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node_modules/mongoose/lib/schema/buffer.js

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+/*!
+ * Module dependencies.
+ */
+
+var utils = require('../utils');
+
+var MongooseBuffer = require('../types').Buffer;
+var SchemaType = require('../schematype');
+
+var Binary = MongooseBuffer.Binary;
+var CastError = SchemaType.CastError;
+var Document;
+
+/**
+ * Buffer SchemaType constructor
+ *
+ * @param {String} key
+ * @param {SchemaType} cast
+ * @inherits SchemaType
+ * @api private
+ */
+
+function SchemaBuffer (key, options) {
+  SchemaType.call(this, key, options, 'Buffer');
+}
+
+/**
+ * This schema type's name, to defend against minifiers that mangle
+ * function names.
+ *
+ * @api private
+ */
+SchemaBuffer.schemaName = 'Buffer';
+
+/*!
+ * Inherits from SchemaType.
+ */
+SchemaBuffer.prototype = Object.create( SchemaType.prototype );
+SchemaBuffer.prototype.constructor = SchemaBuffer;
+
+/**
+ * Check required
+ *
+ * @api private
+ */
+
+SchemaBuffer.prototype.checkRequired = function (value, doc) {
+  if (SchemaType._isRef(this, value, doc, true)) {
+    return null != value;
+  } else {
+    return !!(value && value.length);
+  }
+};
+
+/**
+ * Casts contents
+ *
+ * @param {Object} value
+ * @param {Document} doc document that triggers the casting
+ * @param {Boolean} init
+ * @api private
+ */
+
+SchemaBuffer.prototype.cast = function (value, doc, init) {
+  if (SchemaType._isRef(this, value, doc, init)) {
+    // wait! we may need to cast this to a document
+
+    if (null == value) {
+      return value;
+    }
+
+    // lazy load
+    Document || (Document = require('./../document'));
+
+    if (value instanceof Document) {
+      value.$__.wasPopulated = true;
+      return value;
+    }
+
+    // setting a populated path
+    if (Buffer.isBuffer(value)) {
+      return value;
+    } else if (!utils.isObject(value)) {
+      throw new CastError('buffer', value, this.path);
+    }
+
+    // Handle the case where user directly sets a populated
+    // path to a plain object; cast to the Model used in
+    // the population query.
+    var path = doc.$__fullPath(this.path);
+    var owner = doc.ownerDocument ? doc.ownerDocument() : doc;
+    var pop = owner.populated(path, true);
+    var ret = new pop.options.model(value);
+    ret.$__.wasPopulated = true;
+    return ret;
+  }
+
+  // documents
+  if (value && value._id) {
+    value = value._id;
+  }
+
+  if (value && value.isMongooseBuffer) {
+    return value;
+  }
+
+  if (Buffer.isBuffer(value)) {
+    if (!value || !value.isMongooseBuffer) {
+      value = new MongooseBuffer(value, [this.path, doc]);
+    }
+
+    return value;
+  } else if (value instanceof Binary) {
+    var ret = new MongooseBuffer(value.value(true), [this.path, doc]);
+    if (typeof value.sub_type !== 'number') {
+      throw new CastError('buffer', value, this.path);
+    }
+    ret._subtype = value.sub_type;
+    return ret;
+  }
+
+  if (null === value) return value;
+
+  var type = typeof value;
+  if ('string' == type || 'number' == type || Array.isArray(value)) {
+    var ret = new MongooseBuffer(value, [this.path, doc]);
+    return ret;
+  }
+
+  throw new CastError('buffer', value, this.path);
+};
+
+/*!
+ * ignore
+ */
+function handleSingle (val) {
+  return this.castForQuery(val);
+}
+
+function handleArray (val) {
+  var self = this;
+  return val.map( function (m) {
+    return self.castForQuery(m);
+  });
+}
+
+SchemaBuffer.prototype.$conditionalHandlers =
+  utils.options(SchemaType.prototype.$conditionalHandlers, {
+    '$gt' : handleSingle,
+    '$gte': handleSingle,
+    '$in' : handleArray,
+    '$lt' : handleSingle,
+    '$lte': handleSingle,
+    '$ne' : handleSingle,
+    '$nin': handleArray
+  });
+
+/**
+ * Casts contents for queries.
+ *
+ * @param {String} $conditional
+ * @param {any} [value]
+ * @api private
+ */
+
+SchemaBuffer.prototype.castForQuery = function ($conditional, val) {
+  var handler;
+  if (arguments.length === 2) {
+    handler = this.$conditionalHandlers[$conditional];
+    if (!handler)
+      throw new Error("Can't use " + $conditional + " with Buffer.");
+    return handler.call(this, val);
+  } else {
+    val = $conditional;
+    return this.cast(val).toObject();
+  }
+};
+
+/*!
+ * Module exports.
+ */
+
+module.exports = SchemaBuffer;