Question

我有<blockTable>根据用户输入改变大小如果没有足够的空间在同一页面上绘制阻止表，我想继续在下一页上绘图。

<condPageBreak height='1in'/>
<blocklTable ...>
    ...

如果当前页面上没有足够的空间，如何更改blockTable height以跳转到下一页？

Answer 1

无法从condPageBreak标记执行此操作。

但您可以扩展pdf解析器，获取RML代码并计算blockTable高度，然后在调用之前保存更改：

super(report_sxw_extended, self).create_single_pdf(cr, uid, ids, data, report_xml)

为此，您需要在RML报告中的<condPageBreak height="?"/>标记之前添加<blockTable ...>，并在解析器中使用lxml.etree来获取具有height属性和blockTable的节点将成为下一个节点。

etree.XML(report_rml_content).xpath('//condPageBreak[@height="?"]').

使用此：

class account_invoice(report_sxw.rml_parse):
    def __init__(self, cr, uid, name, context):
        super(account_invoice, self).__init__(cr, uid, name, context=context)
        self.localcontext.update({
            'time': time,
        })


class report_sxw_inherited(report_sxw.report_sxw):
    def __init__(self, name, table, rml=False, parser=report_sxw.rml_parse, header='external', store=False):
        #Extend __init__ function to save table reference for further use.
        self.table = table
        super(report_sxw_inherited, self).__init__(name, table, rml, parser, header, store)


    def create_single_pdf(self, cr, uid, ids, data, report_xml, context=None):
        #To rewrite rml code you should inherit this.

        #Get invoice object to check if the field will be removed or not.
        invoice  = pooler.get_pool(cr.dbname).get(self.table).browse(cr, uid, ids[-1], context)

        expected = 0

        row_height = #row height in cm.

        minimum = #number of rows which will always be printed.

        height = 0

        #Parse RML code.
        rml = etree.XML(report_xml.report_rml_content)

        #Search for `condPageBreak` with name = `?`.
        for node in rml.xpath('//condPageBreak[@height="?"]'):
            for tr in node.getnext():
                for td in tr:
                    for para in td:
                        #Use regex to get text between "[[]]". 
                        if para.text:
                            clean = re.findall('(?:\[\[)(.*)(?:\]\])', para.text)
                            if clean:

                                #get attribute name from "object.attribute_name".
                                attr = re.findall('(?:\.)(.*)(?:or\s)', clean[0])

                                #Get tag name from "removeParentNode('tag_name')".
                                tag = re.findall('(?:removeParentNode\([\'\"])(.*)(?:[\'\"])', clean[0])

                                if tag:
                                    #Use buildin "getattr" function to get invoice attribute.
                                    attr = getattr(invoice, attr[0])

                                    # if attr!=0 "0 or removeParentNode('tag_name')" the node will not be removed.
                                    if attr and tag[0] == 'tr':
                                        expected += row_height

            height = minimum + expected
            #Set condPageBreak height to "height"
            node.set('height', "%fcm" % height)

        report_xml.report_rml_content = etree.tostring(rml)
        return super(report_sxw_inherited, self).create_single_pdf(cr, uid, ids, data, report_xml, context)

report_sxw.report_sxw = report_sxw_inherited
report_sxw.report_sxw(
    'report.account.invoice',
    'account.invoice',
    'addons/account/report/account_print_invoice.rml',
    parser=account_invoice
)

Answer 2

我不确定动态更改或中断页面。但我用下面的方法。可能对你有用。

尝试使用此RML报告。

$('html').bind('keydown', function (e) { if (e.keyCode == 8) { return false; } });标记是“CONDitional Page Break”。要使用它，你可以在RML可以处理的任何单位中给它一个高度。

然后将此高度与页面上的剩余可用空间进行比较。如果空间足够，则下一个元素将放置在当前页面上，但如果空间小于您给出的高度，则if($('element').css('opacity') == 0) { doSomething(); }后面的任何内容都会在下一页继续

<condPageBreak/>只有一个属性 - 强制属性高度

例如：

<condPageBreak/>

有关详情：RML User Guide

注意：

在<condPageBreak/>代码
开始之前使用上述示例
例如：

<condPageBreak height="1in"/> <condPageBreak height="72"/>

可以<condpagebreak height =“？cm”>动态变化吗？

2 个答案: