From: Łukasz Rekucki <lrekucki@gmail.com>
Date: Sat, 26 Sep 2009 17:01:53 +0000 (+0200)
Subject: Added upload_document managment command.
X-Git-Url: https://git.mdrn.pl/redakcja.git/commitdiff_plain/085dd288093e1fd5455cc4db9f82998f05656a14?ds=inline;hp=--cc

Added upload_document managment command.
---

085dd288093e1fd5455cc4db9f82998f05656a14
diff --git a/apps/api/handlers/library_handlers.py b/apps/api/handlers/library_handlers.py
index 8862de0c..552eb6f6 100644
--- a/apps/api/handlers/library_handlers.py
+++ b/apps/api/handlers/library_handlers.py
@@ -14,12 +14,14 @@ from datetime import date
 
 from django.core.urlresolvers import reverse
 
-from wlrepo import RevisionNotFound, DocumentAlreadyExists
+from wlrepo import RevisionNotFound, LibraryException, DocumentAlreadyExists
 from librarian import dcparser
 
 import api.response as response
 from api.utils import validate_form, hglibrary
 
+from explorer.models import PullRequest
+
 #
 # Document List Handlers
 #
@@ -56,7 +58,7 @@ class LibraryHandler(BaseHandler):
         """Create a new document."""       
 
         if form.cleaned_data['ocr_data']:
-            data = form.cleaned_data['ocr_data'].encode('utf-8')
+            data = form.cleaned_data['ocr_data']
         else:            
             data = request.FILES['ocr_file'].read().decode('utf-8')
 
@@ -64,20 +66,34 @@ class LibraryHandler(BaseHandler):
             data = librarian.wrap_text(data, unicode(date.today()))
 
         docid = form.cleaned_data['bookname']
+
         try:
-            doc = lib.document_create(docid)
-            doc = doc.quickwrite('xml', data, '$AUTO$ XML data uploaded.',
-                user=request.user.username)
-
-            url = reverse('document_view', args=[doc.id])
-
-            return response.EntityCreated().django_response(\
-                body = {
-                    'url': url,
-                    'name': doc.id,
-                    'revision': doc.revision },
-                url = url )
-                
+            lock = lib.lock()            
+            try:
+                doc = lib.document_create(docid)
+                # document created, but no content yet
+
+                try:
+                    doc = doc.quickwrite('xml', data.encode('utf-8'),
+                        '$AUTO$ XML data uploaded.', user=request.user.username)
+                except Exception,e:
+                    # rollback branch creation
+                    lib._rollback()
+                    raise LibraryException("Exception occured:" + repr(e))
+
+                url = reverse('document_view', args=[doc.id])
+
+                return response.EntityCreated().django_response(\
+                    body = {
+                        'url': url,
+                        'name': doc.id,
+                        'revision': doc.revision },
+                    url = url )            
+            finally:
+                lock.release()
+        except LibraryException, e:
+            return response.InternalError().django_response(\
+                {'exception': repr(e) })                
         except DocumentAlreadyExists:
             # Document is already there
             return response.EntityConflict().django_response(\
@@ -278,8 +294,72 @@ class MergeHandler(BaseHandler):
     def create(self, request, form, docid, lib):
         """Create a new document revision from the information provided by user"""
 
-        pass
+        target_rev = form.cleaned_data['target_revision']
 
