
        return unicode(self.name)
        
    class Meta:
        ordering = ('order',)
        
class AbstractOption(models.Model):
    abstract_input = models.ForeignKey(AbstractInput,related_name="options")
    name = models.CharField(max_length=200)
    value = models.TextField(blank=True)
    def __unicode__(self):
        return unicode(self.name)
        
    class Meta:
        ordering = ['name']        

class AbstractOutput(models.Model):
    name = models.CharField(max_length=200)
    short_name = models.CharField(max_length=3)
    description = models.TextField(blank=True)
    variable = models.CharField(max_length=50)
    widget = models.ForeignKey(AbstractWidget,related_name="outputs")
    
    order = models.PositiveIntegerField(default=1)
        
    class Meta:
        ordering = ('order',)    
    
    def __unicode__(self):
        return unicode(self.name)

class Widget(models.Model):
    workflow = models.ForeignKey(Workflow,related_name="widgets")
    x = models.IntegerField()
    y = models.IntegerField()
    name = models.CharField(max_length=200)
    abstract_widget = models.ForeignKey(AbstractWidget,related_name="instances",blank=True,null=True)
    finished = models.BooleanField(default=False)
    error = models.BooleanField(default=False)
    running = models.BooleanField(default=False)
    interaction_waiting = models.BooleanField(default=False)
    WIDGET_CHOICES = (
        ('regular','Regular widget'),
        ('subprocess','Subprocess widget'),
        ('input', 'Input widget'),
        ('output', 'Output widget'),
    )
    type = models.CharField(max_length=50,choices=WIDGET_CHOICES,default='regular')
    
    progress = models.IntegerField(default=0)
    
    def is_visualization(self):
        try:
            if self.abstract_widget.visualization_view != '':
                return True
        except:
            return False
    
    def ready_to_run(self):
        cons = Connection.objects.filter(input__widget=self)
        for c in cons:
            if not c.output.widget.finished:
                return False
        return True
    
    def unfinish(self):
        if self.finished or self.error:
            self.finished=False
            self.error=False
            self.progress=0
            self.save()
            cons = Connection.objects.filter(output__widget=self)
            for c in cons:
                if c.input.widget.finished:
                    c.input.widget.unfinish()
        if self.type == 'subprocess':
            for w in self.workflow_link.widgets.all():
                w.finished=False
                w.error=False
                w.save()
                if w.type=='subprocess':
                    w.subunfinish()
                    
    def subunfinish(self):
        if self.type == 'subprocess':
            for w in self.workflow_link.widgets.all():
                w.finished=False
                w.error = False
                w.save()
                if w.type=='subprocess':
                    w.subunfinish()
    
    def rename(self,new_name):
        self.name = new_name
        self.save()
        if self.type=='input':
            inp = self.outputs.all()[0]
            inp.short_name = self.name[:3]
            inp.name = self.name
            inp.save()
            inp.outer_input.name = self.name
            inp.outer_input.short_name = self.name[:3]
            inp.outer_input.save()
        if self.type=='output':
            inp = self.inputs.all()[0]
            inp.short_name = self.name[:3]
            inp.name = self.name
            inp.save()
            inp.outer_output.name = self.name
            inp.outer_output.short_name = self.name[:3]
            inp.outer_output.save()            
        try:
            w_link = self.workflow_link
            w_link.name=new_name
            w_link.save()
        except Workflow.DoesNotExist:
            pass
            
