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elements/src/main/java/com/manydesigns/elements/fields/ListField.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,138 @@ | ||
| package com.manydesigns.elements.fields; | ||
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| import com.manydesigns.elements.KeyValueAccessor; | ||
| import com.manydesigns.elements.Mode; | ||
| import com.manydesigns.elements.forms.Form; | ||
| import com.manydesigns.elements.forms.FormBuilder; | ||
| import com.manydesigns.elements.forms.TableForm; | ||
| import com.manydesigns.elements.forms.TableFormBuilder; | ||
| import com.manydesigns.elements.reflection.ClassAccessor; | ||
| import com.manydesigns.elements.reflection.PropertyAccessor; | ||
| import com.manydesigns.elements.reflection.factories.ClassAccessorFactories; | ||
| import com.manydesigns.elements.xml.XhtmlBuffer; | ||
| import org.apache.commons.lang3.StringUtils; | ||
| import org.jetbrains.annotations.NotNull; | ||
| import org.jetbrains.annotations.Nullable; | ||
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|
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| import javax.servlet.http.HttpServletRequest; | ||
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| public class ListField extends AbstractField<Object> { | ||
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| protected final ClassAccessor classAccessor; | ||
| protected final String prefix; | ||
| protected Object value; | ||
| private TableForm form; | ||
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| public ListField(@NotNull PropertyAccessor accessor, @NotNull Mode mode, @Nullable String prefix) { | ||
| super(accessor, mode, prefix); | ||
| this.prefix = prefix; | ||
| classAccessor = ClassAccessorFactories.get(accessor.getType()); | ||
| } | ||
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| protected TableForm ensureForm() { | ||
| if (form == null) { | ||
| form = new TableFormBuilder(classAccessor) | ||
| .configPrefix(StringUtils.defaultString(prefix) + accessor.getName() + ".") | ||
| .build(); | ||
| } | ||
| return form; | ||
| } | ||
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| public ListField(@NotNull PropertyAccessor accessor, @NotNull Mode mode) { | ||
| this(accessor, mode, null); | ||
| } | ||
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| @Override | ||
| public boolean validate() { | ||
| errors.clear(); | ||
| if (isRequired() && value == null) { | ||
| errors.add(getText("elements.error.field.required")); | ||
| return false; | ||
| } | ||
| return ensureForm().validate(); | ||
| } | ||
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| @Override | ||
| public boolean isValid() { | ||
| return super.isValid() && ensureForm().isValid(); | ||
| } | ||
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| @Override | ||
| public void writeToObject(Object obj) { | ||
| ensureForm().writeToObject(accessor.get(obj)); | ||
| } | ||
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| @Override | ||
| public void valueToXhtml(XhtmlBuffer xb) { | ||
| ensureForm().toXhtml(xb); | ||
| } | ||
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| @Override | ||
| public String getStringValue() { | ||
| return null; | ||
| } | ||
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| @Override | ||
| public void setStringValue(String stringValue) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public Object getValue() { | ||
| return value; | ||
| } | ||
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| @Override | ||
| public void setValue(Object value) { | ||
| this.value = value; | ||
| ensureForm().readFromObject(value); | ||
| } | ||
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| @Override | ||
| public void readFromRequest(HttpServletRequest req) { | ||
| super.readFromRequest(req); | ||
| if (mode.isView(insertable, updatable)) { | ||
| return; | ||
| } | ||
| ensureForm().readFromRequest(req); | ||
| setValueFromForm(); | ||
| } | ||
|
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| @Override | ||
| public void readFromObject(Object obj) { | ||
| super.readFromObject(obj); | ||
| if (obj == null) { | ||
| setValue(null); | ||
| } else { | ||
| setValue(accessor.get(obj)); | ||
| } | ||
| } | ||
|
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| @Override | ||
| public void readFrom(KeyValueAccessor keyValueAccessor) { | ||
| if (isReadOnly()) { | ||
| return; | ||
| } | ||
| if(!keyValueAccessor.has(accessor.getName())) { | ||
| setValue(null); | ||
| return; | ||
| } | ||
| bulkChecked = true; | ||
| Object value = keyValueAccessor.get(accessor.getName()); | ||
| if (value == null) { | ||
| setValue(null); | ||
| } else { | ||
| ensureForm().readFrom(keyValueAccessor.inner(value)); | ||
| setValueFromForm(); | ||
| } | ||
| } | ||
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| protected void setValueFromForm() { | ||
| Object object = classAccessor.newInstance(); | ||
| if (object == null) { | ||
| throw new IllegalStateException("Could not create an instance using " + classAccessor); | ||
| } | ||
| ensureForm().writeToObject(object); | ||
| this.value = object; | ||
| } | ||
| } |
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