Zinnia blog (djang) to Ghost blog (node) Article Conversion

converter.py

import json
import datetime, time
import re

# date lambdas
epoch = datetime.datetime.utcfromtimestamp(0)
unix_time_millis = lambda dt: int((dt - epoch).total_seconds() * 1000.0)
zulu_time = lambda s: unix_time_millis(datetime.datetime(*map(int, re.split('[^\d]', s)[:-1])))

# zinnia data exported from the save feature
zinnia_data = json.load(open("./blogs.json")) # the location of the zinnia json data
# once can export this data by

ghost_data = {}

# initialize standard ghost headers
ghost_data["meta"] = {
	"exported_on":unix_time_millis(datetime.datetime.now()), # export datetime
	"version":"003" # current ghost version. This may change!
}


ghost_data["data"] = {
	"posts":[],
	"tags":[],
	"posts_tags": [],
	"users":[],
	"role_users":[]
}

# populate ghost entries
print(len(zinnia_data))
for i in range(0,len(zinnia_data)):
	entry = zinnia_data[i]
	if entry["model"] == "zinnia.entry":
		fields = entry["fields"]
		author_id = 1 # this will just use the default (owner) author on ghost.
		ghost_data["data"]["posts"].append({
			"id":int(entry["pk"]),
			"title":fields["title"],
			"slug":fields["slug"],
			"markdown":fields["content"],
			"html":fields["content"],
			"image":"/content/images/" + "/".join(fields["image"].split("/")[2:]),
			"featured":0,
			"page":0,
			"status":"published",
			"language":"en_US",
			"meta_title":None,
			"meta_description":None,
			"author_id":author_id,
			"created_at":zulu_time(fields["creation_date"]),
			"created_by":author_id,
			"updated_at":zulu_time(fields["last_update"]),
			"updated_by":author_id,
			"published_at":zulu_time(fields["publication_date"]),
			"published_by":author_id,
		})

		for tag in fields["tags"].split(","):
			if len(tag) > 0:
				tag_id = len(ghost_data["data"]["tags"])
				ghost_data["data"]["tags"].append({
					"id": tag_id,
					"name": tag,
					"slug": tag.lower(),
					"description":""
				})

				ghost_data["data"]["posts_tags"].append({
					"tag_id":tag_id,
					"post_id":entry["pk"]
				})


with open("ghost.json","w") as f:
	f.write(json.dumps(ghost_data,indent=4))