X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/6e39d509471fe9b4e2660e0d1631b350d0c66f40..7a654f8d43fdb43d78b63d90528bed6e86b608cc:/docs/source/Types.html diff --git a/docs/source/Types.html b/docs/source/Types.html new file mode 100644 index 00000000..54fed8f9 --- /dev/null +++ b/docs/source/Types.html @@ -0,0 +1,202 @@ +Sencha Documentation Project
/**
+ * @class Ext.data.Types
+ * <p>This is s static class containing the system-supplied data types which may be given to a {@link Ext.data.Field Field}.<p/>
+ * <p>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.</p>
+ * <p>Developers may add their own application-specific data types to this class. Definition names must be UPPERCASE.
+ * each type definition must contain three properties:</p>
+ * <div class="mdetail-params"><ul>
+ * <li><code>convert</code> : <i>Function</i><div class="sub-desc">A function to convert raw data values from a data block into the data
+ * to be stored in the Field. The function is passed the collowing parameters:
+ * <div class="mdetail-params"><ul>
+ * <li><b>v</b> : Mixed<div class="sub-desc">The data value as read by the Reader, if undefined will use
+ * the configured <tt>{@link Ext.data.Field#defaultValue defaultValue}</tt>.</div></li>
+ * <li><b>rec</b> : Mixed<div class="sub-desc">The data object containing the row as read by the Reader.
+ * Depending on the Reader type, this could be an Array ({@link Ext.data.reader.Array ArrayReader}), an object
+ * ({@link Ext.data.reader.Json JsonReader}), or an XML element.</div></li>
+ * </ul></div></div></li>
+ * <li><code>sortType</code> : <i>Function</i> <div class="sub-desc">A function to convert the stored data into comparable form, as defined by {@link Ext.data.SortTypes}.</div></li>
+ * <li><code>type</code> : <i>String</i> <div class="sub-desc">A textual data type name.</div></li>
+ * </ul></div>
+ * <p>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 <code>lat</code> and <code>long</code>, you would define a new data type like this:</p>
+ *<pre><code>
+// 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'
+};
+</code></pre>
+ * <p>Then, when declaring a Model, use <pre><code>
+var types = Ext.data.Types; // allow shorthand type access
+Ext.define('Unit',
+    extend: 'Ext.data.Model', 
+    fields: [
+        { 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 }
+    ]
+});
+</code></pre>
+ * @singleton
+ */
+Ext.define('Ext.data.Types', {
+    singleton: true,
+    requires: ['Ext.data.SortTypes']
+}, function() {
+    var st = Ext.data.SortTypes;
+    
+    Ext.apply(Ext.data.Types, {
+        /**
+         * @type Regexp
+         * @property stripRe
+         * A regular expression for stripping non-numeric characters from a numeric value. Defaults to <tt>/[\$,%]/g</tt>.
+         * 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) {
+                var defaultValue = this.useNull ? null : '';
+                return (v === undefined || v === null) ? defaultValue : 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.
+         * <p>The synonym <code>INTEGER</code> is equivalent.</p>
+         */
+        INT: {
+            convert: function(v) {
+                return v !== undefined && v !== null && v !== '' ?
+                    parseInt(String(v).replace(Ext.data.Types.stripRe, ''), 10) : (this.useNull ? null : 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.
+         * <p>The synonym <code>NUMBER</code> is equivalent.</p>
+         */
+        FLOAT: {
+            convert: function(v) {
+                return v !== undefined && v !== null && v !== '' ?
+                    parseFloat(String(v).replace(Ext.data.Types.stripRe, ''), 10) : (this.useNull ? null : 0);
+            },
+            sortType: st.none,
+            type: 'float'
+        },
+        
+        /**
+         * @type Object.
+         * @property BOOL
+         * <p>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 <code>true</code>.</p>
+         * <p>The synonym <code>BOOLEAN</code> is equivalent.</p>
+         */
+        BOOL: {
+            convert: function(v) {
+                if (this.useNull && v === undefined || v === null || v === '') {
+                    return null;
+                }
+                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 Ext.Date.parse(v, df);
+                }
+                
+                var parsed = Date.parse(v);
+                return parsed ? new Date(parsed) : null;
+            },
+            sortType: st.asDate,
+            type: 'date'
+        }
+    });
+    
+    Ext.apply(Ext.data.Types, {
+        /**
+         * @type Object.
+         * @property BOOLEAN
+         * <p>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 <code>true</code>.</p>
+         * <p>The synonym <code>BOOL</code> is equivalent.</p>
+         */
+        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.
+         * <p>The synonym <code>INT</code> is equivalent.</p>
+         */
+        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.
+         * <p>The synonym <code>FLOAT</code> is equivalent.</p>
+         */
+        NUMBER: this.FLOAT    
+    });
+});
+
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