- <div class="body-wrap">
- <div class="top-tools">
- <a class="inner-link" href="#Ext.data.Field-props"><img src="../resources/images/default/s.gif" class="item-icon icon-prop">Properties</a>
- <a class="inner-link" href="#Ext.data.Field-methods"><img src="../resources/images/default/s.gif" class="item-icon icon-method">Methods</a>
- <a class="inner-link" href="#Ext.data.Field-events"><img src="../resources/images/default/s.gif" class="item-icon icon-event">Events</a>
- <a class="inner-link" href="#Ext.data.Field-configs"><img src="../resources/images/default/s.gif" class="item-icon icon-config">Config Options</a>
- <a class="bookmark" href="../docs/?class=Ext.data.Field"><img src="../resources/images/default/s.gif" class="item-icon icon-fav">Direct Link</a>
- </div>
- <h1>Class Ext.data.Field</h1>
- <table cellspacing="0">
- <tr><td class="label">Package:</td><td class="hd-info">Ext.data</td></tr>
- <tr><td class="label">Defined In:</td><td class="hd-info"><a href="../src/DataField.js" target="_blank">DataField.js</a></td></tr>
- <tr><td class="label">Class:</td><td class="hd-info">Field</td></tr>
- <tr><td class="label">Extends:</td><td class="hd-info">Object</td></tr>
- </table>
- <div class="description">
- *
-<p>This class encpasulates the field definition information specified in the field definition objects
-passed to <a ext:cls="Ext.data.Record" ext:member="create" href="output/Ext.data.Record.html#create">Ext.data.Record.create</a>.</p>
-<p>Developers do not need to instantiate this class. Instances are created by <a ext:cls="Ext.data.Record.create" href="output/Ext.data.Record.create.html">Ext.data.Record.create</a>
-and cached in the <a ext:cls="Ext.data.Record" ext:member="fields" href="output/Ext.data.Record.html#fields">fields</a> property of the created Record constructor's <b>prototype.</b></p> </div>
-
- <div class="hr"></div>
- <a id="Ext.data.Field-configs"></a>
- <h2>Config Options</h2>
- <table cellspacing="0" class="member-table">
- <tr>
- <th class="sig-header" colspan="2">Config Options</th>
- <th class="msource-header">Defined By</th>
- </tr>
- <tr class="config-row expandable">\r
- <td class="micon"><a class="exi" href="#expand"> </a></td>\r
- <td class="sig">\r
- <a id="Ext.data.Field-convert"></a>\r
- <b>convert</b> : Function <div class="mdesc">\r
- <div class="short">(Optional) A function which converts the value provided by the Reader into an object that will be stored in the Recor...</div>\r
- <div class="long">\r
- (Optional) A function which converts the value provided by the Reader into an object that will be stored in the Record. It is passed the following parameters:<ul> <li><b>v</b> : Mixed<div class="sub-desc">The data value as read by the Reader.</div></li> <li><b>rec</b> : Mixed<div class="sub-desc">The data object containing the row as read by the Reader. Depending on Reader type, this could be an Array, an object, or an XML element.</div></li> </ul> </div>\r
- </div>\r
- </td>\r
- <td class="msource">Field</td>\r
- </tr>\r
- <tr class="config-row alt expandable">\r
- <td class="micon"><a class="exi" href="#expand"> </a></td>\r
- <td class="sig">\r
- <a id="Ext.data.Field-dateFormat"></a>\r
- <b>dateFormat</b> : String <div class="mdesc">\r
- <div class="short">(Optional) A format string for the Date.parseDate function, or "timestamp" if the value provided by the Reader is a U...</div>\r
- <div class="long">\r
- (Optional) A format string for the <a ext:cls="Date" ext:member="parseDate" href="output/Date.html#parseDate">Date.parseDate</a> function, or "timestamp" if the value provided by the Reader is a UNIX timestamp, or "time" if the value provided by the Reader is a javascript millisecond timestamp. </div>\r
- </div>\r
- </td>\r
- <td class="msource">Field</td>\r
- </tr>\r
- <tr class="config-row expandable">\r
- <td class="micon"><a class="exi" href="#expand"> </a></td>\r
- <td class="sig">\r
- <a id="Ext.data.Field-defaultValue"></a>\r
- <b>defaultValue</b> : Mixed <div class="mdesc">\r
