diff --git a/database/.idea/workspace.xml b/database/.idea/workspace.xml
new file mode 100644
index 0000000..ac4da8b
--- /dev/null
+++ b/database/.idea/workspace.xml
@@ -0,0 +1,385 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ChangeListManager">
+    <list default="true" id="56db31ee-e880-459e-8658-4fd5f8fea63b" name="Default Changelist" comment="">
+      <change beforePath="$PROJECT_DIR$/templates/index.html" beforeDir="false" afterPath="$PROJECT_DIR$/templates/index.html" afterDir="false" />
+    </list>
+    <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
+    <option name="TRACKING_ENABLED" value="true" />
+    <option name="SHOW_DIALOG" value="false" />
+    <option name="HIGHLIGHT_CONFLICTS" value="true" />
+    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
+    <option name="LAST_RESOLUTION" value="IGNORE" />
+  </component>
+  <component name="DatabaseView">
+    <option name="SHOW_INTERMEDIATE" value="true" />
+    <option name="GROUP_DATA_SOURCES" value="false" />
+    <option name="GROUP_SCHEMA" value="true" />
+    <option name="GROUP_CONTENTS" value="false" />
+    <option name="SORT_POSITIONED" value="false" />
+    <option name="SHOW_EMPTY_GROUPS" value="false" />
+    <option name="AUTO_SCROLL_FROM_SOURCE" value="false" />
+    <option name="HIDDEN_KINDS">
+      <set />
+    </option>
+    <expand>
+      <path>
+        <item name="Database" type="3277223f:DatabaseStructure$DbRootGroup" />
+        <item name="db.sqlite3" type="feb32156:DbDataSourceImpl" />
+      </path>
+    </expand>
+    <select />
+  </component>
+  <component name="DjangoConsoleOptions" custom-start-script="import sys; print('Python %s on %s' % (sys.version, sys.platform))&#10;import django; print('Django %s' % django.get_version())&#10;sys.path.extend([WORKING_DIR_AND_PYTHON_PATHS])&#10;if 'setup' in dir(django): django.setup()&#10;import django_manage_shell; django_manage_shell.run(PROJECT_ROOT)">
+    <option name="myCustomStartScript" value="import sys; print('Python %s on %s' % (sys.version, sys.platform))&#10;import django; print('Django %s' % django.get_version())&#10;sys.path.extend([WORKING_DIR_AND_PYTHON_PATHS])&#10;if 'setup' in dir(django): django.setup()&#10;import django_manage_shell; django_manage_shell.run(PROJECT_ROOT)" />
+  </component>
+  <component name="FileEditorManager">
+    <leaf SIDE_TABS_SIZE_LIMIT_KEY="300" />
+  </component>
+  <component name="FileTemplateManagerImpl">
+    <option name="RECENT_TEMPLATES">
+      <list>
+        <option value="Python Script" />
+      </list>
+    </option>
+  </component>
+  <component name="FindInProjectRecents">
+    <findStrings>
+      <find>static</find>
+      <find>style.</find>
+      <find>style.css</find>
+      <find>slider-section</find>
+    </findStrings>
+    <replaceStrings>
+      <replace />
+      <replace>/static</replace>
+    </replaceStrings>
+  </component>
+  <component name="Git.Settings">
+    <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$/.." />
+  </component>
+  <component name="IdeDocumentHistory">
+    <option name="CHANGED_PATHS">
+      <list>
+        <option value="$PROJECT_DIR$/templates/signin.html" />
+        <option value="$PROJECT_DIR$/templates/signup.html" />
+        <option value="$PROJECT_DIR$/second_book_server/form.py" />
+        <option value="$PROJECT_DIR$/database/settings.py" />
+        <option value="$PROJECT_DIR$/templates/about.html" />
+        <option value="$PROJECT_DIR$/templates/login.html" />
+        <option value="$PROJECT_DIR$/templates/register.html" />
+        <option value="$PROJECT_DIR$/second_book_server/views.py" />
+        <option value="$PROJECT_DIR$/database/urls.py" />
+        <option value="$PROJECT_DIR$/second_book_server/models.py" />
+        <option value="$PROJECT_DIR$/templates/index.html" />
+        <option value="$PROJECT_DIR$/static/css/my_style.css" />
+      </list>
+    </option>
+  </component>
+  <component name="JsBuildToolGruntFileManager" detection-done="true" sorting="DEFINITION_ORDER" />
+  <component name="JsBuildToolPackageJson" detection-done="true" sorting="DEFINITION_ORDER" />
+  <component name="JsGulpfileManager">
+    <detection-done>true</detection-done>
+    <sorting>DEFINITION_ORDER</sorting>
+  </component>
+  <component name="NodePackageJsonFileManager">
+    <packageJsonPaths />
+  </component>
+  <component name="ProjectFrameBounds" extendedState="6">
+    <option name="x" value="71" />
+    <option name="y" value="105" />
+    <option name="width" value="1175" />
+    <option name="height" value="612" />
+  </component>
+  <component name="ProjectLevelVcsManager" settingsEditedManually="true" />
+  <component name="ProjectView">
+    <navigator proportions="" version="1">
+      <foldersAlwaysOnTop value="true" />
+    </navigator>
+    <panes>
+      <pane id="ProjectPane">
+        <subPane>
+          <expand>
+            <path>
+              <item name="database" type="b2602c69:ProjectViewProjectNode" />
+              <item name="database" type="462c0819:PsiDirectoryNode" />
+            </path>
+          </expand>
+          <select />
+        </subPane>
+      </pane>
+      <pane id="Scope" />
+    </panes>
+  </component>
+  <component name="PropertiesComponent">
+    <property name="DatabaseDriversLRU" value="sqlite" />
+    <property name="WebServerToolWindowFactoryState" value="false" />
+    <property name="database.console.LAST_STATE" value="false" />
+    <property name="last_opened_file_path" value="$PROJECT_DIR$" />
+    <property name="nodejs_interpreter_path.stuck_in_default_project" value="undefined stuck path" />
+    <property name="nodejs_npm_path_reset_for_default_project" value="true" />
+    <property name="settings.editor.selected.configurable" value="editor.preferences.fonts.default" />
+  </component>
+  <component name="RecentsManager">
+    <key name="CopyFile.RECENT_KEYS">
+      <recent name="C:\Users\16301\Documents\GitHub\DB_design\database\templates" />
+      <recent name="D:\database\templates" />
+    </key>
+    <key name="MoveFile.RECENT_KEYS">
+      <recent name="D:\database\second_book_server" />
+    </key>
+  </component>
+  <component name="RunDashboard">
+    <option name="ruleStates">
+      <list>
+        <RuleState>
+          <option name="name" value="ConfigurationTypeDashboardGroupingRule" />
+        </RuleState>
+        <RuleState>
+          <option name="name" value="StatusDashboardGroupingRule" />
+        </RuleState>
+      </list>
+    </option>
+  </component>
+  <component name="RunManager">
+    <configuration name="database" type="Python.DjangoServer" factoryName="Django server">
+      <module name="database" />
+      <option name="INTERPRETER_OPTIONS" value="" />
+      <option name="PARENT_ENVS" value="true" />
+      <envs>
+        <env name="PYTHONUNBUFFERED" value="1" />
+        <env name="DJANGO_SETTINGS_MODULE" value="database.settings" />
+      </envs>
+      <option name="SDK_HOME" value="" />
+      <option name="WORKING_DIRECTORY" value="" />
+      <option name="IS_MODULE_SDK" value="false" />
+      <option name="ADD_CONTENT_ROOTS" value="true" />
+      <option name="ADD_SOURCE_ROOTS" value="true" />
+      <option name="launchJavascriptDebuger" value="false" />
+      <option name="port" value="8000" />
+      <option name="host" value="" />
+      <option name="additionalOptions" value="" />
+      <option name="browserUrl" value="" />
+      <option name="runTestServer" value="false" />
+      <option name="runNoReload" value="false" />
+      <option name="useCustomRunCommand" value="false" />
+      <option name="customRunCommand" value="" />
+    </configuration>
+  </component>
+  <component name="SvnConfiguration">
+    <configuration />
+  </component>
+  <component name="TaskManager">
+    <task active="true" id="Default" summary="Default task">
+      <changelist id="56db31ee-e880-459e-8658-4fd5f8fea63b" name="Default Changelist" comment="" />
+      <created>1544255871421</created>
+      <option name="number" value="Default" />
+      <option name="presentableId" value="Default" />
+      <updated>1544255871421</updated>
+      <workItem from="1544255873057" duration="11242000" />
+      <workItem from="1544364289148" duration="4230000" />
+      <workItem from="1544441088073" duration="57000" />
+      <workItem from="1544441164882" duration="93000" />
+      <workItem from="1544487132934" duration="11072000" />
+    </task>
+    <servers />
+  </component>
+  <component name="TimeTrackingManager">
+    <option name="totallyTimeSpent" value="26694000" />
+  </component>
+  <component name="ToolWindowManager">
+    <frame x="-7" y="-7" width="1550" height="838" extended-state="6" />
+    <layout>
+      <window_info anchor="bottom" id="TODO" order="6" />
+      <window_info anchor="bottom" id="Event Log" order="12" side_tool="true" />
+      <window_info anchor="bottom" id="Database Changes" order="10" />
+      <window_info anchor="bottom" id="Run" order="2" weight="0.24307692" />
+      <window_info anchor="bottom" id="Version Control" order="9" />
+      <window_info anchor="bottom" id="Python Console" order="13" />
+      <window_info anchor="bottom" id="Terminal" order="11" weight="0.21692307" />
+      <window_info active="true" content_ui="combo" id="Project" order="0" visible="true" weight="0.17139001" />
+      <window_info anchor="bottom" id="Docker" order="8" show_stripe_button="false" />
+      <window_info anchor="right" id="Database" order="4" visible="true" weight="0.0802969" />
+      <window_info anchor="right" id="SciView" order="3" />
+      <window_info id="Structure" order="1" side_tool="true" weight="0.25" />
+      <window_info anchor="bottom" id="Debug" order="3" weight="0.39938557" />
+      <window_info id="Favorites" order="2" side_tool="true" />
+      <window_info anchor="bottom" id="Database Console" order="7" weight="0.26728112" />
+      <window_info anchor="bottom" id="Inspection" order="5" weight="0.4" />
+      <window_info anchor="right" id="Commander" internal_type="SLIDING" order="0" type="SLIDING" weight="0.4" />
+      <window_info anchor="right" id="Ant Build" order="1" weight="0.25" />
+      <window_info anchor="bottom" id="Message" order="0" />
+      <window_info anchor="bottom" id="Cvs" order="4" weight="0.25" />
+      <window_info anchor="right" content_ui="combo" id="Hierarchy" order="2" weight="0.25" />
+      <window_info anchor="bottom" id="Find" order="1" weight="0.32872504" />
+    </layout>
+  </component>
+  <component name="TypeScriptGeneratedFilesManager">
+    <option name="version" value="1" />
+  </component>
+  <component name="VcsContentAnnotationSettings">
+    <option name="myLimit" value="2678400000" />
+  </component>
+  <component name="editorHistoryManager">
+    <entry file="file://$PROJECT_DIR$/manage.py">
+      <provider selected="true" editor-type-id="text-editor" />
+    </entry>
+    <entry file="file://$PROJECT_DIR$/templates/signup.html" />
+    <entry file="file://$PROJECT_DIR$/venv/Lib/site-packages/django/apps/registry.py">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="-4139">
+          <caret line="151" selection-start-line="151" selection-end-line="151" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/venv/Lib/site-packages/django/contrib/auth/admin.py">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="125">
+          <caret line="5" selection-start-line="5" selection-end-line="5" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/second_book_server/tests.py">
+      <provider selected="true" editor-type-id="text-editor" />
+    </entry>
+    <entry file="file://$PROJECT_DIR$/database/wsgi.py">
+      <provider selected="true" editor-type-id="text-editor" />
+    </entry>
+    <entry file="file://$PROJECT_DIR$/templates/signin.html" />
+    <entry file="file://$PROJECT_DIR$/second_book_server/form.py">
+      <provider selected="true" editor-type-id="text-editor" />
+    </entry>
+    <entry file="file://$PROJECT_DIR$/second_book_server/__init__.py">
+      <provider selected="true" editor-type-id="text-editor" />
+    </entry>
+    <entry file="file://$PROJECT_DIR$/second_book_server/admin.py">
+      <provider selected="true" editor-type-id="text-editor" />
+    </entry>
+    <entry file="file://$APPLICATION_CONFIG_DIR$/consoles/db/ba5b2cb8-7fd2-463c-b7c0-b0dd9acf34ae/console.sql" />
+    <entry file="file://$APPLICATION_CONFIG_DIR$/consoles/db/0541cf6d-9f91-466c-bcf6-95466e31f731/console.sql" />
+    <entry file="das://0541cf6d-9f91-466c-bcf6-95466e31f731/schema/main/table/sqlite_master" />
+    <entry file="das://754ba3f2-9f33-42ed-9fb3-5d3c0945de75/schema/main/table/sqlite_master" />
+    <entry file="das://754ba3f2-9f33-42ed-9fb3-5d3c0945de75/schema/main/table/django_migrations" />
+    <entry file="das://754ba3f2-9f33-42ed-9fb3-5d3c0945de75/schema/main/table/django_admin_log" />
+    <entry file="das://754ba3f2-9f33-42ed-9fb3-5d3c0945de75/schema/main/table/auth_group_permissions" />
+    <entry file="das://754ba3f2-9f33-42ed-9fb3-5d3c0945de75/schema/main/table/auth_permission" />
+    <entry file="das://754ba3f2-9f33-42ed-9fb3-5d3c0945de75/schema/main/table/auth_group" />
+    <entry file="file://$APPLICATION_CONFIG_DIR$/consoles/db/754ba3f2-9f33-42ed-9fb3-5d3c0945de75/console.sql" />
+    <entry file="file://$PROJECT_DIR$/second_book_server/apps.py">
+      <provider selected="true" editor-type-id="text-editor" />
+    </entry>
+    <entry file="file://$PROJECT_DIR$/templates/login.html">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="1550">
+          <caret line="62" column="47" selection-start-line="62" selection-start-column="47" selection-end-line="62" selection-end-column="47" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/second_book_server/test_models.py" />
+    <entry file="file://$PROJECT_DIR$/database/settings.py">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="3175">
+          <caret line="127" selection-start-line="127" selection-end-line="127" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/templates/register.html">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="1550">
+          <caret line="62" column="47" selection-start-line="62" selection-start-column="47" selection-end-line="62" selection-end-column="47" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/templates/details.html">
+      <provider selected="true" editor-type-id="text-editor" />
+    </entry>
+    <entry file="das://754ba3f2-9f33-42ed-9fb3-5d3c0945de75/schema/main/table/second_book_server_activity_price" />
+    <entry file="das://754ba3f2-9f33-42ed-9fb3-5d3c0945de75/schema/main/table/second_book_server_announcement" />
+    <entry file="das://754ba3f2-9f33-42ed-9fb3-5d3c0945de75/schema/main/table/second_book_server_book" />
+    <entry file="das://754ba3f2-9f33-42ed-9fb3-5d3c0945de75/schema/main/table/second_book_server_activity_price_goods_id" />
+    <entry file="das://754ba3f2-9f33-42ed-9fb3-5d3c0945de75/schema/main/table/second_book_server_activity_price_activity_id" />
+    <entry file="das://754ba3f2-9f33-42ed-9fb3-5d3c0945de75/schema/main/table/second_book_server_favorites" />
+    <entry file="das://754ba3f2-9f33-42ed-9fb3-5d3c0945de75/schema/main/table/second_book_server_coupon" />
+    <entry file="das://754ba3f2-9f33-42ed-9fb3-5d3c0945de75/schema/main/table/second_book_server_logininformation" />
+    <entry file="file://$PROJECT_DIR$/templates/about.html">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="1175">
+          <caret line="47" column="56" selection-start-line="47" selection-start-column="56" selection-end-line="47" selection-end-column="56" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="das://754ba3f2-9f33-42ed-9fb3-5d3c0945de75/schema/main/table/second_book_server_user" />
+    <entry file="das://754ba3f2-9f33-42ed-9fb3-5d3c0945de75/schema/main/table/second_book_server_goods_book_id" />
+    <entry file="das://754ba3f2-9f33-42ed-9fb3-5d3c0945de75/schema/main/table/second_book_server_goods" />
+    <entry file="file://$PROJECT_DIR$/database/urls.py">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="575">
+          <caret line="25" column="44" selection-start-line="25" selection-start-column="44" selection-end-line="25" selection-end-column="44" />
+          <folding>
+            <element signature="e#632#664#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/templates/activity.html">
+      <provider selected="true" editor-type-id="text-editor" />
+    </entry>
+    <entry file="file://$PROJECT_DIR$/templates/goods.html">
+      <provider selected="true" editor-type-id="text-editor" />
+    </entry>
+    <entry file="file://$PROJECT_DIR$/templates/announcement.html">
+      <provider selected="true" editor-type-id="text-editor" />
+    </entry>
+    <entry file="file://$PROJECT_DIR$/second_book_server/models.py">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="3400">
+          <caret line="138" column="50" selection-start-line="138" selection-start-column="50" selection-end-line="138" selection-end-column="50" />
+          <folding>
+            <element signature="e#0#71#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="das://754ba3f2-9f33-42ed-9fb3-5d3c0945de75/schema/main/table/second_book_server_activity" />
+    <entry file="das://754ba3f2-9f33-42ed-9fb3-5d3c0945de75/schema/main/table/second_book_server_user_comment" />
+    <entry file="file://$PROJECT_DIR$/second_book_server/views.py">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="1075">
+          <caret line="51" selection-start-line="51" selection-end-line="51" />
+          <folding>
+            <element signature="e#0#11#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/static/css/style1.css">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="-39" />
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/static/css/slippry.css">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="-39" />
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/static/css/style.css">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="-1039" />
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/templates/index.html">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="200">
+          <caret line="100" column="103" selection-start-line="100" selection-start-column="103" selection-end-line="100" selection-end-column="103" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/static/css/my_style.css">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="325">
+          <caret line="13" column="15" selection-start-line="13" selection-start-column="15" selection-end-line="13" selection-end-column="15" />
+        </state>
+      </provider>
+    </entry>
+  </component>
+</project>
\ No newline at end of file
diff --git a/database/db.sqlite3 b/database/db.sqlite3
new file mode 100644
index 0000000..2bb3668
Binary files /dev/null and b/database/db.sqlite3 differ