Separate repositories (#25)

* Separate Repository into multiple Repositories

* Use struct scan for transactions

* Use struct scan for blocks

* Remove unused block repo methods

* Update naming

* Rename / Cleanup repository related fields

db/migrations/1517538273_update_gas_limit_gas_used.down.sql

@@ -0,0 +1,17 @@
+BEGIN;
+ALTER TABLE blocks
+  ALTER COLUMN block_gaslimit TYPE DOUBLE PRECISION USING block_gaslimit :: DOUBLE PRECISION;
+
+ALTER TABLE blocks
+  ALTER COLUMN block_gasused TYPE DOUBLE PRECISION USING block_gasused :: DOUBLE PRECISION;
+
+ALTER TABLE blocks
+  ALTER COLUMN block_time TYPE DOUBLE PRECISION USING block_time :: DOUBLE PRECISION;
+
+ALTER TABLE blocks
+  ALTER COLUMN block_reward TYPE NUMERIC USING block_time :: NUMERIC;
+
+ALTER TABLE blocks
+  ALTER COLUMN block_uncles_reward TYPE NUMERIC USING block_time :: NUMERIC;
+
+COMMIT;

db/migrations/1517538273_update_gas_limit_gas_used.up.sql

@@ -0,0 +1,17 @@
+BEGIN;
+ALTER TABLE blocks
+  ALTER COLUMN block_gaslimit TYPE BIGINT USING block_gaslimit :: BIGINT;
+
+ALTER TABLE blocks
+  ALTER COLUMN block_gasused TYPE BIGINT USING block_gasused :: BIGINT;
+
+ALTER TABLE blocks
+  ALTER COLUMN block_time TYPE BIGINT USING block_time :: BIGINT;
+
+ALTER TABLE blocks
+  ALTER COLUMN block_reward TYPE DOUBLE PRECISION USING block_time :: DOUBLE PRECISION;
+
+ALTER TABLE blocks
+  ALTER COLUMN block_uncles_reward TYPE DOUBLE PRECISION USING block_time :: DOUBLE PRECISION;
+
+COMMIT;

db/schema.sql

@@ -69,9 +69,9 @@ CREATE VIEW block_stats AS
 
 CREATE TABLE blocks (
     block_number bigint,
-    block_gaslimit double precision,
-    block_gasused double precision,
-    block_time double precision,
+    block_gaslimit bigint,
+    block_gasused bigint,
+    block_time bigint,
     id integer NOT NULL,
     block_difficulty bigint,
     block_hash character varying(66),
@@ -83,8 +83,8 @@ CREATE TABLE blocks (
     is_final boolean,
     block_miner character varying(42),
     block_extra_data character varying,
-    block_reward numeric,
-    block_uncles_reward numeric
+    block_reward double precision,
+    block_uncles_reward double precision
 );