Question

“Artproof”变量是真的。如果变量为真，我想改变文本的颜色

def conversations_for(query)
  wildcarded_query = "%#{query}%"
  user_ids = User.where('CONCAT(first_name, " ", last_name) LIKE :query', query: wildcarded_query).pluck(:id)
  current_user.mailbox.conversations.
                       joins(:messages).
                       references('mailboxer_conversations, mailboxer_notifications, mailboxer_receipts, messages_mailboxer_conversations, mr, mn'). # To get rid of warnings
                       select('mailboxer_conversations.*, mailbox_type, trashed').
                       where("mailboxer_notifications.subject LIKE :query
                              OR mailboxer_notifications.body LIKE :query
                              OR mailboxer_notifications.sender_id IN (:user_ids)
                              OR EXISTS ( SELECT * FROM mailboxer_receipts mr
                                                   INNER JOIN mailboxer_notifications mn ON mn.id = mr.notification_id
                                                   WHERE mn.conversation_id = mailboxer_conversations.id
                                                   AND mr.notification_id IN ( SELECT id FROM mailboxer_notifications
                                                                                           WHERE sender_id = :current_user_id )
                                                   AND mr.receiver_id IN (:user_ids))",
                              query: wildcarded_query, user_ids: user_ids, current_user_id: current_user.id)
end

设置颜色条件为：

“color_of_artproof”变量给出Null值，文本为黑色。

Answer 1

变量的范围限定为其父元素。如果在xsl:when指令中定义变量，则不能在其他上下文中使用它。

尝试类似：

<xsl:variable name="color_of_artproof">
    <xsl:when test="$ArtProof = 'True'">green</xsl:when>
    <xsl:otherwise>red</xsl:otherwise>
</xsl:variable>

在XLST中声明和初始化变量

1 个答案: