Dynamo Civil 3D .NET api check block definition and create if not found

Civil3D
,
1

Hi. I created a function to check if a block definition is created in the drawing. If so, the code is supposed to skip it and if not to create a new one. Its a quick and dirty version so a lot of things to be improved however it seems to work correctly as long as I run it on a single item. If I attempt to run in on more than one item it crashes. Any advices?
Please see my code:

# Load the Python Standard and DesignScript Libraries
import sys
import clr
import math
import datetime

# Add Assemblies for AutoCAD
clr.AddReference('AcMgd')
clr.AddReference('AcCoreMgd')
clr.AddReference('AcDbMgd')

# Import references from AutoCAD
from Autodesk.AutoCAD.Runtime import *
from Autodesk.AutoCAD.ApplicationServices import *
from Autodesk.AutoCAD.ApplicationServices.Core import *
from Autodesk.AutoCAD.EditorInput import *
from Autodesk.AutoCAD.DatabaseServices import *
from Autodesk.AutoCAD.Geometry import *

# Access the active AutoCAD document
adoc = Application.DocumentManager.MdiActiveDocument
editor = adoc.Editor
database = adoc.Database

# Initialize counter
outp = []
modelID = []
chkname = IN[0]
print('New run: ' + str(datetime.datetime.utcnow().isoformat()))

def checkandcreateblocdefs(blockdefinitionname):
    blockdefid = None
    #print(blockdefid)
    out_stat = []
    if 1 == 1:
        # Start transaction
        with adoc.LockDocument():
            with database as db:
                # Start transaction
                with db.TransactionManager.StartTransaction() as t:
                    # Open the Block table for read
                    block_table = t.GetObject(db.BlockTableId, OpenMode.ForRead)
                    for elemID in block_table:
                        elem = t.GetObject(elemID, OpenMode.ForRead)
                        if elem.Name == blockdefinitionname:
                            blockdefid = elemID
                            print(blockdefid)
                            elemRefIds = elem.GetBlockReferenceIds(False, True)
                            elemRefIdsCount = len(elemRefIds)
                            out_stat.append("Found __" + elem.Name + "__ with number of occurances " + str(len(elemRefIds)))
                            ##print ("to ten! " + elem.Name + " " + str(len(elemRefIds)))
                            break
                    ##
                    ##
                    if blockdefid == None:
                        newBTR = BlockTableRecord()
                        newBTR.Name = blockdefinitionname
                        block_table.UpgradeOpen()
                        block_table.Add(newBTR) 
                        t.AddNewlyCreatedDBObject(newBTR, True)
                        out_stat.append("definition created__" + newBTR.Name + "__")
                    ##
                    ##
                    t.Commit()
                    pass  
    return out_stat
chkname = ["a","AeccArrow"]
if chkname != None:   
    for chknamee in chkname:
        #a1=checkandcreateblocdefs(chknamee)
        #outp.append(a1)
        print(type(chknamee) is str)
        print(type(chknamee))
        print(chknamee)
        outp.append(checkandcreateblocdefs(chknamee))
        break
else:
    outp.append("No input")
#a = checkandcreateblocdefs("a")
#b = checkandcreateblocdefs("AeccArrow")
OUT = outp
2

Hi @majkel

try to replace
with database as db:

by

with adoc.Database as db:

3

What a spot! worked like a charm!
Thanks @c.poupin

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