X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/2e847cf21b8ab9d15fa167b315ca5b2fa92638fc..6a7e4474cba9d8be4b2ec445e10f1691f7277c50:/src/data/Types.js diff --git a/src/data/Types.js b/src/data/Types.js new file mode 100644 index 00000000..8a2a8f2b --- /dev/null +++ b/src/data/Types.js @@ -0,0 +1,187 @@ +/*! + * Ext JS Library 3.2.0 + * Copyright(c) 2006-2010 Ext JS, Inc. + * licensing@extjs.com + * http://www.extjs.com/license + */ +/** + * @class Ext.data.Types + *

This is s static class containing the system-supplied data types which may be given to a {@link Ext.data.Field Field}.

+ *

The properties in this class are used as type indicators in the {@link Ext.data.Field Field} class, so to + * test whether a Field is of a certain type, compare the {@link Ext.data.Field#type type} property against properties + * of this class.

+ *

Developers may add their own application-specific data types to this class. Definition names must be UPPERCASE. + * each type definition must contain three properties:

+ *
+ *

For example, to create a VELatLong field (See the Microsoft Bing Mapping API) containing the latitude/longitude value of a datapoint on a map from a JsonReader data block + * which contained the properties lat and long, you would define a new data type like this:

+ *

+// Add a new Field data type which stores a VELatLong object in the Record.
+Ext.data.Types.VELATLONG = {
+    convert: function(v, data) {
+        return new VELatLong(data.lat, data.long);
+    },
+    sortType: function(v) {
+        return v.Latitude;  // When sorting, order by latitude
+    },
+    type: 'VELatLong'
+};
+
+ *

Then, when declaring a Record, use


+var types = Ext.data.Types; // allow shorthand type access
+UnitRecord = Ext.data.Record.create([
+    { name: 'unitName', mapping: 'UnitName' },
+    { name: 'curSpeed', mapping: 'CurSpeed', type: types.INT },
+    { name: 'latitude', mapping: 'lat', type: types.FLOAT },
+    { name: 'latitude', mapping: 'lat', type: types.FLOAT },
+    { name: 'position', type: types.VELATLONG }
+]);
+
+ * @singleton + */ +Ext.data.Types = new function(){ + var st = Ext.data.SortTypes; + Ext.apply(this, { + /** + * @type Regexp + * @property stripRe + * A regular expression for stripping non-numeric characters from a numeric value. Defaults to /[\$,%]/g. + * This should be overridden for localization. + */ + stripRe: /[\$,%]/g, + + /** + * @type Object. + * @property AUTO + * This data type means that no conversion is applied to the raw data before it is placed into a Record. + */ + AUTO: { + convert: function(v){ return v; }, + sortType: st.none, + type: 'auto' + }, + + /** + * @type Object. + * @property STRING + * This data type means that the raw data is converted into a String before it is placed into a Record. + */ + STRING: { + convert: function(v){ return (v === undefined || v === null) ? '' : String(v); }, + sortType: st.asUCString, + type: 'string' + }, + + /** + * @type Object. + * @property INT + * This data type means that the raw data is converted into an integer before it is placed into a Record. + *

The synonym INTEGER is equivalent.

+ */ + INT: { + convert: function(v){ + return v !== undefined && v !== null && v !== '' ? + parseInt(String(v).replace(Ext.data.Types.stripRe, ''), 10) : 0; + }, + sortType: st.none, + type: 'int' + }, + + /** + * @type Object. + * @property FLOAT + * This data type means that the raw data is converted into a number before it is placed into a Record. + *

The synonym NUMBER is equivalent.

+ */ + FLOAT: { + convert: function(v){ + return v !== undefined && v !== null && v !== '' ? + parseFloat(String(v).replace(Ext.data.Types.stripRe, ''), 10) : 0; + }, + sortType: st.none, + type: 'float' + }, + + /** + * @type Object. + * @property BOOL + *

This data type means that the raw data is converted into a boolean before it is placed into + * a Record. The string "true" and the number 1 are converted to boolean true.

+ *

The synonym BOOLEAN is equivalent.

+ */ + BOOL: { + convert: function(v){ return v === true || v === 'true' || v == 1; }, + sortType: st.none, + type: 'bool' + }, + + /** + * @type Object. + * @property DATE + * This data type means that the raw data is converted into a Date before it is placed into a Record. + * The date format is specified in the constructor of the {@link Ext.data.Field} to which this type is + * being applied. + */ + DATE: { + convert: function(v){ + var df = this.dateFormat; + if(!v){ + return null; + } + if(Ext.isDate(v)){ + return v; + } + if(df){ + if(df == 'timestamp'){ + return new Date(v*1000); + } + if(df == 'time'){ + return new Date(parseInt(v, 10)); + } + return Date.parseDate(v, df); + } + var parsed = Date.parse(v); + return parsed ? new Date(parsed) : null; + }, + sortType: st.asDate, + type: 'date' + } + }); + + Ext.apply(this, { + /** + * @type Object. + * @property BOOLEAN + *

This data type means that the raw data is converted into a boolean before it is placed into + * a Record. The string "true" and the number 1 are converted to boolean true.

+ *

The synonym BOOL is equivalent.

+ */ + BOOLEAN: this.BOOL, + /** + * @type Object. + * @property INTEGER + * This data type means that the raw data is converted into an integer before it is placed into a Record. + *

The synonym INT is equivalent.

+ */ + INTEGER: this.INT, + /** + * @type Object. + * @property NUMBER + * This data type means that the raw data is converted into a number before it is placed into a Record. + *

The synonym FLOAT is equivalent.

+ */ + NUMBER: this.FLOAT + }); +}; \ No newline at end of file