Add pinned flag to contract

Author: cpacia

api/restapi.py

@@ -233,7 +233,8 @@ def parse_listings(listings):
                         "nsfw": l.nsfw,
                         "origin": str(CountryCode.Name(l.origin)),
                         "ships_to": [],
-                        "last_modified": l.last_modified
+                        "last_modified": l.last_modified,
+                        "pinned": l.pinned
                     }
                     if l.contract_type != 0:
                         listing_json["contract_type"] = str(objects.Listings.ContractType.Name(l.contract_type))
@@ -549,6 +550,7 @@ def set_contract(self, request):
             else:
                 c = Contract(self.db, testnet=self.protocol.testnet)
             c.create(
+                str_to_bool(request.args["pinned"][0]),
                 str(request.args["expiration_date"][0]),
                 request.args["metadata_category"][0],
                 request.args["title"][0].decode("utf8"),

market/contracts.py

@@ -94,6 +94,7 @@ def __init__(self, database, contract=None, hash_value=None, testnet=False):
         self.outpoints = []
 
     def create(self,
+               pinned,
                expiration_date,
                metadata_category,
                title,
@@ -150,7 +151,8 @@ def create(self,
                             "version": "1",
                             "category": metadata_category.lower(),
                             "category_sub": "fixed price",
-                            "last_modified": int(time.time())
+                            "last_modified": int(time.time()),
+                            "pinned": pinned
                         },
                         "id": {
                             "guid": self.keychain.guid.encode("hex"),
@@ -1065,6 +1067,7 @@ def save(self):
         elif self.contract["vendor_offer"]["listing"]["metadata"]["category"].lower() == "service":
             data.contract_type = listings.SERVICE
         data.last_modified = int(time.time())
+        data.pinned = self.contract["vendor_offer"]["listing"]["metadata"]["pinned"]
 
         # save the mapping of the contract file path and contract hash in the database
         self.db.filemap.insert(data.contract_hash.encode("hex"), file_path[len(DATA_FOLDER):])

protos/objects.proto

@@ -123,6 +123,7 @@ message Listings {
         string handle                 = 11;
         ContractType contract_type    = 12;
         uint64 last_modified          = 13;
+        bool pinned                   = 14;
     }
 
     enum ContractType {