fixing json default value typescript parsing errors

src/drivers/MssqlDriver.ts

@@ -89,7 +89,10 @@ WHERE TABLE_TYPE='BASE TABLE' and TABLE_SCHEMA in (${schema}) AND TABLE_CATALOG
         entities.forEach(ent => {
             response
                 .filter(filterVal => {
-                    return filterVal.TABLE_NAME === ent.tscName && filterVal.TABLE_SCHEMA === ent.schema;
+                    return (
+                        filterVal.TABLE_NAME === ent.tscName &&
+                        filterVal.TABLE_SCHEMA === ent.schema
+                    );
                 })
                 .forEach(resp => {
                     const tscName = resp.COLUMN_NAME;
@@ -298,7 +301,9 @@ WHERE TABLE_TYPE='BASE TABLE' and TABLE_SCHEMA in (${schema}) AND TABLE_CATALOG
 
         entities.forEach(ent => {
             const entityIndices = response.filter(
-                filterVal => filterVal.TableName === ent.tscName && filterVal.TableSchema === ent.schema
+                filterVal =>
+                    filterVal.TableName === ent.tscName &&
+                    filterVal.TableSchema === ent.schema
             );
             const indexNames = new Set(entityIndices.map(v => v.IndexName));
             indexNames.forEach(indexName => {
@@ -514,9 +519,7 @@ WHERE TABLE_TYPE='BASE TABLE' and TABLE_SCHEMA in (${schema}) AND TABLE_CATALOG
         if (defaultValue.startsWith("(") && defaultValue.endsWith(")")) {
             defaultValue = defaultValue.slice(1, -1);
         }
-        if (defaultValue.startsWith(`'`)) {
-            return `() => "${defaultValue}"`;
-        }
-        return `() => "${defaultValue}"`;
+
+        return `() => \`${defaultValue}\``;
     }
 }

src/drivers/MysqlDriver.ts

@@ -529,6 +529,7 @@ export default class MysqlDriver extends AbstractDriver {
         if (dataType === "set") {
             return `() => ['${defaultValue.split(",").join("','")}']`;
         }
-        return `() => "'${defaultValue}'"`;
+
+        return `() => \`${defaultValue}\``;
     }
 }

src/drivers/OracleDriver.ts

@@ -416,9 +416,7 @@ export default class OracleDriver extends AbstractDriver {
         if (defaultVal.endsWith(" ")) {
             defaultVal = defaultVal.slice(0, -1);
         }
-        if (defaultVal.startsWith(`'`)) {
-            return `() => "${defaultVal}"`;
-        }
-        return `() => "${defaultVal}"`;
+
+        return `() => \`${defaultVal}\``;
     }
 }

src/drivers/PostgresDriver.ts

@@ -655,9 +655,7 @@ export default class PostgresDriver extends AbstractDriver {
             return undefined;
         }
         defaultValue = defaultValue.replace(/'::[\w ]*/, "'");
-        if (defaultValue.startsWith(`'`)) {
-            return `() => "${defaultValue}"`;
-        }
-        return `() => "${defaultValue}"`;
+
+        return `() => \`${defaultValue}\``;
     }
 }

src/drivers/SqliteDriver.ts

@@ -436,9 +436,7 @@ export default class SqliteDriver extends AbstractDriver {
         if (!defVal) {
             return undefined;
         }
-        if (defVal.startsWith(`'`)) {
-            return `() => "${defVal}"`;
-        }
-        return `() => "${defVal}"`;
+
+        return `() => \`${defVal}\``;
     }
 }