-        
-        
-        
+        doc = lib.document(docid)
+        udoc = doc.take(request.user.username)
+
+        if target_rev == 'latest':
+            target_rev = udoc.revision
+
+        if udoc.revision != target_rev:
+            # user think doesn't know he has an old version
+            # of his own branch.
+            
+            # Updating is teorericly ok, but we need would
+            # have to force a refresh. Sharing may be not safe,
+            # 'cause it doesn't always result in update.
+
+            # In other words, we can't lie about the resource's state
+            # So we should just yield and 'out-of-date' conflict
+            # and let the client ask again with updated info.
+
+            # NOTE: this could result in a race condition, when there
+            # are 2 instances of the same user editing the same document.
+            # Instance "A" trying to update, and instance "B" always changing
+            # the document right before "A". The anwser to this problem is
+            # for the "A" to request a merge from 'latest' and then
+            # check the parent revisions in response, if he actually
+            # merge from where he thinks he should. If not, the client SHOULD
+            # update his internal state.
+            return response.EntityConflict().django_response({
+                    "reason": "out-of-date",
+                    "provided": target_revision,
+                    "latest": udoc.revision })
+
+        if not request.user.has_permission('explorer.pull_request.can_add'):
+            # User is not permitted to make a merge, right away
+            # So we instead create a pull request in the database
+            prq = PullRequest(
+                commiter=request.uset.username,
+                document=docid,
+                source_revision = udoc.revision,
+                status="N",
+                comment = form.cleaned_data['comment']
+            )
+
+            prq.save()
+            return response.RequestAccepted()
+
+        if form.cleanded_data['type'] == 'update':
+            # update is always performed from the file branch
+            # to the user branch
+            success, changed = udoc.update(request.user.username)
+
+        if form.cleanded_data['type'] == 'share':
+            success, changed = udoc.share(form.cleaned_data['comment'])
+
+        if not success:
+            return response.EntityConflict().django_response()
+
+        if not changed:
+            return response.SuccessNoContent().django_response()
+
+        new_udoc = udoc.latest()
+
+        return response.SuccessAllOk().django_response({
+            "name": udoc.id,
+            "parent_user_resivion": udoc.revision,
+            "parent_revision": doc.revision,
+            "revision": udoc.revision,
+        })
\ No newline at end of file
diff --git a/apps/api/management/__init__.py b/apps/api/management/__init__.py
new file mode 100644
index 00000000..5ff26b2a
--- /dev/null
+++ b/apps/api/management/__init__.py
@@ -0,0 +1,4 @@
+# To change this template, choose Tools | Templates
+# and open the template in the editor.
+
+
diff --git a/apps/api/management/commands/__init__.py b/apps/api/management/commands/__init__.py
new file mode 100644
index 00000000..5ff26b2a
--- /dev/null
+++ b/apps/api/management/commands/__init__.py
@@ -0,0 +1,4 @@
+# To change this template, choose Tools | Templates
+# and open the template in the editor.
+
+
diff --git a/apps/api/management/commands/upload_document.py b/apps/api/management/commands/upload_document.py
new file mode 100644
index 00000000..66ef9243
--- /dev/null
+++ b/apps/api/management/commands/upload_document.py
@@ -0,0 +1,42 @@
+#!/usr/bin/env python
+# -*- conding: utf-8 -*-
+__author__="lreqc"
+__date__ ="$2009-09-08 14:31:26$"
+
+from django.core.management.base import BaseCommand
+from django.utils import simplejson as json
+from django.test.client import Client
+from django.core.urlresolvers import reverse
+
+from optparse import make_option
+
+class Command(BaseCommand):
+    
+    option_list = BaseCommand.option_list + (
+        make_option('-u', '--user', action='store', dest='username'),
+        make_option('-p', '--password', action='store', dest='password'),
+        make_option('-d', '--dublin-core', action='store_true', dest='dc'),
+    )
+    
+    def handle(self, *args, **options):
+        client = Client()
+        if not options['username'] or not options['password']:
+            raise CommandError("You must provide login data")
+
+        client.login(username=options['username'], \
+            password=options['password'])
+
+        print options['username'], options['password']
+        
+        filename = args[0]
+        bookname = args[1]
+
+        print "Uploading '%s' as document '%s'" % (filename, bookname)
+        print "Wth DC template" if options['dc'] else ""
+
+        print client.post( reverse("document_list_view"),\
+        {
+            'bookname': bookname,
+            'ocr_file': open(filename),
+            'generate_dc': options['dc'] } )
+                  
diff --git a/apps/api/response.py b/apps/api/response.py
index c1401635..a094f9c1 100644
--- a/apps/api/response.py
+++ b/apps/api/response.py
@@ -98,9 +98,12 @@ class EntityConflict(ResponseObject):
 #
 # Server side errors
 #
-class NotImplemented(ResponseObject):
+class InternalError(ResponseObject):
 
     def __init__(self, **kwargs):
-        ResponseObject.__init__(self, 501, **kwargs) 
+        ResponseObject.__init__(self, 500, **kwargs)
 
+class NotImplemented(ResponseObject):
 
+    def __init__(self, **kwargs):
+        ResponseObject.__init__(self, 501, **kwargs) 
\ No newline at end of file
diff --git a/apps/api/tests/__init__.py b/apps/api/tests/__init__.py
index acf92f5c..72b41326 100644
--- a/apps/api/tests/__init__.py
+++ b/apps/api/tests/__init__.py
@@ -19,6 +19,7 @@ def temprepo(name):
 
     def decorator(func):
 