    def run(self,offline):
        if not self.ready_to_run():
            raise Exception("The prerequisites for running this widget have not been met.")
        self.running=True
        self.save()
        if self.type == 'regular' or self.type == 'subprocess':
            if not self.abstract_widget is None:
                function_to_call = getattr(workflows.library,self.abstract_widget.action)
            input_dict = {}
            outputs = {}
            for i in self.inputs.all():
                #gremo pogledat ce obstaja povezava in ce obstaja gremo value prebrat iz outputa
                if not i.parameter:
                    if i.connections.count() > 0:
                        i.value = i.connections.all()[0].output.value
                        i.save()
                    else:
                        i.value = None
                        i.save()
                if i.multi_id == 0:
                    input_dict[i.variable]=i.value
                else:
                    if not i.variable in input_dict:
                        input_dict[i.variable]=[]
                    if not i.value==None:
                        input_dict[i.variable].append(i.value)
            try:
                if not self.abstract_widget is None:
                    if self.abstract_widget.wsdl != '':
                        input_dict['wsdl']=self.abstract_widget.wsdl
                        input_dict['wsdl_method']=self.abstract_widget.wsdl_method
                    if self.abstract_widget.has_progress_bar:
                        outputs = function_to_call(input_dict,self)
                    else:
                        outputs = function_to_call(input_dict)
                else:
                    if self.workflow_link.is_for_loop():
                        self.workflow_link.run_for_loop()
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                        #print self.outputs.all()[0].value
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                    else:
                        self.workflow_link.run()
            except:
                self.error=True
                self.running=False
                self.finished=False
                self.save()
                raise
            for o in self.outputs.all():
                if not self.abstract_widget is None:
                    o.value = outputs[o.variable]
                    o.save()
                else:
                    #gremo v outpute pogledat
                    if not self.workflow_link.is_for_loop():
                        o.value = o.inner_input.value
                        o.save()
            if self.abstract_widget is None:
                self.finished=True
                self.running=False
                self.error=False
                self.save()
            else:
                if not self.abstract_widget.interactive or offline:
                    self.finished=True
                    self.running=False
                    self.error=False
                    self.save()
            cons = Connection.objects.filter(output__widget=self)
            for c in cons:
                c.input.widget.unfinish()
            return outputs
        elif self.type == 'for_input':
            for o in self.outputs.all():
                o.value=o.outer_input.value
                o.save()
            self.finished=True
            self.running=False
            self.error=False
            self.save()
        elif self.type == 'for_output':
            for i in self.inputs.all():
                if not i.parameter:
                    if i.connections.count() > 0:
                        i.value = i.connections.all()[0].output.value
                        i.save()
                        i.outer_output.value.append(i.value)
                        i.outer_output.save()
                        self.finished=True
            self.finished=True
            self.running=False
            self.error=False
            self.save()
        elif self.type == 'input':
            for o in self.outputs.all():
                o.value=o.outer_input.value
                o.save()
            self.finished=True
            self.running=False
            self.error=False
            self.save()
        elif self.type == 'output':
            for i in self.inputs.all():
                if not i.parameter:
                    if i.connections.count() > 0:
                        i.value = i.connections.all()[0].output.value
                        i.save()
                        i.outer_output.value = i.value
                        i.outer_output.save()
                        self.finished=True
            self.finished=True                        
            self.running=False
            self.error=False
            self.save()
        return None
        
    def run_post(self,request):
        if not self.ready_to_run():
            raise Exception("The prerequisites for running this widget have not been met.")
        self.running=True
        self.save()
        function_to_call = getattr(workflows.library,self.abstract_widget.post_interact_action)
        input_dict = {}
        outputs = {}
        output_dict = {}
        for o in self.outputs.all():
            output_dict[o.variable]=o.value
        for i in self.inputs.all():
            #gremo pogledat ce obstaja povezava in ce obstaja gremo value prebrat iz outputa
            if not i.parameter:
                if i.connections.count() > 0:
                    i.value = i.connections.all()[0].output.value
                    i.save()
                else:
                    i.value = None
                    i.save()
            if i.multi_id == 0:
                input_dict[i.variable]=i.value
            else:
                if not i.variable in input_dict:
                    input_dict[i.variable]=[]
                if not i.value==None:
                    input_dict[i.variable].append(i.value)
        try:
            if not self.abstract_widget is None:
                outputs = function_to_call(request,input_dict, output_dict)
            else:
                self.workflow_link.run()
        except:
            self.error=True
            self.running=False
            self.finished=False
            self.save()
            raise
        for o in self.outputs.all():
            o.value = outputs[o.variable]
            o.save()
        self.finished=True
        self.running=False
        self.error=False
        self.interaction_waiting=False
        self.save()
        cons = Connection.objects.filter(output__widget=self)
        for c in cons:
            c.input.widget.unfinish()
        return outputs      
    
    def __unicode__(self):
        return unicode(self.name)
        
class Input(models.Model):
    name = models.CharField(max_length=200)
    short_name = models.CharField(max_length=3)
    description = models.TextField(blank=True,null=True)
    variable = models.CharField(max_length=50)
    widget = models.ForeignKey(Widget,related_name="inputs")
    required = models.BooleanField()
    parameter = models.BooleanField()
    value = PickledObjectField(null=True)
    multi_id = models.IntegerField(default=0)
    inner_output = models.ForeignKey('Output',related_name="outer_input_rel",blank=True,null=True) #za subprocess
    outer_output = models.ForeignKey('Output',related_name="inner_input_rel",blank=True,null=True) #za subprocess
    PARAMETER_CHOICES = (
        ('text','Single line'),
        ('textarea','Multi line text'),
        ('select', 'Select box'),
    )
    parameter_type = models.CharField(max_length=50,choices=PARAMETER_CHOICES,blank=True,null=True)
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    order = models.PositiveIntegerField(default=1)

    class Meta:
        ordering = ('order',)
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    def __unicode__(self):
        return unicode(self.name)             
        
class Option(models.Model):
    input = models.ForeignKey(Input,related_name="options")
    name = models.CharField(max_length=200)
    value = models.TextField(blank=True,null=True)
    
