Database update for it

@Author Ruibin Si

src/educoder/database/database.py

@@ -1,3 +1,36 @@
 class Database(object):
     def connection(self):
         pass
+
+    def init(self):
+        pass
+
+    def addBook(self, unique_id, isbn, state):
+        pass
+
+    def removeBook(self, unique_id):
+        pass
+
+    def addUser(self, user_id, userpass_word, permission, nick_name):
+        pass
+
+    def removeUser(self, unique_id):
+        pass
+
+    def addBookInformation(self, isbn, author, description, price, made_time, image, category):
+        pass
+
+    def removeBookInformation(self, isbn):
+        pass
+
+    def brownBook(self, unique_id, brownuser):
+        pass
+
+    def stillBook(self, unique_id):
+        pass
+
+    def addCategory(self, category):
+        pass
+
+    def removeCategory(self, category):
+        pass

src/educoder/database/database_sqlite.py

@@ -1,6 +1,6 @@
 import database
 import sqlite3
-
+import  datetime
 
 class DatabaseSQLite(database.Database):
     conn = sqlite3.connect
@@ -8,3 +8,93 @@ class DatabaseSQLite(database.Database):
     def connection(self):
         self.conn = sqlite3.connect("../../../data/lib_manager.db")
 
+    def init(self):
+        self.conn.cursor().execute('''CREATE TABLE user(account INTEGER, userid INTEGER, password INTEGER, 
+        permission VARCHAR, nickname VARCHAR, PRIMARY KEY(account))''')
+        self.conn.cursor().execute('''CREATE TABLE book_type(type CHAR, PRIMARY KEY(type))''')
+        self.conn.cursor().execute(
+            '''CREATE TABLE book_main(unique_id INTEGER, isbn INTEGER, state INTEGER, PRIMARY KEY(unique_id))''')
+        self.conn.cursor().execute(
+            '''CREATE TABLE book_loc(unique_id INTEGER, loc INTEGER, Primary KEY(unique_id) FOREIGN KEY(unique_id) 
+            REFERENCES(book_main))''')
+        self.conn.cursor().execute(
+            '''CREATE TABLE book_record(unique_id INTEGER, brown_time INTEGER, real_still_time INTEGER, expect_still_time 
+            INTEGER, brown_user VARCHAR, PRIMARY KEY(unique_id) FOREIGN KEY(unique_id)REFERENCES(book_main))''')
+        self.conn.cursor().execute(
+            '''CREATE TABLE book_information(isbn INTEGER, author VARCHAR, description, price INTEGER, made_time 
+            INTEGER, image VARCHAR, type CHAR ,PRIMARY KEY(isbn) FOREIGN KEY(unique_id)REFERENCES(book_main))''')
+
+        self.conn.commit()
+
+    def addBook(self, unique_id, isbn, state):
+        self.conn.cursor().execute("INSERT INTO book_main(unique_id, isbn, state) VALUES("+unique_id+", "+isbn+", "+state+")")
+
+        self.conn.commit()
+        return True
+
+    def removeBook(self, unique_id):
+        self.conn.cursor().execute("DELETE FORM book_main WHERE unique_id")
+
+        self.conn.commit()
+        return True
+
+    def addUser(self, user_id, userpass_word, permission, nick_name):
+        self.conn.cursor().execute("INSERT INTO user(user_id, userpass_word, permission, nick_name) VALUES ("+user_id+", "+userpass_word+", "+permission+", "+nick_name+")")
+
+        self.conn.commit()
+        return True
+
+    def removeUser(self, unique_id):
+        self.conn.cursor().execute("DELETE FORM user WHERE unique_id")
+
+        self.conn.commit()
+        return True
+
+    def addBookInformation(self, isbn, author, description, price, made_time, image, category):
+        self.conn.cursor().execute("INSERT INTO book_information(isbn, author, description, price, made_time, image, "
+                                   "category) VALUES ("+isbn+", "+author+", "+description+","+price+", "+made_time+", "+image+","+category+")")
+
+        self.conn.commit()
+        return True
+
+    def removeBookInformation(self, isbn):
+        self.conn.cursor().execute("DELETE FORM book_information WHERE isbn")
+
+        self.conn.commit()
+        return True
+
+    def brownBook(self, unique_id, brown_user):
+        flag = self.conn.cursor().execute("SELECT state FROM book_main")
+        if flag:
+            self.conn.cursor().execute("UPDATE book_main SET state = false")
+            self.conn.cursor().execute(
+                "INSERT INTO book_record(unique_id, brown_time, real_still_time, expect_still_time, brown_user) VALUES("+unique_id+", "+datetime.datetime.now()+","+0+", "+30+","+brown_user+")")
+            self.conn.commit()
+            return True
+        else:
+            return False
+
+    def stillBook(self, unique_id):
+        flag = self.conn.cursor().execute("SELECT state FROM book_main")
+        if not flag:
+            self.conn.cursor().execute("UPDATE book_main SET state = true")
+
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