+
         @wraps(func)
         def decorated(self, *args, **kwargs):
             clean = False
diff --git a/apps/explorer/admin.py b/apps/explorer/admin.py
index 7932f4eb..b496893f 100644
--- a/apps/explorer/admin.py
+++ b/apps/explorer/admin.py
@@ -4,4 +4,5 @@ from django.utils.translation import ugettext_lazy as _
 import explorer.models
 
 admin.site.register(explorer.models.EditorSettings)
-admin.site.register(explorer.models.EditorPanel)
\ No newline at end of file
+admin.site.register(explorer.models.EditorPanel)
+admin.site.register(explorer.models.PullRequest)
\ No newline at end of file
diff --git a/apps/explorer/models.py b/apps/explorer/models.py
index a1cb56cf..0a3a252d 100644
--- a/apps/explorer/models.py
+++ b/apps/explorer/models.py
@@ -64,20 +64,30 @@ class Book(models.Model):
 
 
 class PullRequest(models.Model):
-    comitter = models.ForeignKey(User) # the user who request the pull 
-    file = models.CharField(max_length=256) # the file to request
-    source_rev = models.CharField(max_length=40) # revision number of the commiter
 
+    REQUEST_STATUSES = (
+        ("N", "Pending for resolution"),
+        ("R", "Rejected"),
+        ("A", "Accepted & merged"),
+    )
+
+    comitter = models.ForeignKey(User) # the user who request the pull
     comment = models.TextField() # addtional comments to the request
 
-    # revision number in which the changes were merged (if any)
-    merged_rev = models.CharField(max_length=40, null=True) 
-    
-    def __unicode__(self):
-        return u"Pull request from %s, source: %s %s, status: %s." % \
-            (self.commiter, self.file, self.source_rev, \
-                (("merged into "+self.merged_rev) if self.merged_rev else "pending") )
+    # document to merge
+    document = models.CharField(max_length=255)
 
+    # revision to be merged into the main branch
+    source_revision = models.CharField(max_length=40)
+
+    # current status
+    status = models.CharField(max_length=1, choices=REQUEST_STATUSES)
+
+    # comment to the status change of request (if applicable)
+    response_comment = models.TextField(blank=True)
+
+    # revision number in which the changes were merged (if any)
+    merged_rev = models.CharField(max_length=40, blank=True, null=True)        
     
 def get_image_folders():
     return sorted(fn for fn in os.listdir(os.path.join(settings.MEDIA_ROOT, settings.IMAGE_DIR)) if not fn.startswith('.'))
diff --git a/lib/wlrepo/mercurial_backend/__init__.py b/lib/wlrepo/mercurial_backend/__init__.py
index 10a4cf8a..2815881b 100644
--- a/lib/wlrepo/mercurial_backend/__init__.py
+++ b/lib/wlrepo/mercurial_backend/__init__.py
@@ -6,8 +6,6 @@ __doc__ = "Module documentation."
 
 import wlrepo
 
-
-
 class MercurialRevision(wlrepo.Revision):
 
     def __init__(self, lib, changectx):
@@ -70,8 +68,12 @@ class MercurialRevision(wlrepo.Revision):
         lock = self._library._lock(True)
         try:
             self._library._checkout(self._changectx.node())
-            self._library._merge(other._changectx.node())
-            self._library._commit(user=user, message=message)
+            status = self._library._merge(other._changectx.node())
+            if status.is_clean():
+                self._library._commit(user=user, message=message)
+                return (True, True)
+            else:
+                return (False, False)
         finally:
             lock.release()
 
diff --git a/lib/wlrepo/mercurial_backend/document.py b/lib/wlrepo/mercurial_backend/document.py
index 657fa6e3..c7f2f9f7 100644
--- a/lib/wlrepo/mercurial_backend/document.py
+++ b/lib/wlrepo/mercurial_backend/document.py
@@ -22,12 +22,13 @@ class MercurialDocument(wlrepo.Document):
             f = l._fileopen(r(entry), "w+")
             f.write(data)
             f.close()
-            l._fileadd(r(entry))
+            l._fileadd(r(entry))            
 
         return self.invoke_and_commit(write, lambda d: (msg, user))
 
-    def invoke_and_commit(self, ops, before_commit):
-        lock = self._library._lock()
+    def invoke_and_commit(self, ops,
+            before_commit, rollback=False):
+        lock = self._library.lock()
         try:            
             self._library._checkout(self._revision.hgrev())
 