- <div class="short">(Optional) The default value used when a Record is being created by a Reader when the item referenced by the mapping ...</div>\r
- <div class="long">\r
- (Optional) The default value used <b>when a Record is being created by a <a ext:cls="Ext.data.Reader" href="output/Ext.data.Reader.html">Reader</a></b> when the item referenced by the <b><tt>mapping</tt></b> does not exist in the data object (i.e. undefined). (defaults to "") </div>\r
- </div>\r
- </td>\r
- <td class="msource">Field</td>\r
- </tr>\r
- <tr class="config-row alt expandable">\r
- <td class="micon"><a class="exi" href="#expand"> </a></td>\r
- <td class="sig">\r
- <a id="Ext.data.Field-mapping"></a>\r
- <b>mapping</b> : String <div class="mdesc">\r
- <div class="short">(Optional) A path specification for use by the Ext.data.Reader implementation that is creating the Record to access t...</div>\r
- <div class="long">\r
- (Optional) A path specification for use by the <a ext:cls="Ext.data.Reader" href="output/Ext.data.Reader.html">Ext.data.Reader</a> implementation that is creating the Record to access the data value from the data object. If an <a ext:cls="Ext.data.JsonReader" href="output/Ext.data.JsonReader.html">Ext.data.JsonReader</a> is being used, then this is a string containing the javascript expression to reference the data relative to the Record item's root. If an <a ext:cls="Ext.data.XmlReader" href="output/Ext.data.XmlReader.html">Ext.data.XmlReader</a> is being used, this is an <a ext:cls="Ext.DomQuery" href="output/Ext.DomQuery.html">Ext.DomQuery</a> path to the data item relative to the Record element. If the mapping expression is the same as the field name, this may be omitted. </div>\r
- </div>\r
- </td>\r
- <td class="msource">Field</td>\r
- </tr>\r
- <tr class="config-row expandable">\r
- <td class="micon"><a class="exi" href="#expand"> </a></td>\r
- <td class="sig">\r
- <a id="Ext.data.Field-name"></a>\r
- <b>name</b> : String <div class="mdesc">\r
- <div class="short">The name by which the field is referenced within the Record. This is referenced by, for example, the dataIndex proper...</div>\r
- <div class="long">\r
- The name by which the field is referenced within the Record. This is referenced by, for example, the <em>dataIndex</em> property in column definition objects passed to <a ext:cls="Ext.grid.ColumnModel" href="output/Ext.grid.ColumnModel.html">Ext.grid.ColumnModel</a> </div>\r
- </div>\r
- </td>\r
- <td class="msource">Field</td>\r
- </tr>\r
- <tr class="config-row alt">\r
- <td class="micon"><a class="exi" href="#expand"> </a></td>\r
- <td class="sig">\r
- <a id="Ext.data.Field-sortDir"></a>\r
- <b>sortDir</b> : String <div class="mdesc">\r
- (Optional) Initial direction to sort. "ASC" or "DESC" </div>\r
- </td>\r
- <td class="msource">Field</td>\r
- </tr>\r
- <tr class="config-row expandable">\r
- <td class="micon"><a class="exi" href="#expand"> </a></td>\r
- <td class="sig">\r
- <a id="Ext.data.Field-sortType"></a>\r
- <b>sortType</b> : Function <div class="mdesc">\r
- <div class="short">(Optional) A function which converts a Field's value to a comparable value in order to ensure correct sort ordering. ...</div>\r
- <div class="long">\r
- (Optional) A function which converts a Field's value to a comparable value in order to ensure correct sort ordering. Predefined functions are provided in <a ext:cls="Ext.data.SortTypes" href="output/Ext.data.SortTypes.html">Ext.data.SortTypes</a> </div>\r
- </div>\r
- </td>\r
- <td class="msource">Field</td>\r
- </tr>\r
- <tr class="config-row alt expandable">\r
- <td class="micon"><a class="exi" href="#expand"> </a></td>\r
- <td class="sig">\r
- <a id="Ext.data.Field-type"></a>\r
- <b>type</b> : String <div class="mdesc">\r
- <div class="short">(Optional) The data type for conversion to displayable value. Possible values are auto (Default, implies no conversio...</div>\r
- <div class="long">\r
- (Optional) The data type for conversion to displayable value. Possible values are <ul><li>auto (Default, implies no conversion)</li> <li>string</li> <li>int</li> <li>float</li> <li>boolean</li> <li>date</li></ul> </div>\r
