X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=parser.js;h=2b75709dddeae00dddf82d8787b9d686a7d70033;hb=8edb29ffa12fda61a939295ce00a6d22133131d1;hp=da8a1d56d7f3e39e4d1dabfd7795c5f666170f46;hpb=6a430a228d953ec4e9fe1b7fe324becb27d9ebbf;p=erdiag.git

diff --git a/parser.js b/parser.js
index da8a1d5..2b75709 100644
--- a/parser.js
+++ b/parser.js
@@ -15,16 +15,17 @@ class ErDiags
 		this.sqlText = "";
 	}
 
-	static get CARDINAL()
+	static CARDINAL(symbol)
 	{
-		return {
-			"*": "0,n",
-			"+": "1,n",
-			"?": "0,1",
-			"1": "1,1",
-			"?R": "(0,1)",
-			"1R": "(1,1)",
-		};
+		let res = { "*": "0,n", "+": "1,n", "?": "0,1", "1": "1,1" } [ symbol[0] ];
+		if (symbol.length >= 2)
+		{
+			if (symbol[1] == 'R')
+				res = '(' + res + ')';
+			else if (['>','<'].includes(symbol[1]))
+				res += symbol[1];
+		}
+		return res;
 	}
 
 	///////////////////////////////
@@ -99,13 +100,12 @@ class ErDiags
 				field.isKey = true;
 				line = line.slice(1);
 			}
-			field.name = line.match(/[^()"\s]+/)[0];
-			let parenthesis = line.match(/\((.+)\)/);
-			if (parenthesis !== null)
+			field.name = line.match(/[^"\s]+/)[0];
+			let sqlClues = line.substring(field.name.length).trim();
+			if (sqlClues.length > 0)
 			{
-				let sqlClues = parenthesis[1];
 				field.type = sqlClues.match(/[^\s]+/)[0]; //type is always the first indication (mandatory)
-				field.qualifiers = sqlClues.substring(field.type.length).trim();
+				field.qualifiers = sqlClues.substring(field.type.length);
 			}
 			attributes.push(field);
 		}
@@ -166,12 +166,15 @@ class ErDiags
 		Object.keys(this.entities).forEach( name => {
 			let newTable = [ ]; //array of fields
 			this.entities[name].attributes.forEach( attr => {
-				newTable.push({
+				let newField = {
 					name: attr.name,
 					type: attr.type,
 					isKey: attr.isKey,
 					qualifiers: attr.qualifiers,
-				});
+				};
+				if (!!attr.qualifiers && !!attr.qualifiers.match(/foreign/i))
+					Object.assign(newField, {ref: attr.qualifiers.match(/references ([^\s]+)/i)[1]});
+				newTable.push(newField);
 			});
 			this.tables[name] = newTable;
 		});
@@ -192,9 +195,11 @@ class ErDiags
 		// Pass 2: parse associations, add foreign keys when cardinality is 0,1 or 1,1
 		this.associations.forEach( a => {
 			let newTableAttrs = [ ];
+			let hasZeroOne = false;
 			a.entities.forEach( e => {
 				if (['?','1'].includes(e.card[0]))
 				{
+					hasZeroOne = true;
 					// Foreign key apparition (for each entity in association minus current one, for each identifying attribute)
 					a.entities.forEach( e2 => {
 						if (e2.name == e.name)
@@ -223,7 +228,7 @@ class ErDiags
 					});
 				}
 			});
-			if (newTableAttrs.length > 1)
+			if (!hasZeroOne && newTableAttrs.length > 1)
 			{
 				// Ok, really create a new table
 				let newTable = {
@@ -241,6 +246,22 @@ class ErDiags
 						});
 					});
 				});
+				// Check for duplicates (in case of self-relationship), rename if needed
+				newTable.fields.forEach( (f,i) => {
+					const idx = newTable.fields.findIndex( item => { return item.name == f.name; });
+					if (idx < i)
+					{
+						// Current field is a duplicate
+						let suffix = 2;
+						let newName = f.name + suffix;
+						while (newTable.fields.findIndex( item => { return item.name == newName; }) >= 0)
+						{
+							suffix++;
+							newName = f.name + suffix;
+						}
+						f.name = newName;
+					}
+				});
 				// Add relationship potential own attributes
 				(a.attributes || [ ]).forEach( attr => {
 					newTable.fields.push({
@@ -390,7 +411,7 @@ class ErDiags
 					mcdDot += '"' + e.name + '":name -- "' + name + '"';
 				else
 					mcdDot += '"' + name + '" -- "' + e.name + '":name';
-				mcdDot += '[label="' + ErDiags.CARDINAL[e.card] + '"];\n';
+				mcdDot += '[label="' + ErDiags.CARDINAL(e.card) + '"];\n';
 			});
 		});
 		mcdDot += '}';
@@ -420,7 +441,7 @@ class ErDiags
 			mldDot += '"' + name + '" [label=<<table BORDER="1" ALIGN="LEFT" CELLPADDING="5" CELLSPACING="0">\n';
 			mldDot += '<tr><td BGCOLOR="#ae7d4e" BORDER="0"><font COLOR="#FFFFFF">' + name + '</font></td></tr>\n';
 			this.tables[name].forEach( f => {
-				let label = (f.isKey ? '<u>' : '') + (!!f.qualifiers && f.qualifiers.indexOf("foreign")>=0 ? '#' : '') + f.name + (f.isKey ? '</u>' : '');
+				let label = (f.isKey ? '<u>' : '') + (!!f.ref ? '#' : '') + f.name + (f.isKey ? '</u>' : '');
 				mldDot += '<tr><td port="' + f.name + '"' + ' BGCOLOR="#FFFFFF" BORDER="0" ALIGN="LEFT"><font COLOR="#000000" >' + label + '</font></td></tr>\n';
 				if (!!f.ref)
 				{
@@ -465,7 +486,8 @@ class ErDiags
 			sqlText += "CREATE TABLE " + name + " (\n";
 			let key = "";
 			this.tables[name].forEach( f => {
-				sqlText += "\t" + f.name + " " + (f.type || "TEXT") + " " + (f.qualifiers || "") + ",\n";
+				let type = f.type || (f.isKey ? "INTEGER" : "TEXT");
+				sqlText += "\t" + f.name + " " + type + " " + (f.qualifiers || "") + ",\n";
 				if (f.isKey)
 					key += (key.length>0 ? "," : "") + f.name;
 			});