@@ -37,11 +38,10 @@ class MercurialDocument(wlrepo.Document):
             ops(self._library, entry_path)
             message, user = before_commit(self)            
             self._library._commit(message, user)
-
-            return self._library.document(docid=self.id, user=self.owner)
+            return self._library.document(docid=self.id, user=self.owner)       
         finally:
-            lock.release()            
-
+            lock.release()
+        
     # def commit(self, message, user):
     #    """Make a new commit."""
     #    self.invoke_and_commit(message, user, lambda *a: True)
@@ -52,7 +52,11 @@ class MercurialDocument(wlrepo.Document):
     def shared(self):
         if self.ismain():
             return self
-        return self._library.document(docid=self._revision.document_name())
+        
+        return self._library.document(docid=self.id)
+
+    def latest(self):
+        return self._library.document(docid=self.id, user=self.owner)
 
     def take(self, user):
         fullid = self._library.fulldocid(self.id, user)
@@ -69,37 +73,34 @@ class MercurialDocument(wlrepo.Document):
             
     def update(self, user):
         """Update parts of the document."""
-        lock = self.library._lock()
+        lock = self.library.lock()
         try:
             if self.ismain():
                 # main revision of the document
-                return True
+                return (True, False)
             
             if self._revision.has_children():
                 # can't update non-latest revision
-                return False
+                return (False, False)
 
             sv = self.shared()
             
             if not sv.ancestorof(self) and not self.parentof(sv):
-                self._revision.merge_with(sv._revision, user=user)
+                return self._revision.merge_with(sv._revision, user=user)
 
-            return True
+            return (False, False)
         finally:
             lock.release()  
 
     def share(self, message):
-        lock = self.library._lock()
+        lock = self.library.lock()
         try:            
             if self.ismain():
-                return True # always shared          
+                return (True, False) # always shared
 
             user = self._revision.user_name()
-
             main = self.shared()._revision
-            local = self._revision
-
-            no_changes = True
+            local = self._revision            
 
             # Case 1:
             #         * local
@@ -116,8 +117,7 @@ class MercurialDocument(wlrepo.Document):
 
             if main.ancestorof(local):
                 print "case 1"
-                main.merge_with(local, user=user, message=message)
-                no_changes = False
+                success, changed = main.merge_with(local, user=user, message=message)                
             # Case 2:
             #
             # main *  * local
@@ -131,8 +131,7 @@ class MercurialDocument(wlrepo.Document):
             elif local.has_common_ancestor(main):
                 print "case 2"
                 if not local.parentof(main):
-                    main.merge_with(local, user=user, message=message)
-                    no_changes = False
+                    success, changed = main.merge_with(local, user=user, message=message)
 
             # Case 3:
             # main *
@@ -151,16 +150,24 @@ class MercurialDocument(wlrepo.Document):
             elif local.ancestorof(main):
                 print "case 3"
                 if not local.parentof(main):
-                    local.merge_with(main, user=user, message='Local branch update.')
-                    no_changes = False
+                    success, changed = local.merge_with(main, user=user, \
+                        message='$AUTO$ Local branch update during share.')
+                    
             else:
                 print "case 4"
-                local.merge_with(main, user=user, message='Local branch update.')
-                local = self.shelf()
-                main.merge_with(local, user=user, message=message)
+                success, changed = local.merge_with(main, user=user, \
+                        message='$AUTO$ Local branch update during share.')
 
-            print "no_changes: ", no_changes
-            return no_changes
+                if not success:
+                    return False
+
+                if changed:
+                    local = local.latest()
+                    
+                success, changed = main.merge_with(local, user=user,\
+                    message=message)
+            
+            return success, changed
         finally:
             lock.release()     
 
diff --git a/lib/wlrepo/mercurial_backend/library.py b/lib/wlrepo/mercurial_backend/library.py
index e9861f4c..82b5263f 100644
--- a/lib/wlrepo/mercurial_backend/library.py
+++ b/lib/wlrepo/mercurial_backend/library.py
@@ -147,11 +147,11 @@ class MercurialLibrary(wlrepo.Library):
     # Locking
     #
 
-    def _lock(self, write_mode=False):
+    def lock(self, write_mode=False):
         return self._hgrepo.wlock() # no support for read/write mode yet
 
     def _transaction(self, write_mode, action):
-        lock = self._lock(write_mode)
+        lock = self.lock(write_mode)
         try:
             return action(self)
         finally:
@@ -199,6 +199,9 @@ class MercurialLibrary(wlrepo.Library):
     def _changectx(self, nodeid):
         return self._hgrepo.changectx(nodeid)
 
+    def _rollback(self):
+        return self._hgrepo.rollback()
+
     #
     # BASIC BRANCH routines
     #