- </div>\r
- </td>\r
- <td class="msource">Field</td>\r
- </tr>\r
- </table>
- <a id="Ext.data.Field-props"></a>
- <h2>Public Properties</h2>
- <div class="no-members">This class has no public properties.</div> <a id="Ext.data.Field-methods"></a>
- <h2>Public Methods</h2>
- <div class="no-members">This class has no public methods.</div> <a id="Ext.data.Field-events"></a>
- <h2>Public Events</h2>
- <div class="no-members">This class has no public events.</div>
- </div>
\ No newline at end of file
+<div class="body-wrap" xmlns:ext="http://www.extjs.com"><div class="top-tools"><a class="inner-link" href="#Ext.data.Field-props"><img src="resources/images/default/s.gif" class="item-icon icon-prop">Properties</a> <a class="inner-link" href="#Ext.data.Field-methods"><img src="resources/images/default/s.gif" class="item-icon icon-method">Methods</a> <a class="inner-link" href="#Ext.data.Field-events"><img src="resources/images/default/s.gif" class="item-icon icon-event">Events</a> <a class="inner-link" href="#Ext.data.Field-configs"><img src="resources/images/default/s.gif" class="item-icon icon-config">Config Options</a> <a class="bookmark" href="../docs/?class=Ext.data.Field"><img src="resources/images/default/s.gif" class="item-icon icon-fav">Direct Link</a> </div><h1>Class <a href="source/DataField.html#cls-Ext.data.Field">Ext.data.Field</a></h1><table cellspacing="0"><tr><td class="label">Package:</td><td class="hd-info">Ext.data</td></tr><tr><td class="label">Defined In:</td><td class="hd-info">DataField.js</td></tr><tr><td class="label">Class:</td><td class="hd-info"><a href="source/DataField.html#cls-Ext.data.Field">Field</a></td></tr><tr><td class="label">Extends:</td><td class="hd-info">Object</td></tr></table><div class="description"><p>This class encapsulates the field definition information specified in the field definition objects
+passed to <a href="output/Ext.data.Record.html#Ext.data.Record-create" ext:member="create" ext:cls="Ext.data.Record">Ext.data.Record.create</a>.</p>
+<p>Developers do not need to instantiate this class. Instances are created by <a href="output/Ext.data.Record.create.html" ext:cls="Ext.data.Record.create">Ext.data.Record.create</a>
+and cached in the <a href="output/Ext.data.Record.html#Ext.data.Record-fields" ext:member="fields" ext:cls="Ext.data.Record">fields</a> property of the created Record constructor's <b>prototype.</b></p></div><div class="hr"></div><a id="Ext.data.Field-configs"></a><h2>Config Options</h2><table cellspacing="0" class="member-table"><tbody><tr><th colspan="2" class="sig-header">Config Options</th><th class="msource-header">Defined By</th></tr><tr class="config-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Field-allowBlank"></a><b><a href="source/DataField.html#cfg-Ext.data.Field-allowBlank">allowBlank</a></b> : Boolean<div class="mdesc"><div class="short">Used for validating a record, defaults to true.
+An empty value here will cause Ext.data.Record.isValid
+to evaluate to...</div><div class="long">Used for validating a <a href="output/Ext.data.Record.html" ext:cls="Ext.data.Record">record</a>, defaults to <tt>true</tt>.
+An empty value here will cause <a href="output/Ext.data.Record.html" ext:cls="Ext.data.Record">Ext.data.Record</a>.<a href="output/Ext.data.Record.html#Ext.data.Record-isValid" ext:member="isValid" ext:cls="Ext.data.Record">isValid</a>
+to evaluate to <tt>false</tt>.</div></div></td><td class="msource">Field</td></tr><tr class="config-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Field-convert"></a><b><a href="source/DataField.html#cfg-Ext.data.Field-convert">convert</a></b> : Function<div class="mdesc"><div class="short">A function which converts the value provided by the Reader into an object that will be stored
+in the Record. It is pa...</div><div class="long">A function which converts the value provided by the Reader into an object that will be stored
