created db ERD

README.md

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-Yarp.
+# Opera Scape db documentation
+
+opera-scape.dbm was created with pgModeler v1.1.5

opera-scape.dbm

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+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+CAUTION: Do not modify this file unless you know what you are doing.
+ Unexpected results may occur if the code is changed deliberately.
+-->
+<dbmodel pgmodeler-ver="1.1.5" use-changelog="false" author="Calum Andrew Morrell" max-obj-count="4"
+	 last-position="0,0" last-zoom="1"
+	 default-schema="public" default-owner="oscape_admin"
+	 layers="Default layer"
+	 active-layers="0"
+	 layer-name-colors="#000000"
+	 layer-rect-colors="#b4b4b4"
+	 show-layer-names="false" show-layer-rects="false">
+<role name="oscape_admin"
+ createdb="true">
+</role>
+
+<database name="opera_scape" is-template="false" allow-conns="true">
+	<role name="oscape_admin"/>
+</database>
+
+<schema name="public" layers="0" fill-color="#e1e1e1" name-color="#000000" sql-disabled="true">
+</schema>
+
+<table name="composer" layers="0" collapse-mode="2" max-obj-count="0" z-value="0">
+	<schema name="public"/>
+	<role name="oscape_admin"/>
+	<position x="80" y="80"/>
+</table>
+
+<table name="opera" layers="0" collapse-mode="2" max-obj-count="0" z-value="0">
+	<schema name="public"/>
+	<role name="oscape_admin"/>
+	<position x="520" y="80"/>
+</table>
+
+</dbmodel>