    class Meta:
        ordering = ['name']     

class Output(models.Model):
    name = models.CharField(max_length=200)
    short_name = models.CharField(max_length=5)
    description = models.TextField(blank=True)
    variable = models.CharField(max_length=50)
    widget = models.ForeignKey(Widget,related_name="outputs")
    value = PickledObjectField(null=True)
    inner_input = models.ForeignKey(Input,related_name="outer_output_rel",blank=True,null=True) #za subprocess
    outer_input = models.ForeignKey(Input,related_name="inner_output_rel",blank=True,null=True) #za subprocess
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    order = models.PositiveIntegerField(default=1)

    class Meta:
        ordering = ('order',)
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    def __unicode__(self):
        return unicode(self.name)

class UserProfile(models.Model):
    user = models.OneToOneField(User,related_name="userprofile")
    active_workflow = models.ForeignKey(Workflow,related_name="users",null=True,blank=True,on_delete=models.SET_NULL)
    
    def __unicode__(self):
        return unicode(self.user)

def create_user_profile(sender, instance, created, **kwargs):
    profile_set = UserProfile.objects.filter(user__id = instance.id)
    if created and not profile_set.exists():
        UserProfile.objects.create(user=instance)

# nardi da k nardimo userja da se avtomatsko nardi se UserProfile
post_save.connect(create_user_profile, sender=User)

def copy_workflow(old, user, parent_widget_conversion={},parent_input_conversion={},parent_output_conversion={},parent_widget=None):
    w = Workflow()
    if parent_widget is None:
        w.name = old.name+" (copy)"
    else:
        w.name = old.name
    w.user = user
    w.public = False
    w.description = old.description
    w.template_parent = old
    if not parent_widget is None:
        w.widget = parent_widget
    w.save()
    widget_conversion = {}
    input_conversion = {}
    output_conversion = {}
    for widget in old.widgets.all():
        new_widget = Widget()
        new_widget.workflow = w
        new_widget.x = widget.x
        new_widget.y = widget.y
        new_widget.name = widget.name
        new_widget.abstract_widget = widget.abstract_widget
        new_widget.finished = widget.finished
        new_widget.error = widget.error
        new_widget.running = widget.running
        new_widget.interaction_waiting = widget.interaction_waiting
        new_widget.type = widget.type
        new_widget.progress = widget.progress
        new_widget.save()
        widget_conversion[widget.id]=new_widget.id
        for input in widget.inputs.all():
            new_input = Input()
            new_input.name = input.name
            new_input.short_name = input.short_name
            new_input.description = input.description
            new_input.variable = input.variable
            new_input.widget = new_widget
            new_input.required = input.required
            new_input.parameter = input.parameter
            new_input.value = input.value
            new_input.multi_id = input.multi_id
            #inner_output nikol ne nastavlamo
            #outer_output in njemu spremenimo inner input
            if not parent_widget is None:
                if not input.outer_output is None:
                    new_input.outer_output = Output.objects.get(pk=parent_output_conversion[input.outer_output.id])
            new_input.parameter_type = input.parameter_type
            new_input.save()
            for option in input.options.all():
                new_option = Option()
                new_option.input = new_input
                new_option.name = option.name
                new_option.value = option.value
                new_option.save()
            if not parent_widget is None:
                if not input.outer_output is None:
                    new_input.outer_output.inner_input = new_input
                    new_input.outer_output.save()
            input_conversion[input.id]=new_input.id
        for output in widget.outputs.all():
            new_output = Output()
            new_output.name = output.name
            new_output.short_name = output.short_name
            new_output.description = output.description
            new_output.variable = output.variable
            new_output.widget = new_widget
            new_output.value = output.value
            #inner input nikol ne nastavlamo
            #outer input in njemu spremenimo inner output
            if not parent_widget is None:
                if not output.outer_input is None:
                    new_output.outer_input = Input.objects.get(pk=parent_input_conversion[output.outer_input.id])
            new_output.save()
            if not parent_widget is None:
                if not output.outer_input is None:
                    new_output.outer_input.inner_output = new_output
                    new_output.outer_input.save()
            output_conversion[output.id]=new_output.id
    for connection in old.connections.all():
        new_connection = Connection()
        new_connection.workflow = w
        new_connection.output = Output.objects.get(pk=output_conversion[connection.output.id])
        new_connection.input = Input.objects.get(pk=input_conversion[connection.input.id])
        new_connection.save()
    for widget in old.widgets.filter(type='subprocess'):
        #tuki mormo vse subprocesse zrihtat
        copy_workflow(widget.workflow_link, user, widget_conversion, input_conversion, output_conversion, Widget.objects.get(pk=widget_conversion[widget.id]))
    return w