+in the Record. It is passed the following 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><a href="output/Ext.data.Field.html#Ext.data.Field-defaultValue" ext:member="defaultValue" ext:cls="Ext.data.Field">defaultValue</a></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 (<a href="output/Ext.data.ArrayReader.html" ext:cls="Ext.data.ArrayReader">ArrayReader</a>), an object
+(<a href="output/Ext.data.JsonReader.html" ext:cls="Ext.data.JsonReader">JsonReader</a>), or an XML element (<a href="output/Ext.data.XMLReader.html" ext:cls="Ext.data.XMLReader">XMLReader</a>).</div></li>
+</ul></div>
+<pre><code><i>// example of convert <b>function</b></i>
+<b>function</b> fullName(v, record){
+ <b>return</b> record.name.last + <em>', '</em> + record.name.first;
+}
+
+<b>function</b> location(v, record){
+ <b>return</b> !record.city ? <em>''</em> : (record.city + <em>', '</em> + record.state);
+}
+
+<b>var</b> Dude = Ext.data.Record.create([
+ {name: <em>'fullname'</em>, convert: fullName},
+ {name: <em>'firstname'</em>, mapping: <em>'name.first'</em>},
+ {name: <em>'lastname'</em>, mapping: <em>'name.last'</em>},
+ {name: <em>'city'</em>, defaultValue: <em>'homeless'</em>},
+ <em>'state'</em>,
+ {name: <em>'location'</em>, convert: location}
+]);
+
+<i>// create the data store</i>
+<b>var</b> store = <b>new</b> Ext.data.Store({
+ reader: <b>new</b> Ext.data.JsonReader(
+ {
+ idProperty: <em>'key'</em>,
+ root: <em>'daRoot'</em>,
+ totalProperty: <em>'total'</em>
+ },
+ Dude <i>// recordType</i>
+ )
+});
+
+<b>var</b> myData = [
+ { key: 1,
+ name: { first: <em>'Fat'</em>, last: <em>'Albert'</em> }
+ <i>// notice no city, state provided <b>in</b> data object</i>
+ },
+ { key: 2,
+ name: { first: <em>'Barney'</em>, last: <em>'Rubble'</em> },
+ city: <em>'Bedrock'</em>, state: <em>'Stoneridge'</em>
+ },
+ { key: 3,
+ name: { first: <em>'Cliff'</em>, last: <em>'Claven'</em> },
+ city: <em>'Boston'</em>, state: <em>'MA'</em>
+ }
+];</code></pre></div></div></td><td class="msource">Field</td></tr><tr class="config-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Field-dateFormat"></a><b><a href="source/DataField.html#cfg-Ext.data.Field-dateFormat">dateFormat</a></b> : String<div class="mdesc"><div class="short">A format string for the Date.parseDate function, or "timestamp" if the
+value provided by the Reader is a UNIX timesta...</div><div class="long">A format string for the <a href="output/Date.html#Date-parseDate" ext:member="parseDate" ext:cls="Date">Date.parseDate</a> function, or "timestamp" if the
+value provided by the Reader is a UNIX timestamp, or "time" if the value provided by the Reader is a
+javascript millisecond timestamp.</div></div></td><td class="msource">Field</td></tr><tr class="config-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Field-defaultValue"></a><b><a href="source/DataField.html#cfg-Ext.data.Field-defaultValue">defaultValue</a></b> : Mixed<div class="mdesc"><div class="short">The default value used when a Record is being created by a Reader
+when the item referenced by the mapping does not ex...</div><div class="long">The default value used <b>when a Record is being created by a <a href="output/Ext.data.Reader.html" ext:cls="Ext.data.Reader">Reader</a></b>
+when the item referenced by the <tt><a href="output/Ext.data.Field.html#Ext.data.Field-mapping" ext:member="mapping" ext:cls="Ext.data.Field">mapping</a></tt> does not exist in the data
+object (i.e. undefined). (defaults to "")</div></div></td><td class="msource">Field</td></tr><tr class="config-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Field-mapping"></a><b><a href="source/DataField.html#cfg-Ext.data.Field-mapping">mapping</a></b> : String/Number<div class="mdesc"><div class="short">(Optional) A path expression for use by the Ext.data.DataReader implementation
+that is creating the Record to extract...</div><div class="long"><p>(Optional) A path expression for use by the <a href="output/Ext.data.DataReader.html" ext:cls="Ext.data.DataReader">Ext.data.DataReader</a> implementation
+that is creating the <a href="output/Ext.data.Record.html" ext:cls="Ext.data.Record">Record</a> to extract the Field value from the data object.
