generalized update sql templating for create

lib/dbwrap.js

@@ -186,13 +186,19 @@ function wrap(db, dir) {
       return new PromiseA(function (resolve, reject) {
         var json = JSON.stringify(obj);
         var data = JSON.parse(json);
-        delete data[idnameCased];
-        json = JSON.stringify(data);
 
-        var sql = "INSERT INTO " + tablename + " (" + idname + ", json) VALUES (?, ?)";
-        var values = [id, json];
+        var sql;
 
-        db.run(sql, values, function (err) {
+        // removes known fields from data
+        sql = strainUpdate(id, data, function sqlTpl(fieldable) {
+          return "INSERT INTO " + tablename + " (" + fieldable.join(', ') + ", " + idname + ")"
+            //+ " VALUES ('" + vals.join("', '") + "')"
+            + " VALUES (" + fieldable.map(function () { return '?'; }).join(", ") + ", ?)"
+            ;
+        });
+
+        console.log('[debug] DB.create() sql:', sql);
+        db.run(sql, [], function (err) {
           if (err) {
             reject(err);
             return;
@@ -215,13 +221,11 @@ function wrap(db, dir) {
       });
     };
 
-    DB.set = function (id, obj) {
-      var json = JSON.stringify(obj);
-      var data = JSON.parse(json);
-
-      return new PromiseA(function (resolve, reject) {
-        var sql;
+    // pull indices from object
+    function strainUpdate(id, data/*, vals*/, cb) {
       var fieldable = [];
+      var json;
+      var sql;
       var vals = [];
 
       (opts.indices || []).forEach(function (col) {
@@ -242,28 +246,53 @@ function wrap(db, dir) {
           + " = '" + db.escape(val) + "'"
           );
           */
-            fieldable.push(db.escape(snakeCase(col.name)) + " = ?");
+          fieldable.push(db.escape(snakeCase(col.name)));
           vals.push(val);
         }
 
         delete data[col.name];
+        delete data[camelCase(col.name)];
       });
+
       delete data[idnameCased];
 
+      if (!fieldable.length || Object.keys(data).length) {
         json = JSON.stringify(data);
-        fieldable.push("json = ?");
+        fieldable.push("json");
         //fieldable.push("json = '" + db.escape(json) + "'");
         vals.push(json);
+      }
 
       vals.push(id);
-        sql = "UPDATE " + tablename + " SET " + fieldable.join(', ') + " WHERE " + idname + " = ?";
+
+      sql = cb(fieldable);
 
       while (vals.length) {
         sql = sql.replace(/\?/, "'" + db.escape(vals.shift()) + "'");
       }
 
-        console.log('[debug] sql:', sql);
-        db.run(sql, vals, function (err) {
+      return sql;
+    }
+
+    DB.set = function (id, obj) {
+      var json = JSON.stringify(obj);
+      var data = JSON.parse(json);
+
+      return new PromiseA(function (resolve, reject) {
+        function sqlTpl(fieldable) {
+          // this will always at least have one fieldable value: json
+          return "UPDATE " + tablename + " SET "
+            + (fieldable.join(' = ?, ') + " = ?")
+            + " WHERE " + idname + " = ?"
+            ;
+        }
+
+        //var vals = [];
+        // removes known fields from data
+        var sql = strainUpdate(id, data/*, vals*/, sqlTpl);
+
+        console.log('[debug] DB.set() sql:', sql);
+        db.run(sql, /*vals*/[], function (err) {
           if (err) {
             reject(err);
             return;