+If the path expression is the same as the field name, the mapping may be omitted.</p>
+<p>The form of the mapping expression depends on the Reader being used.</p>
+<div class="mdetail-params"><ul>
+<li><a href="output/Ext.data.JsonReader.html" ext:cls="Ext.data.JsonReader">Ext.data.JsonReader</a><div class="sub-desc">The mapping is a string containing the javascript
+expression to reference the data from an element of the data item's <a href="output/Ext.data.JsonReader.html#Ext.data.JsonReader-root" ext:member="root" ext:cls="Ext.data.JsonReader">root</a> Array. Defaults to the field name.</div></li>
+<li><a href="output/Ext.data.XmlReader.html" ext:cls="Ext.data.XmlReader">Ext.data.XmlReader</a><div class="sub-desc">The mapping is an <a href="output/Ext.DomQuery.html" ext:cls="Ext.DomQuery">Ext.DomQuery</a> path to the data
+item relative to the DOM element that represents the <a href="output/Ext.data.XmlReader.html#Ext.data.XmlReader-record" ext:member="record" ext:cls="Ext.data.XmlReader">record</a>. Defaults to the field name.</div></li>
+<li><a href="output/Ext.data.ArrayReader.html" ext:cls="Ext.data.ArrayReader">Ext.data.ArrayReader</a><div class="sub-desc">The mapping is a number indicating the Array index
+of the field's value. Defaults to the field specification's Array position.</div></li>
+</ul></div>
+<p>If a more complex value extraction strategy is required, then configure the Field with a <a href="output/Ext.data.Field.html#Ext.data.Field-convert" ext:member="convert" ext:cls="Ext.data.Field">convert</a>
+function. This is passed the whole row object, and may interrogate it in whatever way is necessary in order to
+return the desired data.</p></div></div></td><td class="msource">Field</td></tr><tr class="config-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Field-name"></a><b><a href="source/DataField.html#cfg-Ext.data.Field-name">name</a></b> : String<div class="mdesc"><div class="short">The name by which the field is referenced within the Record. This is referenced by, for example,
+the dataIndex proper...</div><div class="long">The name by which the field is referenced within the Record. This is referenced by, for example,
+the <tt>dataIndex</tt> property in column definition objects passed to <a href="output/Ext.grid.ColumnModel.html" ext:cls="Ext.grid.ColumnModel">Ext.grid.ColumnModel</a>.
+<p>Note: In the simplest case, if no properties other than <tt>name</tt> are required, a field
+definition may consist of just a String for the field name.</p></div></div></td><td class="msource">Field</td></tr><tr class="config-row "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Field-sortDir"></a><b><a href="source/DataField.html#cfg-Ext.data.Field-sortDir">sortDir</a></b> : String<div class="mdesc">Initial direction to sort (<tt>"ASC"</tt> or <tt>"DESC"</tt>). Defaults to
+<tt>"ASC"</tt>.</div></td><td class="msource">Field</td></tr><tr class="config-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Field-sortType"></a><b><a href="source/DataField.html#cfg-Ext.data.Field-sortType">sortType</a></b> : Function<div class="mdesc"><div class="short">A function which converts a Field's value to a comparable value in order to ensure
+correct sort ordering. Predefined ...</div><div class="long">A function which converts a Field's value to a comparable value in order to ensure
+correct sort ordering. Predefined functions are provided in <a href="output/Ext.data.SortTypes.html" ext:cls="Ext.data.SortTypes">Ext.data.SortTypes</a>. A custom
+sort example:<pre><code><i>// current sort after sort we want</i>
+<i>// +-+------+ +-+------+</i>
+<i>// |1|First | |1|First |</i>
+<i>// |2|Last | |3|Second|</i>
+<i>// |3|Second| |2|Last |</i>
+<i>// +-+------+ +-+------+</i>
+
+sortType: <b>function</b>(value) {
+ <b>switch</b> (value.toLowerCase()) <i>// native toLowerCase():</i>
+ {
+ <b>case</b> <em>'first'</em>: <b>return</b> 1;
+ <b>case</b> <em>'second'</em>: <b>return</b> 2;
+ <b>default</b>: <b>return</b> 3;
+ }
+}</code></pre></div></div></td><td class="msource">Field</td></tr><tr class="config-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.Field-type"></a><b><a href="source/DataField.html#cfg-Ext.data.Field-type">type</a></b> : String<div class="mdesc"><div class="short">The data type for conversion to displayable value if convert
+has not been specified. Possible values are
+<div class="...</div><div class="long">The data type for conversion to displayable value if <tt><a href="output/Ext.data.Field.html#Ext.data.Field-convert" ext:member="convert" ext:cls="Ext.data.Field">convert</a></tt>
+has not been specified. Possible values are
+<div class="mdetail-params"><ul>
+<li>auto (Default, implies no conversion)</li>
+<li>string</li>
+<li>int</li>
+<li>float</li>
+<li>boolean</li>
+<li>date</li></ul></div></div></div></td><td class="msource">Field</td></tr></tbody></table><a id="Ext.data.Field-props"></a><h2>Public Properties</h2><div class="no-members">This class has no public properties.</div><a id="Ext.data.Field-methods"></a><h2>Public Methods</h2><div class="no-members">This class has no public methods.</div><a id="Ext.data.Field-events"></a><h2>Public Events</h2><div class="no-members">This class has no public events.</div></div>
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git.ithinksw.org / extjs.git / blobdiff